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. 19, 1995
Filed:
Oct. 21, 1994
Applicant:
Inventor:
Mark E Burchfield, Austin, TX (US);
Assignee:
Cyrix Corporation, Richardson, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L / ; H03L / ;
U.S. Cl.
CPC ...
331-8 ; 331 10 ; 331 17 ; 331 25 ; 327157 ;
Abstract
A current source suitable for use as a loop filter in a phase-locked loop having two aspects of automatic gain control one for prohibiting the voltage controlled oscillator from stopping as the input voltage approaches the limits of the oscillator and another to compensate for current limiting drain to source voltage drops.