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Browsing by Author "Ou-Yang, Yi-Huan"

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    Design Considerations and Clinical Applications of Closed-Loop Neural Disorder Control SoCs
    (2017-01-01)
    Wu, Chung-Yu
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    Cheng, Cheng-Hsiang
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    Ou-Yang, Yi-Huan
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    Chen, Chiung-Chu
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    Chen, Wei-Ming
    This paper presents the closed-loop neural disorder control concept and some design considerations. Two architectures of closed-loop neuromodulation for Parkinson's disease and epileptic seizure are proposed. One is a closed-loop deep brain stimulator, which meets the IEC 60601-1 standard. The other one is an implantable SoC for epileptic seizure control, which is verified by animal experiment.
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    Extrinsic Data Compression Method for Double-Binary Turbo Codes
    (2012)
    Ou-Yang, Yi-Huan
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    Kao, Chien-Yu
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    Hsu, Jen-Yuan
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    Ting, Pang-An
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    Lee, Chen-Yi
    This paper presents an extrinsic data compression method for double-binary turbo codes. Frame and extrinsic data memory occupy more area in turbo decoder implementations with the frame size increasing. Besides, non-binary turbo codes have much more extrinsic memory usage than single-binary turbo codes. This proposed compression method utilizes an operation in radix-4 single-binary turbo decoder and also can simplify the integration of single and double-binary turbo decoders in hardware implementations. It can reduce one-third of extrinsic memory size, about 15% of total memory usage. Simulation results show that this method only causes 0.2dB performance loss when bit error rate is equal to 10-5 with slight hardware increment.