| Title of Invention | INFORMATION RECORDING AND/OR REPRODUCING METHOD AND INFORMATION RECORDING AND/OR REPRODUCING DEVICE |
|---|---|
| Abstract | An information reproducing and an information reproducing device which the key renewal block (KRB) of the latest version is selectively used to encrypt the content to store the encrypted contents in a recording medium. A plural num er of KRBs of different generations and stored in a recording medium. If the latest KRB is detected, it is stored in a memory unit within the recording and/or reproducing device. A plural number of KRBs having plural different generations or versions are stored on the recording medium. With the present method and device, in storing the content in the medium, the latest usable one of the KRB in the memory unit of the reproducing device and plural KRBs on the recording medium is detected to acquire an encrypting key, such as a media key, to execute the content the content encryption. In this manner, the encrypted content based on a KRB of mewer version can at all times stored on the recording medium. |
| Full Text | N/A |
|---|
IN-PCT-2002,00137-MUM-ABSTRACT(1-9-2008).pdf
IN-PCT-2002,00137-MUM-CANCELLED PAGES(1-9-2008).pdf
IN-PCT-2002,00137-MUM-CLAIMS(1-9-2008).pdf
IN-PCT-2002,00137-MUM-COPY US PATENT(1-9-2008).pdf
IN-PCT-2002,00137-MUM-CORRESPONDENCE(1-9-2008).pdf
IN-PCT-2002,00137-MUM-DESCRIPTION(COMPLETE)-(1-9-2008).pdf
IN-PCT-2002,00137-MUM-DRAWING(1-9-2008).pdf
IN-PCT-2002,00137-MUM-FORM 1(1-9-2008).pdf
in-pct-2002,00137-mum-form 13(2-9-2008).pdf
in-pct-2002,00137-mum-form 2(1-9-2008).pdf
IN-PCT-2002,00137-MUM-FORM 2(TITLE PAGE)-(1-9-2008).pdf
IN-PCT-2002,00137-MUM-FORM 3(1-9-2008).pdf
IN-PCT-2002,00137-MUM-PETITION UNDER RULE 137(2-9-2008).pdf
IN-PCT-2002,00137-MUM-POWER OF AUTHORITY(2-9-2008).pdf
in-pct-2002-00137-mum-abstract(1-9-2008).doc
in-pct-2002-00137-mum-abstract(1-9-2008).pdf
in-pct-2002-00137-mum-cancelled pages(1-9-2008).pdf
in-pct-2002-00137-mum-claims(granted)-(1-9-2008).doc
in-pct-2002-00137-mum-claims(granted)-(1-9-2008).pdf
in-pct-2002-00137-mum-correspondence(1-9-2008).pdf
in-pct-2002-00137-mum-correspondence(ipo)-(16-1-2009).pdf
in-pct-2002-00137-mum-drawing(1-9-2002).pdf
in-pct-2002-00137-mum-form 1(1-9-2008).pdf
in-pct-2002-00137-mum-form 13(2-9-2008).pdf
in-pct-2002-00137-mum-form 18(10-6-2005).pdf
in-pct-2002-00137-mum-form 2(granted)-(1-9-2008).doc
in-pct-2002-00137-mum-form 2(granted)-(1-9-2008).pdf
in-pct-2002-00137-mum-form 3(1-9-2008).pdf
in-pct-2002-00137-mum-form 3(30-1-2002).pdf
in-pct-2002-00137-mum-form 5(30-1-2002).pdf
in-pct-2002-00137-mum-form-pct-isa-210(1-9-2002).pdf
in-pct-2002-00137-mum-petition of under rule 137(2-9-2008).pdf
in-pct-2002-00137-mum-power of authority(1-9-2008).pdf
in-pct-2002-00137-mum-power of authority(31-1-2002).pdf
| Patent Number | 227701 | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indian Patent Application Number | IN/PCT/2002/00137/MUM | ||||||||||||||||||
| PG Journal Number | 10/2009 | ||||||||||||||||||
| Publication Date | 06-Mar-2009 | ||||||||||||||||||
| Grant Date | 16-Jan-2009 | ||||||||||||||||||
| Date of Filing | 30-Jan-2002 | ||||||||||||||||||
| Name of Patentee | SONY CORPORATION | ||||||||||||||||||
| Applicant Address | 7-35 KITASHINAGAWA 6-CHOME, SHINAGAWA-KU, TOKYO 141-0001 | ||||||||||||||||||
Inventors:
|
|||||||||||||||||||
| PCT International Classification Number | H04L9/00 | ||||||||||||||||||
| PCT International Application Number | PCT/JP01/05326 | ||||||||||||||||||
| PCT International Filing date | 2000-06-21 | ||||||||||||||||||
PCT Conventions:
|
|||||||||||||||||||