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:
Dec. 22, 1987
Filed:
Mar. 12, 1986
Applicant:
Inventors:
George E Andrews, Fleetwood, PA (US);
Paul C Davis, Reading, PA (US);
Dennis C Farley, Coopersburg, PA (US);
Stanley H Kravitz, Coopersburg, PA (US);
Thrygve R Meeker, Allentown, PA (US);
Owe G Petersen, Reading, PA (US);
Arthur W Schelling, Emmaus, PA (US);
Assignee:
American Telephone and Telegraph Company, AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375106 ; 375-3 ; 375110 ;
Abstract
A clock recovery and data retiming circuit is disclosed which utilizes a SAW filter to form the recovered clock signal. The phase shift of the received data signal associated with various attenuation and distortion effects of the communication channel is compensated for and removed from the retimed data signal by adjusting the phase of the SAW filter.