Patents by Inventor Masayuki Kijima

Masayuki Kijima 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: 20070160347
    Abstract: A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 12, 2007
    Applicant: HITACHI, LTD.
    Inventors: Yukinobu TADA, Hideo NISHIJIMA, Kaneyuki OKAMOTO, Masayuki KIJIMA
  • Patent number: 7209631
    Abstract: A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: April 24, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yukinobu Tada, Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima
  • Patent number: 6504992
    Abstract: When a video signal reproduced by a helical scan type video signal reproducing apparatus is displayed on the screen of a liquid crystal matrix circuit, a change in brightness on the screen is eliminated in a mode for displaying a trick reproduced image such as a noiseless search image, a still image or the like with respect to a mode for displaying a normally reproduced image, thus providing the user with displayed images causing a less feeling of strangeness. During normal reproduction, where a video signal is continuously written into a liquid crystal display circuit, the brightness of the liquid crystal display circuit is controlled based on the value in a reference brightness register set by the user. During trick reproduction, where a video signal is discontinuously written into the liquid crystal display circuit, the liquid crystal display circuit is controlled to display an image relatively darker than the value in the reference brightness register.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 7, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kouji Minabe, Masayuki Kijima, Hideo Nishijima, Teruo Hoshi, Takashi Tsujio
  • Publication number: 20010046368
    Abstract: A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape.
    Type: Application
    Filed: May 22, 2001
    Publication date: November 29, 2001
    Applicant: Hitachi, Ltd.
    Inventors: Yukinobu Tada, Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima
  • Patent number: 6275646
    Abstract: A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: August 14, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Yukinobu Tada, Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima
  • Patent number: 6158682
    Abstract: On the occasion of stopping the tape running at a high speed, a winding radius of the tape supply reel is detected to set the tape deceleration rate (a) on the basis of the detected winding radius of the supply reel. After the tape running speed is decelerated up to the allowable speed VL in the predetermined deceleration rate (a), the tape is stopped by effectuating the brake. Thereby, the tape can be driven at the speed higher than the allowable speed VL without generating any damage, enabling reduction of time required for the fast-forward/rewind operation. Moreover, application flexibility is improved by providing a couple of tape running modes at the first high speed V1 which is higher than the allowable speed VL and the second high speed V2 which is lower than the allowable speed VL.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: December 12, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Kijima, Hideo Nishijima, Kaneyuki Okamoto, Takeo Ohkouchi, Yukinobu Tada
  • Patent number: 6089485
    Abstract: On the occasion of stopping the tape running at a high speed, a winding radius of the tape supply reel is detected to set the tape deceleration rate (a) on the basis of the detected winding radius of the supply reel. After the tape running speed is decelerated up to the allowable speed VL in the predetermined deceleration rate (a), the tape is stopped by effectuating the brake. Thereby, the tape can be driven at the speed higher than the allowable speed VL without generating any damage, enabling reduction of time required for the fast-forward/rewind operation. This can improve application flexibility by providing a couple of tape running modes at the first high speed V1 which is higher than the allowable speed VL and the second high speed V2 which is lower than the allowable speed VL.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: July 18, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Kijima, Hideo Nishijima, Kaneyuki Okamoto, Takeo Ohkouchi, Yukinobu Tada
  • Patent number: 6002831
    Abstract: A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: December 14, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Yukinobu Tada, Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima
  • Patent number: 5839683
    Abstract: On the occasion of stopping the tape being run at a high speed, a winding radius of the tape supply reel is detected, and a tape deceleration rate is set in response to the detected winding radius. After the tape running speed is decelerated in the deceleration rate up to a preset speed, VL, at which the tape being run can be stopped without damage, the tape is stopped by a brake means. Thereby, the tape can be driven at a higher speed than the speed, VL, without damage, enabling a reduction of time required for a fast forward/rewind operation.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: November 24, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Kijima, Hideo Nishijima, Kaneyuki Okamoto, Takeo Ohkouchi, Yukinobu Tada