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: 10439633
    Abstract: A multi-bit continuous-time sigma-delta modulator, SDM, includes an input configured to receive an input analog signal; a first summing junction configured to subtract a feedback analog signal from the input analog signal; a loop filter configured to filter an output signal from the first summing junction: an analog-to-digital converter, ADC, configured to convert the filtered analog output signal to a digital output signal; and a feedback path for routing the digital output signal to the first summing junction. The feedback path includes a plurality of digital-to-analog converters, DACs, configured to convert the digital output signal to an analog form. The ADC includes multiple per-bit parallel loops, each loop configured to provide a per-bit current summation of the filtered analog output signal such that an output of the multiple per-bit parallel loops is a multi-bit quantization digital output signal.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: October 8, 2019
    Assignee: NXP B.V.
    Inventors: Lucien Johannes Breems, Muhammed Bolatkale, Chenming Zhang
  • Patent number: 10407950
    Abstract: A vehicle door latch device includes: a seal sticking portion at which an upper seal portion of a waterproof seal is stuck, and which is provided upward in a protruding manner at an upper portion of a body accommodating portion; an upper positioning unit which is provided at a lower edge and a side edge on an extra-vehicle side of the seal sticking portion, the upper positioning unit being configured to receive and position a lower surface and an end face on the extra-vehicle side of the upper seal; and a side positioning unit which is configured to position a side seal portion of the waterproof seal to be directed diagonally downward, and which is provided on a surface on an intra-vehicle side of the cover where the side seal portion is stuck.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: September 10, 2019
    Assignee: Mitsui Kinzoku Act Corporation
    Inventors: Masakazu Akahori, Chenming Zhang
  • Patent number: 10267069
    Abstract: A door latch actuator comprises a reversible motor, a rotating object, a drive portion and an actuating member. The drive portion comprises two locking/unlocking drive projections and stopping projections. The actuating member comprises a pair of driven portions. When the drive portion is rotated in one direction, one of the locking/unlocking drive projections comes in contact with one of the driven portions to move the actuating member to a lock position. When the actuating member is moved to the lock position, the locking/unlocking drive projection leaves a recess, and the stopping projection comes in contact with the actuating member to stop rotation of the drive portion. When the drive portion rotates in an opposite direction, the other locking/unlocking drive projection comes in contact with the other driven portion, so that the actuating member is moved toward an unlock position.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 23, 2019
    Assignee: Mitsui Kinzoku Act Corporation
    Inventor: Chenming Zhang
  • Publication number: 20180343013
    Abstract: A multi-bit continuous-time sigma-delta modulator, SDM, includes an input configured to receive an input analog signal, a first summing junction configured to subtract a feedback analog signal from the input analog signal, a loop filter configured to filter an output signal from the first summing junction: an analog-to-digital converter, ADC, configured to convert the filtered analog output signal to a digital output signal; and a feedback path for routing the digital output signal to the first summing junction. The feedback path includes a plurality of digital-to-analog converters, DACs, configured to convert the digital output signal to an analog form. The ADC includes multiple per-bit parallel loops, each loop configured to provide a per-bit current summation of the filtered analog output signal such that an output of the multiple per-bit parallel loops is a multi-bit quantization digital output signal.
    Type: Application
    Filed: March 20, 2018
    Publication date: November 29, 2018
    Inventors: Lucien Johannes BREEMS, Muhammed BOLATKALE, Chenming ZHANG
  • Publication number: 20170204639
    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: Application
    Filed: January 6, 2015
    Publication date: July 20, 2017
    Inventors: Masakazu AKAHORI, Chenming ZHANG
  • Publication number: 20170138096
    Abstract: A door latch actuator comprises a reversible motor, a rotating object, a drive portion and an actuating member. The drive portion comprises two locking/unlocking drive projections and stopping projections. The actuating member comprises a pair of driven portions. When the drive portion is rotated in one direction, one of the locking/unlocking drive projections comes in contact with one of the driven portions to move the actuating member to a lock position. When the actuating member is moved to the lock position, the locking/unlocking drive projection leaves a recess, and the stopping projection comes in contact with the actuating member to stop rotation of the drive portion. When the drive portion rotates in an opposite direction, the other locking/unlocking drive projection comes in contact with the other driven portion, so that the actuating member is moved toward an unlock position.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 18, 2017
    Inventor: Chenming Zhang
  • Publication number: 20160201363
    Abstract: A vehicle door latch device includes: a seal sticking portion at which an upper seal portion of a waterproof seal is stuck, and which is provided upward in a protruding manner at an upper portion of a body accommodating portion; an upper positioning unit which is provided at a lower edge and a side edge on an extra-vehicle side of the seal sticking portion, the upper positioning unit being configured to receive and position a lower surface and an end face on the extra-vehicle side of the upper seal; and a side positioning unit which is configured to position a side seal portion of the waterproof seal to be directed diagonally downward, and which is provided on a surface on an intra-vehicle side of the cover where the side seal portion is stuck.
    Type: Application
    Filed: January 6, 2015
    Publication date: July 14, 2016
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Masakazu AKAHORI, Chenming ZHANG
  • Patent number: 8898598
    Abstract: A method of layout pattern modification includes the following steps: step 1: performing an OPC process on a layout containing a plurality of square patterns to obtain a plurality of post-OPC patterns in correspondence with the plurality of square patterns; step 2: performing a manufacturing rule check on each of the plurality of post-OPC patterns to identify, from the plurality of post-OPC patterns, one or more post-OPC patterns violating the manufacturing rule; and step 3: rotating at least one of the one or more post-OPC patterns violating the manufacturing rule; and step 4: performing a manufacturing rule check on each of the rotated and non-rotated post-OPC patterns, if no post-OPC pattern violating the manufacturing rule is identified, finishing the process; otherwise, if one or more post-OPC patterns violating the manufacturing rule are identified, continuing to perform step 3 and step 4.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 25, 2014
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Chenming Zhang, HsuSheng Chang, Fang Wei
  • Patent number: 8434034
    Abstract: The present invention relates to the field of semiconductor manufacturing, and particularly to a method of making Optical Proximity Correction to an original gate photomask pattern based on different substrate areas. The present invention discloses a method of making OPC to an original gate photomask pattern based on different substrate areas, which makes correction to gate photomask pattern dimension on the AA and to gate photomask pattern dimension on the STI respectively by creating two different optical proximity effect models of the gate, so as to control the finally imaged gate photomask pattern dimensions more accurately; moreover, the error of the correction result of the gate spacing dimension on the STI can be reduced by 4% by separating the patterns and using the gate model based on the STI, so as to avoid the spacing dimension error when the photolithography exposure conditions vary.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 30, 2013
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Fang Wei, Chenming Zhang
  • Publication number: 20130067423
    Abstract: The present invention relates to the field of semiconductor manufacturing, and particularly to a method of making Optical Proximity Correction to an original gate photomask pattern based on different substrate areas. The present invention discloses a method of making OPC to an original gate photomask pattern based on different substrate areas, which makes correction to gate photomask pattern dimension on the AA and to gate photomask pattern dimension on the STI respectively by creating two different optical proximity effect models of the gate, so as to control the finally imaged gate photomask pattern dimensions more accurately; moreover, the error of the correction result of the gate spacing dimension on the STI can be reduced by 4% by separating the patterns and using the gate model based on the STI, so as to avoid the spacing dimension error when the photolithography exposure conditions vary.
