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:
Aug. 16, 2011
Filed:
Jan. 22, 2003
Yoichiro Sako, Tokyo, JP;
Tatsuya Inokuchi, Tokyo, JP;
Yoichiro Sako, Tokyo, JP;
Tatsuya Inokuchi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Payloadas a header is recorded to a head of a UDI area. In the case of recording payloadand other payloads, each of them is quintuple-recorded in order to take a countermeasure against errors. Other payloads such as payloadand the like are recorded after payload. In the case of quintuple-recording, the payloads of the same payload number are collectively quintuple-recorded. AUDI is recorded from a position after one second from start time S. The payloads are arranged in positions at 12-frame intervals. Thus, the five data which is multiple-written are not arranged in the radial direction of a disc but widely distributed onto tracks. Error resistance is improved. An interval of data is set to an optimum value in accordance with the number of multiple-writing times, a linear velocity, a recording position on the disc, and the like.