PUBLICATIONS

Scholar citations from Google:

https://scholar.google.com.tw/citations?user=s9NFpKMAAAAJ&hl=zh-TW&oi=ao

A. Journal papers

1. W.-C. Fang, B. J. Sheu, O. T.-C. Chen and J. Choi, "A VLSI neural processor for image data compression using self-organization networks," IEEE Transactions on Neural Networks, vol. 3, no. 3, pp. 506-518, May 1992.

2. O. T.-C. Chen, B. J. Sheu and W.-C. Fang, "Image compression on a VLSI neural-based vector quantizer," Journal of Information Processing and Management, vol. 28, no. 6, pp. 687-706, Pergamon Press Ltd.: New York, 1992.

3. W.-C. Fang, C. Chang, B. J. Sheu, O. T.-C. Chen and J. Curlander, "VLSI systolic binary tree-searched vector quantizer for image compression," IEEE Transactions on VLSI Systems, vol. 2, no. 1, pp. 33-44, Mar. 1994.

4. J. Choi, B. J. Sheu and O. T.-C. Chen, "A monolithic GaAs receiver for optical interconnect systems," IEEE Journal of Solid-State Circuits, vol. 29, no. 3, pp. 328-331, Mar. 1994.

5. O. T.-C. Chen, Z. Zhang and B. J. Sheu, "An adaptive vector quantizer based on the gold-washing method," IEEE Transactions on Circuits and Systems for Video Technology, vol. 4, no. 2, pp. 143-157, April 1994.

6. O. T.-C. Chen, B. J. Sheu and W.-C. Fang, "Image compression using self-organization networks," IEEE Transactions on Circuits and Systems for Video Technology, vol. 4, no. 5, pp. 480-489, Oct. 1994.

7. S. H. Bang, O. T.-C. Chen, J. C. Chang and B. J. Sheu "Paralleled hardware annealing in multi-level hopfield neural networks for optimal solutions" IEEE Transactions on Circuits and Systems: Part II, vol. 42, no. 1, p. 46-49, Jan. 1995.

8. O. T.-C. Chen, “Motion estimation using one-dimensional gradient descent search,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 10, no. 4, pp. 608-616, June 2000.

9. O. T.-C. Chen and W. Liu, “An FIR processor with programmable dynamic data ranges,” IEEE Transactions on VLSI Systems, vol. 8, no. 4, pp. 440-446, Aug. 2000.

10. O. T.-C. Chen and R. Sheen “A power-efficiency wide-range phase-locked loop,” IEEE Journal of Solid-State Circuits, vol. 37, no. 1, pp. 51-62, Jan. 2002.

11. O. T.-C. Chen, R. Sheen and S. Wang, “A low-power adder operating on effective dynamic data ranges,” IEEE Transactions on VLSI Systems, vol. 10, no. 4, pp. 435-453, Aug. 2002.

12. O. T.-C. Chen, S. Wang and Y. Wu, “Minimization of switching activities of partial products for designing low-power multipliers,” IEEE Transactions on VLSI Systems, vol. 11, no. 3, pp. 418-433, June 2003.

13. Heng-Chou Chen and O. T.-C. Chen, “Population fitness probability for effectively terminating evolution operations of a genetic algorithm,” IEICE Transactions on Information and Systems, vol. E89-D, no.12, pp. 3012-3014, Dec. 2006.

14. Heng-Chou Chen and O. T.-C. Chen, “Convergence performance analyses of fast data-reusing normalized least mean squared algorithm,” IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E90-A, no. 1, pp. 249-256, Jan. 2007.

15. O. T.-C. Chen, Li-Hsun Chen, Nai-Wei Lin and Chih-Chang Chen, “Application-specific data path for highly efficient computation of multistandard video codecs,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 17, no. 1, pp. 26-42, Jan. 2007.

16. O. T.-C. Chen and Li-Hsun Chen, “A hardware-efficiency programmable FIR processor using input-data and tap folding,” Eurasip Journal of Applied Signal Processing, Article ID: 92523, 14 pages, 2007.

17. O. T.-C. Chen and Chia-Hsiung Liu, “Content-dependent watermark scheme in compressed speech with identifying manner and location of attacks,” IEEE Transactions on Audio, Speech and Language Processing, vol. 15, no. 5, pp. 1605-1616, July 2007.

18. O. T.-C. Chen, Wei-Jean Liu, Li-Kuo Dai, Ping-Kuo Weng and Far-Wen Ji, “Extended one-dimensional analysis to effectively derive quantum efficiency of various CMOS photodiodes,” IEEE Transactions on Electron Devices, vol. 54, no.10, pp.2659-2668, Oct. 2007.

19. O. T.-C. Chen and Chih-Chang Chen, “Automatically-determined region of interest in JPEG 2000,” IEEE Transactions on Multimedia, vol. 9, iss. 7, pp. 1333-1345, Nov. 2007.

20. O. T.-C. Chen and Wen-Chih Wu, “Highly robust, secure and perceptual-quality echo hiding scheme,” IEEE Transactions on Audio, Speech and Language Processing, vol. 16, no. 3, pp. 629-638, Mar. 2008.

21. Yuan Been Chen and O. T.-C. Chen, “Image segmentation method using thresholds automatically determined from picture contents,” Eurasip Journal on Image and Video Processing, Article ID 140492, 15 pages, 2009.

22. O. T.-C. Chen, Meng-Lin Hsia and Chih-Chang Chen, “Low-complexity inverse transforms of video codecs in an embedded programmable platform,” IEEE Transactions on Multimedia, vol. 13, issue 5, pp. 905-921, Oct. 2011.

23. O. T.-C. Chen and Chih-Yu Tsai, “CPW-fed wideband printed dipole antenna for digital TV applications,” IEEE Transactions on Antennas and Propagation, vol. 59, no. 12, pp. 4826-4830, Dec. 2011.

24. O. T.-C. Chen, Cheng-Ta Chan, and Robin R.-B. Sheen, “Trans-impedance limit exploration and inductor-less bandwidth extension for designing wideband amplifiers,” IEEE Transactions on VLSI Systems, vol. 24, no. 1, pp. 348-352, Jan. 2016.

25. Shih-Jou Yu, Jerry Chih-Yuan Sun, and O. T.-C. Chen, “Effect of AR-based online wearable guides on university students’ situational interest and learning performance,” Universal Access in the Information Society, Special Issue on “The Applications of Augmented Reality for Universal Access in Online Education, vol.18, no. 2, pp. 287-299, June 2019. (Springer; DOI: 10.1007/s10209-017-0591-3, electronic version: 11 Nov. 2017)

26. Manh-Hung Ha, and Oscal T.-C. Chen, “Deep neural networks using capsule networks and skeleton-based attentions for action recognition,” IEEE Access, vol. 9, pp. 6164-6178, Jan. 2021. (DOI: 10.1109/ACCESS.2020.3048741)

27. Manh-Hung Ha, and Oscal T.-C. Chen, “Deep neural networks using residual fast-slow refined highway and global atomic spatial attention for action recognition and detection,” IEEE Access, vol. 9, pp. 164887-164902, Dec. 2021. (DOI: 10.1109/ACCESS.2021.3134694)

B. Books and book chapters

1. O. T.-C. Chen, Toward Microelectronics-Based Intelligent Systems Including Neural Network Understanding, USC-SIPI Report #269, Aug. 1994. (Ph.D. dissertation)

2. O. T.-C. Chen, "Intelligent speech/audio processing for multimedia applications," IEEE edited book: Multimedia Technology for Applications, pp. 431-462, 1998. (book chapter: chapter 14)

3. O. T.-C. Chen, W. Liu, R. Sheen, J. Hwang, F. Jih, P. Weng, L. Dai, S. Tang and K. Huang, “Photo-electronic Principles, Components and Applications,” John Wiley & Sons edited book: Three-Dimensional Holographic Imaging, pp. 139-165, 2002. (book chapter: chapter 8)

4. O. T.-C. Chen and Wei-Jean Liu, “Color-selective CMOS photodiodes based on junction structures and process recipes,” INTECH edited book: Advances in Photodiodes, pp. 159-180, 2011. (book chapter: chapter 8)

5. O. T.-C. Chen, Yi-Yang Lee, and Robin R.-B. Sheen, “Physical characteristics, sensors and applications of 2D/3D-integrated CMOS photodiodes,” INTECH edited book: Photoelectronics - Materials and Devices, ISBN 978-953-51-2174-9, Oct. 7th, 2015. (book chapter: chapter 11)

C. Patents

1. O. T.-C. Chen and J. Wang, “Programmable finite impulse response processor with scaleable dynamic data range,” US Patent, patent number: 6,163,788, period: Dec. 19, 2000 – June 24, 2018.

