Patents by Inventor Chao-Chieh Li
Chao-Chieh Li 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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Publication number: 20240022255Abstract: An integrated circuit device includes a digitally controlled oscillator (DCO), two charge-sharing capacitors, two charge-sharing switches, two pre-charge switches, and two DACs. The DCO has a first inverter and a second inverter. A first charge-sharing capacitor has a first terminal coupled to an input terminal of the first inverter through a first charge-sharing switch. A first DAC has an output terminal coupled to the first terminal of the first charge-sharing capacitor through a first pre-charge switch. A second charge-sharing capacitor has a first terminal coupled to an input terminal or an output terminal of the second inverter through a second charge-sharing switch. A second DAC has an output terminal coupled to the first terminal of the second charge-sharing capacitor through a second pre-charge switch.Type: ApplicationFiled: July 25, 2023Publication date: January 18, 2024Inventors: Min-Shueh YUAN, Chao-Chieh LI, Chia-Chun LIAO, Yu-Tso LIN, Wen-Yuan TSAI, Chih-Hsien CHANG
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Publication number: 20230384373Abstract: An electronic circuit and a method of error correction are provided. The electronic circuit includes a time-to-digital converter (TDC) and an error cancelation circuit. The TDC is configured to generate a first signal. The error cancelation circuit is configured to evaluate a majority of bit values of at least a portion of the first signal to generate a second signal. The number of transitions within the second signal is less than the number of transitions within the first signal.Type: ApplicationFiled: May 30, 2022Publication date: November 30, 2023Inventors: CHIA-CHUN LIAO, CHAO CHIEH LI, YU-TSO LIN, MIN-SHUEH YUAN
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Patent number: 11749710Abstract: According to some embodiments, an integrated circuit device is disclosed. The integrated circuit device include at least one inductor having at least one turn, a magnetic coupling ring positioned adjacent to the at least one inductor, the magnetic coupling ring comprising at least two magnetic coupling turns, the at least two magnetic coupling turns are disposed adjacent to the at least one turn to enable magnetic coupling between the at least two magnetic coupling turns and the at least one turn The integrated circuit device also includes a power electrode and a ground electrode, wherein the power electrode and the ground electrode are coupled to the at least one inductor and the magnetic coupling ring to provide a first current in the at least one inductor having a direction opposite to a second current in the magnetic coupling ring to cancel at least a portion of a magnetic field generated by the at least one inductor.Type: GrantFiled: April 5, 2021Date of Patent: September 5, 2023Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chao Chieh Li, Hao-chieh Chan
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Patent number: 11742865Abstract: An integrated circuit device includes a digitally controlled oscillator (DCO), two charge-sharing capacitors, two charge-sharing switches, two pre-charge switches, and two DACs. The DCO has a first inverter and a second inverter. A first charge-sharing capacitor has a first terminal coupled to an input terminal of the first inverter through a first charge-sharing switch. A first DAC has an output terminal coupled to the first terminal of the first charge-sharing capacitor through a first pre-charge switch. A second charge-sharing capacitor has a first terminal coupled to an input terminal or an output terminal of the second inverter through a second charge-sharing switch. A second DAC has an output terminal coupled to the first terminal of the second charge-sharing capacitor through a second pre-charge switch.Type: GrantFiled: January 31, 2022Date of Patent: August 29, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Min-Shueh Yuan, Chao-Chieh Li, Chia-Chun Liao, Yu-Tso Lin, Wen-Yuan Tsai, Chih-Hsien Chang
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Publication number: 20230118223Abstract: A circuit is disclosed. The circuit includes a time-to-digital converter (TDC), and an evaluation circuit coupled to the TDC and a phase-locked loop (PLL) external to the circuit.Type: ApplicationFiled: December 7, 2022Publication date: April 20, 2023Inventors: CHAO CHIEH LI, CHIA-CHUN LIAO, MIN-SHUEH YUAN, CHIH-HSIEN CHANG
