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:
Apr. 07, 1992
Filed:
Jul. 25, 1990
Applicant:
Inventor:
Heinz Werker, Eching, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L / ; H04L / ;
U.S. Cl.
CPC ...
331 / ; 331 25 ; 331 16 ; 331 17 ; 331 27 ; 332128 ;
Abstract
A circuit configuration includes a controllable oscillator issuing an output signal. A phase detector is acted upon by a reference signal and by the output signal of the oscillator. A first charge pump is controllable by the phase detector and has an input connected to the phase detector and an output. A loop filter is connected between the first charge pump and the oscillator for triggering the oscillator. A second charge pump is connected parallel to the output of the first charge pump.