Publication

A. Journal Papers

• *Chih-Ta Yen, Jung-Ren Wong, Chia-Hsang Chang, “Photoplethysmography signals and physiological data in feature engineering and machine learning algorithms to calculate human-obesity-related indices,” Computers, Materials & Continua, Accepted, 2025.

• *Chih-Ta Yen, Chia-Hsang Chang, Jung-Ren Wong, “Photoplethysmography signals and physiological data in feature engineering and machine learning algorithms to calculate human-obesity-related indices,” Internet of Things, vol. 30, pp. 101503, 2025, ISSN 2542-6605, https://doi.org/10.1016/j.iot.2025.101503.

• *Chih-Ta Yen and Chia-Yu Tsao, "Lightweight convolutional neural network for chest X-ray images classification," Sci Rep 14, 29759 (2024). https://doi.org/10.1038/s41598-024-80826-z.

• *Chih-Ta Yen and Tzu-Yen Wu, "Design of a Deep Learning-Based Underwater Acoustic Sensor Transceiver," in IEEE Sensors Journal, vol. 24, no. 6, pp. 8694-8711, 15 March15, 2024, doi: 10.1109/JSEN.2024.3357512.

• *Chih-Ta Yen and Guo-Chang WangR, “Realize FSK-Based Underwater Acoustic Sonar Sensor Communication System with Robust Data Processing Technology,” Sensors and Materials, vol. 36, no. 2, pp. 701-728, Feb. 2024.

• *Chih-Ta Yen, and Jia-Xian Liao, and Yi-Kai Huang, “Evaluating Feature Fusion Techniques with Deep Learning Models for COVID-19 Chest X-ray Sensor Images Identification,” Sensors and Materials, vol. 36, no. 2, pp. 689-699, Feb. 2024.

• *Chih-Ta Yen, Tz-Yun Chen, Un-Hung Chen, Guo-Chang Wang and Zong-Xian Chen, " Feature Fusion-Based Deep Learning Network to Recognize Table Tennis Actions," Computers, Materials & Continua, vol. 74, no.1, pp. 83–99, 2023.

• *Chih-Ta Yen and Kang-Hua Li, "Discussions of Different Deep Transfer Learning Models for Emotion Recognitions," in IEEE Access, vol. 10, pp. 102860-102875, 2022, doi: 10.1109/ACCESS.2022.3209813.

• Cheng-Mu Tsai, Pin Han, Hsin-Hung Lee and *Chih-Ta Yen, “Lens Design Method Prediction of Local Optimization Algorithm by Using Deep Learning,” Crystals, vol. 12, no. 9, p. 1206, Aug. 2022, doi: 10.3390/cryst12091206.

• *Chih-Ta Yen, Sheng-Nan Chang, and Cheng-Hong Liao, "Estimation of Beat-by-Beat Blood Pressure and Heart Rate From ECG and PPG Using a Fine-Tuned Deep CNN Model," in IEEE Access, vol. 10, pp. 85459-85469, 2022, doi: 10.1109/ACCESS.2022.3195857.

• *Chih-Ta Yen, Un-Hung Chen, Guo-Chang Wang, and Zong-Xian Chen, “Non-Invasive Blood Glucose Estimation System Based on a Neural Network with Dual-Wavelength Photoplethysmography and Bioelectrical Impedance Measuring,” Sensors, vol. 22, no. 12, p. 4452, Jun. 2022, doi: 10.3390/s22124452.

• *Chih-Ta Yen and Cheng-Hong Liao, " Blood Pressure and Heart Rate Measurements Using Photoplethysmography with Modified LRCN," Computers, Materials & Continua, vol. 71, no.1, pp. 1973–1986, 2022.

• *Chih-Ta Yen, and Guan-Yu Chen, “A Deep Learning-Based Person Search System for Real-World Camera Images” Journal of Internet Technology, vol. 23, no. 4, pp. 39-52, July 2022.

• *Chih-Ta Yen, and Shih-Cyuan Jin, “Freeform Surface Lens Design Using Genetic Algorithm with Acrylic Material for Reducing Aberrations in Multifocal Artificial Intraocular Lens to Enhance Image Sensing Quality” Sensors and Materials, vol. 34, no. 1, pp. 187-201, 2022.

• *Chih-Ta Yen, Sheng-Nan Chang, Jia-Xian Liao and Yi-Kai Huang, “A deep learning-based continuous blood pressure measurement by dual photoplethysmography signals,” Computers, Materials & Continua, vol. 70, no.2, pp. 2937–2952, 2022.

• *Chih-Ta Yen, Jia-Xian Liao, and Yi-Kai Huang, "Applying a Deep Learning Network in Continuous Physiological Parameter Estimation Based on Photoplethysmography Sensor Signals," in IEEE Sensors Journal, vol. 22, no. 1, pp. 385-392, 1 Jan.1, 2022, doi: 10.1109/JSEN.2021.3126744.

•  *Chih-Ta Yen and Jia-De Lin, “Human body activity recognition using wearable inertial sensors integrated with a feature extraction–based machine-learning classification algorithm,” Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2022;236(14):1820-1827. doi:10.1177/0954405420937894 

• *Chih-Ta Yen and Chuan-Yuan Hong, “Integrating optical design with Taguchi method in a remote wireless light charging system,” Microsyst Technol 28, 353–368 (2022).

• *Chih-Ta Yen and Jia-Ming Zhang, “The vehicle zoom ultra wide angle lens design by using liquid lens technology,”  Microsyst Technol 28, 195–208 (2022). https://doi.org/10.1007/s00542-019-04572-3

• *Chih-Ta Yen and Ping-Chi Chuang, “Application of a neural network integrated with the internet of things sensing technology for 3D printer fault diagnosis,” Microsyst Technol 28, 13–23 (2022). https://doi.org/10.1007/s00542-019-04323-4

• *Chih-Ta Yen, Jia-Xian Liao, and Yi-Kai Huang, “Feature Fusion of a Deep-Learning Algorithm into Wearable Sensor Devices for Human Activity Recognition” Sensors, vol. 21, no. 24, p. 8294, Dec. 2021, doi: 10.3390/s21248294.

• *Chih-Ta Yen and Hsin-Han Tsai, "Applying Neural Network Algorithm of MIMO Log-normal Channel for OFDM/OCDMA System," 2021 IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW), 2021, pp. 1-2, doi: 10.1109/ICCE-TW52618.2021.9602885. (EI)

• Cheng-Mu Tsai, Jun-You Li, * Pin Han and *Chih-Ta Yen, "Design and Evaluation of Optical See-Through Head-Mounted Display With Wide FOV Based on Dihedral Corner Reflector Array," in IEEE Access, vol. 9, pp. 118977-118984, 2021, doi: 10.1109/ACCESS.2021.3107476.

