Patents by Inventor Chenming Zhang

Chenming Zhang 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).

  • Patent number: 12264512
    Abstract: An actuator device includes: a meshing unit configured to mesh with and release a striker, the meshing unit including a latch; an actuator unit including a motor; an output lever configured to rotate to transmit driving force of the motor in the actuator unit to the meshing unit to drive the meshing unit; and a support member both ends of which are coupled to the meshing unit, the support member being configured to support the actuator unit, wherein the output lever is separated from the support member when viewed from an approaching/separating direction of the striker with respect to the meshing unit.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: April 1, 2025
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Minetaka Katagawa, Yohei Tsuchiya, Chenming Zhang
  • Patent number: 11658677
    Abstract: A system and method of replicating and cancelling chopping folding error in delta-sigma modulators. The modulator may include a loop filter coupled to a quantizer providing a digital signal, chopper circuitry that chops analog signals of the loop filter at a chopping frequency, and chopping folding error cancellation circuitry that replicates and cancels a chopping folding error of the chopper circuitry to provide a corrected digital signal. A digital chopper or multiplier chops the digital signal to provide a chopped digital signal, and the chopped digital signal is either amplified or multiplied by a gain value or digitally filtered to replicate the chopping folding error, which is then subtracted from the digital signal for correction. The timing and duty cycle of the chopping frequency may be adjusted. Timing and duty cycle adjustment may be calibrated along with the filtering.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: May 23, 2023
    Assignee: NXP B.V.
    Inventors: Lucien Johannes Breems, Marcello Ganzerli, Chenming Zhang, Pierluigi Cenci
  • Publication number: 20230102232
    Abstract: A system and method of replicating and cancelling chopping folding error in delta-sigma modulators. The modulator may include a loop filter coupled to a quantizer providing a digital signal, chopper circuitry that chops analog signals of the loop filter at a chopping frequency, and chopping folding error cancellation circuitry that replicates and cancels a chopping folding error of the chopper circuitry to provide a corrected digital signal. A digital chopper or multiplier chops the digital signal to provide a chopped digital signal, and the chopped digital signal is either amplified or multiplied by a gain value or digitally filtered to replicate the chopping folding error, which is then subtracted from the digital signal for correction. The timing and duty cycle of the chopping frequency may be adjusted. Timing and duty cycle adjustment may be calibrated along with the filtering.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Lucien Johannes Breems, Marcello Ganzerli, Chenming Zhang, Pierluigi Cenci
  • Patent number: 11606102
    Abstract: A sigma delta modulator comprises an input configured to receive an input analog signal; a summing junction configured to subtract a feedback analog signal from the input analog signal; a first stage including a low pass filter coupled to the summing junction, wherein the low pass filter is configured to generate a first filtered signal; a second stage coupled to the low pass filter, configured to generate a second filtered signal by an active filter; a back-end stage coupled to the second stage, wherein the back-end stage comprises an analog to digital converter configured to convert the 2nd filtered signal to a digital output signal by sampling at a predetermined sampling frequency (fs); and a feedback path for routing the digital output signal to the summing junction, wherein the feedback path comprises a digital to analog converters, DAC, converting the digital output signal to the feedback analog signal.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: March 14, 2023
    Assignee: NXP B.V.
    Inventors: Chenming Zhang, Marcello Ganzerli, Pierluigi Cenci, Lucien Johannes Breems
  • Publication number: 20220416809
    Abstract: A sigma delta modulator comprises an input configured to receive an input analog signal; a summing junction configured to subtract a feedback analog signal from the input analog signal; a first stage including a low pass filter coupled to the summing junction, wherein the low pass filter is configured to generate a first filtered signal; a second stage coupled to the low pass filter, configured to generate a second filtered signal by an active filter; a back-end stage coupled to the second stage, wherein the back-end stage comprises an analog to digital converter configured to convert the 2nd filtered signal to a digital output signal by sampling at a predetermined sampling frequency(fs); and a feedback path for routing the digital output signal to the summing junction, wherein the feedback path comprises a digital to analog converters, DAC, converting the digital output signal to the feedback analog signal.
