Patents by Inventor Wen Hsu Chang

Wen Hsu Chang 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: 20240078370
    Abstract: Various techniques are disclosed for automatically generating sub-cells for a non-final layout of an analog integrated circuit. Device specifications and partition information for the analog integrated circuit is received. Based on the device specifications and the partition information, first cut locations for a first set of cuts to be made along a first direction of a non-final layout of the analog integrated circuit and second cut locations for a second set of cuts to be made along a second direction in the non-final layout are determined. The first set of cuts are made in the non-final layout at the cut locations to produce a temporary layout. The second set of cuts are made in the temporary layout at the cut locations to produce a plurality of sub-cells.
    Type: Application
    Filed: August 10, 2023
    Publication date: March 7, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Chiang Chang, Wen-Shen Chou, Yung-Chow Peng, Yung-Hsu Chuang, Yu-Tao Yang, Bindu Madhavi Kasina
  • Patent number: 10004853
    Abstract: A retractable safety syringe includes a retractable needle hub holding a needle and having a first guiding means; and a hollow barrel having a second guiding means set correspondingly to the first guiding means; and a collapsible plunger comprising of a first plunger element having a protrusion releasably coupled with a second plunger element having a longitudinal slot with a pinched zone to curb the movement of said protrusion; and a spring disposed between the needle hub and hollow barrel and acts between the needle hub and the hollow barrel. The uncoupling of the collapsible plunger triggers the retraction mechanism to enable the needle hub to retract into the barrel by the decompression force of a spring. The reliability of retraction is further improved by a longitudinal slot and a protrusion to facilitate the retreating of the collapsible plunger in an orderly way.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: June 26, 2018
    Assignee: BENCHA INTERNATIONAL GROUP INC.
    Inventors: Lee Lin Lee, Wen-Hsu Chang
  • Publication number: 20140180216
    Abstract: A retractable safety syringe includes a retractable needle hub holding a needle and having a first guiding means; and a hollow barrel having a second guiding means set correspondingly to the first guiding means; and a collapsible plunger comprising of a first plunger element having a protrusion releasably coupled with a second plunger element having a longitudinal slot with a pinched zone to curb the movement of said protrusion; and a spring disposed between the needle hub and hollow barrel and acts between the needle hub and the hollow barrel. The uncoupling of the collapsible plunger triggers the retraction mechanism to enable the needle hub to retract into the barrel by the decompression force of a spring. The reliability of retraction is further improved by a longitudinal slot and a protrusion to facilitate the retreating of the collapsible plunger in an orderly way.
    Type: Application
    Filed: November 15, 2013
    Publication date: June 26, 2014
    Applicant: BENCHA INTERNATIONAL GROUP INC.
    Inventors: Lee LIN LEE, Wen-Hsu CHANG
  • Patent number: 8704580
    Abstract: The present invention discloses a circuit sharing time delay integrator structure. The major composing elements of this circuit sharing time delay integrator structure are: a sharing circuit, a first control block, a plurality of second control blocks and a timing set generated by a timing generator circuit. The sharing circuit can be an OP-AMP, an active load, or any of a variety of combinations used in signal accumulation applications. With the implementation of the present invention to applications of signal accumulations, the necessity of an adder circuitry is eliminated, the overall circuitry and hence the total amount of transistors required when producing the integrated circuit is massively reduced, and thus a great cost reduction and better timing and power efficiency can all be thereof achieved.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: April 22, 2014
    Assignee: National Applied Research Laboratories
    Inventors: Chin-Fong Chiu, Hann-Huei Tsai, Wen-Hsu Chang, Chih-Cheng Hsieh, Kuo-Wei Cheng
  • Publication number: 20130335132
    Abstract: The present invention discloses a circuit sharing time delay integrator structure. The major composing elements of this circuit sharing time delay integrator structure are: a sharing circuit, a first control block, a plurality of second control blocks and a timing set generated by a timing generator circuit. The sharing circuit can be an OP-AMP, an active load, or any of a variety of combinations used in signal accumulation applications. With the implementation of the present invention to applications of signal accumulations, the necessity of an adder circuitry is eliminated, the overall circuitry and hence the total amount of transistors required when producing the integrated circuit is massively reduced, and thus a great cost reduction and better timing and power efficiency can all be thereof achieved.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 19, 2013
    Applicant: National Applied Research Laboratories
    Inventors: Chin-Fong CHIU, Hann-Huei TSAI, Wen-Hsu CHANG, Chih-Cheng HSIEH, Kuo-Wei CHENG
  • Patent number: 7547853
    Abstract: A control switch connection structure is proposed, in which a control switch of an electronic device is set up on a frame, and two conducting strips are adhered onto the frame. The control switch is electrically connected to a circuit board via these two conducting strips. The setup steps of flexible printed circuit board and flat flexible cable of the control switch in the prior art can thus be saved to lower the manufacturing cost and shorten the manufacturing process of electronic device.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: June 16, 2009
    Assignee: Altek Corporation
    Inventors: Tzu Chih Lin, Wen Hsu Chang
  • Publication number: 20030221539
    Abstract: A friction-resisting noise-eliminating rod member mounting arrangement in which two friction bushings are respectively fitted into a respective recessed round hole in each of the two ends of a rod member, which controls the opening/closing of sound holes of the wind instrument, and coupled to a respective screw rod in each of two supports adapted to support the rod member on the body of the wind instrument.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventor: Wen-Hsu Chang