2. H. Chen and O. T.-C. Chen, “調適型數位濾波器之學習方法與裝置,” Taiwan Patent, patent number: 137,680, period: June 16, 2001 – Sept. 15, 2019, “Adaptive filter and learning method thereof,” US Patent, patent number: 6,654,412 B1, period: Nov. 25, 2003 – Mar. 7, 2020.

3. O. T.-C. Chen and H. Hsieh, “訊號處理方法及裝置,” Taiwan Patent, patent number: 143,137, period: Sept. 24, 2001 – Sept. 2, 2019, “Signal processing method and device therefore,” US Patent, patent number: 6,658,161, period: Dec. 2, 2003 – Apr. 24, 2020.

4. O. T.-C. Chen and R. Sheen, ‘寬頻省電之壓控振盪器,” Taiwan Patent, patent number: 172,621, period: Feb. 21, 2003 – April 12, 2020, “A wide-range and low-power consumption voltage-controlled oscillator,” US Patent, patent number: 6,310,523 B1, period: Oct. 30, 2001 – May 8, 2020.

5. O. T.-C. Chen, I. Hsu and R. Ma, “低功率消耗的算術裝置及方法” Taiwan Patent, patent number: 170,810, period: Dec. 21, 2002 – May 5, 2019, “Arithmetic device and method with low power consumption,” US patent, patent number: 6,629,119 B1, period: Sept. 30, 2003 – Nov. 30, 2019.

6. O. T.-C. Chen, G. Chen and R. Ma, “低耗電乘法裝置及其運算方法,” Taiwan Patent, patent number: 153,077, period: Mar. 11, 2002 – Nov. 28, 2020, “Energy saving multiplication device and method,” US patent, patent number: 6,785,702 B2, period: Aug. 31, 2004 – Aug. 19, 2022.

7. Z. Lee, O. T.-C. Chen and R. Sheen, “多相位振盪器及多相位振盪訊號產生方法,” Taiwan Patent, patent number: 170,142, period: Dec. 11, 2002 – Jan. 20, 2022, “Multi-phase oscillator and multi-phase oscillation signal generation method,” US patent, patent number: 6,856,208, period: Feb. 15, 2005 – May 17, 2022.

8. L. Dai, P. Weng, K. Huang, F. Jih, W. Liu, and O. T.-C. Chen, 針對頻譜具有平坦或選擇響應之可調適光電二極體架構方法與裝置 (Methods and Devices of uniform and selected frequency responses of photodiodes), Taiwan Patent, patent number: 207,088, period: June 21, 2004 – Dec. 11, 2022.

9. O. T.-C. Chen and S. Hsu, 通用型有限場乘法器裝置, Taiwan Patent, patent number: 202,615, period: May 21, 2004 – Dec. 17, 2020, “General finite-field multiplier and method of the same,” US patent, patent number: 6,925,479, period: Aug. 2, 2005 – Apr. 30, 2021.

10. H. Chen, O. T.-C. Chen and H. Yeh, 轉換函數之硬體架構設計方法及裝置, “VLSI Implementation methods and architectures for transfer functions,” Taiwan Patent, patent number: I220,716, Sept. 1, 2004 – May 18, 2023.

11. O. T.-C. Chen, C. Chen and H. Wu, 一種自動偵測影像中有興趣區域之方法, Taiwan Patent, patent number: I226,189, period: Jan. 1, 2005 – Mar. 27, 2023, “Method of automatically determining the region of interest from an image,” US patent, patent number: 7,162,095 B2, period: Jan. 9, 2007 – June 13, 2023.

12. H. Jan, S. Wang, M. Hsia and O. T.-C. Chen, 光通訊傳輸系統之快速量測方法, “The method of rapid measurements of optical communication systems,” Taiwan Patent, patent number: I232,926, period: May 21, 2005 – April 26, 2024.

13. O. T.-C. Chen, T. Chen, K. Chen, C. Ling and M. Li, 寬頻的平板偶極天線, Taiwan patent, patent number: M284,087, period: Dec. 21, 2005 – Aug. 24, 2015, “A wide-band planar dipole antenna,” US patent, patent number: 7,619,565B2, period: Nov. 17, 2009 – Aug. 25, 2026.

14. O. T.-C. Chen, W. Liu and H. Yeh, 可提高CMOS影像感測器動態範圍之電路裝置及方法, Taiwan Patent, patent number: I260,919, period: Aug. 21, 2006 – Mar. 28, 2025, “Method and apparatus of a high dynamic-range CMOS image sensor with adaptive supply charge,” US patent, patent number: 7,605,398, period: Oct. 20, 2009 – Aug. 26, 2025.

15. O. T.-C. Chen and C. Liu, 語音浮水印機制, “A speech watermarking scheme,” Taiwan Patent, patent number: I273,845, period: Feb. 11, 2007 – Dec. 8, 2024.

16. O. T.-C. Chen, T. Chen and C. Ling, 數位電視廣播訊號接收與傳輸裝置, “Receiving and transmitting devices of digital TV broadcasting signals,” Taiwan patent, patent number: M304,863, period: Jan. 11, 2007 – June 19, 2016

17. O. T.-C. Chen, C. F. Chen, C. C. Chen and F. C. Chen, 減少視訊編/解碼壓縮裝置中參考畫面儲存記憶體存取量與大小之方法, Taiwan Patent, patent number: I277,013, period: Mar. 21, 2007 – Jan. 31, 2025, “Method of reducing buffered-frame memory accesses and sizes in a video codec,” US patent, patent number: 7,936,826, period: May 3, 2011 – Mar. 2, 2030.

18. O. T.-C. Chen et al. , 充當臨時的局部讀卡機及偵測電力於無線射頻, “High performance RFID system and operating method thereof,” Taiwan patent, patent number : I300,192, period : Aug. 21, 2008 – Nov. 25, 2024.

19. O. T.-C. Chen, M. H. Shen, M. F. Hsieh, T. Chen and C. M. Hung, 訊號接收裝置, “Signal receiving device,” Taiwan patent, patent number: M354,877, period: Apr. 11, 2009 – Oct. 3, 2018

20. T. Chen, Y. Fu and O. T.-C. Chen, 多方向電視選單介面, “Multi-directional function-selection interface for TV,” Taiwan patent, patent number: M256,225, period: May 1, 2009 – Dec. 5, 2018

21. C. Li, O. T.-C. Chen and G. Wu, 節省內存資源的方法與裝置, “Method and device for reducing memory resource utilization,” China patent, patent number: ZL200610063664.8, period: Sept. 23, 2009 – Dec. 28, 2026, and 節省記憶體資源的方法與裝置及使用該方法之電腦可記錄媒體Taiwan patent, patent number: I322,352, Mar. 21, 2010 – Dec. 7, 2026.

22. C. Chang, H. Chen and and O. T.-C. Chen, 應用重組索引解碼查表之可變長度解碼器及其解碼方法, Taiwan patent, patent number: I336,567, period: Jan. 21, 2011 – Mar. 06, 2027, “Variable length decoder utilizing reordered index decoding look-up-table (LUT) and method of using the same,” US patent, patent number: 7,460,036, period: Dec. 2, 2008 – Oct. 7, 2027.

23. O. T.-C. Chen, T. Chen and C. Chen, 依使用者喜好調整可播放之電視節目分級上限值之方法與系統, “Method and system of parent control in TV programs adapting to personal preferrence,” Taiwan patent, patent number: I324,017, period: Apr. 21, 2010 – Jun. 19, 2026

24. O. T.-C. Chen, T. Chen, K. Chen and Chih-Yu Tsai, 平板式單極天線, “A planar monopole antenna,” Taiwan patent, patent number: M388,742, period: Sep. 11, 2010 – Mar. 25, 2020

25. T. Chen, C. Wang and O. T.-C. Chen, 射頻影音接收和解調整合裝置, “Integrated radio-frequency receiver and demodulator for audio-visual reception,” Taiwan patent, patent number: M390,006, period: Oct. 1, 2010 – Apr. 8, 2020

26. H. Chen, C. Chang and and O. T.-C. Chen, 運動向量預測方法及其預測裝置, “Motion vector prediction method and apparatus,” Taiwan patent, patent number: I323,132, period: Apr. 1, 2010 – Dec. 28, 2026.

