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:
Jun. 04, 1996
Filed:
Nov. 22, 1993
Sony Corporation, Tokyo, JP;
Abstract
A synchronizing signal extracting apparatus comprising synchronizing signal detecting circuit for detecting a synchronizing signal of predetermined bits from entered digital data, synchronizing signal generating circuit adapted to be reset by an output of the synchronizing signal detecting circuit, the synchronizing signal generating circuit generating an output in a timing of said synchronizing signal, and synchronizing signal extracting circuit for outputting, as a synchronizing signal, a result of an OR operation performed on the output of said synchronizing signal detecting circuit and the output of said synchronizing signal generating circuit, the synchronizing signal extracting circuit changing a state thereof according to match/mismatch in timing between the output of said synchronizing signal detecting circuit and the output of said synchronizing signal generating circuit. The novel setup outputs correct synchronizing signals and data enable signal even if the detection of synchronizing signals is missed or erroneously made, reduces chances of the missed detection of synchronizing signals even when the signal-to-noise ratio of reproduced signal is poor at digital VTR variable-speed reproduction or high-speed search, and implements synchronizing signal extraction of high precision.