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Publication number: 20230052899Abstract: An integrated circuit device includes a digitally controlled oscillator (DCO), two charge-sharing capacitors, two charge-sharing switches, two pre-charge switches, and two DACs. The DCO has a first inverter and a second inverter. A first charge-sharing capacitor has a first terminal coupled to an input terminal of the first inverter through a first charge-sharing switch. A first DAC has an output terminal coupled to the first terminal of the first charge-sharing capacitor through a first pre-charge switch. A second charge-sharing capacitor has a first terminal coupled to an input terminal or an output terminal of the second inverter through a second charge-sharing switch. A second DAC has an output terminal coupled to the first terminal of the second charge-sharing capacitor through a second pre-charge switch.Type: ApplicationFiled: January 31, 2022Publication date: February 16, 2023Inventors: Min-Shueh YUAN, Chao-Chieh LI, Chia-Chun LIAO, Yu-Tso LIN, Wen-Yuan TSAI, Chih-Hsien CHANG
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Patent number: 11533056Abstract: A circuit is disclosed. The circuit includes a time-to-digital converter (TDC), and an evaluation circuit coupled to the TDC and a phase-locked loop (PLL) external to the circuit.Type: GrantFiled: September 17, 2019Date of Patent: December 20, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chao Chieh Li, Chia-Chun Liao, Min-Shueh Yuan, Chih-Hsien Chang
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Publication number: 20220294456Abstract: Systems and methods are provided for hopping a digitally controlled oscillator (DCO) among a plurality of channels, wherein a gain of the DCO KDCO is a nonlinear function of frequency. A first normalized tuning word (NTW) corresponding to a first channel of the plurality of channels is generated. A first normalizing gain multiplier X is generated based on the nonlinear function of frequency, on an estimate of the nonlinear function of frequency, at a first frequency corresponding to the first channel. The first NTW is multiplied by the first X to obtain a first oscillator tuning word (OTW). The first OTW is input to the DCO to cause the DCO to hop to the first channel. A system for hopping among a plurality of channels at a plurality of respective frequencies comprises a phase-locked loop (PLL), a digitally controlled oscillator (DCO), a multiplexer, and an arithmetic module.Type: ApplicationFiled: May 24, 2022Publication date: September 15, 2022Inventors: Chao Chieh Li, Min-Shueh Yuan, Robert Bogdan Staszewski, Chia-Chun Liao
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Patent number: 11356108Abstract: A frequency generator is disclosed. The frequency generator is for generating an oscillator clock according to a reference clock, and the frequency generator is used in a frequency hopping system that switches a carrier frequency among a plurality of channels, and the carrier frequency further carries a modulation frequency for data transmission. The frequency generator includes: a frequency hopping and modulation control unit, arranged for generating a current channel according to a channel hopping sequence and a frequency command word (FCW) based on the reference clock, a digital-controlled oscillator (DCO), arranged for to generating the oscillator clock according to an oscillator tuning word (OTW) obtained according to the estimated DCO normalization value. An associated method is also disclosed.Type: GrantFiled: April 20, 2021Date of Patent: June 7, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chia-Chun Liao, Min-Shueh Yuan, Chao-Chieh Li, Robert Bogdan Staszewski
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Patent number: 11349484Abstract: Systems and methods are provided for hopping a digitally controlled oscillator (DCO) among a plurality of channels, wherein a gain of the DCO KDCO is a nonlinear function of frequency. A first normalized tuning word (NTW) corresponding to a first channel of the plurality of channels is generated. A first normalizing gain multiplier X is generated based on the nonlinear function of frequency, on an estimate of the nonlinear function of frequency, at a first frequency corresponding to the first channel. The first NTW is multiplied by the first X to obtain a first oscillator tuning word (OTW). The first OTW is input to the DCO to cause the DCO to hop to the first channel. A system for hopping among a plurality of channels at a plurality of respective frequencies comprises a phase-locked loop (PLL), a digitally controlled oscillator (DCO), a multiplexer, and an arithmetic module.Type: GrantFiled: February 17, 2021Date of Patent: May 31, 2022Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Chao Chieh Li, Min-Shueh Yuan, Robert Bogdan Staszewski, Chia-Chun Liao
