Patents by Inventor Kouji Kanamori

Kouji Kanamori 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).

  • A/D converter apparatus and D/A converter apparatus including a digital filter
    Patent number: 7034731
    Abstract: An A/D converter apparatus for converting an analog signal output from an anti-aliasing filter into a digital signal, a sinc filter for removing a frequency component corresponding to an aliasing noise generated by down-sampling, a first decimator for down-sampling a signal output from the sinc filter, a low pass filter for removing a frequency component corresponding to an aliasing noise generated by down-sampling, a second decimator for down-sampling a signal output from the low pass filter, and a high pass filter for removing a dc component from a signal output from the second decimator are disclosed.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: April 25, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasutaka Uramoto, Kouji Kanamori
  • A/D converter apparatus and D/A converter apparatus
    Publication number: 20050128110
    Abstract: An A/D converter apparatus for converting an analog signal output from an anti-aliasing filter into a digital signal, a sinc filter for removing a frequency component corresponding to an aliasing noise generated by down-sampling, a first decimator for down-sampling a signal output from the sinc filter, a low pass filter for removing a frequency component corresponding to an aliasing noise generated by down-sampling, a second decimator for down-sampling a signal output from the low pass filter, and a high pass filter for removing a dc component from a signal output from the second decimator are disclosed.
    Type: Application
    Filed: December 10, 2004
    Publication date: June 16, 2005
    Inventors: Yasutaka Uramoto, Kouji Kanamori