    Type: Application
    Filed: December 29, 2011
    Publication date: March 14, 2013
    Applicant: SHANGHAI HUALI MICROELECTRONICS CORPORATION
    Inventors: Fang WEI, Chenming ZHANG
  • Publication number: 20080274501
    Abstract: The present invention provides a rapid and relatively simple process for purification of acidic proteins expressed in tobacco cells. The process comprises three main purification steps: precipitation with polyethyleneimine, column chromatography with a hydrophobic interaction resin, and column chromatography with hydroxyapatite. The process provides pure or essentially pure protein at a very high yield.
    Type: Application
    Filed: May 2, 2008
    Publication date: November 6, 2008
    Inventors: Chenming ZHANG, Chris Holler
  • Patent number: 6841658
    Abstract: The invention is directed to methods for purifying Troponin I, particularly recombinant Tropnin I produced in a bacterial expression system. Recombinant Tropnin I can be advantageously purified after reversibly protecting the free sulfhydryl groups, e.g., by forming sulfates. In a specific example, Tropnin I reacted with sodium tetrafhionate yielded sulfitolyzed Tropnin I, which was purified by chromatography on an anion exchanger, followed by hydrophobic interaction chromatography. Facile deprotection of the sulfhydryl groups yields a highly purified product ready for refolding.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: January 11, 2005
    Assignee: Akzo Nobel NV
    Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
  • Publication number: 20030138907
    Abstract: The invention is directed to methods for purifying Troponin I, particularly recombinant Troponin I produced in a bacterial expression system. Recombinant Troponin I can be advantageously purified after reversibly protecting the free sulfhydryl groups, e.g., by forming sulfates. In a specific example, Tropnin I reacted with sodium tetrafhionate yields sulfitolyzed Tropnin I, which was purified by chromatography on an anion exchanger, followed by hydrophobic interaction chromatography. Facile deprotection of the sulfhydryl groups yields a highly purified product ready for refolding.
    Type: Application
    Filed: November 4, 2002
    Publication date: July 24, 2003
    Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
  • Publication number: 20030105017
    Abstract: The invention is directed to methods for purifying Troponin I, particularly recombinant Tropnin I produced in a bacterial expression system. Recombinant Tropnin I can be advantageously purified after reversibly protecting the free sulfhydryl groups, e.g., by forming sulfates. In a specific example, Tropnin I reacted with sodium tetrafhionate yielded sulfitolyzed Tropnin I, which was purified by chromatography on an anion exchanger, followed by hydrophobic interaction chromatography. Facile deprotection of the sulfhydryl groups yields a highly purified product ready for refolding.
    Type: Application
    Filed: September 26, 2002
    Publication date: June 5, 2003
    Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
  • Publication number: 20020064835
    Abstract: The invention is directed to methods for purifying Troponin I, particularly recombinant Tropnin I produced in a bacterial expression system. Recombinant Tropnin I can be advantageously purified after reversibly protecting the free sulfhydryl groups, e.g., by forming sulfates. In a specific example, Tropnin I reacted with sodium tetrafhionate yielded sulfitolyzed Tropnin I, which was purified by chromatography on an anion exchanger, followed by hydrophobic interaction chromatography. Facile deprotection of the sulfhydryl groups yields a highly purified product ready for refolding.
    Type: Application
    Filed: July 10, 2001
    Publication date: May 30, 2002
    Applicant: Diosynth RTP, Inc.
    Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
  • Publication number: 20020055145
    Abstract: The invention is directed to methods for purifying Troponin I, particularly recombinant Tropnin I produced in a bacterial expression system. Recombinant Tropnin I can be advantageously purified after reversibly protecting the free sulfhydryl groups, e.g., by forming sulfates. In a specific example, Tropnin I reacted with sodium tetrafhionate yielded sulfitolyzed Tropnin I, which was purified by chromatography on an anion exchanger, followed by hydrophobic interaction chromatography. Facile deprotection of the sulfhydryl groups yields a highly purified product ready for refolding.
    Type: Application
    Filed: November 30, 2001
    Publication date: May 9, 2002
    Applicant: Diosynth RTP, Inc.
    Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang