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:
Sep. 18, 1984
Filed:
Aug. 09, 1982
Applicant:
Inventors:
John J Poklemba, Ijamsville, MD (US);
Chester J Wolejsza, Gaithersburg, MD (US);
Assignee:
Communications Satellite Corporation, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375 97 ; 375113 ; 329 50 ; 329100 ;
Abstract
Concurrent carrier and clock synchronization are derived from an input signal in interdependent loops without the use of phase look loop (PLL) circuitry in order to improve operation at higher bit rates. An acquisition detection signal is generated only in response to predetermined minimum errors in both the received signal amplitude and the recovered carrier phase.