Patents by Inventor Takashi Taga

Takashi Taga 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).

  • Audio signal output device in which optical signals are not output when a plug is not connected to an S/PDIF output terminal
    Patent number: 6973582
    Abstract: An audio signal output device is disclosed in which optical signals are not output when a plug is not connected to an S/PDIF output terminal. When a plug is not connected to the S/PDIF output terminal, a fitting metal part does not contact a detection pin, and a connection detection signal is therefore 12V. As a result, a PNP transistor and an n-channel MOS transistor are both OFF, a power supply voltage of 5 V is not supplied to a drive IC, and optical signals are not output.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: December 6, 2005
    Assignee: NEC Corporation
    Inventors: Atsuko Sugiura, Naoya Ishii, Takashi Taga, Toshiaki Uotani
  • Audio signal output device in which optical signals are not output when a plug is not connected to an S/PDIF output terminal
    Publication number: 20040025062
    Abstract: An audio signal output device is disclosed in which optical signals are not output when a plug is not connected to an S/PDIF output terminal. When a plug is not connected to the S/PDIF output terminal, a fitting metal part does not contact a detection pin, and a connection detection signal is therefore 12V. As a result, a PNP transistor and an n-channel MOS transistor are both OFF, a power supply voltage of 5 V is not supplied to a drive IC, and optical signals are not output.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 5, 2004
    Inventors: Atsuko Sugiura, Naoya Ishii, Takashi Taga, Toshiaki Uotani
  • Thinner structure for electronic devices, and provision of given space in electronic devices
    Publication number: 20030026188
    Abstract: An electronic device is arranged to be of a thinner structure and to provide a sufficient space required therein. The electronic device has a drive for driving a recording medium in the upper part thereof and incorporates a tray mechanism or a slot-in mechanism for inserting and removing the recording medium from the upper side of the drive.
    Type: Application
    Filed: July 26, 2002
    Publication date: February 6, 2003
    Applicant: NEC Corporation
    Inventors: Atsuko Sugiura, Naoya Ishii, Toshiaki Uotani, Takashi Taga, Yutaka Araki