    Type: Application
    Filed: September 27, 2021
    Publication date: December 29, 2022
    Inventors: Chenming Zhang, Marcello Ganzerli, Pierluigi Cenci, Lucien Johannes Breems
  • Patent number: 11463101
    Abstract: The present disclosure relates generally to techniques for continuous-time sigma-delta analog-to-digital converter (ADC). The continuous-time sigma-delta ADC may include a feed-forward capacitor in parallel with a current-steering excess loop delay (ELD) digital-to-analog converter (DAC), and by creating a zero in a transfer function of a Gm cell, both an ELD feedback loop settling and a main feedback loop may be recovered. As a result, the performance and stability of the continuous-time sigma-delta ADC can be achieved. Additionally, a summation node in the continuous-time sigma-delta ADC may offer flexibility in the architecture design of the continuous-time sigma-delta ADC.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: October 4, 2022
    Assignee: NXP B.V.
    Inventors: Chenming Zhang, Lucien Johannes Breems, Muhammed Bolatkale
  • Publication number: 20220239314
    Abstract: The present disclosure relates generally to techniques for continuous-time sigma-delta analog-to-digital converter (ADC). The continuous-time sigma-delta ADC may include a feed-forward capacitor in parallel with a current-steering excess loop delay (ELD) digital-to-analog converter (DAC), and by creating a zero in a transfer function of a Gm cell, both an ELD feedback loop settling and a main feedback loop may be recovered. As a result, the performance and stability of the continuous-time sigma-delta ADC can be achieved. Additionally, a summation node in the continuous-time sigma-delta ADC may offer flexibility in the architecture design of the continuous-time sigma-delta ADC.
    Type: Application
    Filed: January 26, 2021
    Publication date: July 28, 2022
    Inventors: Chenming ZHANG, Lucien Johannes BREEMS, Muhammed BOLATKALE
  • Publication number: 20220239311
    Abstract: The present disclosure relates generally to techniques for linearizing a digital-to-analog converter (DAC) in a continuous-time sigma-delta ADC. A sigma-delta ADC may be configured with a multibit quantizer for various applications. These applications may require wide-bandwidth high-resolution high-linearity power-efficient ADCs. In some embodiments, a mismatch of a multibit DAC might result in a bottleneck for achieving high linearity performance. Some linearization techniques may achieve high linearity performance. However, for a high-speed sigma-delta ADC, the DAC is configured to be part of a feedback loop. Existing linearization techniques often increase the delay in the feedback loop, which is not desired. Various aspects of the present disclosure provide improvement to linearization techniques by changing the references of the multibit quantizer. As a result, this reduces delay in the feedback loop of the sigma-delta modulator, which is beneficial for high-speed sigma-delta ADCs.
    Type: Application
    Filed: January 26, 2021
    Publication date: July 28, 2022
    Inventors: Chenming ZHANG, Lucien Johannes BREEMS, Shagun BAJORIA
  • Patent number: 11394395
    Abstract: The present disclosure relates generally to techniques for linearizing a digital-to-analog converter (DAC) in a continuous-time sigma-delta ADC. A sigma-delta ADC may be configured with a multibit quantizer for various applications. These applications may require wide-bandwidth high-resolution high-linearity power-efficient ADCs. In some embodiments, a mismatch of a multibit DAC might result in a bottleneck for achieving high linearity performance. Some linearization techniques may achieve high linearity performance. However, for a high-speed sigma-delta ADC, the DAC is configured to be part of a feedback loop. Existing linearization techniques often increase the delay in the feedback loop, which is not desired. Various aspects of the present disclosure provide improvement to linearization techniques by changing the references of the multibit quantizer. As a result, this reduces delay in the feedback loop of the sigma-delta modulator, which is beneficial for high-speed sigma-delta ADCs.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: July 19, 2022
    Assignee: NXP B.V.
    Inventors: Chenming Zhang, Lucien Johannes Breems, Shagun Bajoria
  • Patent number: 11278608
    Abstract: Provided herein are nicotine polymer-stabilized nanoparticles, formulations thereof, and vaccines. Also provided herein are methods of treating and/or preventing nicotine addiction in a subject in need thereof.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: March 22, 2022
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Chenming Zhang, Zongmin Zhao, Yun Hu
  • Patent number: 11271585
    Abstract: A N-bit continuous-time sigma-delta modulator, SDM, (800) includes an input configured to receive an input analog signal (302); a first summing junction (304) configured to subtract a feedback analog signal (303) from the input analog signal (302); a loop filter (306) configured to filter an output signal from the first summing junction (304): an N-bit analog-to-digital converter, ADC, comprising at least one 1-bit ADC configured to convert the filtered analog output signal (309) to a digital output signal (314) where each 1-bit ADC comprises at least one pair of comparator latches (336, 356); and a feedback path (316) for routing the digital output signal to the first summing junction (304). The feedback path (316) includes a plurality of digital-to-analog converters, DACs, configured to convert the digital output signal (314) to an analog form.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: March 8, 2022
    Assignee: NXP B.V.
    Inventors: Chenming Zhang, Lucien Johannes Breems, Muhammed Bolatkale
  • Publication number: 20210388645
    Abstract: An actuator device includes: a meshing unit configured to mesh with and release a striker, the meshing unit including a latch; an actuator unit including a motor; an output lever configured to rotate to transmit driving force of the motor in the actuator unit to the meshing unit to drive the meshing unit; and a support member both ends of which are coupled to the meshing unit, the support member being configured to support the actuator unit, wherein the output lever is separated from the support member when viewed from an approaching/separating direction of the striker with respect to the meshing unit.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 16, 2021
    Inventors: Minetaka KATAGAWA, Yohei TSUCHIYA, Chenming ZHANG
  • Publication number: 20210126648
    Abstract: A N-bit continuous-time sigma-delta modulator, SDM, (800) includes an input configured to receive an input analog signal (302); a first summing junction (304) configured to subtract a feedback analog signal (303) from the input analog signal (302); a loop filter (306) configured to filter an output signal from the first summing junction (304): an N-bit analog-to-digital converter, ADC, comprising at least one 1-bit ADC configured to convert the filtered analog output signal (309) to a digital output signal (314) where each 1-bit ADC comprises at least one pair of comparator latches (336, 356); and a feedback path (316) for routing the digital output signal to the first summing junction (304). The feedback path (316) includes a plurality of digital-to-analog converters, DACs, configured to convert the digital output signal (314) to an analog form.
    Type: Application
    Filed: October 8, 2020
    Publication date: April 29, 2021
    Inventors: Chenming Zhang, Lucien Johannes Breems, Muhammed Bolatkale
  • Patent number: 10763888
    Abstract: A method includes using a first feedback loop to compensate for a first excess loop delay (ELD) associated with a first quantizer and a first DAC of the first feedback loop. The first quantizer provides a first quantizer output to a second feedback loop. A second feedback loop compensates for a second ELD associated a second quantizer and a second DAC of the second feedback loop. The second quantizer reduces a metastability error associated with the first quantizer output.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: September 1, 2020
    Assignee: NXP B.V.
    Inventors: Chenming Zhang, Lucien Johannes Breems, Muhammed Bolatkale
  • Publication number: 20190351037
    Abstract: Provided herein are nicotine polymer-stabilized nanoparticles, formulations thereof, and vaccines. Also provided herein are methods of treating and/or preventing nicotine addiction in a subject in need thereof.
    Type: Application
    Filed: January 5, 2017
    Publication date: November 21, 2019
    Inventors: Chenming ZHANG, Zongmin ZHAO, Yun HU
  • Patent number: 10443276
    Abstract: The present invention relates to a vehicle latch device; a vehicle latch device (1) includes a switch plate (46), which is provided in a housing (23), and is able to conduct electricity to a motor (48) or another electrical component in the housing (23) other than the motor 48; and the switch plate (46) is formed separately from the housing (23) and formed by an electrically conductive plate being embedded in a synthetic resin 462 in a state where a portion thereof electrically conductive to the motor or electrical component and a connection terminal portion thereof to outside are exposed. The switch plate (46) is fixed in the housing 23 by engagement means 255, 256, 257, 464a, 465, and 467 that engage the synthetic resin 462 and the housing 23 with each other.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: October 15, 2019
    Assignee: Mitsui Kinzoku Act Corporation
    Inventors: Masakazu Akahori, Chenming Zhang
  • Patent number: D970417
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: November 22, 2022
    Assignee: FCA US LLC
    Inventors: Chenming Zhang, Tome Jovanoski
  • Patent number: D1027783
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: May 21, 2024
    Assignee: FCA US LLC
    Inventors: Chenming Zhang, Irina Zavatski
  • Patent number: D1046687
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: October 15, 2024
    Assignee: FCA US LLC
    Inventors: Mark T Allen, Timothy A Doyle, Tome Jovanoski, Chenming Zhang, Gregory A Howell, Joshua T Holly, Nicolas Ren Stone
  • Patent number: D1058436
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: January 21, 2025
    Assignee: FCA US LLC
    Inventors: Timothy A Doyle, Chenming Zhang, Gregory A Howell, Mark T Allen