Patents by Inventor Kazuhiro Nagura

Kazuhiro Nagura 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).

  • Patent number: 5684878
    Abstract: The VCR (video cassette recorder) inserts an index signal into a video signal at the time of recording, when information which will later become inaccurate at the time of playback is included in the video signal. The index signal prevents the VCR from using the inaccurate data at the time of playback. Further, tile VCR displays a message automatically when the broadcast signal selected by the user has no second audio signal, thereby allowing the user to grasp the reason why the receiver is producing no sound. Further, the main audio signal may be selected automatically, instead of the second audio signal, allowing the VCR to produce the sound.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: November 4, 1997
    Assignee: Sony Corporation
    Inventor: Kazuhiro Nagura
  • Patent number: 5661526
    Abstract: The video cassette recorder selects channels in succession, determines the presence or absence of additional information included in the broadcast signal for the selected channel, and stores the selected channel regarded as a reception channel for the additional information when detecting the presence of the additional information in the broadcast signal. Further, the recorder extracts station identification information included in the broadcast signal for the selected channel, provides a VCR Plus guide channel corresponding to the station identified by the station identification information, and stores in its memory the relationship between the selected channel and the VCR Plus guide channel. Moreover, the recorder compares a remaining recording time available with the program continuation time extracted from the broadcast signal, and controls a recording speed mode appropriately based on the comparison.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: August 26, 1997
    Assignee: Sony Corporation
    Inventors: Kenji Hamamoto, Kazuhiro Nagura, Takamichi Yoshida, Tomoyuki Hanai
  • Patent number: 5612789
    Abstract: The VCR (video cassette recorder) inserts an index signal into a video signal at the time of recording, when information which will later become inaccurate at the time of playback is included in the video signal. The index signal prevents the VCR from using the inaccurate data at the time of playback. Further, the VCR displays a message automatically when the broadcast signal selected by the user has no second audio signal, thereby allowing the user to grasp the reason why the receiver is producing no sound. Further, the main audio signal may be selected automatically, instead of the second audio signal, allowing the VCR to produce the sound.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: March 18, 1997
    Assignee: Sony Corporation
    Inventor: Kazuhiro Nagura