• *Chih-Ta Yen, Sheng-Nan Chang and Cheng-Yang Cai, “Development of a Continuous Blood Pressure Measurement and Cardiovascular Multi-Indicator Platform for Asian Populations by Using a Back Propagation Neural Network and Dual Photoplethysmography Sensor Signal Acquisition Technology,” Journal of Nanomaterials, vol. 2021, May 29, 2021.

• *Chih-Ta Yen, Sheng-Nan Chang and Cheng-Hong Liao, “Deep learning algorithm evaluation of hypertension classification in less photoplethysmography signals conditions,”  Measurement and Control. 2021; 54(3-4): 439-445. doi:10.1177/00202940211001904

• *Chih-Ta Yen, Jia-Xian Liao and Yi-Kai Huang, “Human Daily Activity Recognition Performed Using Wearable Inertial Sensors Combined with Deep Learning Algorithms,” IEEE Access, vol.8, pp. 174105-174114, Sept. 22, 2020.

• *Chih-Ta Yen and Cheng-Hao Ke, “Improving Tracking Error by Dead Reckoning and RSSI Technologies with a Fuzzy Fusion Scheme in Indoor Location,” Microsyst Technol 24, 4025–4033 (2018). https://doi.org/10.1007/s00542-017-3614-3

• *Chih-Ta Yen, Jen-Fa Huang and Wen-Zong Zhang, “Hiding Stealth Optical CDMA Signals in Public BPSK Channels for Optical Wireless Communication,” Applied Sciences, vol.8, no. 10, pp. 1731, Sept. 2018. SWITZERLAND (SCI, IF:1.689, Rank: 77/146, Q3, 2017)

• *Chih-Ta Yen, Zong-Wei Lai, Yu-Ting Lin and Hsu-Chih Cheng, “Optical Design with Narrow-Band Imaging for a Capsule Endoscope,” Journal of Healthcare Engineering, vol. 2018, Article ID 5830759, 11 pages, 10 January 2018.

• *Chih-Ta Yen and Ming-Feng Cheng, “A Study of Fuzzy Control with Ant Colony Algorithm used in Mobile Robot for Shortest Path Planning and Obstacle Avoidance,” Microsystem Technologies, Volume 24, Issue 1, pp 125–135, January 2018.

• *Chih-Ta Yen, Jen-Fa Huang and Ying-Wei Tu, “Crosstalk Suppression by Threshold Adjustment of Codecs in Optical CDMA Network,” IEEE International Conference on Applied System Innovation 2017 (IEEE ICASI 2017), 24 July, 2017.

• *Chih-Ta Yen and Guan-Jie Huang, “Using optical code-division multiple-access techniques in Michelson interferometer vibration sensor networks,” Journal of Vibroengineering, vol. 19, no. 1, pp. 343–354, Feb. 2017, doi: 10.21595/jve.2016.17893. 

• *Chih-Ta Yen and Wen-Bin Chen, “A Study of Dispersion Compensation of Polarization Multiplexing-Based OFDM-OCDMA for Radio-over-Fiber Transmissions,” Sensors, vol. 16, no. 9, pp. 1-16, September 7, 2016.

• *Chih-Ta Yen and Guan-Jie Huang, “Optical Steganography Transmission of Optical CDMA Signals Over a Public BPSK Channel,” Engineering Computations, vol. 33, issue: 6, pp.1810-1824, August 2016.

• *Chih-Ta Yen and Yi-Jie Huang, “Frequency domain digital watermark recognition using image code sequences with a back-propagation neural network,” Multimedia Tools and Applications, Volume 75, Issue 16, pp 9745–9755, August 2016. DOI 10.1007/s11042-015-2718-y.

• *Chih-Ta Yen and Chih-Ming Chen, “A study of three-dimensional optical code-division multiple-access for optical fiber sensor networks,” Computers and Electrical Engineering, vol. 49, pp. 136–145, January 2016.

• *Chih-Ta Yen and Jhe-Wen Ye, “Aspherical Lens Design Using Hybrid Neural-Genetic Algorithm of Contact Lenses,” Applied Optics, vol. 54, no. 28, pp. E88-E93, Oct. 2015.

• *Chih-Ta Yen and Jhe-Wen Ye, “Optical design of contact lenses using principal component analysis method with Taguchi method,” Applied Mathematical Modelling, vol. 39, no. 19, pp. 5778-5782, Oct. 2015.

• Yi-Chin Fang, *Chih-Ta Yen and Chin-Hsien Chu, “Study of Optical Design of Three-Dimensional Digital Ophthalmoscopes,” Applied Optics, vol. 54, issue 28, pp. E224-E234, Oct. 2015.

• *Chih-Ta Yen and Jyun-Min Shih, “A Study of Optical Design on 9x Zoom Ratio by Using a Compensating Liquid Lens,” Applied Sciences, vol.5, no. 3, pp. 608-621, Sept. 2015. 

• *Chih-Ta Yen and Shih-Cyuan Jin, “Aspherical Lens Design Using Genetic Algorithm for Reducing Aberrations in Multifocal Artificial Intraocular Lens,” Materials, vol. 8, no. 9, pp. 6309-6325, Sept. 2015.

• Ing-Jr Ding and *Chih-Ta Yen, “Enhancing GMM speaker identification by incorporating SVM speaker verification for intelligent web-based speech applications,” Multimedia Tools and Applications, vol. 74, no. 14, pp. 5131-5140, July 2015.

• *Chih-Ta Yen, and Chih-Ming Chen, “BER Analysis Using Beat Probability Method of 3-D Optical CDMA Networks with Double Balanced Detection,” Mathematical Problems in Engineering, vol. 2015, no. 2015, Article ID 456829, 6 pages, Jan. 2015.

•  Yi-Chin Fang, *Chih-Ta Yen, and Jui-Hsin Hsu, “Study of Optical Design of Blu-Ray Pickup Head System with a Liquid Crystal Element,” Applied Optics, vol. 53, no. 29, pp. H153-H159, 10 Oct. 2014.

• Chih-Ta Yen, Hsu-Chih Cheng, and *Ing-Jr Ding, “Hybrid Analog/Digital Wavelength-Time Optical CDMA Systems in Radio-over-Fiber Transmissions,” The Journal of Supercomputing, vol. 69, no. 3, pp. 1139-1153, Sept. 2014.

• Ing-Jr Ding, *Chih-Ta Yen, and Che-Wei Chang, “Optical music recognition of the singer using formant frequency estimation of vocal fold vibration and lip motion with interpolated GMM classifiers,” Journal of Vibroengineering, vol. 16, no. 5, pp. 2572‑2581, August, 2014.

• *Chih-Ta Yen, Jen-Fa Huang, and Ping-En Chih, “Constructing a two bands optical code-division multiple-access network of bipolar optical access codecs using Walsh-coded liquid crystal modulators,” Japanese Journal of Applied Physics, vol. 53, no. 8S2, pp.  08MB07-1~08MB07-7, July 2014.

• Hsu-Chih Cgeng, *Chih-Ta Yen, and Yong-Jing Xiao, “Measurement of Arbitrary Strain Profiles of Fiber Bragg Gratings in Fabry-Perot-like Transmission Spectra Using a Real-Coded Genetic Algorithm,” Sensors and Materials, vol. 26, no. 5, pp. 299-306, June 2014.

• Chih-Ta Yen, Jen-Fa Huang, Ming-Jia Wu, Yu-Fan Lee, Chia-Tsai Huang, Shu-Fan Huang,d and *Hsu-Chih Cheng, “Simultaneously measuring the refractive index and thickness of an optical sample by using improved fiber-based optical coherence tomography,” Optical Engineering, vol. 53, no. 4, pp. 044108-1~044108-6, April 2014.

• Shin-Pin Tseng, Chih-Ta Yen, Rong-Shun Syu, and *Hsu-Chih Cheng, “Employing optical code division multiple access technology in the all fiber loop vibration sensor system,” Optical Fiber Technology, vol. 19, issue 6, pp. 627-637, December, 2013.

• Chih-Ta Yen, Hsu-Chih Cheng, *Ing-Jr Ding, and Jhe-Wen Ye, “Optical Design and Taguchi Optimization of Third-Order Aberrations for Contact Lenses,” Microsystem Technologies-Micro and Nanosystems-Information Storage and Processing, vol. 19, no. 11, pp. 1791-1794, Nov. 2013.

• Chih-Ta Yen, *Ing-Jr Ding , Zong-Wei Lai, “A Study of Digital Watermarking Recognition using Orthogonal Code Sequences with a Back-propagation Neural Network,” Transactions of the Canadian Society for Mechanical Engineering, vol. 37, no. 3, pp. 459-465, Nov. 2013.

• Chih-Ta Yen, *Ing-Jr Ding, Cheng-Mu Tsai, “Performance Analysis of Several Quasi-Orthogonal Codes Optical CDMA for Radio-over-Fiber System,” Transactions of the Canadian Society for Mechanical Engineering, vol. 37, no. 3, pp. 415-426, Nov. 2013.

• Ing-Jr Ding, and *Chih-Ta Yen, “Improving Eigenspace-Based Fuzzy Logic System Using a Linear Interpolation Scheme For Speech Pattern Recognition,” Transactions of the Canadian Society for Mechanical Engineering, vol. 37, no. 3, pp. 611-620, Nov. 2013.

• Ing-Jr Ding, *Chih-Ta Yen and Zih-Jheng Liu, “Fuzzy Logic-Based Intelligent Control For SVM Speaker Verification With The Support of GMM Prior Information,” Transactions of the Canadian Society for Mechanical Engineering, vol. 37, no. 3, pp. 467-476, Nov. 2013.

• Ing-Jr Ding, *Chih-Ta Yen, and Da-Cheng Ou, “A Method to Integrate GMM, SVM and DTW for Speaker Recognition,” International Journal of Engineering and Technology Innovation, vol. 4, no.1, pp. 38-47, 2013.

• Ing-Jr Ding, *Chih-Ta Yen & Yen-Ming Hsu, “Development of Machine Learning Schemes for Dynamic Time-wrapping-based Speech Recognition,” Mathematical Problems in Engineering, vol. 2013, no. 2013, pp. 1-10, 22 October 2013.

• Hsu-Chih Cheng, *Chih-Ta Yen and Ing-Jr Ding, “Performance Enhancement of Optical CDMA by Differential-Phase Method for Radio-over-Fiber Transmissions,” Mathematical Problems in Engineering, vol. 2013, no. 2013, pp.1-6, 7 October 2013.

• Chih-Ta Yen, Chen-Mu Tsai, and *Yi-Chin Fang, “A Study of Optical Design of Aspheric Optical Glasses Based on Kiou & Brennan Eyes Spherical Model,” Optik - International Journal for Light and Electron Optics, vol. 124, no. 14, pp. 1726-1729, July 2013.

• Yao-Tang Chang, Chih-Ta Yen , Yue-Shiun Wu and *Hsu-Chih Cheng, “Using a Fiber Loop and Fiber Bragg Grating as a Fiber Optic Sensor to Simultaneously Measure Temperature and Displacement,” Sensors, vol. 13, no. 5, pp. 6542-6551, 16 May 2013.

• C.T. Yen, H.C. Cheng, *Y.T. Chang, W.B. Chen, “Performance Analysis of Dual Unipolar/Bipolar Spectral Code in Optical CDMA Systems,” Journal of Applied Reserch and Technology, vol. 11, no. 2, pp. 235-241, April 2013.

• *C.T. Yen and W.B. Chen, “A Study of Bipolar Walsh-Hadamard Coding Method in Optical CDMA Networks,” Applied Mechanics and Materials, vol. 284-287, pp. 2667-2671, 2013.

• *C.T. Yen and W.B. Chen, “A Study of Modified Prime Codes Optical CDMA for Wired-Wireless System,” Applied Mechanics and Materials, vol. 284-287, pp. 2672-2676, 2013.

• C.T. Yen, *I.J. Ding and Z.W. Lai, “A Coded Digital Watermarking Recognition Using Neural Network Method,” Applied Mechanics and Materials, vol. 284-287, pp. 2961-2964 2013.

•  I.J. Ding and *C.T. Yen, “An EigenMLLR-Like Eigen-FLS Approach for Speech Pattern Recognition,” Applied Mechanics and Materials, vol. 284-287, pp. 3030-3034, 2013. (EI)  

• *Chih-Ta Yen, “Phase Diversity Method Embedded with Optical CDMA on Radio-over-Fiber Transmissions,” Accepted by Information-An International Interdisciplinary Journal, Feb., 2012.

• *Chih-Ta Yen, “Optical CDMA Embedded with a Polarization Diversity Scheme for RoF Transmissions,” IET Optoelectronics, vol. 6, no. 3, pp. 131-139, 2012.

