Patents by Inventor Akemi Nagatani

Akemi Nagatani 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).

  • Multiple pulse series generating device and method applicable to random pulse series generating apparatus
    Patent number: 5680516
    Abstract: A linear feedback shift register comprises a plurality of flip-flop devices, wherein the linear shift register is constituted so as to provide a plurality of pseudo-random pulse series in parallel. A data providing device performs a calculation on the plurality of pseudo-random pulse series so as to provide a plurality of output pulse series in parallel, wherein each of the plurality of output pulse series has the pulse generating probability different from the pulse generating probability of each of the other pulse series of the plurality of output pulse series.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: October 21, 1997
    Assignee: Ricoh Company Ltd.
    Inventors: Yukio Kadowaki, Akemi Nagatani
  • Multiple pulse series generating device and method applicable to random pulse series generating apparatus
    Patent number: 5611021
    Abstract: A linear feedback shift register comprises a plurality of flip-flop devices, wherein the linear shift register is constituted so as to provide a plurality of pseudo-random pulse series in parallel. A data providing device performs a calculation on the plurality of pseudo-random pulse series so as to provide a plurality of output pulse series in parallel, wherein each of the plurality of output pulse series has the pulse generating probability different from the pulse generating probability of each of the other pulse series of the plurality of output pulse series.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: March 11, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Kadowaki, Akemi Nagatani