Patents by Inventor Isao Oowaki

Isao Oowaki 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).

  • Method and apparatus for recording and reproducing information on and from recording disc
    Patent number: 7415619
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: August 19, 2008
    Assignees: Victor Company of Japan, Ltd., Victor Entertainment, Inc.
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • Method and apparatus for recording and reproducing information on and from recording disc
    Patent number: 7408859
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: August 5, 2008
    Assignees: Victor Company of Japan Ltd., Victor Entertainment, Inc.
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • Method and apparatus for recording and reproducing information on and from recording disc
    Publication number: 20040047260
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Application
    Filed: August 11, 2003
    Publication date: March 11, 2004
    Applicant: JVC (VICTOR COMPANY OF JAPAN, LTD.)
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • Method and apparatus for recording and reproducing information on and from recording disc
    Publication number: 20040047261
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Application
    Filed: August 11, 2003
    Publication date: March 11, 2004
    Applicant: JVC (VICTOR COMPANY OF JAPAN, LTD.)
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • Method and apparatus for recording and reproducing information on and from recording disc
    Publication number: 20040028230
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 12, 2004
    Applicant: JVC (VICTOR COMPANY OF JAPAN, LTD.)
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • Method and apparatus for recording and reproducing information on and from recording disc
    Publication number: 20040028229
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 12, 2004
    Applicant: JVC (VICTOR COMPANY OF JAPAN, LTD.)
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • Method and apparatus for recording and reproducing information on and from recording disc
    Patent number: 6618335
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: September 9, 2003
    Assignees: Victor Company of Japan, Ltd., Victor Entertainment, Inc.
    Inventors: Yoshiaki Tanaka, Isao Oowaki
  • METHOD AND APPARATUS FOR RECORDING AND REPRODUCING INFORMATION ON AND FROM RECORDING DISC
    Publication number: 20010011237
    Abstract: A recording disc has a lead-in area and a data area. A scrambled version of a SID code word is read out from the lead-in area of the disc. The SID code word represents a producer of the disc. The readout scrambled version is de-scrambled to recover the SID code word. The recovered SID code word is collated with reference SID code words to decide whether or not the disc is legitimate. Main information is read out from the data area of the disc when it is decided that the disc is legitimate. Readout of the main information from the data area of the disc is inhibited when it is decided that the disc is not legitimate.
    Type: Application
    Filed: September 19, 1997
    Publication date: August 2, 2001
    Inventors: YOSHIAKI TANAKA, ISAO OOWAKI