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. 11, 1989
Filed:
Sep. 14, 1988
Applicant:
Inventor:
Pierre Lopez, Paris, FR;
Assignee:
Alcatel Thomson Faiscequx Hertziens, Levallois Perret Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ; H03K / ;
U.S. Cl.
CPC ...
329124 ; 329 50 ; 329107 ; 329145 ;
Abstract
In a method of detecting false locks between a reference signal and an input signal to be demodulated to produce a coherent demodulated signal comprising a number of phase states, the level of the input signal at a predetermined moment in the bit period of the input signal after demodulation and before regeneration is compared with the level of the input signal after regeneration, bit by bit. The reference signal is optionally corrected so as to lock its reference and phase to the input signal.