Patents by Inventor Yasuhiro Mochida

Yasuhiro Mochida 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).

  • Publication number: 20210329278
    Abstract: The present disclosure aims to provide a method for detecting a GOP boundary of an encoded bit stream of each layer and associating GOPs of the layers for hierarchical transmission in a video transmission device that transmits a hierarchically encoded bit stream. The present disclosure provides a video transmission device and a video transmission method that detect a GOP head access unit in a base layer of a hierarchically encoded bit stream by analyzing the base layer and detect a head access unit of an enhancement layer of an identical GOP to that of the aforementioned access unit from a decoding time stamp of the access unit by using the relationship between a decoding time stamp of the base layer and a decoding time stamp of the enhancement layer.
    Type: Application
    Filed: August 19, 2019
    Publication date: October 21, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiro MOCHIDA, Takahiro YAMAGUCHI
  • Publication number: 20210289243
    Abstract: A video audio transmission system, transmission method, sending device, and reception device capable of avoiding buffer overflow and buffer depletion in a decoding device and realizing Group of Pictures (GOP) synchronization in encoding devices by eliminating clock deviation among devices. In the video audio transmission system, the sending devices supply clocks generated from common time point information to cameras as genlock signals. The reception devices supply clocks generated from the common time point information to the decoding devices as genlock signals. Therefore, clock deviation between the devices can be eliminated, and the buffer overflow and the buffer depletion in the decoding device can be avoided. Frame periods of video signals output by a plurality of dispersed cameras can be aligned, and reliable GOP synchronization can be realized by the encoding devices on a latter stage with respect to the cameras.
    Type: Application
    Filed: July 16, 2019
    Publication date: September 16, 2021
    Inventors: Yasuhiro Mochida, Takahiro Yamaguchi