Patents by Inventor Chia Hui Yu

Chia Hui Yu 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).

  • Publication number: 20230062017
    Abstract: A feed dog device of a sewing machine includes a driving unit, a needle plate unit, a feed dog unit, an up-down transmitting unit, a horizontal transmitting unit and a direction adjusting unit. The direction adjusting unit includes a stepper motor with a variable rotational speed controlled in accordance with a speed of the driving shaft of the driving unit, and a linkage mechanism actuatable by the stepper motor to be moved to different positions so as to interfere with a horizontal reciprocating motion by the horizontal transmitting unit such that the horizontal reciprocating motion cooperates with the up-down reciprocating motion by the up-down transmitting unit to bring the feed dog unit into performing a variable moving course.
    Type: Application
    Filed: December 21, 2021
    Publication date: March 2, 2023
    Applicant: ZENG HSING INDUSTRIAL CO., LTD.
    Inventors: Ching-Lin HUANG, Su-Mei LIN, Chih-Hsiao CHENG, Chia-Hui YU
  • Patent number: 11505529
    Abstract: A series of 8-phenyl-isoquinoline derivatives (I) exhibit high binding affinity to 5-HT7 receptor (5-HT7R) and demonstrate potent antinociceptive activity in two animal models for Irritable Bowel Syndrome (IBS) by intraperitoneal injection (i.p.) or by oral administration (p.o.). These 5-HT7 receptor antagonists are a new class of therapeutic agents for the treatment of IBS.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: November 22, 2022
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventor: Linda Chia-Hui Yu
  • Patent number: 11251799
    Abstract: A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and calibrating an electrical parameter of the phase-locked loop circuit according to a variation of a time difference between the first signal and the third signal.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: February 15, 2022
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Chia-Hui Yu, Wun-Jian Su, Yu-Jung Chiu, Chiao-Chieh Yang
  • Patent number: 11139816
    Abstract: A clock and data recovery circuit is disclosed. The clock and data recovery circuit includes a phase detection circuit, a first voting circuit, a low-pass filtering circuit and a phase interpolation circuit. The phase detection circuit is configured to receive a first signal and a clock signal and generate a phase signal. The first voting circuit is configured to charge at least one capacitance component according to the phase signal and generate a first voting signal according to a charging result. The low-pass filtering circuit is configured to generate a phase control signal according to the first voting signal. The phase interpolation circuit is configured to generate the clock signal according to the phase control signal.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 5, 2021
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Jen-Chu Wu, Po-Min Cheng, Wun-Jian Su, Chia-Hui Yu
  • Publication number: 20210273642
    Abstract: A clock and data recovery circuit is disclosed. The clock and data recovery circuit includes a phase detection circuit, a first voting circuit, a low-pass filtering circuit and a phase interpolation circuit. The phase detection circuit is configured to receive a first signal and a clock signal and generate a phase signal. The first voting circuit is configured to charge at least one capacitance component according to the phase signal and generate a first voting signal according to a charging result. The low-pass filtering circuit is configured to generate a phase control signal according to the first voting signal. The phase interpolation circuit is configured to generate the clock signal according to the phase control signal.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 2, 2021
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Jen-Chu Wu, Po-Min Cheng, Wun-Jian Su, Chia-Hui Yu
  • Publication number: 20210203334
    Abstract: A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and calibrating an electrical parameter of the phase-locked loop circuit according to a variation of a time difference between the first signal and the third signal.
    Type: Application
    Filed: February 17, 2020
    Publication date: July 1, 2021
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Chia-Hui Yu, Wun-Jian Su, Yu-Jung Chiu, Chiao-Chieh Yang
  • Patent number: 10883212
    Abstract: A position indicating circuit includes: first and second input terminals for respectively receiving first and second voltages; an output terminal; a first resistor; and a second resistor having a first terminal coupled to the first input terminal through the first resistor, a second terminal coupled to the second input terminal, and a third terminal coupled to the output terminal. The second resistor is used to be actuated by a pedal of a foot controller of a sewing machine such that a voltage at the output terminal has a magnitude related to a position of the pedal. A detecting system that uses the position indicating circuit and that can determine whether the foot controller is coupled to a main body of the sewing machine is also provided.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 5, 2021
    Assignee: ZENG HSING INDUSTRIAL CO., LTD.
    Inventors: Wen-Fan Chang, Chia-Hui Yu
  • Publication number: 20200248349
    Abstract: A position indicating circuit includes: first and second input terminals for respectively receiving first and second voltages; an output terminal; a first resistor; and a second resistor having a first terminal coupled to the first input terminal through the first resistor, a second terminal coupled to the second input terminal, and a third terminal coupled to the output terminal. The second resistor is used to be actuated by a pedal of a foot controller of a sewing machine such that a voltage at the output terminal has a magnitude related to a position of the pedal. A detecting system that uses the position indicating circuit and that can determine whether the foot controller is coupled to a main body of the sewing machine is also provided.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 6, 2020
    Inventors: Wen-Fan Chang, Chia-Hui Yu
  • Publication number: 20200071274
    Abstract: A series of 8-phenyl-isoquinoline derivatives (I) exhibit high binding affinity to 5-HT7 receptor (5-HT7R) and demonstrate potent antinociceptive activity in two animal models for Irritable Bowel Syndrome (IBS) by intraperitoneal injection (i.p.) or by oral administration (p.o.). These 5-HT7 receptor antagonists are a new class of therapeutic agents for the treatment of IBS.
    Type: Application
    Filed: March 2, 2018
    Publication date: March 5, 2020
    Inventor: Linda Chia-Hui Yu
  • Patent number: 10523223
    Abstract: A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and detecting the third signal to calibrate an electronic parameter of the phase-locked loop circuit.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: December 31, 2019
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Chia-Hui Yu, Wei-Yung Chen
  • Patent number: 10435830
    Abstract: A buttonhole sewing guiding device of a sewing machine includes a buttonhole presser foot unit disposed on a presser foot holder of the sewing machine, and a sensing unit disposed on the buttonhole presser foot unit. A presser frame of the foot unit is movable relative to a sliding member between first and second sewing positions set in accordance with an operating distance that corresponds to a size of a button to allow first and second triggering members to initiate a sensing module for controlling operation of a sewing needle.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: October 8, 2019
    Assignee: ZENG HSING INDUSTRIAL CO., LTD.
    Inventor: Chia-Hui Yu
  • Publication number: 20190288700
    Abstract: A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and detecting the third signal to calibrate an electronic parameter of the phase-locked loop circuit.
    Type: Application
    Filed: May 8, 2018
    Publication date: September 19, 2019
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Chia-Hui Yu, Wei-Yung Chen
  • Publication number: 20190055685
    Abstract: A buttonhole sewing guiding device of a sewing machine includes a buttonhole presser foot unit disposed on a presser foot holder of the sewing machine, and a sensing unit disposed on the buttonhole presser foot unit. A presser frame of the foot unit is movable relative to a sliding member between first and second sewing positions set in accordance with an operating distance that corresponds to a size of a button to allow first and second triggering members to initiate a sensing module for controlling operation of a sewing needle.
    Type: Application
    Filed: January 11, 2018
    Publication date: February 21, 2019
    Applicant: ZENG HSING INDUSTRIAL CO., LTD.