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Patent number: 11139778Abstract: Apparatus, circuits and methods for clock generation are disclosed herein. In some embodiments, an apparatus is disclosed. The apparatus includes: a first transistor pair electrically coupled to a pair of output nodes; a second transistor pair electrically coupled to the pair of output nodes; and an inductive unit electrically coupled between the output nodes and electrically coupled between gates of the first transistor pair. The inductive unit comprises: a first inductive element electrically coupled to one gate of the first transistor pair; and a second inductive element electrically coupled to one of the output nodes. The first inductive element and the second inductive element are configured to be magnetically coupled to each other.Type: GrantFiled: March 31, 2020Date of Patent: October 5, 2021Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chao-Chieh Li, Robert Bogdan Staszewski
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Publication number: 20210305940Abstract: Apparatus, circuits and methods for clock generation are disclosed herein. In some embodiments, an apparatus is disclosed. The apparatus includes: a first transistor pair electrically coupled to a pair of output nodes; a second transistor pair electrically coupled to the pair of output nodes; and an inductive unit electrically coupled between the output nodes and electrically coupled between gates of the first transistor pair. The inductive unit comprises: a first inductive element electrically coupled to one gate of the first transistor pair; and a second inductive element electrically coupled to one of the output nodes. The first inductive element and the second inductive element are configured to be magnetically coupled to each other.Type: ApplicationFiled: March 31, 2020Publication date: September 30, 2021Inventors: Chao-Chieh LI, Robert Bogdan STASZEWSKI
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Publication number: 20210242873Abstract: A frequency generator is disclosed. The frequency generator is for generating an oscillator clock according to a reference clock, and the frequency generator is used in a frequency hopping system that switches a carrier frequency among a plurality of channels, and the carrier frequency further carries a modulation frequency for data transmission. The frequency generator includes: a frequency hopping and modulation control unit, arranged for generating a current channel according to a channel hopping sequence and a frequency command word (FCW) based on the reference clock, a digital-controlled oscillator (DCO), arranged for to generating the oscillator clock according to an oscillator tuning word (OTW) obtained according to the estimated DCO normalization value. An associated method is also disclosed.Type: ApplicationFiled: April 20, 2021Publication date: August 5, 2021Inventors: CHIA-CHUN LIAO, MIN-SHUEH YUAN, CHAO-CHIEH LI, ROBERT BOGDAN STASZEWSKI
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Publication number: 20210225999Abstract: According to some embodiments, an integrated circuit device is disclosed. The integrated circuit device include at least one inductor having at least one turn, a magnetic coupling ring positioned adjacent to the at least one inductor, the magnetic coupling ring comprising at least two magnetic coupling turns, the at least two magnetic coupling turns are disposed adjacent to the at least one turn to enable magnetic coupling between the at least two magnetic coupling turns and the at least one turn The integrated circuit device also includes a power electrode and a ground electrode, wherein the power electrode and the ground electrode are coupled to the at least one inductor and the magnetic coupling ring to provide a first current in the at least one inductor having a direction opposite to a second current in the magnetic coupling ring to cancel at least a portion of a magnetic field generated by the at least one inductor.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chao Chieh Li, Hao-chieh Chan
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Publication number: 20210184681Abstract: Systems and methods are provided for hopping a digitally controlled oscillator (DCO) among a plurality of channels, wherein a gain of the DCO KDCO is a nonlinear function of frequency. A first normalized tuning word (NTW) corresponding to a first channel of the plurality of channels is generated. A first normalizing gain multiplier X is generated based on the nonlinear function of frequency, on an estimate of the nonlinear function of frequency, at a first frequency corresponding to the first channel. The first NTW is multiplied by the first X to obtain a first oscillator tuning word (OTW). The first OTW is input to the DCO to cause the DCO to hop to the first channel. A system for hopping among a plurality of channels at a plurality of respective frequencies comprises a phase-locked loop (PLL), a digitally controlled oscillator (DCO), a multiplexer, and an arithmetic module.Type: ApplicationFiled: February 17, 2021Publication date: June 17, 2021Inventors: Chao Chieh Li, Min-Shueh Yuan, Robert Bogdan Staszewski, Chia-Chun Liao
