Patents by Inventor Yousuke TOYOTA

Yousuke TOYOTA 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).

  • Digital data reproducing device
    Patent number: 8838500
    Abstract: The present invention provides a digital data reproducing device having a simple configuration and being capable of protecting copyright of digital data such as video or audio. Content provider side embeds copyright management information (cumulative number of reproduction times, permissible number of reproduction times, etc.) into digital data that has been degraded by scrambling, and provides it to a content user. A reproducing device of the content user side causes copyright management information detection unit to detect the copyright management information, decreases the data degradation depending on result of the detection, and reproduces by data reproducing unit.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: September 16, 2014
    Assignee: KDDI Corporation
    Inventors: Masaru Sugano, Koichi Takagi, Yousuke Toyota
  • DIGITAL DATA REPRODUCING DEVICE
    Publication number: 20090119781
    Abstract: The present invention provides a digital data reproducing device having a simple configuration and being capable of protecting copyright of digital data such as video or audio. Content provider side embeds copyright management information (cumulative number of reproduction times, permissible number of reproduction times, etc.) into digital data that has been degraded by scrambling, and provides it to a content user. A reproducing device of the content user side causes copyright management information detection unit to detect the copyright management information, decreases the data degradation depending on result of the detection, and reproduces by data reproducing unit.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 7, 2009
    Inventors: Masaru SUGANO, Koichi TAKAGI, Yousuke TOYOTA