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. 28, 1992
Filed:
Mar. 22, 1991
Applicant:
Inventors:
Donald R Beyer, Bartlett, IL (US);
John P Monson, Palatine, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375119 ; 307269 ; 328 63 ;
Abstract
An improved clock recovery enchancement circuit is provided that is particularly adapted for solving the problem caused by an incoming signal that is asymmetric and comprises a sub-harmonic tone of the bit rate clock, that is 180.degree. out of phase with the recovering clock, thereby causing the data edges to appear to be locked. The clock recovery enhancement circuit, according to the invention, provides a window signal near a predefined edge of the recovering clock which creates a disable signal such that clock adjustments may be biased towards one direction.