27. T. Chen and O. T.-C. Chen, 可自動更新之網路電視系統, “Automatic updating mechanism in an internet TV system,” Taiwan patent, patent number: M379,294, period: Apr. 21, 2010 – Dec. 25, 2019.

28. H. Yang, W. Weng and O. T.-C. Chen, 於螢幕中開立訊框以顯示資訊的方法與系統, “Method and aparatus of window openning in a screen,” Taiwan patent, patent number: I338,507, period: Mar. 1, 2011 – Jun. 20, 2026.

29. Y. Wang, G. Wu, C. Chang and O. T.-C. Chen, 整合的轉換方法與裝置, “An integrated transform method and device,” Taiwan Patent, patent number: I342,501, period: May 21, 2011 – Oct. 24, 2026, “Integrated conversion method and apparatus,” US patent, patent number: 8,150,901 B2, period: Apr. 3, 2012 – Dec. 26, 2030.

30. C. Chang and O. T.-C. Chen, 在影像壓縮系統中使用分頻的可變長度編碼模組之硬體架構, “Variable length encoding device of image compression system,” US patent, patent number: 8,254,709 B2, period: Oct. 28, 2012 – Feb. 15, 2031.

31. Y. Wang, G. Wu and O. T.-C. Chen, 移動向量之編碼模式選擇方法及其相關編碼模式選擇裝置、及其機器可讀取媒體, Taiwan Patent, patent number: I398,169, period: June 1, 2013 – Dec. 22, 2028, “Motion vector coding mode selection method and coding mode selection apparatus and machine readable medium using the same,” US patent, patent number: 8,416,855B2, period: Apr. 9, 2013 – Oct. 1, 2030.

32. O. T.-C. Chen, Chih-Feng Tseng and Meng-Lin Hsia, 低計算複雜度之資料反轉換與次取樣的方法, Taiwan patent, patent number: I392,373, period: Apr. 1, 2013 –Sept. 3, 2029; “Low-complexity inverse transform and sub-sampling,” US patent, patent number: 8,559,500B2, period: Oct. 15, 2013 – Jul. 14, 2031.

33. O. T.-C. Chen, Ming-Chih Lin, Chieh-Ning Chan and Zhe Ming Liu, 2D/3D(二維/三維)雙模式之影像感測電路, Taiwan Patent, patent number: I432,023, period: Mar. 21, 2014 – Sept. 19, 2030; “2D/3D dual-mode image sensing circuitry with a pull-down unit,” US patent, patent number: 8,614,411B2, period: Dec. 24, 2013 – Dec. 30, 2030.

34. O. T.-C. Chen and Meng-Lin Hsia, 低複雜度之反轉換計算方法, Taiwan patent, patent number: I412281, period: Oct. 11, 2013 – Dec. 27, 2030; “Low-complexity inverse transform computation method,” US patent, patent number: 8,745,116, period: June 3, 2014 – May 26, 2031.

35. Y. Wang, C. Chang, G. Wu and O. T.-C. Chen, 影像處理方法及其系統, Taiwan Patent, patent number: I424,376, period: Jan. 21, 2014 – Aug. 24, 2030; “Method for processing image and system processing the same,” US patent, patent number: 8,553,986 B2, period: Oct. 8, 2013 – June 29, 2031.

36. Jen-Yi Pan, O. T.-C. Chen and Wen-Nung Lie, 網際網路影音資料之個人化排序方法 “Personalized ranking method of video and audio data on internet,”Taiwan Patent, patent number: I449,410, period: Aug. 11, 2014 – Jul. 28, 2031.

37. O. T.-C. Chen, Ping-Tsung Lu and Jia-You Ke, 運用語音情緒或激動程度來輔助分辨語音信號之性別或年齡的方法, Taiwan Patent, patent number: I473,080, period: Feb. 11, 2015 – Apr. 10, 2032; “Emotion-driven gender and age classifications of speech signals,” US patent, patent number: 9,123,342 B2, period: Sept. 1, 2015 – Jul. 27, 2032.

38. C. Chang, Y. Wang, G. Wu, O. T.-C. Chen, C. Li, and G. Chen, 超音波波束成像系統與方法、及其波束合成電路, Taiwan Patent number : I613,459, period : Feb. 1st, 2018 Dec. 29th, 2034,“Ultrasound image system and method thereof, and beamforming circuits,”US patent, patent number: 10,048,360 B2, period: Aug. 14th, 2018 Sept. 22th, 2035.

D. Conference papers

1. W.-C. Fang, B. J. Sheu and O. T.-C. Chen, "A neural network based VLSI vector quantizer for real-time image compression," Proc. of IEEE & NASA Data Compression Conference, J. A. Storer, J. H. Reif (Ed.), IEEE Computer Society Press: Los Alamitos, CA, pp. 342-351, April 1991.

2. O. T.-C. Chen, B. J. Sheu and W.-C. Fang, "Adaptive codebook construction and real-time hardware implementation for binary tree-searched vector quantization," Proc. of IEEE Workshop on Visual Signal Processing and Communication, pp. 35-38, Hsinchu, Taiwan, June 1991.

3. B. J. Sheu, C.-F. Chang, T.-H. Chen and O. T.-C. Chen, "Neural-based analog trainable vector quantizer and digital systolic processors," Proc. of IEEE International Symposium on Circuits and Systems, vol. 3, pp. 1380-1383, Singapore, June 1991.

4. W.-C. Fang, B. J. Sheu and O. T.-C. Chen, "A real-time VLSI neuro-processor for adaptive image compression based upon frequency- sensitive competitive learning," Proc. of IEEE/INNS International Joint Conf. on Neural Networks, vol. I, pp. 429-436, Seattle, WA, July 1991.

5. O. T.-C. Chen, B. J. Sheu and W.-C. Fang, "Adaptive vector quantizer for image compression using self-organization approach," Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, vol. II, pp. 385-388, San Francisco, CA, Mar. 1992.

6. O. T.-C. Chen, Z. Zhang and B. J. Sheu, "An adaptive high-speed lossy data compression," Proc. of IEEE & NASA Data Compression Conference, J. Storer, M. Cohn (Ed.), IEEE Computer Society Press: Los Alamitos, CA, pp. 349-358, Mar. 1992.

7. O. T.-C. Chen, Z. Zhang and B. J. Sheu "An adaptive high-speed vector quantization," VLSI Signal Processing V, Editors: K. Yao, R. Jain, I. Rabaey, IEEE Press: New York, pp. 205-214, Oct. 1992.

8. O. T.-C. Chen, T. Berger and B. J. Sheu, "VLSI implementation of the hippocampal dentate gyrus," Proc. of INNS World Congress on Neural Networks, vol. II, pp. 647-652, San Diego, CA, June 1994.

9. O. T.-C. Chen and B. J. Sheu, "Neural networks for learning space trajectories based on quasi-Newton method," Proc. of INNS World Congress on Neural Networks, vol. IV, pp. 354-359, San Diego, CA, June 1994.

10. O. T.-C. Chen and B. J. Sheu, "Optimization schemes for neural network training," Proc. of IEEE World Congress on Computational Intelligence, vol. II, pp. 817-822, Orlando, FL, June 1994.

11. O. T.-C. Chen, T. Berger and B. J. Sheu, "VLSI implementation of the hippocampal on nonlinear system model," Proc. of IEEE World Congress on Computational Intelligence, vol. IV, pp. 2009-2014, Orlando, FL, June 1994.

12. O. T.-C. Chen, Y.-C. Lu, H.-T. Chang and J.-M. Shyu, "Microelectronics-based intelligent neural networks," Proc. of International Symposium on Artificial Neural Networks, pp. 333-338, Tainan, Taiwan, Dec. 1994. (invited paper)

13. O. T.-C. Chen, Y.-C. Lu and H.-T. Chang, "A fuzzy reasoning processor for camera image autofocus," Proc. of SPIE's Symposium on Visual Communications and Image Processing, vol. 2501, pp. 347-354, Taipei, Taiwan, May 1995.

14. H.-T. Chang, O. T.-C. Chen, W.-J. Chen, S.-R. Luo, Y.-C. Lu and J.-M. Shyu, "A pipelined fuzzy reasoning processor and its software development system," Proc. of International Symposium on VLSI Technology, Systems, and Applications, pp. 252-256, May 1995.

15. H.-T. Chang, O. T.-C. Chen, W.-J. Chen, H.-J. Deng, Y.-R. Hsu, M.-R. Lee, Y.-C. Lu, S.-R. Luo, H.-C. Shyu and J.-M. Shyu, "A fuzzy reasoning processor with application development environments," Proc. of Sixth International Fuzzy Systems Association World Congress, vol. 1, pp. 641-644, Sao Paulo, Brazil, July 1995.

16. O. T.-C. Chen, C.-Y. Chen, H.-T. Chang, F.-R. Hsu, H.-L. Yang and Y.-G. Lee, "A multi-lingual speech recognition system using a neural network approach," Proc. of IEEE International Conference on Neural Networks, Washington, DC, USA, pp. 1576-1581, June 1996.

17. R. Huang, C. J. Kuo, L.-L. Tsai and O. T.-C. Chen, "EEG pattern recognition - arousal states detection and classification," Proc. of IEEE International Conference on Neural Networks, Washington, DC, USA, pp. 641-646, June 1996.

18. O. T.-C. Chen et al., “A real-time speech recognition system using learning vector quantization,” Proc. of International Symposium on Consumer Electronics, pp. 55-58, Nov. 1996.

19. C.-Y. Chen, O. T.-C. Chen and H.-C. Chen, “A speech recognition system using noise compensation scheme and learning vector quantization,” Proc. of National Symposium on Telecommunication, pp. 257-261, Dec. 1996.

20. K.-M. Tsou, O. T.-C. Chen, W.-L. Liu and T.-Y. Liu, “Reduced instruction set digital signal processor for speech codec,” Proc. of National Symposium on Telecommunication, pp. 262-269, Dec. 1996.

21. K.-M. Tsou, O. T.-C. Chen and C.-Y. Hu, “A cost-effective fixed/floating-point digital signal processor,” Proc. of International Symposium on VLSI Technology, Systems, and Applications, Taiwan, pp. 213-216, 219, June 1997.

22. K.-T. Wang and O. T.-C. Chen, “A high-performance video format conversion system for MPEG-4,” Proc. of International Symposium on VLSI Technology, Systems, and Applications, Taiwan, pp. 93-97, June 1997.

23. O. T.-C. Chen, S. Wang, C.-W. Lin and Y.-C. Lu, “A medical microsensor for blood glucose monitoring,” Proc. of IEEE International Symposium on Circuits and Systems, Hong Kong, pp. 2761-2764, June 1997.

24. R. Sheen, O. T.-C. Chen and R. Chang, “A 1.3V 1.04GHz-1.3GHz CMOS phase-locked loop,” Proc. of IEEE 40th Midwest Symposium on Circuits and Systems, California, USA, vol. 1, pp. 569-572, Aug. 1997.

25. O. T.-C. Chen and K.-T. Wang, “A high-speed and high-performance video format conversion system,” Proc. of IEEE 40th Midwest Symposium on Circuits and Systems, California, USA, vol. 2, pp. 957-960, Aug. 1997.

26. O. T.-C. Chen, C.-W. Lin and S. Wang, “A multi-function amperometric microsensor for medical applications,” Proc. of IEEE 40th Midwest Symposium on Circuits and Systems, California, USA, vol. 2, pp. 1461- 1464, Aug. 1997.

27. H.-C. Chen, C.-Y. Chen, K.-M. Tsou and O. T.-C. Chen, “A 0.75 Kbps speech codec using recognition and synthesis schemes,” Proc. of IEEE Workshop on Speech Coding, Pennsylvania, USA, pp. 27-28, Sept. 1997.

28. J.-Y. Hwu and O. T.-C. Chen, “A cost-effective and high-performance architecture of speech processor,” Proc. of Workshop on Consumer Electronics: Digital Video and Multimedia, pp. A4-4/18 -A4-4/23, Oct. 1997.

29. R.-B. Sheen, O. T.-C. Chen and S. Wang, “A low-voltage high-speed CMOS fractional-N frequency synthesizer using a phase-locked loop,” Proc. of Workshop on Consumer Electronics: Digital Video and Multimedia, pp. A6-2/7 -A6-2/12, Oct. 1997.

30. O. T.-C. Chen, W.-L. Liu, H.-C. Hsieh and J.-Y. Wang, “A highly-scaleable FIR using the Radix-4 Booth algorithm,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, Seattle, USA, vol. 3, pp. 1765-1768, May 1998.

31. H.-C. Chen and O. T.-C. Chen, “The NLMS algorithm using a quasi-orthonormal initialization scheme for acoustic echo cancellation,” Proc. of IEEE International Symposium on Circuits and Systems, Monterey, USA, vol. 4, pp. 213-216, June 1998.

32. R.-B. Sheen and O. T.-C. Chen, “A 3.3V 600MHz-1.30GHz CMOS phase-locked loop for clock synchronization of optical chip-to-chip interconnects,” Proc. of IEEE International Symposium on Circuits and Systems, Monterey, USA, vol. 4, pp. 429-432, June 1998.

33. K.-T. Wang and O. T.-C. Chen, “Motion estimation using an efficient four-step search method,” Proc. of IEEE International Symposium on Circuits and Systems, Monterey, USA, vol. 4, pp. 217-220, June 1998.

34. W.-L. Liu, O. T.-C. Chen, H.-C. Hsieh and J.-Y. Wang, “A highly-flexible FIR processor with scaleable dynamic data ranges,” Proc. of IEEE International Symposium on Circuits and Systems, Monterey, USA, vol. 5, pp. 417-420, June 1998.

35. S. Wang, R. Sheen, O. T.-C. Chen and K.-C. Tao, “A 1.8V 900MHz CMOS RF receiver,” Proc. of IEEE Asia Pacific Conference on Circuits and Systems, Chiangmai, Thailand, pp. 29-32, Nov. 1998.

36. H.-C. Chen and O. T.-C. Chen, “A subband acoustic echo canceller using the NLMS algorithm with quasi-orthonormal initialization scheme,” Proc. of IEEE Asia Pacific Conference on Circuits and Systems, Chiangmai, Thailand, pp. 331-334, Nov. 1998.

37. C.-T. Chang and O. T.-C. Chen, “An efficient 3D sound using head and pinna models,” Proc. of IEEE Asia Pacific Conference on Circuits and Systems, Chiangmai, Thailand, pp. 427-430, Nov. 1998.

38. W.-L. Liu and O. T.-C. Chen, “A highly-scaleable symmetric/asymmetric FIR processor,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, Phoenix, Arizona, USA, vol. 4, pp. 1917-1920, March, 1999.

39. H.-C. Chen and O. T.-C. Chen, “A predictive updating scheme to improve the NLMS algorithm for acoustic echo cancellation,” Proc. of IEEE International Symposium on Circuits and Systems, Orlando, Florida, USA, vol. III, pp. 552-555, May 1999.

40. R. Sheen, S. Wang, O. T.-C. Chen and R.-L. Ma, “Power consumption of a 2’s complement adder minimized by effective dynamic data ranges,” Proc. of IEEE International Symposium on Circuits and Systems, Orlando, Florida, USA, vol. I, pp. 266-269, May 1999.

41. W. Liu, R. Sheen, J. Hwang and O. T.-C. Chen, “A low-power and high-frequency CMOS transceiver for chip-to-chip interconnection,” Proc. of IEEE International Symposium on Circuits and Systems, Geneva, Switzerland, vol. 3, pp. 1-4, May 2000.

42. L. Chen, W. Liu and O. T.-C. Chen, “Determination of radix numbers of the Booth algorithm for the optimized programmable FIR architecture,” Proc. of IEEE International Symposium on Circuits and Systems, Geneva, Switzerland, vol. 2, pp. 345-348, May 2000.

43. C. Chen and O. T.-C. Chen, “A low-complexity computation scheme of discrete cosine transform and quantization with adaption to block contents,” Proc. of IEEE International Symposium on Circuits and Systems, Geneva, Switzerland, vol. 1, pp. 631-634, May 2000.

44. C.-T. Chan and O. T.-C. Chen, “A 3D sound using the adaptive head model and measured pinna data,” Proc. of IEEE InternationalConferences on Multimedia and Expo, New York, USA, vol. 2, pp. 807-810, July 2000.

45. S. Wang, Y. Wu, O. T.-C. Chen and R. Ma, “Low-power multipliers by minimizing inter-data switching activities,” Proc. of IEEE 43th Midwest Symposium on Circuits and Systems, vol. 1, pp. 88-92, Aug. 2000.

46. R. Sheen and O. T.-C. Chen, “A wide-range phase-locked loop using a range-programmable voltage-controlled oscillator,” Proc. of IEEE 43th Midwest Symposium on Circuits and Systems, vol. 1, pp. 526-529, Aug. 2000.

