Patents by Inventor Yu-Huei Cheng

Yu-Huei Cheng 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: 7461280
    Abstract: A recall circuit for quitting a power saving mode is disclosed, which is applicable to a television functioning as the display screen of a computer, which mainly uses a microprocessor to turn on the power of all chips in the television, monitors the communication via I2C pins, and detects which chips require operations without the use of a bi-channel analog mixer and segregator to shift the television from the power saving mode to a use mode.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: December 2, 2008
    Assignee: Tatung Co., Ltd.
    Inventors: Yu-Huei Cheng, Tzu-Huei Lee
  • Publication number: 20070152724
    Abstract: An electrical device with a reset circuit providing a reset signal during power changing status is disclosed. The present invention comprises a power circuit, a micro control unit, a first reset circuit, a microprocessor, and a second reset circuit. The micro control unit has a reset pin and as it receives voltage from the power circuit, the micro control unit performs a reset operation. The first reset circuit is connected to the power circuit for providing a level signal. The microprocessor has a reset pin and is connected to the power circuit, and as the reset pin receives a level signal the microprocessor performs the reset operation. The second reset circuit is connected to the power circuit and has a reset pin of microprocessor for providing a level signal.
    Type: Application
    Filed: May 22, 2006
    Publication date: July 5, 2007
    Applicant: Tatung Company
    Inventors: Kuo-Ting Chiu, Yu-Huei Cheng, Tzu-Hui Lee
  • Publication number: 20070154026
    Abstract: A mute circuit for eliminating noise during power off and an electronic device using the mute circuit are provided. The electronic device includes a power circuit, an audio processing circuit, a speaker, a micro control unit, and a mute circuit. The audio processing circuit is electrically connected to the speaker, whereby when the power circuit is on, the audio processing circuit works in a normal mode and outputs an audio signal to the speaker. When the power circuit is off, the mute circuit generates a trigger signal to a mute pin of the audio processing circuit for enabling the audio processing circuit to function in a mute mode so as to disable the speaker, and thus the speaker does not output sound during power off.
    Type: Application
    Filed: May 24, 2006
    Publication date: July 5, 2007
    Applicant: Tatung Company
    Inventors: Kuo-Ting Chiu, Yu-Huei Cheng, Tzu-Hui Lee
  • Publication number: 20070121016
    Abstract: An audio/video switch circuit using the I2C bus includes a video decoder, an audio integrated circuit, an audio/video switch-unit and an MCU, in which the MCU is electrically connected to the audio/video switch unit through an I2C bus, allowing the control signals outputted by the MCU to be sent out to the audio/video switch unit through the I2C bus for controlling the switch of the audio/video switch unit, such that one of the input audio/video signals is outputted to the video decoder and the audio integrated circuit respectively through the switch of the audio/video switch unit.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 31, 2007
    Applicant: Tatung Company
    Inventors: Kuo-Ting Chiu, Yu-Huei Cheng, Tzu-Huei Lee
  • Publication number: 20060123255
    Abstract: A recall circuit for quitting a power saving mode is disclosed, which is applicable to a television functioning as the display screen of a computer, which mainly uses a microprocessor to turn on the power of all chips in the television, monitors the communication via I2C pins, and detects which chips require operations without the use of a bi-channel analog mixer and segregator to shift the television from the power saving mode to a use mode.
    Type: Application
    Filed: November 9, 2005
    Publication date: June 8, 2006
    Applicant: TATUNG CO., LTD.
    Inventors: Yu-Huei Cheng, Tzu-Huei Lee
  • Patent number: 6500770
    Abstract: A method for forming a multi-layer protective coating over a porous low-k (dielectric constant) material for use in a multiple layer semiconductor device including providing a semiconductor process wafer including a process surface said process surface including an uppermost surface of a low-k porous material layer said low-k porous material layer including a plurality of openings penetrating the process surface; and, spin coating a flowable dielectric onto the process surface to form a plurality of protective sealing layers such that the porosity of the low-k porous material layer is substantially maintained and the plurality of protective sealing layers are formed such that the migration of water (H2O) is substantially blocked through at least an uppermost protective sealing layer surface.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: December 31, 2002
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd
    Inventors: Yu-Huei Cheng, Chen-Hua Yu