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:
Oct. 16, 1990
Filed:
Oct. 04, 1988
Applicant:
Inventor:
John S Shier, Apple Valley, MN (US);
Assignee:
VTC Incorporated, Bloomington, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375108 ; 328120 ; 375120 ;
Abstract
A timing synchronizing circuit with a phase locked loop. A multiplexor is employed to cause the phase locked loop to alternate between a self-excited mode for maintaining the frequency of a recovered timing signal and a mode in which state transitions of a baseband data signal are compared with the phase locked loop feedback signal to adjust the frequency of the recovered timing signal.