Patents by Inventor Noriyuki Masunari

Noriyuki Masunari 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).

  • Optical disc reproduction apparatus
    Patent number: 8411544
    Abstract: An instantaneous jitter information detection section detects, based on first and second digital values indicating different polarities relative to a predetermined reference value, an instantaneous gradient value corresponding to a difference value between the first and second digital values, and an instantaneous deviation value corresponding to a difference value between an intermediate value between the first and second digital values and the reference value. An information conversion section converts, based on an inversely proportional conversion table, the instantaneous gradient value to an inversely proportional value. An arithmetic section detects an instantaneous variance value by multiplying the instantaneous deviation value and the inversely proportional value together, and squaring a value obtained by the multiplication, and detects an integrated value by accumulating the instantaneous variance value.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: April 2, 2013
    Assignee: Panasonic Corporation
    Inventors: Youichi Ogura, Noriyuki Masunari, Yorikazu Takao
  • OPTICAL DISC REPRODUCTION APPARATUS
    Publication number: 20120026850
    Abstract: An instantaneous jitter information detection section detects, based on first and second digital values indicating different polarities relative to a predetermined reference value, an instantaneous gradient value corresponding to a difference value between the first and second digital values, and an instantaneous deviation value corresponding to a difference value between an intermediate value between the first and second digital values and the reference value. An information conversion section converts, based on an inversely proportional conversion table, the instantaneous gradient value to an inversely proportional value. An arithmetic section detects an instantaneous variance value by multiplying the instantaneous deviation value and the inversely proportional value together, and squaring a value obtained by the multiplication, and detects an integrated value by accumulating the instantaneous variance value.
    Type: Application
    Filed: October 3, 2011
    Publication date: February 2, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Youichi Ogura, Noriyuki Masunari, Yorikazu Takao