Patents by Inventor Hiroaki Shirane

Hiroaki Shirane 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).

  • Multiplexed audio data decoding apparatus and receiver apparatus
    Patent number: 8098695
    Abstract: A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM 60 there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller 50 transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM 60 to an internal RAM 25. A DSP 22 starts decoding processing by using the decoding program code which is transmitted into the internal RAM 25.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: January 17, 2012
    Assignees: Hitachi, Ltd., Hitachi Video and Information Systems, Inc.
    Inventors: Yukio Fujii, Shinichi Obata, Hiroaki Shirane, Eiji Yamamoto
  • MULTIPLEXED AUDIO DATA DECODING APPARATUS AND RECEIVER APPARATUS
    Publication number: 20090024400
    Abstract: A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM 60 there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller means 50 transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM 60 to an internal RAM 25. A DSP 22 starts decoding processing by using the decoding program code which is transmitted into the internal RAM 25.
    Type: Application
    Filed: September 23, 2008
    Publication date: January 22, 2009
    Inventors: YUKIO FUJII, SHINICHI OBATA, HIROAKI SHIRANE, EIJI YAMAMOTO
  • Multiplexed audio data decoding apparatus and receiver apparatus
    Patent number: 7447241
    Abstract: A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM 60 there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller means 50 transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM 60 to an internal RAM 25. A DSP 22 starts decoding processing by using the decoding program code which is transmitted into the internal RAM 25.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: November 4, 2008
    Assignees: Hitachi, Ltd., Hitachi Video and Information Systems, Inc.
    Inventors: Yukio Fujii, Shinichi Obata, Hiroaki Shirane, Eiji Yamamoto
  • Multiplexed audio data decoding apparatus and receiver apparatus
    Publication number: 20050039105
    Abstract: A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM 60 there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller means 50 transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM 60 to an internal RAM 25. A DSP 22 starts decoding processing by using the decoding program code which is transmitted into the internal RAM 25.
    Type: Application
    Filed: September 22, 2004
    Publication date: February 17, 2005
    Inventors: Yukio Fujii, Shinichi Obata, Hiroaki Shirane, Eiji Yamamoto
  • Multiplexed audio data decoding apparatus and receiver apparatus
    Patent number: 6816491
    Abstract: A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM 60 there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller means 50 transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM 60 to an internal RAM 25. A DSP 22 starts decoding processing by using the decoding program code which is transmitted into the internal RAM 25.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: November 9, 2004
    Assignees: Hitachi, Ltd., Hitachi Video and Information Systems, Inc.
    Inventors: Yukio Fujii, Shinichi Obata, Hiroaki Shirane, Eiji Yamamoto