47. L. Chen and O. T.-C. Chen, “A low-complexity and high-speed Booth-algorithm FIR architecture,” Proc. of IEEE International Symposium on Circuits and Systems, Sydney, Australia, vol. 4, pp. 338-341, May 2001.

48. R. Sheen and O. T.-C. Chen, “A CMOS PLL-based frequency synthesizer for wireless communication systems at 0.9, 1.8, 1.9 and 2.4GHz,” Proc. of IEEE International Symposium on Circuits and Systems, Sydney, Australia, vol. 4, pp. 722-725, May 2001.

49. Y. Wu, O. T.-C. Chen and R. Ma “A low-power digital signal processor core by minimizing inter-data switching activities,” Proc. of IEEE 44th Midwest Symposium on Circuits and Systems, Dayton, Ohio, USA, vol. 1, pp.172-175, Aug. 2001.

50. Z. Chen, N. Shen, O. T.-C. Chen, Y. Hsu, Y. Tsen and D. Perng, “A programmable Reed-Solomon Codec Processor,” Proc. of IEEE 44th Midwest Symposium on Circuits and Systems, Dayton, Ohio, USA, vol. 1, pp. 359-362, Aug. 2001.

51. C. Chan, J. Hwang and O. T.-C. Chen, “A 2.5Gb/s low-power CMOS optoelectronic transceiver for optical communications,” Proc. of IEEE 44th Midwest Symposium on Circuits and Systems, Dayton, Ohio, USA, vol. 1, pp. 381-384, Aug. 2001.

52. Y. Chen, O. T.-C. Chen, H. Chang and J. Chien, “An automatic medical-assistance diagnosis system applicable on X-ray images,” Proc. of IEEE 44th Midwest Symposium on Circuits and Systems, Dayton, Ohio, USA, vol. 2, pp. 910-914, Aug. 2001.

53. C. Chen, O. T.-C. Chen, “A low-complexity computation scheme of discrete cosine transform and quantization for video compression,” Proc. of IEEE InternationalConferences on Multimedia and Expo, Tokyo, Japan, pp. 241-244, Aug. 2001.

54. W. Liu, O. T.-C. Chen, L. Dai, P. Weng, K. Huang and F. Jih, “A CMOS photodiode model,” Proc. of IEEE International Workshop on Behavioral Modeling and Simulation BMAS, Santa Rosa, California, USA, pp. 102-105, Oct. 2001.

55. Y. Chen and O. T.-C. Chen, “Semi-automatic image segmentation using dynamic direction prediction,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, Orlando, Florida, USA, vol. IV, pp. 3369-3372, May 2002.

56. R. Sheen, O. T.-C. Chen and Z. Lee “A high-performance CMOS multiphase voltage-controlled oscillator for communication systems,” Proc. of IEEE International Symposium on Circuits and Systems, Scottsdale, Arizona, USA, vol. IV, pp. 401-404, May 2002.

57. N. Shen and O. T.-C. Chen, “Low-power multipliers by minimizing switching activities of partial products,” Proc. of IEEE International Symposium on Circuits and Systems, Scottsdale, Arizona, USA, vol. IV, pp. 93-96, May 2002.

58. M. Wang, R. Sheen, O. T.-C. Chen and R. Tsen, “A dual-band RF front-end for WCDMA and GPS applications,” Proc. of IEEE International Symposium on Circuits and Systems, Scottsdale, Arizona, USA, vol. IV, pp. 113-116, May 2002.

59. C. Liu and O. T.-C. Chen, “A text-independent speaker identification system using PARCOR and AR model,” Proc. of IEEE 45th Midwest Symposium on Circuits and Systems, vol. 3, pp. 332-335, Tulsa, Oklahoma,USA, Aug. 2002.

60. W. Liu, O. T.-C. Chen, L. Dai, P. Weng, K. Huang and F. Jih, “A color image sensor using adaptive color pixels,” Proc. of IEEE 45th Midwest Symposium on Circuits and Systems, vol. 2, pp. 441-444, Tulsa, Oklahoma,USA, Aug. 2002.

61. L. Chen, W. Liu, O. T.-C. Chen and R. Ma, “A reconfigurable digital signal processor architecture for high-efficiency MPEG-4 video encoding,” Proc. of IEEE International Conferences on Multimedia and Expo, Lausanne, Switzerland, vol. 2, pp. 165-168, Aug. 2002.

62. Y. Chen and O. T.-C. Chen, “Robust fully-automatic segmentation based on modified edge-following technique,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, vol. 3, pp. 333-336, Hong Kong, April 2003.

63. Nan-Ying Shen, Chih-Chien Shen and O. T.-C. Chen, “A low-power multiplication accumulation calculation unit for multimedia applications,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, vol. 2, pp. 645-648, Hong Kong, April 2003.

64. Chih-Chang Chen, O. T.-C. Chen and Horng-Hsinn Wu, “Region of interest determined by picture contents in JPEG 2000,” Proc. of IEEE International Symposium on Circuits and Systems, vol. 2, pp. 868-871, Thailand, May 2003.

65. L. Chen, O. T.-C. Chen and R. Ma, “A high-efficiency reconfigurable digital signal processor for multimedia computing,” Proc. of IEEE International Symposium on Circuits and Systems, vol. 2, pp. 768-771, Thailand, May 2003.

66. Y. Chen and O. T.-C. Chen, “Multiple contour segmentation with automatic thresholding,” Proc. of IEEE International Symposium on Circuits and Systems, vol. 2, pp. 460-463, Thailand, May 2003.

67. W. Liu, O. T.-C. Chen, L. Dai, P. Weng, and F. Jih, “Exploration of the epitaxial layer affecting behaviors of CMOS photodiodes,” Proc. of IEEE International Semiconductor Device Research Symposium, Maryland, USA, pp. 310-311, Dec. 2003.

68. Y. Chung, C. Chen, O. T.-C. Chen and R. Tsen, “A multi-band RF front-end receiver for bluetooth, WCDMA, and GPS applications,” Proc. of IEEE 46th Midwest Symposium on Circuits and Systems, Cairo, Egypt, vol. 3, pp. 1175-1178, Dec. 2003.

69. C. Chen, Y. Chung, O. T.-C. Chen and R. Tsen, “A concurrent L1 and L2-band GPS receiver using an integrated low-IF and Weaver architecture,” Proc. of IEEE 46th Midwest Symposium on Circuits and Systems, Cairo, Egypt, vol. 3, pp. 1163-1166, Dec. 2003.

70. M. Hsia, O. T.-C. Chen, H. Jan, S. Wang and Y. Wu, “Rapid bit-error-rate measurements of infrared communication systems,” Proc. of IEEE International Symposium on Circuits and Systems, Vancouver, Canada, vol. 4, pp. 225-228, May 2004.

71. L. Chen, O. T.-C. Chen, T. Wang and C. Wang, “An adaptive DSP processor for high-efficiency computing MPEG-4 video encoder,” Proc. of IEEE International Symposium on Circuits and Systems, Vancouver, Canada, vol. 2, pp. 157-160, May 2004.

72. C. Chen and O. T.-C. Chen, “Region of interest determined by perceptual-quality and rate-distortion optimization in JPEG 2000,” Proc. of IEEE International Symposium on Circuits and Systems, Vancouver, Canada, vol. 3, pp. 869-872, May 2004.

73. W. Wu and O. T.-C. Chen, “An analysis-by-synthesis echo watermarking method,” Proc. of IEEE International Conferences on Multimedia and Expo, Taiwan, vol. 3, pp. 1935-1938, June 2004.

74. C. Liu and and O. T.-C. Chen, “A fragile speech watermarking scheme with recovering speech contents,” Proc. of IEEE 47th Midwest Symposium on Circuits and Systems, Hiroshima, Japan, vol. 2, pp. 165-168, July 2004.

75. H. Chen, O. T.-C. Chen, H. Yeh and C. Wu, “A Low-Complexity Architecture of Inverse Fast Fourier Transform for XDS,” Proc. of IEEE 47th Midwest Symposium on Circuits and Systems, Hiroshima, Japan, vol. 2, pp. 125-128, July 2004.

76. T. Tsai and O. T.-C. Chen, “A piezoelectric SH-leaky SAW biosensor for antibody detection,” Proc. of IEEE International Conference on Biomedical Circuits and Systems, Singapore, pp. S1.5/9-12, Dec. 2004.

77. Li-Hsun Chen and O. T.-C. Chen, “A hardware-efficient FIR architecture with input-data and tap folding,” Proc. of IEEE International Symposium on Circuits and Systems, Kobe, Japan, vol. 1 pp. 544-547, May 2005.

78. Li-Hsun Chen, O. T.-C. Chen, Teng-Yi Wang and Yung-Cheng Ma,”A multiplication-accumulation computation unit with optimized compressors and minimized switching activities,” Proc. of IEEE International Symposium on Circuits and Systems, Kobe, Japan, vol. 6, pp. 6118-6121, May 2005.

79. Wei-Jean Liu, Hsiu-Fen Yeh and O. T.-C. Chen, “A high dynamic-range CMOS image sensor with locally adjusting charge supply mechanism,” Proc. of IEEE 48th Midwest Symposium on Circuits and Systems, Cincinnati, Ohio, USA, vol. 1, pp. 384-387, Aug. 2005.

80. Chih-Chang Chen, Chia-Hsiung Liu, Yan-Cheng Tsao, Pai-Yu Tien, Yuan-Bin Chen and O. T. -C. Chen, “A multimedia content identification system using audio and visual integrated features,” Proc. of IEEE 48th Midwest Symposium on Circuits and Systems, Cincinnati, Ohio, USA, vol. 2, pp. 1855-1858, Aug. 2005.

81. Li-Hsun Chen and O. T.-C. Chen, “Design methodology of a hardware-efficiency VLIW architecture with highly adaptable data path,” Proc. of IEEE 48th Midwest Symposium on Circuits and Systems, Cincinnati, Ohio, USA, vol. 2, pp. 1223-1226, Aug. 2005.

82. Chih-Chang Chen, Sheng-Shiung Chen, O. T. -C. Chen, Chien-Fa Chen and Fang-Chu Chen “Effective memory reduction scheme used for reference frames in H.264/AVC video codec,” Proc. of IEEE 48th Midwest Symposium on Circuits and Systems, Cincinnati, Ohio, USA, vol. 2, pp. 1549-1552, Aug. 2005.

83. Cheng-Ta Chan and O. T.-C. Chen, “A 10Gb/s CMOS optical receiver using modified regulated cascade scheme,” Proc. of IEEE 48th Midwest Symposium on Circuits and Systems, Cincinnati, Ohio, USA, vol. 1, pp. 171-174, Aug. 2005.

84. Chia-Hsiung Liu and O. T.-C. Chen, “A content-based fragile watermark scheme for speech waveform authentication,” Proc. of IEEE 48th Midwest Symposium on Circuits and Systems, Cincinnati, Ohio, USA, vol. 1, pp. 432-435, Aug. 2005.

85. Chih-Chang Chen, Sheng-Shiung Chen, O. T.-C. Chen, Chien-Fa Chen and Fang-Chu Chen, “Design of limited buffer size for storing multiple reference frames in a video codec,” Proc. of IEEE International Conference on TENCON, Melbourne, Australia, pp. 1-6, Nov. 2005.

86. Meng-Lin Hsia and O. T.-C. Chen, “A multi-band CMOS LC quadrature VCO for GSM/DCS/DECT/WCDMA/Bluetooth systems,” Proc. of IEEE International Symposium on Wireless Pervasive Computing, Phuket, Thailand, pp. 1-4, Jan. 2006.

87. Wen-Chih Wu and O. T.-C. Chen, “Analysis-by-synthesis echo hiding scheme using mirrored kernels,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, Toulouse, France, vol. 2, pp. 325-328, May 2006.

88. Cheng-Ta Chan and O. T.-C. Chen, “Inductor-less 10Gb/s CMOS transimpedance amplifier using source-follower regulated cascade and double three-order active feedback,” Proc. of IEEE International Symposium on Circuits and Systems, Island of Kos, Greece, pp. 5487-5490, May 2006.

89. Heng-Chou Chen and O. T.-C. Chen, “Population fitness probability for effectively terminating the evolution operations of a genetic algorithm,” Proc. of IEEE International Symposium on Circuits and Systems, Island of Kos, Greece, pp. 3766-3769, May 2006.

90. Meng-Lin Hsia, Yu-Sheng Tsai and O. T.-C. Chen, “An UHF passive RFID transponder using a low-power clock generator without passive components,” Proc. of IEEE 49th Midwest Symposium on Circuits and Systems, San Juan, Puerto Rico, USA, vol. 2, pp. 11-15, Aug. 2006.

91. Li-Hsun Chen and O. T.-C. Chen, “A low-power folded programmable FIR architecture,” Proc. of IEEE Workshop on Signal Processing Systems, Banff, Canada, pp. 188-193, Oct. 2006.

92. Chih-Chang Chen and O. T.-C. Chen, “Slice-based memory reduction and management for storing multiple reference frames of H.264 video codec,” Proc. of IEEE International Conference on TENCON, Hong Kong, Nov. pp. 1-4, 2006.

93. Meng-Lin Hsia and O. T.-C. Chen, “Low-complexity encryption using redundant bits and adaptive frequency rates in RFID,” Proc. of IEEE International Symposium on Circuits and Systems, New Orleans, USA, pp. 1601-1604, May 2007.

94. Wen-Chih Wu and O. T.-C. Chen, “Analysis-by-synthesis echo hiding scheme using frequency hopping,” Proc. of IEEE International Conferences on Multimedia and Expo, Peijing, China, pp. 1766-1769, July 2007.

95. Li-Hsun Chen and O. T.-C. Chen, “Low-power and low-complexity architecture for H.264/AVC video decoder,” Proc. of IEEE 50th Midwest Symposium on Circuits and Systems, Montreal, Canada, pp. 1277-1290, 5-8 Aug. 2007.

96. Wen-Chih Wu, Cheng-Hsun Hsieh, Hsin-Chieh Huang, O. T.-C. Chen and Yu-Jen Fang “Hearing aid system with 3D sound localization,” Proc. of IEEE International Conference on TENCON, Taipei, pp. 1-4, Oct. 30 - Nov. 2, 2007.

97. Wen-Chih Wu and O. T.-C. Chen, “Robust echo hiding scheme against pitch-scaling attacks,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, Las Vegas, USA, pp. 1737-1740, Mar. 31 – Apr. 4, 2008.

98. Chia-Hsiung Liu and O. T.-C. Chen, “Data hiding in inter and intra prediction modes of H.264/AVC,” Proc. of IEEE International Symposium on Circuits and Systems, Seattle, USA, pp. 3025-3028, May 18-21, 2008.

99. Meng-Lin Hsia and O. T.-C. Chen, “Passive RFID transponder with power-aware encryption,” Proc. of IEEE 51st Midwest Symposium on Circuits and Systems, Knoxville, TN, USA, pp. 838-841, Aug. 10-13, 2008.

100. Meng-Lin Hsia and O. T.-C. Chen, “Low-power multiplier optimized by partial-product summation and adder cells,” Proc. of IEEE International Symposium on Circuits and Systems, Taipei, Taiwan, pp. 3042-3045, May 24-27, 2009.

101. Yi-Jung Wang, Chih Chi Chang, Guo Zua Wu and O. T.-C. Chen, “Low-complexity integrated architecture of 4×4, 4×8, 8×4 and 8×8 inverse integer transforms of VC-1,” Proc. of IEEE 52nd Midwest Symposium on Circuits and Systems, Cancun, Mexico, pp. 543-546, Aug. 2-5, 2009.

102. Wen-Chih Wu and O. T.–C. Chen, “Multiple-sound-source localization scheme based on feedback-architecture source separation,” Proc. of IEEE 52nd Midwest Symposium on Circuits and Systems, Cancun, Mexico, pp. 669-672, Aug. 2-5, 2009.

103. Meng-Lin Hsia and O. T.-C. Chen, “Low-complexity computation of IDCT efficiently adapted to end-of-block points,” Proc. of The Eleventh IASTED International Conference on Signal and Image Processing, Honolulu, Hawaii, pp. 236-240, Aug. 17-19, 2009.

104. Meng-Lin Hsia, Chih-Feng Tseng, Meng-Hsuan Chan and O. T.-C. Chen, “Low-complexity frame-size down-scaling integrated with IDCT,” Proc. of IEEE Workshop on Signal Processing Systems, Tampere, Finland, pp. 46-50, Oct. 7-9, 2009.

105. Chien Hung Chen, Ping Tsung Lu and O. T.-C. Chen, “Classification of four affective modes in online songs and speeches,” Proc. of the 19th Annual Wireless and Optical Communications Conference, Shanghai, China, pp. 1-4, May 14-15, 2010.

106. Chieh Ning Chan and O. T.-C. Chen, “Physical effects of avalanche CMOS photodiodes,” Proc. of 15th OptoElectronics and Communications Conference, Sapporo, Japan, pp. 824-825, July 5-9, 2010.

107. Chih-Yu Tsai and O. T.-C. Chen, “CPW-fed wideband printed planar dipole antenna for digital TV,” Proc. of IEEE International Symposium on Antennas and Propagation, Toronto, Canada, pp. 1-4, July 11-17, 2010.

108. Meng-Lin Hsia and O. T.-C. Chen, “Low-complexity inverse integer transform in H.264/AVC,” Proc. of IEEE International Conference on Multimedia & Expo, Singapore, pp. 826-830, July 19-23, 2010.

109. Chih-Chang Chen, Meng-Hsuan Chan and O. T.-C. Chen, “Size-controllable memory reduction scheme of storing reference frames at H.264/AVC under I, P and B,” Proc. of IEEE International Conference on Multimedia & Expo, Singapore, pp. 802-807, July 19-23, 2010.

110. Zhe Ming Liu, Ming-Chih Lin, Chieh Ning Chan and O. T.-C. Chen, “2D and 3D-integrated image sensor,” Proc. of IEEE 53rd Midwest Symposium on Circuits and Systems, Seattle, USA, pp. 292-295, Aug. 1-4, 2010.

111. Chih-Chang Chen, Chien-Hung Chen, Ping-Tsung Lu and O. T.-C. Chen, “Affective understanding of online songs and speeches,” Proc. of IEEE 53rd Midwest Symposium on Circuits and Systems, Seattle, USA, pp. 363-366, Aug. 1-4, 2010.

112. Yi-Hsiang Cheng, Chun-Hung Chiu, O. T.-C. Chen and Wen-Chih Wu, “Pre-processing scheme to effectively compensate environment and equipment factors for sound source separation,” Proc. of IEEE International Conference on TENCON, Fukuoka, Japan, pp. 2072-2076, Nov. 22-24, 2010.

113. Chih-Chang Chen, Hsing-Hao Lin and O. T.-C. Chen, “Tracking and counting people in visual surveillance systems,” Proc. of IEEE International Conf. on Acoustic, Speech & Signal Processing, Prague, Czech, pp. 1425-1428, May 22-27, 2011.

114. Chih-Yu Tsai and O. T.-C. Chen, “Controllable antenna with a radiation-pattern diversity reflector for DTV applications,” Proc. of IEEE International Symposium on Antennas and Propagation, Spokane, Washington, USA, pp. 2191- 2194, July 3-8, 2011.

115. Meng-Yu Chung, Chih-Chang Chen, Meng-Lin Hsia and O. T.-C. Chen, “Acoustic field enhancement for a stereo headphone,” Proc. of IEEE 54th Midwest Symposium on Circuits and Systems, Seoul, South Korea, Aug. 7-10, 2011.

116. Chih-Chang Chen, Ping-Tsung Lu, Meng-Lin Hsia, Jia-You Ke and O. T.-C. Chen, “Gender-to-age hierarchical recognition for speech,” Proc. of IEEE 54th Midwest Symposium on Circuits and Systems, Seoul, Korea, Aug. 7-10, 2011.

117. Meng-Lin Hsia, Zhe Ming Liu, Chieh Ning Chan and O. T.-C. Chen, “Crosstalk effects of avalanche CMOS photodiodes,” Proc. of IEEE Conference on Sensors, Limerick, Ireland, pp. 1689-1692, Oct. 28-31, 2011.

118. O. T.-C. Chen, Kuan-Hsien Lin, Zhe Ming Liu, Shu Chun Wang, and Meng-Lin Hsia, “2D and 3D integrated image sensor with a bus-sharing mechanism,” Proc. of IEEE 55th Midwest Symposium on Circuits and Systems, Boise, Idaho, USA, Aug. 5-8, 2012.

119. O. T.-C. Chen, Jhen Jhan Gu, Ping-Tsung Lu, and Jia-You Ke, “Emotion-inspired age and gender recognition systems,” Proc. of IEEE 55th Midwest Symposium on Circuits and Systems, Boise, Idaho, USA, Aug. 5-8, 2012.

120. Meng-Lin Hsia, O. T.-C. Chen, Jia-You Ke, and Kuan-Hsien Lin, “Quality-preserved and low-complexity frequency-domain down-sizing method in a video decoder,” Proc. of IEEE 55th Midwest Symposium on Circuits and Systems, Boise, Idaho, USA, Aug. 5-8, 2012.

121. Chih-Yu Tsai, and O. T.-C. Chen, “Broadband microstrip-line-fed monopole antenna,” Proc. of IEEE Asia-Pacific Conference on Antennas and Propagation, Singapore, Aug. 27-29, 2012.

122. Chih-Yu Tsai, and O. T.-C. Chen, “CPW-fed compact broadband monopole slot antenna for digital TV applications,” Proc. of IEEE Asia-Pacific Conference on Antennas and Propagation, Singapore, Aug. 27-29, 2012.

123. O. T.-C. Chen, Jhen Jhan Gu, Chih-Chang Chen, and Ping-Tsung Lu “Affective perception of musical television,” Proc. of The 4th International Conference on Awareness Science and Technology, Seoul, South Korea, Aug. 21-24, 2012.

124. O. T.-C. Chen, Kuan-Hsien Lin, and Zhe Ming Liu, “High-efficiency 3D CMOS image sensor,” Proc. of 18th OptoElectronics and Communications Conference, Kyoto, Japan, , June 30 - July 4, 2013.

125. Chih-Yu Tsai, and O. T.-C. Chen, “CPW-fed printed dipole antenna for VHF and UHF,” Proc. of IEEE Asia-Pacific Conference on Antennas and Propagation, Chiang Mai, Thailand, Aug. 5-7, 2013.

126. Yu-Lung Chang, Li-You Hsu, and O. T.-C. Chen, “Auto-calibration around-view monitoring system,” Proc. of IEEE 78th Vehicular Technology Conference, Las Vegas, USA, Sep. 2-5, 2013.

127. O. T.-C. Chen, Guan Ting Liu, Jhen Jhan Gu, and Jen-Yi Pan, “Emotion-grading online KTV system,” Proc. of IEEE International Conference on Consumer Electronics, Las Vegas, USA, pp. 384-385, Jan. 10-13, 2014.

128. Cheng-Ta Chan, and O. T.-C. Chen, “Inductor-less bandwidth-extension technique applied to CMOS differential trans-impedance amplifier,” Proc. of IEEE International Symposium on Circuits and Systems, Melbourne, Australia, pp. 1897-1900, June 1-5, 2014.

129. O. T.-C. Chen, and Chih-Jung Kuo, “Self-adaptive fall-detection apparatus embedded in glasses,” Proc. of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Chicago, Illinois, USA, pp. 4623-4626, August 26-30, 2014.

130. Guo-Zua Wu, Song-Nien Tang, Chih-Chi Chang, Chien-Ju Lee, Kuan-Hsien Lin, and O. T.-C. Chen, “High-frequency and power-efficiency ultrasound beam-forming processor for handheld applications,” Proc. of the 27th IEEE International System-on-Chip Conference, Las Vegas, USA, pp. 420-424, Sept. 2-5, 2014.

131. O. T.-C. Chen, and Jhen Jhan Gu, “Improved gender/age recognition system using arousal-selection and feature-selection schemes,” Proc. of IEEE International Conf. on Digital Signal Processing, Singapore, pp. 148-152, July 21st-24th, 2015.

132. Yu-Ling Hsueh, Nien-Hung Lin, Chia-Che Chang, O. T.-C. Chen, and Wen-Nung Lie, “Abnormal event detection using Bayesian networks at a smart home,” Proc. of The 8th International Conference on Ubi-Media Computing, Colombo, Sri Lanka, pp. 273-277, August 24-26, 2015.

133. O. T.-C. Chen, Yi-Heng Tsai, Che-Wei Su, Po-Chen Kuo, and Pin-Chih Chen, “Voice-activity recognition system for home care,” Proc. of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Milan, Italy, August 25th -29th, 2015. (Late breaking research poster paper)

134. O. T.-C. Chen, Y. H. Tsai, C. W. Su, P. C. Kuo, and W. C. Lai, “Voice-activity home care system,” Proc. of IEEE International Conference on Biomedical and Health Informatics, Las Vegas, USA, pp. 110-113, Feb. 24th-27th, 2016.

135. Kuan-Yi Lu, O. T.-C. Chen, and Chin Hsia, “Design of over-current protection circuit for power transistors,” Proc. of IEEE International Conference on Consumer Electronics, Nantou, Taiwan, pp. 1-2, May 27-29, 2016.

