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:
Jul. 24, 1990
Filed:
May. 17, 1989
Bernard Gherardi, Lisses, FR;
Societe Anonyme dite: Alcatel CIT, Paris, FR;
Abstract
A frame synchronization device for a synchronous digital bit stream divided into blocks by means of a block code and structured in frames comprises a frame alignment word configuration recognition circuit generating for each recognized configuration a recognition signal that is directed to a frame alignment acquisition control circuit through the intermediary of a configuration selection circuit. This circuit operates under the control of a time window definition circuit driven by a block timebase and a frame timebase and is adapted to select only recognition signals corresponding to alignment word configurations correctly placed relative to the blocks. The sorting done by the configuration selector eliminates most imitation alignment words and therefore accelerates significantly the synchronization process.