• Chih-Ta Yen, *Hsu-Chih Cheng, Yao-Tang Chang, “Phase Noise Suppression of Wavelength-Time Optical CDMA for Radio-over-Fiber Transmissions,” Journal of Nanoelectronics and Optoelectronics, vol. 7, no. 3, pp. 1-4, 2012.

• Chih-Ta Yen, Yi-Chin Fang, and Chen-Mu Tsai, “A study of optical design for optics of high-contrast projector,” SPIE Optical Systems Design, Optical Design and Engineering IV, vol. 8167, pp. 81670R-1 - 81670R-11, Oct. 13, 2011.

• Chih-Ta Yen, Yi-Chin Fang, and Chen-Mu Tsai, “A study of blue-ray pickup head optical system with liquid-crystal optics module,” SPIE Optical Systems Design, Complex Systems: OCS11, vol. 8172, pp. 817211-1 – 817211-10, Sep. 21, 2011.

• Chih-Ta Yen, Yi-Chin Fang, and Cheng-Hsien Huang, “A study of optical design of backlight module with external illuminance,” SPIE Optical Systems Design, Illumination Optics II, vol. 8167  pp. 8170K-1 – 8170K-17, Sep. 19, 2011.

• Chih-Ta Yen, Yi-Chin Fang, Cheng-Hsien Huang, Bo-Ren Hsueh, and Chia-an Chen, “Optical Design of Light Guide Film with External Illuminance Backlight Module,” SPIE Optical Engineering + Applications, Novel Optical Systems Design and Optimization XIV, vol. 8172, pp. 817211-1 – 817211-10, Sep. 9, 2011.

• *Yao-Tang Chang, Jen-Fa Huang, Chuen-Ching Wang, Chih-Ta Yen, Hsu-Chih Cheng, and Li-Wei Chou, “Adaptive modified time-spreading and wavelength-group-hopping embedded M-sequence code for improved confidentiality over synchronous networks,” Optical Engineering, vol. 50, no. 5, pp. 055001(1)-055001(15), May, 2011.

• *Chih-Ta Yen, Jen-Fa Huang, Yao-Tang Chang and Bo-Hau Chen, “Polarization diversity scheme on spectral polarization coding optical code-division multiple-access network,” Optical Engineering, vol. 49, no. 12, pp. 125005(1)-125005(9), Dec., 2010.

• Jen-Fa Huang, *Chih-Ta Yen, and Ying-Wei Tu, “Reduction of Linear Crosstalk over Waveguide-Grating-Based Optical CDMA Coder/Decoders,” J. OPT. COMMUN. NETW. IEEE/OSA, vol. 2, no. 11, pp. 975-983, Nov., 2010.

• *Chih-Ta Yen, Chih-Wei Tsai, “Compensating unflattened WDM chips spectra using dynamic backward-pumped fiber Raman amplifiers technology,” Photonic Network Communications, vol. 21, no. 2, pp. 192-200, Sept., 2010.

• *Yao-Tang Chang, Jen-Fa Huang, Chih-Ta Yen, Chuen-Ching Wang, Hsu-Chih Cheng, and Kai-chun Hsu, “A new shared AWG-based OCDMA scheme implemented with time-spreading and wavelength-group-hopping embedded M-sequence code,” Optical Fiber Technology, vol. 16, issue 2, pp. 114-123, March, 2010.

• *Chih-Ta Yen, “Integrated dispersion slope equalizer of AWG-based optical CDMA for radio-over-fiber transmissions,” Photonic Network Communications, vol. 19, issue 3, pp. 311-319, January, 2010.

• *Jen-Fa Huang, Chih-Ta Yen, and Bo-Hau Chen, “Optical CDMA with Embedded Spectral Polarization Coding over Double Balanced Differential-Detector,” a book chapter in Chong-Gang Wang (ed.): Access Nets, LNICST 6, pp. 441-456, August 2009

• *Chih-Ta Yen, and Jen-Fa Huang, “Realization of OSW/AWG-based Bipolar Wavelength-Time Optical CDMA for Wired-Wireless Transmissions,” Optical Fiber Technology, vol. 15, issue 1, pp. 74-82, Jan., 2009.

• *Chih-Ta Yen, and Jen-Fa Huang, “Nonlinearity Effect in Double-Spread CDMA Wired -Wireless Network,” International Journal of Electrical Engineering, February 2008.

• *Jen-Fa Huang, Chih-Ta Yen, and Tzung-Yen Li, “Nonlinearity Effect of Electro-Optical Modulator Response in Double Spread CDMA Radio-over-Fiber Transmissions,” Optical Fiber Technology, vol. 14, issue 3, pp. 247-258, July, 2008.

• Jen-Fa Huang, *Chih-Ta Yen, and Chih-Wei Tsai, “Compensation scheme for flattening coded wavelength-division multiplexing chip spectra with backward-pumped fiber Raman amplifiers,” Optical Engineering, vol. 46(10), pp. 105005(8), October 2007.

• *Jen-Fa Huang, and Chih-Ta Yen, “Phase noise suppression in multilevel optical code-division multiple-access network coding system with embedded orthogonal polarizations,” Optical Engineering, vol. 45(6), pp. 065005(8), June 2006.

B. Conference Papers

• *Chih-Ta Yen, and Pin-Chen Guo, “A Method for Video Super-Resolution on Low-Cost Edge Devices Based on Edge Computing,” 第三十八屆電腦視覺、圖學暨影像處理研討會 (CVGIP 2025), 三峽, 台灣, August 24-26, 2025.

• *Chih-Ta Yen and Hao-Hsieh Shiun, “Design of OFDM Underwater Acoustic Communication System Based on Long-Term Dependency of Time Series and Multi-Scale Feature Attention,” 2025 The 10th International Conference on Advanced Technology Innovation (ICATI 2025), Hakodate, Japan, July 02-06, 2025.

• Imam Syaroni and *Chih-Ta Yen, “Sustainable Development Goals in Action: Bridging Policy, Research, and Community Engagement in Achieving the 2030 Agenda,” 3rd International Conference of SDGs and Bibliometric Studies (ICoSBi) 2025, Surabaya, Indonesia, 12 July 2025. 

• Jung-An Hsueh and *Chih-Ta Yen, “A Design of Multimodal Fusion for Non-Contact Blood Pressure and Oxygen Saturation Estimation,” 2025 IEEE 10th International Conference on Applied System Innovation (IEEE ICASI 2025), Tokyo, Japan, 22-25 April 2025.

• *Chih-Ta Yen, Jung-Ren Wong and Chia-Hsang Chang, “The Study of Using PPG Signals and Physiological Features to Implement Multi-Label Machine Learning Classification for Cardiovascular Diseases,” 7th International Conference on Knowledge Innovation and Invention 2024 (ICKII 2024), Nagoya, Aichi, Japan on August 16-18, 2024.

• *Chih-Ta Yen, Chia-Hsang Chang and Jung-Ren Wong, “Using PPG Sensor Signals and Physiological Data with Feature Engineering and Machine Learning Algorithms to Calculate Human Fat-Related Indices,” 7th International Conference on Knowledge Innovation and Invention 2024 (ICKII 2024), Nagoya, Aichi, Japan on August 16-18, 2024.

• 顏志達、林建辰, “具注意力機制 CNN-LSTM結合金融相關性分析進行股票預測,” 2024 Conference on Information Technology and Applications in Outlying Islands, 金門大學, 金門, May 24-26, 2024.

• *Chih-Ta Yen, and Hao-Siang Kao, “Convolutional Autoencoder Network with Masked Contrast Enhancement for Brain Tumor MRI Image Recognition,” 2024 IEEE 10th International Conference on Applied System Innovation (IEEE ICASI 2024), Kyoto, Japan, 17-21 April 2024.

• *Chih-Ta Yen, and Un-Hung Chen, “Research on Deep Learning Demodulation Technology of Underwater Sonar Communication System,” International Conference on Innovation, Communication and Engineering 2023 (ICICE 2023), Bangkok, Thailand, 09-13 November 2023.

• *Chih-Ta Yen, and Un-Hung Chen, “Underwater Receiver Design Combining Deep Learning with Primary Transmission Signal Acquisition Capabilities,” International Multi-Conference on Engineering and Technology Innovation 2023 (IMETI 2023), Taoyuan, Taiwan, October 27-OCtober 31, 2023.

• *Chih-Ta Yen, and Chia-Yu Tsao, “Applying Deep Learning Technology for Modulation Signals Classification in Underwater Acoustic Communication,” The IEEE International Conference on Marine Artificial Intelligence and Law (IEEE ICMAIL 2023), Taiwan, 3-4 Sept. 2023.

• *Chih-Ta Yen, Sheng-Nan Chang, Jia-Xian Liao, and Yi-Kai Huang, “Deep Learning-Based Mortality Rate and Length of Stay Prediction in ICUs,” 9th IEEE International Conference on Applied System Innovation 2023 (IEEE ICASI 2023), Japan, 21-25 April 2023 on April 21-25, 2023.

• *Chih-Ta Yen, and Chia-Yu Tsao, “Time Series Feature–Based Network to Identify Modulation Signals in Underwater Acoustic Communication,” 9th IEEE International Conference on Applied System Innovation 2023 (IEEE ICASI 2023), Japan, 21-25 April 2023 on April 21-25, 2023.

• *Chih-Ta Yen, Un-Hung Chen, “Deep Learning for Underwater Communication in Different Sea Areas,” IEEE International Conference on Knowledge Innovation and Invention 2022 (IEEE ICKII 2022), National Dong Hwa University, Hualien, Taiwan, July 22-24, 2022.

• *Chih-Ta Yen, Chia-yu Tsao, “Deep Learning Technologies-based Underwater Acoustic Communication Modulation Pattern Recognition in Different Sea Area Environments, IEEE International Conference on Knowledge Innovation and Invention 2022 (IEEE ICKII 2022), National Dong Hwa University, Hualien, Taiwan, July 22-24, 2022.

• *Chih-Ta Yen, Un-Hung Chen, Guo-Chang Wang, and Zong-Xian Chen, “An accurate noninvasive blood sugar prediction system based on a machine learning algorithm,” IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS - TAIWAN (IEEE 2022 ICCE-TW), Beitou, Taiwan on July 6-8, 2022.

• 蔡軒堯*、陳志榮、顏志逹, “無刷直流馬達(BLDC)改良型PID控制單元,”Proceedings of 2022 National Symposium on System Science and Engineering, National Chung Hsing University, Taichung, 26~29 May, 2022.

• *Chih-Ta Yen, Tz-Yun Chen, and Un-Hung Chen, “Using Feature Fusion with Multi-axis Sensor Signals For Table Tennis Action Recognitions by Deep Learning Network,” IEEE 2022 Join International Conference on Applied System Innovation & Innovation, Communication and Engineering (IEEE-ICASI), Sun Moon Lake, Nantou, Taiwan on April 21-23, 2022.

• *Chih-Ta Yen, Yi-Kai Huang , Jia-Xian Liao, Sheng-Nan Chang, “Development of a Continuous Blood Pressure Measurement by Using a Deep Learning Algorithm and Dual Photoplethysmography Sensor Signals Acquisition Technology,” International Multi-Conference on Engineering and Technology Innovation 2021 (IMETI 2021), Taoyuan, Taiwan, October 29-November 2, 2021.

• *Chih-Ta Yen, Sheng-Nan Chang, Cheng-Hong Liao, “A Composited Deep Learning Framework for PPG-Based Blood Pressure and Heart Rate Estimation,” IEEE 2021 Join International Conference on Applied System Innovation & Innovation, Communication and Engineering (IEEE-ICASI), Alishan, Chiayi, Taiwan, July 18-19, 2021.

• *Chih-Ta Yen and Hsin-Han Tsai, “Applying Neural Network Algorithm of MIMO Log-normal Channel for OFDM/OCDMA System,” IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS - TAIWAN (IEEE 2021 ICCE-TW),  National Penghu University of Science and Technology in Penghu City June 16-18, 2021.

• 呂昊穎、陳昱龍、丁英智、顏志達、張守進、楊勝州, “金奈米粒子修飾氧化鋅奈米柱與酸鹼感測器之應用研究,” 2021 Conference on Information Technology and Applications in Outlying Islands, 金門大學, 金門, May 28-29, 2021.

• *Chih-Ta Yen, Guan-Yu Chen, “The Deep Learning-Based Person Search System in Real Camera Image Scenario,” IEEE 2020 Join International Conference on Applied System Innovation & Innovation, Communication and Engineering (IEEE-ICASI & ICICE 2020), Taitung Taiwan, November 5-8, 2020.

• *Chih-Ta Yen, Sheng-Nan Chang and Cheng-Hong Liao, “Hypertension Classification with Deep Learning Technologies Using Photoplethysmography Signals,” International Multi-Conference on Engineering and Technology Innovation 2020 (IMETI 2020), Taichung, Taiwan, October 23-27, 2020.

• *Chih-Ta Yen and Jia-De Lin, “The Classification Algorithm Evaluation for Human Body Activity Recognition by Machine Learning-Based Method,” International Multi-Conference on Engineering and Technology Innovation 2019 (IMETI 2019), Kaohsiung, Taiwan, November 15-19, 2019.

• *Chih-Ta Yen and Chuan-Yuan Hong, “Integrating Optimal Algorithm with Optical Design for Wireless Light Charging System,” IEEE International Conference on Innovation, Communication and Engineering 2019(IEEE ICICE 2019), Zhengzhou, Henan Province, China, October 25-30, 2019.

• *Chih-Ta Yen, “Using MIMO Technology to Improve the System Performance of Wireless Orthogonal Frequency and Optical Code Division Multiplexing Systems under the Free Space Optical Setting in a Log-normal Distribution Channel,” International Conference on Advanced Technology Innovation 2019 (ICATI 2019), Sapporo, Hokkaido, Japan, July 15-18, 2019.

• *Chih-Ta Yen, “Integrating an Artificial Intelligence Neural Network with Sensing Technology for 3D Printer Fault Diagnosis,” 2018 International Conference on Innovation, Communication and Engineering, Hangzhou (ICICE 2018), Zhejiang Province, P. R. China, November 9–14, 2018.

• *Chih-Ta Yen, “Improving Tracking Error by Dead Reckoning and RSSI Technologies with a Fuzzy Fusion Scheme in Indoor Location,” International Conference on Innovation, Communication and Engineering (ICICE 2017), Kunming, Yunnan Province, P.R. China, November 05-11, 2017.

• Jia-Ming Zhang, Chih-Ta Yen, Chen-Gang Wu and *Cheng-Mu Tsai, “The optical design of a zoom ultra wide angle lens with liquid lens,” 2017 International Symposium on Optomechatronic Technology, Tainan, Taiwan, November 05-09 2017.

• Wen-Zong Zhang, *Chih-Ta Yen, Jen-Fa Huang, “Hiding Stealth CDMA Signals in Public BPSK Channel for Communications Secrecy,” International Multi-Conference on Engineering and Technology Innovation 2017 (IMETI 2017), Hualien, Taiwan, October 27-31, 2017.

• *Chih-Ta Yen, Jen-Fa Huang and Wen-Zong Zhang, “Optical Steganography on Stealth CDMA Signals Transmitted over Public BPSK Channel,” International Conference on Advanced Technology Innovation 2017 (ICATI 2017), Samui, Thailand, June 25-28, 2017.

• *Chih-Ta Yen, Jen-Fa Huang and Ying-Wei Tu, “Crosstalk Suppression by Threshold Adjustment of Codecs in Optical CDMA Network,” International Conference on Applied System Innovation (ICASI 2017), Sapporo, Japan, May 13-17, 2017.

• W.Z. Zhang, J.F. Huang* and C.T. Yen, “Optical Steganography to a Public BPSK by Stealth Spectral-Polarization OCDMA Signals,” Optics & Photonics Taiwan，the International Conference (OPTIC 2016), Taipei, Taiwan, December 3 - 5, 2016

• G.-L. Chen, *C.-T. Yen and C.-Y. Liu, “OCDMA-Based Hybrid OFDM/OOK Modulation Scheme for Free Space Optics,” Optics & Photonics Taiwan，the International Conference (OPTIC 2016), Taipei, Taiwan, December 3 - 5, 2016

• *Chih-Ta Yen and Ming-Feng Cheng “A Study of Fuzzy Control with Ant Colony Algorithm used in Mobile Robot for Shortest Path Planning and Obstacle Avoidance,” 2016 International Conference on Innovation， Communication and Engineering (ICICE 2016), Xi'an, Shaanxi, P.R. China, November 5 - 10, 2016.

• *Chih-Ta Yen and Yu-Ting Lin, “A Study of Optical Design with Narrow Band Imaging for Capsule Endoscope,” International Multi－Conference on Engineering and Technology Innovation 2016 (IMETI 2016), Taichung, Taiwan, October 28-November 01, 2016.

• *Chih-Ta Yen, Chia-Yu Liu, “Hybrid OFDM/OOK Modulations in OCDMA Scheme for Free Space Optics,” International Conference on Advanced Technology Innovation (ICATI 2016), Bali, Indonesia, June 30-July 3, 2016.

• *Chih-Ta Yen and Wen-Bin Chen, “Dispersion Suppression of Polarization Multiplexing-Based OCDMA Wireless-Wired Transmissions,” International Conference on Applied System Innovation (ICASI 2016), Okinawa, Japan, May 28-June 1, 2016.

• Chih-Ta Yen, Shih-Cyuan Jin, and Yu-Ting Lin, “A Study of Optical Design with Genetic Algorithm for Free-form Surfaces in Multifocal Artificial Intraocular Lens,” 2015 Optics & Photonics Taiwan, International Conference (OPTIC 2015), Hsinchu, Taiwan, Dec. 4-6, 2015.

• Wen-Zhong Zhang, *Chih-Ta Yen, Jen-Fa Huang and Guan-Jie Huang, “A Study of Optical Steganography Transmission of Optical CDMA Signals,” 2015 Optics & Photonics Taiwan, International Conference (OPTIC 2015), Hsinchu, Taiwan, Dec. 4-6, 2015.

• Chih-Ta Yen, Jen-Fa Huang, and Guan-Jie Huang, “Employing Optical CDMA Techniques in the Michelson Interferometer Vibration Sensor Networks,” International Multi-Conference on Engineering and Technology innovation 2015 (IMETI 2015), Kaohsiung, Taiwan, Oct. 30-Nov. 3, 2015.

• Chih-Ta Yen, Guan-Jie Huang, A.T. Balkema and G. Westers, “Optical Steganography Transmission of Optical CDMA Signals Over a Public BPSK Channel,” 2015 The fourth International Conference on Innovation, Communication and Engineering (ICICE 2015), Xiangtan, Hunan, P.R. China, Oct. 23-28, 2015.

• Chih-Ta Yen, Cheng-Mu Tsai, and Jyun-Min Shih, “Aberration improvement with liquid field lens scheme in multiple-zooms lens intermediate optics” Optics & Photonics Taiwan, the International Conference (OPTIC) 2014, Taichung, Taiwan, 4-5 December 2014.

