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. 16, 1990
Filed:
Nov. 10, 1988
Jun Takayama, Tokyo, JP;
Katsuichi Tachi, Kanagawa, JP;
Hideto Suzuki, Kanagawa, JP;
Kenshiro Masuzaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An original data stream encoded into an M.sup.2 coded data stream having a plurality of bit cells has a synchronizing signal with a unique sync pattern based on the logic levels of the original data stream inserted into the M.sup.2 coded data stream. The unique pattern forming the synchronizing signal is constructed so as not to appear as a pattern in the combined data stream other that at the locations of the inserted synchronizing signal. As a result, random M.sup.2 coded data patterns are not erroneously detected to be a sync pattern, thereby avoiding a synchronization shift and the occurrence of a synchronization error. Accordingly, a correct and stable synchronization can be established so as to enable reproduction of an original data stream with high fidelity.