Patents by Inventor Chi-Hsin Wu
Chi-Hsin Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11967546Abstract: A semiconductor structure includes a first interposer; a second interposer laterally adjacent to the first interposer, where the second interposer is spaced apart from the first interposer; and a first die attached to a first side of the first interposer and attached to a first side of the second interposer, where the first side of the first interposer and the first side of the second interposer face the first die.Type: GrantFiled: July 21, 2022Date of Patent: April 23, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Shang-Yun Hou, Hsien-Pin Hu, Sao-Ling Chiu, Wen-Hsin Wei, Ping-Kang Huang, Chih-Ta Shen, Szu-Wei Lu, Ying-Ching Shih, Wen-Chih Chiou, Chi-Hsi Wu, Chen-Hua Yu
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Publication number: 20240072776Abstract: An entropy source circuit, comprising: a first adjustable ring oscillator for operating under a first setting or a second setting according to a first control signal, for respectively generating a first oscillation clock signal and a second oscillation clock signal which have different frequencies under the first setting and the second setting; a first sampling circuit, for sampling the first oscillating clock signal according to the sampling frequency to generate first sampling values, or sampling the second oscillating clock signal according to the sampling frequency to generate second sampling values; a first detection circuit detecting a first distribution of the first sampling values; and a control circuit generating the first control signal to switch the first setting to the second setting when the first distribution does not meet a predetermined distribution. The entropy source circuit outputs entropy values according to the first sample value or the second sample value.Type: ApplicationFiled: July 6, 2023Publication date: February 29, 2024Applicant: PUFsecurity CorporationInventors: Chi-Yi Shao, Kai-Hsin Chuang, Meng-Yi Wu
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Patent number: 9117097Abstract: An electronic device includes a washer, a printed circuit board, and a screw. The printed circuit board includes a copper foil, a detecting unit and a processing unit. The copper foil comprises a plurality of electrical signal interfaces surrounding a first via defined in the copper foil. The washer defines a second via and includes a transmission metal. The screw combines the printed circuit board and the washer through the second via and the first via. The detecting unit stores an original logic level signal, and detects logic level signals of the electrical signal interfaces in real-time. The processing unit compares the original logic level signal and the detected logic level signal, to determine whether the electronic device is disassembled. If the electronic device is disassembled, the electronic device stops working.Type: GrantFiled: October 8, 2013Date of Patent: August 25, 2015Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chi-Hsin Wu, Mao-Chang Chuang
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Publication number: 20140304841Abstract: An electronic device includes a washer, a printed circuit board, and a screw. The printed circuit board includes a copper foil, a detecting unit and a processing unit. The copper foil comprises a plurality of electrical signal interfaces surrounding a first via defined in the copper foil. The washer defines a second via and includes a transmission metal. The screw combines the printed circuit board and the washer through the second via and the first via. The detecting unit stores an original logic level signal, and detects logic level signals of the electrical signal interfaces in real-time. The processing unit compares the original logic level signal and the detected logic level signal, to determine whether the electronic device is disassembled. If the electronic device is disassembled, the electronic device stops working.Type: ApplicationFiled: October 8, 2013Publication date: October 9, 2014Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHI-HSIN WU, MAO-CHANG CHUANG
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Patent number: 8364110Abstract: A RF front end circuit includes a processor, a main receiving (Rx) path and an adjustment path connected between the processor and an external antenna array in parallel, and a coupling module coupled with the main Rx path. The adjustment path includes an adjustment transmitting (Tx) path, an adjustment Rx path, and a DSP. The adjustment Tx path includes a coupling switch. When the circuit operates in an adjustment mode, the switch is connected to the coupling module, the adjustment Rx path receives and demodulates a first analog signal, the DSP converts the first analog signal to a digital signal, clipping a peak of the digital signal, and converts the digital signal to a second analog signal, the adjustment Tx path modulates and reverses the phase of the second analog signal, and the coupling module couples the second analog signal to the main Rx path to counteract noise received thereby.Type: GrantFiled: November 19, 2010Date of Patent: January 29, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Mao-Chang Chuang, Chi-Hsin Wu
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Publication number: 20120045006Abstract: A RF front end circuit includes a processor, a main receiving (Rx) path and an adjustment path connected between the processor and an external antenna array in parallel, and a coupling module coupled with the main Rx path. The adjustment path includes an adjustment transmitting (Tx) path, an adjustment Rx path, and a DSP. The adjustment Tx path includes a coupling switch. When the circuit operates in an adjustment mode, the switch is connected to the coupling module, the adjustment Rx path receives and demodulates a first analog signal, the DSP converts the first analog signal to a digital signal, clipping a peak of the digital signal, and converts the digital signal to a second analog signal, the adjustment Tx path modulates and reverses the phase of the second analog signal, and the coupling module couples the second analog signal to the main Rx path to counteract noise received thereby.Type: ApplicationFiled: November 19, 2010Publication date: February 23, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: MAO-CHANG CHUANG, CHI-HSIN WU
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Patent number: 8064846Abstract: A RF circuit includes a master PCB, a plurality of slave PCBs and a plurality of antennas. The master PCB includes at least two RF ICs and at least two transceiving diplexer groups for tranceiving different frequency bands. Each transceiving diplexer group includes a plurality of transceiving diplexers transceiving a same frequency band and electrically connected to the RF ICs via PCB tracks without intersection. Each slave PCB includes a frequency division diplexer electrically connected to at least two transceiving diplexers respectively belonging to different tranceiving diplexer groups for respectively transmitting different frequency bands. Each antenna electrically connects to one of the division diplexers.Type: GrantFiled: December 11, 2008Date of Patent: November 22, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shyue-Dar Chen, Chia-Yin Liao, Chi-Hsin Wu
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Publication number: 20100041346Abstract: A RF circuit includes a master PCB, a plurality of slave PCBs and a plurality of antennas. The master PCB includes at least two RF ICs and at least two transceiving diplexer groups for tranceiving different frequency bands. Each transceiving diplexer group includes a plurality of transceiving diplexers transceiving a same frequency band and electrically connected to the RF ICs via PCB tracks without intersection. Each slave PCB includes a frequency division diplexer electrically connected to at least two transceiving diplexers respectively belonging to different tranceiving diplexer groups for respectively transmitting different frequency bands. Each antenna electrically connects to one of the division diplexers.Type: ApplicationFiled: December 11, 2008Publication date: February 18, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Shyue-Dar Chen, Chia-Yin Liao, Chi-Hsin Wu