• Chih-Ta Yen, Chia-Yu Liu and Cheng-Hao Ke, “A Study of Channel Effects of Free Space Optics in Using Polarization Multiplexing OCDMA Scheme,” 2014 National Symposium on Telecommunication (NST), Taichung, Taiwan, Nov. 27-28, 2014.

• Chih-Ta Yen, Ing-Jr Ding and Jyun-Min Shih, “Image Quality Improvement with Liquid Field Lens Scheme in 9x Zoom Lens Intermediate Optics,” The 3nd International Conference on Engineering and Technology Innovation 2014, Kenting, Taiwan, Oct. 31-Nov. 04, 2014.

• Chih-Ta Yen and Chia-Yu Liu, ” Hybrid Analog/Digital Modulations Using Polarization Multiplexing OCDMA Scheme in Free Space Optics,” The 3nd International Conference on Engineering and Technology Innovation 2014, Kenting, Taiwan, Oct. 31-Nov. 04, 2014.

• Chih-Ta Yen*, Ing-Jr Ding and Yi-Jie Huang, “Frequency domain digital watermark recognition using image code sequences with a back-propagation neural network,” The Third International Conference on Innovation, Communication and Engineering (ICICE 2014), Guiyang, Guizhou, P.R. China, Oct. 17-22, 2014.

• Chih Ta Yen and Chih Ming Chen, “Implementation of 3-D Optical CDMA Networks with Double Balanced Detection,” International Symposium on Computer, Consumer and Control (IS3C), Taichung, Taiwan, June 10-12, 2014.

• Jen-Fa Huang, Chih-Ta Yen, Kai-Sheng Chen, Ping-En Chih, “Experiments on Using Spatial Light Modulators to Realize Optical CDMA Network Coder/Decoders,” The International Conference on Information, Communications and Signal Processing (ICICS), Tainan, Taiwan, Dec. 10-13, 2013.

• Jyun-Min Shih, Chih-Ta Yen, and Jhe-Wen Yea, “Optimal Parameter Design of Multiple Quality Characteristics for Optical Contact Lens Design,” Optics & Photonics Taiwan, the International Conference (OPTIC), Zhongli (also spelled Chung-Li or Jhongli), Taiwan, Dec. 5-7, 2013.

• Jyun-Min Shih, Chih-Ta Yen, Yi-Chin Fang and Jui-Hsin Hsu, “Optical Design and Optimization Using Liquid Crystal Component for Blu-Ray Pickup Head System,” Optics & Photonics Taiwan, the International Conference (OPTIC), Zhongli (also spelled Chung-Li or Jhongli), Taiwan, Dec. 5-7, 2013.

• Cheng-Mu Tsai, Yi-Chin Fang, Chih-Ta Yen, and Chia-An Chen, “Zoom Lens Design with Intermediate Optics,” Optics & Photonics Taiwan, the International Conference (OPTIC), Zhongli (also spelled Chung-Li or Jhongli), Taiwan, Dec. 5-7, 2013.

• Wen-Bin Chen, Chih-Ta Yen and Chia-Yu Liu, “Performance Analysis of OFDM-OCDMA with the Polarization Multiplexing Scheme for Radio-over-fiber Transmissions,” 2013 National Symposium on Telecommunication (NST), Tainan, Taiwan, Nov. 15-16, 2013.

• Chih-Ta Yen, “Phase Diversity Method Embedded with Optical CDMA on Radio-over-Fiber Transmissions,” 2ND International Conference on innovation, communication and engineering (ICICE), Qingdao, Shandong, P.R. China, Oct. 26 – Nov. 1, 2013.

• Chih-Ta Yen, Jen-Fa Huang, Ping-En Chih, “On Realizing Bipolar Optical Access Codecs with Walsh-coded Liquid Crystal Modulators,” The 18th MICROOPTICS CONFERENCE (MOC '13), TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, Japan, Oct. 27-30, 2013.

• Chih-Ta Yen, Ing-Jr Ding, Hsu-Chih Cheng, Jhe-Wen Ye, and Jyun-Min Shih, “Integrated Multi-Object Taguchi method with Optical Design for Contact Lenses,” 2013 International Applied Science and Precision Engineering Conference (ASPEC), Sun Moon Lake, Nantou, Taiwan, Oct. 18-22, 2013.

• Chih-Ta Yen, Ing-Jr Ding, Wen-Bin Chen, “A study of Modified Prime Codes Optical CDMA for Wired-Wireless System,” The 2013 FTRA International Conference on Advanced IT, engineering and Management (FTRA AIM-13), Seoul Korea, Feb. 21-23, 2013.

• 顏志達、賴宗瑋、黃義傑, “應用類神經網路於使用正交序列碼之數位浮水印辨識,” 2012 Workshop on Consumer Electronics (WCE 2012), Taiwan, Nov. 16, 2012.

• 顏志達、葉喆文、陳文濱, “隱形眼鏡之光學設計與優化,” 2012 Workshop on Consumer Electronics (WCE 2012), Taiwan, Nov. 16, 2012.

• Chih-Ta Yen, Wen-Bin Chen, “An Optical CDMA Method for In-vehicle Information Service,” 12th International Conference on ITS Telecommunications (ITST 2012), Taiwan, Nov. 5-8, 2012.

• Chih-Ta Yen, Ing-Jr Ding, Wen-Bin Chen, “A study of Modified Prime Codes Optical CDMA for Wired-Wireless System,” The 2nd International Conference on Engineering and Technology Innovation 2012 (ICETI2012), Taiwan, Nov. 2-6, 2012.

• Chih-Ta Yen, Ing-Jr Ding, Zong-Wei Lai, “A Coded Digital Watermarking Recognition Using Neural Network Method,” The 2nd International Conference on Engineering and Technology Innovation 2012 (ICETI2012), Taiwan, Nov. 2-6, 2012.

• Ing-Jr Ding, Chih-Ta Yen, “Fuzzy Logic-Based Intelligent Control for SVM Speaker Verification with the Support of GMM Prior Information,” The 2nd International Conference on Engineering and Technology Innovation 2012 (ICETI2012), Taiwan, Nov. 2-6, 2012.

• Ing-Jr Ding, Chih-Ta Yen, “An EigenMLLR-like Eigen-FLS Approach for Speech Pattern Recognition,” The 2nd International Conference on Engineering and Technology Innovation 2012 (ICETI2012), Taiwan, Nov. 2-6, 2012.

• Chih-Ta Yen, Hsu-Chih Cheng*, Yao-Tang Chang, “Phase Noise Suppression of Wavelength-Time Optical CDMA for Radio-, over-Fiber Transmissions,” 2012 AMEE Workshop on Nanoelectronics and Optoelectronics (IWNO 2012), Hong Kong, Jan. 18~19, 2012.

• Chih-Ta Yen, Yi-Chin Fang, and Jui-Hsin Hsu, “Optical Design of Blu-Ray Pickup Head System with Liquid Crystal Element,” International Photonics Conference, National Cheng Kung University, Tainan, Taiwan, Dec. 8-10, 2011.

• Chih-Ta Yen, “Performance Analysis in Wavelength-Time Optical CDMA for Radio-over-Fiber Transmissions,” National Symposium on Telecommunications, National Dong Hwa University, Hualien, Taiwan, Nov. 18-19, 2011.

• Chih-Ta Yen, Yi-Chin Fang, and Jui-Hsin Hsu, “Studies of Optical Design of NA .85 Blue-Ray Pickup Head System with Liquid Crystal Optics,” Progress in Electromagnetics Research Symposium (PIERS) in Suzhou CHINA, Sept. 12-16, 2011.

• Chih-Ta Yen, Yi-Chin Fang, and Chen-Mu Tsai, “A study of optical design for optics of high-contrast projector,” SPIE Optical Systems Optical Design and Engineering IV, France, Sep. 6-8, 2011. (EI)

• Chih-Ta Yen, Yi-Chin Fang, and Cheng-Hsien Huang, “A study of optical design of backlight module with external illuminance,” SPIE Optical Systems Design Illumination Optics II, France, Sep. 5-8, 2011. (EI)

• Chih-Ta Yen, Yi-Chin Fang, and Chen-Mu Tsai, “A study of blue-ray pickup head optical system with liquid-crystal optics module,” SPIE Optical Systems Optical Complex Systems: OCS11, France, Sep. 5-8, 2011. (EI)

• Chih-Ta Yen, Yi-Chin Fang, Cheng-Hsien Huang, Bo-Ren Hsueh, and Chia-an Chen, “Optical Design of Light Guide Film with External Illuminance Backlight Module,” SPIE Optical Engineering + Applications, USA, Aug. 21-25, 2011. (EI)

• Chih-Ta Yen, and Wen-bin Chen, “無線超音波感測技術之研發,” The International Conference on Advanced Information Technologies (AIT), Taiwan, Apr. 22-23, 2011.

• Chih-Ta Yen, Yi-Chin Fang, Cheng-Hsien Huang, “A Study of Optical Design of Backlight Module With External Illuminance,” The Fourth Asia-Pacific Light Sources Workshop 2011, Apr. 13-14, 2011.

• Chih-Ta Yen, and Jen-Fa Huang, “Phase Noise Suppression in Wavelength-Hopping and Time-Spreading Optical Code-Division Multiple-Access Network Coding System using Optical Switch,” National Symposium on Telecommunications, National Formosa University, Huwei, Taiwan, Dec. 5-6, 2008.

• Jen-Fa Huang, Chih-Ta Yen, and Bo-Hau Chen, “Phase-Noise Suppression in Optical CDMA Network Using Orthogonal Polarization Techniques,” the 3rd International Conference on Communications and Networking in China, Hangzhou, China, Aug. 25-27, 2008.

• Jen-Fa Huang, Chih-Ta Yen, and Bo-Hau Chen, “Embedding Orthogonal Polarizations over Waveguide-Gratings Optical CDMA Network Codecs,” the 5th Workshop on Fibers and Optical Passive Components, Taipei, Taiwan, Dec. 5-7, 2007.

• Jen-Fa Huang and Chih-Ta Yen, “Nonlinearity Effect in Double-Spread CDMA Wired-Wireless Network,” National Symposium on Telecommunications, National Taipei University of Science and Technology, Taipei, Taiwan, Nov. 23-24, 2007.

• Chih-Ta Yen, Jen-Fa Huang, and Yi-Hsuan Li, “Integrated dispersion slope equalizer for optical code-division multiple-access network,” Optics and Photonics Taiwan’06, BP-052, National Tsing Hua University, Hsin-Chu, Taiwan, Dec. 15-16, 2006.

• Jen-Fa Huang, Chih-Ta Yen, and Chih-Wei Tsai, “Flatness Compensation of WDM Chips Spectra by Using Backward-Pumped Fiber Raman Amplifiers,” the 11th OptoElectronics and Communications Conference (OECC 2006), #7C2-3-1 - #7C2-3-2, National Sun Yat-Sen University, Kaohsiung, Taiwan, July 3-7, 2006.

• Chih-Ta Yen, Tzung-Yen Li, and Jen-Fa Huang, “Nonlinearity Suppression in AWG-Router-Based Radio-over-Fiber Microcellular System,” Opt 2005, B-SA-III 7-1, National Cheng Kung University, Taiwan, Dec. 09-10, 2005.

• Jen-Fa Huang, Chih-Ta Yen, Chen-Mu Tsai, and Fu-Yu Jiang, “Multilevel Optical CDMA Network Coding with Embedded Orthogonal Polarizations to Reduce Phase Noises,” the 5th International Conference on Information, Communications and Signal Processing (ICICS 2005), F2E.2-#P0276, pp. 1191-1196, Bangkok, Thailand, Dec 6-9, 2005.

• Jen-Fa Huang, Chih-Ta Yen, and Chao-Chin Yang, “Radio-over-Fiber System using Arrayed-Waveguide-Grating Router-based Optical CDMA with Modified Prime Code,” the IASTED International Conference on Optical Communication Systems and Networks, #473-025, pp. 13-18, Banff, Alberta, Canada, July 19-21, 2005.

• Jen-Fa Huang and Chih-Ta Yen, “Radio-over-Fiber Transmissions in Complementary Walsh-Hadamard Coded Optical CDMA Networks,” the 10th OptoElectronics and Communications Conference (OECC 2005), #7P-009, pp. 510-511, COEX Convention Center, Seoul, Korea, July 4-8, 2005.

C.專利 

1.  鏡頭總成；發明人：顏志達、方怡欽、林威騰、蔡政穆（發明第I  444652號，專利期間：2014/7/11~2031/5/29）。

2.  鏡頭總成；發明人：顏志達、方怡欽、林威騰、蔡政穆（發明第I  444653號，專利期間：2014/7/11~2031/5/29）。

3.  光纖式共振光束之無線光訊息與功率傳輸系統；鄭旭志、黃俊銘、曾信賓、顏志達、劉宇浩、康晉瑜、羅裕棠（發明第I 705668號，專利期間：2020/9/21~2039/3/20）