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.

Date of Patent:
Jun. 05, 1984

Filed:

Sep. 27, 1982
Applicant:
Inventors:

Jun Inagawa, Yokohama, JP;

Masahide Nagumo, Kawasaki, JP;

Tadashi Kojima, Yokosuka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
375116 ; 375119 ; 370105 ;
Abstract

A synchronous circuit comprises a sync signal detecting circuit connected to receive a digital signal with a plurality of frames each consisting of N bits and containing a frame sync signal to detect a sync signal in each frame, and a sync protecting circuit for producing a sync control signal synchronized with the detection of the sync signals and interpolating the sync control signal every frame when the sync signal is not detected. The sync protecting circuit has a counter for counting the number of frames in which the sync signals are not detected. A circuit is provided to quickly synchronize the sync protecting circuit with the detection of the sync signal by the sync signal detecting circuit when noise is produced by the sync signal detecting circuit and then a sync signal is detected after a given value has been counted by the counter.


Find Patent Forward Citations

Inagawa, Jun. (1984). Synchronizing circuit for detecting and interpolating sync signals (U.S. Patent No. 4453260). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4453260

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…