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Patent number: 11031942Abstract: A frequency generator is disclosed. The frequency generator is for generating an oscillator clock according to a reference clock, and the frequency generator is used in a frequency hopping system that switches a carrier frequency among a plurality of channels, and the carrier frequency further carries a modulation frequency for data transmission. The frequency generator includes: a frequency hopping and modulation control unit, arranged for generating a current channel according to a channel hopping sequence and a frequency command word (FCW) based on the reference clock, a digital-controlled oscillator (DCO), arranged for to generating the oscillator clock according to an oscillator tuning word (OTW) Obtained according to the estimated DCO normalization value. An associated method is also disclosed.Type: GrantFiled: August 4, 2020Date of Patent: June 8, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chia-Chun Liao, Min-Shueh Yuan, Chao-Chieh Li, Robert Bogdan Staszewski
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Patent number: 10971577Abstract: According to some embodiments, an integrated circuit device is disclosed. The integrated circuit device include at least one inductor having at least one turn, a magnetic coupling ring positioned adjacent to the at least one inductor, the magnetic coupling ring comprising at least two magnetic coupling turns, the at least two magnetic coupling turns are disposed adjacent to the at least one turn to enable magnetic coupling between the at least two magnetic coupling turns and the at least one turn. The integrated circuit device also includes a power electrode and a ground electrode, wherein the power electrode and the ground electrode are coupled to the at least one inductor and the magnetic coupling ring to provide a first current in the at least one inductor having a direction opposite to a second current in the magnetic coupling ring to cancel at least a portion of a magnetic field generated by the at least one inductor.Type: GrantFiled: June 11, 2019Date of Patent: April 6, 2021Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chao Chieh Li, Hao-chieh Chan
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Publication number: 20210080503Abstract: A circuit is disclosed. The circuit includes a time-to-digital converter (TDC), and an evaluation circuit coupled to the TDC and a phase-locked loop (PLL) external to the circuit.Type: ApplicationFiled: September 17, 2019Publication date: March 18, 2021Inventors: CHAO CHIEH LI, CHIA-CHUN LIAO, MIN-SHUEH YUAN, CHIH-HSIEN CHANG
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Patent number: 10931285Abstract: Systems and methods are provided for hopping a digitally controlled oscillator (DCO) among a plurality of channels, wherein a gain of the DCO KDCO is a nonlinear function of frequency. A first normalized tuning word (NTW) corresponding to a first channel of the plurality of channels is generated. A first normalizing gain multiplier X is generated based on the nonlinear function of frequency, on an estimate of the nonlinear function of frequency, at a first frequency corresponding to the first channel. The first NTW is multiplied by the first X to obtain a first oscillator tuning word (OTW). The first OTW is input to the DCO to cause the DCO to hop to the first channel. A system for hopping among a plurality of channels at a plurality of respective frequencies comprises a phase-locked loop (PLL), a digitally controlled oscillator (DCO), a multiplexer, and an arithmetic module.Type: GrantFiled: April 17, 2020Date of Patent: February 23, 2021Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Chao Chieh Li, Min-Shueh Yuan, Robert Bogdan Staszewski, Chia-Chun Liao
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Patent number: 10868542Abstract: Systems and methods for compensating a non-linearity of a digitally controlled oscillator (DCO) are presented. Data comprising a plurality of silicon measurements is received. Each silicon measurement in the plurality of silicon measurements is compared to an ideal value. Based on the comparing, a plurality of compensation vectors is generated. Each compensation vector comprises at least one silicon measurement. At least one frequency is adjusted based on a compensation vector in the plurality of compensation vectors. A digitally-controlled oscillator frequency is generated based on the adjusted at least one frequency.Type: GrantFiled: April 17, 2020Date of Patent: December 15, 2020Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Chao Chieh Li, Chia-Chun Liao, Min-Shueh Yuan, Robert Bogdan Staszewski