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. 26, 1982
Filed:
Feb. 04, 1980
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A synchronizing signal detecting circuit for synchronizing digital data receiving equipment is disclosed. Digital signals consisting of data and synchronizing signals obtained by repeating a predetermined pulse pattern many times are fed to a shift register in succession in synchronism with clock pulses. A gate circuit connected to the shift register detects the synchronization pulse pattern. A detector circuit detects a duration period of a coincidence signal which is the output of the gate circuit, and outputs a synchronous detection signal when the duration period of the coincidence signal exceeds the predetermined value. This synchronizing signal detecting circuit can detect synchronizing signals even when data errors are produced to some extent.