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:
Oct. 08, 2002
Filed:
May. 12, 1999
Yoichiro Sako, Chiba, JP;
Yoshitomo Osawa, Kanagawa, JP;
Akira Kurihara, Tokyo, JP;
Isao Kawashima, Kanagawa, JP;
Hideo Owa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A data transmitting method, a data recording apparatus, a data record medium and a data reproducing apparatus are provided to disallow the encryption to be easily decoded and keep the secrecy of key information higher. The data transmitting apparatus includes an error correction coding process block. In the block, an input converting circuit operates to perform a logic operation with respect to the information data from an interface circuit according to the key data. The converted information data is sent to an encoder for generating parity data. This parity data is mixed in a mixing circuit with information data before conversion. The error correction coding block operates to send the resulting data to a modulating circuit for modulating the data. The modulated data is recorded on a disk record medium.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile