Patents by Inventor Arata Kinjo

Arata Kinjo 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).

  • Semiconductor integrated circuit, liquid crystal drive device, and liquid crystal display system
    Patent number: 8094104
    Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: January 10, 2012
    Assignees: Hitachi ULSI Systems Co., Ltd., Renesas Electronics Corporation
    Inventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo
  • Semiconductor integrated circuit, liquid crystal drive device, and liquid crystal display system
    Patent number: 7405732
    Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: July 29, 2008
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo
  • SEMICONDUCTOR INTEGRATED CIRCUIT, LIQUID CRYSTAL DRIVE DEVICE, AND LIQUID CRYSTAL DISPLAY SYSTEM
    Publication number: 20070279404
    Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
    Type: Application
    Filed: August 3, 2007
    Publication date: December 6, 2007
    Inventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo
  • SEMICONDUCTOR INTEGRATED CIRCUIT, LIQUID CRYSTAL DRIVE DEVICE, AND LIQUID CRYSTAL DISPLAY SYSTEM
    Publication number: 20070279357
    Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
    Type: Application
    Filed: August 3, 2007
    Publication date: December 6, 2007
    Inventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo
  • SEMICONDUCTOR INTEGRATED CIRCUIT, LIQUID CRYSTAL DRIVE DEVICE, AND LIQUID CRYSTAL DISPLAY SYSTEM
    Publication number: 20070279358
    Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
    Type: Application
    Filed: August 3, 2007
    Publication date: December 6, 2007
    Inventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo
  • Semiconductor integrated circuit, liquid crystal drive device, and liquid crystal display system
    Publication number: 20050146493
    Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.
    Type: Application
    Filed: October 25, 2001
    Publication date: July 7, 2005
    Inventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo