Patents by Inventor Yoshiichi Tanaka

Yoshiichi Tanaka 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).

  • Multi-channel audio reproducing device
    Patent number: 6714825
    Abstract: A multi-channel audio reproducing device of a type converting, from digital to analog, multi-channel audio data whose channels are different in sampling frequency by using DACs fewer in number than the channels, and reproducing the same. A decoding part executes sampling frequency conversion with respect to the audio data in at least one channel so that a sampling frequency thereof coincides with that of the other channels. A DAC part converts, from digital to analog in a time sharing manner, the audio data in the plurality of channels equalized in sampling frequency.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: March 30, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Yoshiichi Tanaka