The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 2010
Filed:
Jun. 30, 2003
Shin-ichi Kadowaki, Sanda, JP;
Masaru Yamaoka, Kadoma, JP;
Takashi Yumiba, Kyotanabe, JP;
Toyoji Gushima, Habikino, JP;
Makoto Usui, Osaka, JP;
Shin-ichi Tanaka, Kyotanabe, JP;
Mitsurou Moriya, Ikoma, JP;
Shin-ichi Kadowaki, Sanda, JP;
Masaru Yamaoka, Kadoma, JP;
Takashi Yumiba, Kyotanabe, JP;
Toyoji Gushima, Habikino, JP;
Makoto Usui, Osaka, JP;
Shin-ichi Tanaka, Kyotanabe, JP;
Mitsurou Moriya, Ikoma, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile