Patents by Inventor Noriyuki Higashi

Noriyuki Higashi 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).

  • Noncontact tag, control method therefor and noncontact ID identification system
    Patent number: 7392947
    Abstract: The present invention is to provide a noncontact tag, comprising: a clock extraction unit for extracting a clock from a received carrier wave; a demodulation unit for outputting a demodulated signal comprising a logic signal whose logic state changes responding to each of a non-modulation period and modulation period of the carrier wave; a division unit for generating a division clock from the clock input from the clock extraction unit and also restraining the division clock from being output according to a logic state of the demodulated signal; and a decoding unit for decoding information included in the carrier wave by using a value of counter driven by the division clock.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: July 1, 2008
    Assignee: Fujitsu Limited
    Inventor: Noriyuki Higashi
  • Noncontact tag, control method therefor and noncontact ID identification system
    Publication number: 20070075143
    Abstract: The present invention is to provide a noncontact tag, comprising: a clock extraction unit for extracting a clock from a received carrier wave; a demodulation unit for outputting a demodulated signal comprising a logic signal whose logic state changes responding to each of a non-modulation period and modulation period of the carrier wave; a division unit for generating a division clock from the clock input from the clock extraction unit and also restraining the division clock from being output according to a logic state of the demodulated signal; and a decoding unit for decoding information included in the carrier wave by using a value of counter driven by the division clock.
    Type: Application
    Filed: February 24, 2006
    Publication date: April 5, 2007
    Inventor: Noriyuki Higashi