    Inventor: Chia-Hui YU
  • Publication number: 20140049728
    Abstract: The present invention relates to a light guide plate, a light-emitting unit having the light guide plate and a liquid crystal display device having the light-emitting unit. The light guide plate includes a light guide layer that has dot patterns. The dot patterns are formed by coating and drying a pattern-forming ink composition on a bottom surface. The pattern-forming ink composition includes an acrylate-based resin having a saturated alicyclic group (A) and a solvent (B). By utilizing the aforementioned light guide plate, the liquid crystal display device with low color difference can be fabricated.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 20, 2014
    Applicant: CHI MEI CORPORATION
    Inventors: Chih-Hung LIN, Chia-Hui YU
  • Publication number: 20140016063
    Abstract: The present invention relates to a light guide plate, a light-emitting unit having the light guide plate and a liquid crystal display (LCD) device having the light-emitting unit. The light guide plate includes a pattern-forming ink composition that is coated and dried on a bottom surface of the light guide plate, so as to form dot patterns as a light guide layer. The pattern-forming ink composition includes an acrylate-based resin (A), a yellow pigment (B), a filling material (C) and a solvent (D). A LCD device including the aforementioned light guide plate can achieve the requirements of high brightness and low color temperature.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 16, 2014
    Inventors: Chih-Hung LIN, Chia-Hui YU
  • Publication number: 20130335645
    Abstract: A photosensitive resin composition includes (A) a conjugated diene polymer having a (meth)acryloyl group, (B) a compound having at least one ethylenically unsaturated group, (C) a photo-initiator, and (D) a compound represented by formula (I): where R1 and R2 independently represent a C1-C20 alkyl group or a C1-C20 aryl group, R3 represents hydrogen or methyl, and a is an integer ranging from 2 to 20.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 19, 2013
    Inventors: Chia-Hui YU, Chih-Hung LIN
  • Publication number: 20130021543
    Abstract: A photosensitive resin composition includes: a copolymer obtained by subjecting a conjugated diene polymer having a (meth)acryloyl group, a conjugated diene monomer, and a (meth)acrylic acid monomer to copolymerization; a compound having at least one ethylenically unsaturated group; and a photoinitiator. The copolymer contains 60 wt % to 99 wt % of a copolymer fraction having a molecular weight ranging from 30,000 to 900,000, and 1 wt % to 22 wt % of a copolymer fraction having a molecular weight ranging from 1,000 to 10,000 when calculated from an integral molecular weight distribution curve obtained by plotting cumulative weight percentage versus molecular weight falling within a range between 1,000 and 1,000,000 measured by gel permeation chromatography.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 24, 2013
    Applicant: CHI MEI CORPORATION
    Inventors: Chih-Hung LIN, Chia-Hui YU
  • Publication number: 20130012669
    Abstract: A thermosetting resin composition includes an epoxy resin, a polyetheramine curing agent, and an epoxy silane coupling agent. The polyetheramine curing agent is in an amount less than or equal to 10 parts by weight and the epoxy silane coupling agent is in an amount more than or equal to 10 parts by weight based on 100 parts by weight of the epoxy resin.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 10, 2013
    Inventors: Chih-Hung LIN, Chia-Hui Yu
  • Publication number: 20120002138
    Abstract: The present invention relates to a pattern forming ink composition, and more particularly, to a pattern forming ink composition having high yellowing resistance, wherein the pattern forming ink composition including an acrylate-based resin having a ring structure (A), a compound having at least one ethylenically unsaturated double bond (B) and a photoinitiator (C). The pattern forming ink is printed as a reflection pattern on a light guide plate to scatter and reflect the light incident to the reflection pattern towards a light emitting surface of the light guide plate.
    Type: Application
    Filed: June 24, 2011
    Publication date: January 5, 2012
    Inventors: Chih-Hung Lin, Chia Hui Yu
  • Publication number: 20090287077
    Abstract: A system for detecting function of an intestinal barrier in a subject is provided, which includes: a contrast agent for being administered directly to an intestinal lumen of the subject, allowing a detecting device to detect in vivo or in vitro the signal indication produced by the contrast agent in the tested targets such as abdominal organs or a blood sample; and a determining device for determining intensity of the signal indication produced by the contrast agent in the tested targets after the administration of the contrast agent so as for the intensity of the signal indication after the administration of the contrast agent to indicate damage of the intestinal barrier in the subject. The present invention also provides a method of detecting function of the intestinal barrier in a subject by using the system of the present invention.
    Type: Application
    Filed: February 19, 2009
    Publication date: November 19, 2009
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Linda Chia-Hui Yu, Jong-Kai Hsiao