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:
May. 22, 1984
Filed:
Mar. 03, 1982
Applicant:
Inventors:
Isaac E Kliger, Lexington, MA (US);
William C Brown, Jr, Littleton, MA (US);
David S Goldstein, Framingham, MA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ; H03L / ;
U.S. Cl.
CPC ...
328155 ; 331 25 ;
Abstract
Circuitry for controlling a phase-lock loop using a charge-pump phase detector is shown to comprise a phase detector network in combination with an operational amplifier connected to selected output signals from such network to produce a bipolar D.C. signal indicative of the phase difference between signals applied to such network, one of the signals being at a frequency half that of the other.