136. Cheng-Ta Chan, and O. T.-C. Chen, “40Gb/s optical receiver using high-gain multi-level active feedback with serial inductor peaking,” Proc. of 21st OptoElectronics and Communications Conference, Niigata, Japan, pp. 1-3, July 3rd – 7th, 2016.

137. Yu-Lung Chang, Yen-Cheng Feng, and O. T.-C. Chen, “Real-time physiological and facial monitoring for safe driving,” Proc. of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Orlando, USA, pp. 4849 – 4852, Aug. 16th-20th, 2016.

138. O. T.-C. Chen, and C. H. Tsai, “Home activity log and life care using panoramic videos,” Proc. of ISG 10th World Conference of Gerontechnology, Nice, France, pp. 9s, Sept. 28th-30th, 2016.

139. O. T.-C. Chen, Pin-Chih Chen, and Yi-Ting Tsai, “Attention estimation system via smart glasses,” in Proc. of IEEE Conference on Computational Intelligence in Bioinformatics and Computational Biology, Manchester, UK, pp. 1-5, Aug. 23rd 25th, 2017.

140. O. T.-C. Chen, Ching-Han Tsai, Hung Ha Manh, and Wei-Chih Lai, “Activity recognition using a panoramic camera for homecare,” in Proc. of 14th IEEE International Conference on Advanced Video and Signal based Surveillance, Lecce, Italy, pp. 1-6, Aug. 29th Sept. 1st, 2017.

141. Y.-T. Tsai, S.-J. Yu, X.-Y. Chen, O. T.-C. Chen, J. C.-Y. Sun, and C.-C. Huang, “Personalized mobile learning system via smart glasses,” in Proc. of the 3rd EAI International Conference on IoT as a Service, Taichung, Taiwan, Sept. 20th-23rd, 2017.

142. O. T.-C. Chen, Hung Ha Manh, and Wei-Chih Lai, “Activity recognition of multiple subjects for homecare,” in Proc. of the 10th International Conference on Knowledge and Smart Technology, Chiang Mai, Thailand, Jan. 31st- Feb. 3rd, 2018.

143. O. T.-C. Chen, S.-N. Yu, C.-C. Huang, H.-C. Lee, Y.-L. Hsueh, and J. C.-Y. Sun, “Mobile learning system with context-aware interactions and point-of-interest understanding,” in Proc. of IEEE International Conferences on Multimedia and Expo, San Diego, USA, pp. 1-4, July 23rd-27th, 2018.

144. Yu-Lung Chang, O. T.-C. Chen, Jung-Pin Li, and Pei-I Kuo, “Low-complexity image-based safety-driving assistant system for an embedded platform,” in Proc. of the 9th IEEE International Conference on Cognitive InfoCommunications, Budapest, Hungary, Aug. 22nd-24th, 2018.

145. Chao-Yi Huang, O. T.-C. Chen, Guo-Zua Wu, Chih-Chi Chang, and Chang-Lin Hu, “Ultrasound imaging improved by the context encoder reconstruction generative adversarial network,” in Proc. of IEEE International Ultrasonics Symposium, Kobe, Japan, Oct. 22nd-25th, 2018.

146. Oscal T.-C. Chen, Guo-Zua Wu, Yu-Zhi Ma, and Chih-Chi Chang, “Highly-integrated low-complexity beamformer with self-adaptive synchronization,” in Proc. of IEEE International Symposium on Circuits and Systems, Sapporo, Japan, May 26th 29th, 2019. (Late breaking news papers)

147. Oscal T.-C. Chen, Yu Cheng Zhang, Zheng Kuan Lin, Pei-I Kuo, and Yi Lun Lee, “Camera-in-hand robotic arm using a deep neural network to realize unmanned store service,” in Proc. of the 17th IEEE International Conference on Pervasive Intelligence and Computing, Fukuoka, Japan, Aug. 5th-8th, 2019

148. Oscal T.-C. Chen, Syu-Yang Chang, Yu-Zhi Ma, Yu Cheng Zhang, and Yi Lun Lee, “Time capsule gift with affective awareness of event memories via near field communication,” in Proc. of IEEE/SICE International Symposium on System Integration, Honolulu, Hawaii, USA, January 12th15th, 2020.

149. Oscal T.-C. Chen, Manh-Hung Ha, and Yi Lun Lee, “Computation-affordable recognition system for activity identification using a smart phone at home,” in Proc. of IEEE International Conference on Circuits and Systems, Seville, Spain, May 17th -20th, 2020. (virtual conference on Oct. 10th-21st, 2020)

150. Oscal T.-C. Chen, Yu Cheng Zhang, Yu-Xuan Chang, and Yu-Lung Chang, “Iterative multiple-path one-shot NAS for the optimized performance,” in Proc. of IEEE International Conference on Circuits and Systems, Daegu, South Korea, May 22nd-28th, 2021.

151. Manh-Hung Ha, and Oscal T.-C. Chen, “Action recognition enhanced by correlations and attention of subjects and scene,” in Proc. of IEEE International Conference on Visual Communications and Image Processing (VCIP), Munich, Germany, Dec. 5th-8th, 2021.

152. Oscal T.-C. Chen, Han-Wen Liu, Yu-Lung Chang, and Yu-Wei Jhao, “Pedestrian intent prediction by dense graph transformer,” in Proc. of IEEE International Conference on Consumer Electronics Taiwan, Taipei, Taiwan, July 6th-8th, 2022.

153. Manh-Hung Ha, and Oscal T.-C. Chen, “Non-local spatiotemporal correlation attention for action recognition,” in Proc. of IEEE International Conferences on Multimedia and Expo, Taipei, Taiwan, July 18th-22nd, 2022.

154. Oscal T.-C. Chen, Yen-Cheng Lu, and Yu-Xuan Chang, “Lightweight model by iterative momentum pruning scheme for channel reduction,” in Proc. of the 20th IEEE International Conference on Pervasive Intelligence and Computing, Calabria, Italy, Sep. 12th-15th, 2022.

155. Oscal T.-C. Chen, Yu-Xuan Chang, Yu-Wei Jhao, Chih-Yu Chung, Yun-Ling Chang, and Wei-Hsiang Huang, “3D object detection of cars and pedestrians by deep neural networks from unit-sharing one-shot NAS,” in Proc. of the 19th IEEE International Conference on Advanced Video and Signal based Surveillance, Madrid, Spain, Nov. 29th - Dec. 2nd, 2022.

156. Manh-Hung Ha, and Oscal T.-C. Chen, “Rectified attention gate unit in recurrent neural networks for effective attention computation,” in Proc. of IEEE Statistical Signal Processing Workshop, Hanoi, Vietnam, July 2nd-5th, 2023.

157. Oscal T.-C. Chen, and Li-Cheng Yan, “Deep neural network for user attribute recognition in metaverse hand images,” in Proc. of IEEE International Conference on Computer, Information, and Telecommunication Systems, Genoa, Italy, July 10th-12th, 2023.

158. Oscal T.-C. Chen, Wen-Chao Huang, and Chun-Hsiang Chang, “Mental Illness Prediction by Refined-Attention Transformer Encoder with Mental RoBERTa,” in Proc. of IEEE International Conference on Consumer Electronics – Taiwan, Pingtung, Taiwan, July 17th-19th, 2023.

159. M. Ha, D. Luyen, Oscal T.-C. Chen, T. Doan, N. Tinh, “NDAU: Non-local dual attention-gated Unet for brain tumor segmentation,” in Proc. of IEEE International Conference on System Science and Engineering, Ho Chi Minh City, Vietnam, July 27th-28th, 2023.

E. Technical reports

1. H. Chen and O. T.-C. Chen, “Models and cancellation of car noises and echoes,” Computer & Communication Research Laboratories Technical Journal, pp. 56-63, May 1999.

2. S. Lee and O. T.-C. Chen, “Characteristics and development of interactive TV,” Computer & Communication Research Laboratories Technical Journal, pp. 80-87, Dec. 2001.

3. T. Wang, H. Yeh and O. T.-C. Chen, “An efficient filter design for multiband DMT VDSL transceivers,” Computer & Communication Research Laboratories Technical Journal, pp. 48-64, Sept. 2003.

4. 陳自強, 陳麒凱, 林恭義, 何季謙, 吳姮瑱, “Chapter 5 Android 系統平臺移植及其應用程式開發,” Intel® Atom ™ 平臺之嵌入式系統開發與應用實例 (Intel® Atom ™Platform: Intelligent Systems Development and Applications), pp.145-180, edited book: Library & Book, Taipei, 2014.