Patents by Inventor Wen-Chien Chang

Wen-Chien 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: 20220126423
    Abstract: A wrench is provided, including: a connection seat, including two seat bodies and a connection portion, the two seat bodies respectively including two first pivot portions; and a driving member, movably connected with the connection seat, the driving member including two second pivot portions, and the two second pivot portions being rotatably connected with the two first pivot portions.
    Type: Application
    Filed: April 30, 2021
    Publication date: April 28, 2022
    Inventor: WEN-CHIEN CHANG
  • Publication number: 20210344828
    Abstract: A video signal conversion method includes: receiving an input signal from a video source; extracting an image metadata from the input signal; determining whether the input signal corresponds to a high dynamic range (HDR) imaging format according to at least one format information of the image metadata and determining whether a video receiver supports the high dynamic range imaging format; in response to the input signal corresponding to the high dynamic range imaging format and the video receiver being not support the high dynamic range imaging format, generating a conversion command; receiving, by a video processor, the conversion command; converting, by the video processor, the input signal into an output signal corresponding to a standard dynamic range (SDR) imaging format according to the conversion command; sending, by the video processor, the output signal to the video receiver; and receiving by the video receiver, the output signal in SDR imaging format.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Inventors: Wen-Chien CHANG, Yen-Cheng YAO
  • Patent number: 11095828
    Abstract: A video signal conversion device includes a front end interface, a rear end interface, a video detector and a video processor. The front end interface is coupled to a video source to receive an input signal. The rear end interface is coupled to a video receiver. The video detector determines whether the input signal corresponds to HDR imaging format. The video detector generates a conversion command in response to the input signal corresponding to HDR imaging format. The video processor is coupled to the front end interface, the rear end interface and the video detector. When the video processor receives the conversion command, the video processor converts the input signal into an output signal with SDR imaging format. The video processor sends the output signal to the video receiver via the rear end interface.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 17, 2021
    Assignee: AVerMedia TECHNOLOGIES, INC.
    Inventors: Wen-Chien Chang, Yen-Cheng Yao
  • Publication number: 20190335082
    Abstract: A video signal conversion device includes a front end interface, a rear end interface, a video detector and a video processor. The front end interface is coupled to a video source to receive an input signal. The rear end interface is coupled to a video receiver. The video detector determines whether the input signal corresponds to HDR imaging format. The video detector generates a conversion command in response to the input signal corresponding to HDR imaging format. The video processor is coupled to the front end interface, the rear end interface and the video detector. When the video processor receives the conversion command, the video processor converts the input signal into an output signal with SDR imaging format. The video processor sends the output signal to the video receiver via the rear end interface.
    Type: Application
    Filed: April 2, 2019
    Publication date: October 31, 2019
    Inventors: Wen-Chien CHANG, Yen-Cheng YAO
  • Patent number: 9941239
    Abstract: In a process, at least one circuit element is formed in a substrate. A conductive layer is formed over the substrate and in electrical contact with the at least one circuit element. Electrostatic charges are discharged from the substrate via the conductive layer.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: April 10, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Chien Chang, Hsiang-Tai Lu, Dai-Jang Chen, Chih-Hsien Lin
  • Publication number: 20170053890
    Abstract: In a process, at least one circuit element is formed in a substrate. A conductive layer is formed over the substrate and in electrical contact with the at least one circuit element. Electrostatic charges are discharged from the substrate via the conductive layer.
    Type: Application
    Filed: November 7, 2016
    Publication date: February 23, 2017
    Inventors: Wen-Chien CHANG, Hsiang-Tai LU, Dai-Jang CHEN, Chih-Hsien LIN
  • Patent number: 9491840
    Abstract: In a process, at least one circuit element is formed in a substrate. A conductive layer is formed over the substrate and in electrical contact with the at least one circuit element. Electrostatic charges are discharged from the substrate via the conductive layer.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 8, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wen-Chien Chang, Hsiang-Tai Lu, Dai-Jang Chen, Chih-Hsien Lin
  • Publication number: 20150079735
    Abstract: In a process, at least one circuit element is formed in a substrate. A conductive layer is formed over the substrate and in electrical contact with the at least one circuit element. Electrostatic charges are discharged from the substrate via the conductive layer.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wen-Chien CHANG, Hsiang-Tai LU, Dai-Jang CHEN, Chih-Hsien LIN
  • Patent number: 7209179
    Abstract: A video signal processing apparatus and a computer system integrated with the video signal processing apparatus are disclosed. The video signal processing apparatus has a tuner, a video processor, a non-interlaced signal processing unit, a microprocessor, and a computer signal converter. In the video signal processing apparatus, the display can be instantly turned on and the video signal can be recorded in the storage media of a computer, and the video signal recorded in the storage media can be displayed on the display. While watching the video signal on the display, a user can execute applications in the computer simultaneously. The video signal processing apparatus further provides picture-in-picture feature by adding another set of tuner and video processor. The video signal processing apparatus can be integrated with a display or a computer, and can also be used as an external-enclosure video signal processing apparatus.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: April 24, 2007
    Assignee: Avermedia Technologies, Inc.
    Inventors: Ming-Hou Dai, Wen-Chien Chang, Jui-Hsiang Yang
  • Publication number: 20060215060
    Abstract: A video processing apparatus is described. The video processing apparatus includes a video decoder, a deinterlacer, a PIP (picture-in-picture) module and a PIP characteristic controller. The video decoder receives a video signal and decodes the video signal into a digital video signal. The deinterlacer receives the digital video signal and generates a non-interlacing signal. The PIP module overlaps the non-interlacing signal, in response to a PIP characteristic signal, with a screen signal and generates a PIP video that can be played by a display. The PIP characteristic controller generates the PIP characteristic signal in response to a PIP command. The PIP command comes from a computer. The deinterlacer and the PIP module are realized by hardware.
    Type: Application
    Filed: July 22, 2005
    Publication date: September 28, 2006
    Inventors: Ming-Hou Dai, Wen-Chien Chang, Jui-Hsiang Yang
  • Publication number: 20050046745
    Abstract: A video signal processing apparatus and a computer system integrated with the video signal processing apparatus are disclosed. The video signal processing apparatus has a tuner, a video processor, a non-interlaced signal processing unit, a microprocessor, and a computer signal converter. In the video signal processing apparatus, the display can be instantly turned on and the video signal can be recorded in the storage media of a computer, and the video signal recorded in the storage media can be displayed on the display. While watching the video signal on the display, a user can execute applications in the computer simultaneously. The video signal processing apparatus further provides picture-in-picture feature by adding another set of tuner and video processor. The video signal processing apparatus can be integrated with a display or a computer, and can also be used as an external-enclosure video signal processing apparatus.
    Type: Application
    Filed: October 9, 2003
    Publication date: March 3, 2005
    Inventors: Ming-Hou Dai, Wen-Chien Chang, Jui-Hsiang Yang