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).
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Patent number: 10439633Abstract: 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: GrantFiled: March 20, 2018Date of Patent: October 8, 2019Assignee: NXP B.V.Inventors: Lucien Johannes Breems, Muhammed Bolatkale, Chenming Zhang
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Patent number: 10407950Abstract: 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: GrantFiled: January 6, 2015Date of Patent: September 10, 2019Assignee: Mitsui Kinzoku Act CorporationInventors: Masakazu Akahori, Chenming Zhang
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Patent number: 10267069Abstract: 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: GrantFiled: November 12, 2014Date of Patent: April 23, 2019Assignee: Mitsui Kinzoku Act CorporationInventor: Chenming Zhang
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Publication number: 20180343013Abstract: 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: ApplicationFiled: March 20, 2018Publication date: November 29, 2018Inventors: Lucien Johannes BREEMS, Muhammed BOLATKALE, Chenming ZHANG
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Publication number: 20170204639Abstract: 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: ApplicationFiled: January 6, 2015Publication date: July 20, 2017Inventors: Masakazu AKAHORI, Chenming ZHANG
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Publication number: 20170138096Abstract: 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: ApplicationFiled: November 12, 2014Publication date: May 18, 2017Inventor: Chenming Zhang
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Publication number: 20160201363Abstract: 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: ApplicationFiled: January 6, 2015Publication date: July 14, 2016Applicant: MITSUI KINZOKU ACT CORPORATIONInventors: Masakazu AKAHORI, Chenming ZHANG
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Patent number: 8898598Abstract: 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: GrantFiled: December 13, 2013Date of Patent: November 25, 2014Assignee: Shanghai Huali Microelectronics CorporationInventors: Chenming Zhang, HsuSheng Chang, Fang Wei
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Patent number: 8434034Abstract: 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: GrantFiled: December 29, 2011Date of Patent: April 30, 2013Assignee: Shanghai Huali Microelectronics CorporationInventors: Fang Wei, Chenming Zhang
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Publication number: 20130067423Abstract: 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: ApplicationFiled: December 29, 2011Publication date: March 14, 2013Applicant: SHANGHAI HUALI MICROELECTRONICS CORPORATIONInventors: Fang WEI, Chenming ZHANG
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Publication number: 20080274501Abstract: 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: ApplicationFiled: May 2, 2008Publication date: November 6, 2008Inventors: Chenming ZHANG, Chris Holler
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Patent number: 6841658Abstract: 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: GrantFiled: November 30, 2001Date of Patent: January 11, 2005Assignee: Akzo Nobel NVInventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
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Publication number: 20030138907Abstract: 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: ApplicationFiled: November 4, 2002Publication date: July 24, 2003Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
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Publication number: 20030105017Abstract: 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: ApplicationFiled: September 26, 2002Publication date: June 5, 2003Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
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Publication number: 20020064835Abstract: 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: ApplicationFiled: July 10, 2001Publication date: May 30, 2002Applicant: Diosynth RTP, Inc.Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang
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Publication number: 20020055145Abstract: 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: ApplicationFiled: November 30, 2001Publication date: May 9, 2002Applicant: Diosynth RTP, Inc.Inventors: Gregory Conn, Brian Reardon, Xianfang Zeng, Chenming Zhang