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.

Date of Patent:
Mar. 02, 1999

Filed:

Dec. 09, 1994
Applicant:
Inventors:

Horst Ziegler, Paderborn, DE;

Horst Diewald, Freising, DE;

Franz Prexl, Niederding, DE;

Erich Bayer, Piflas, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
327156 ; 327160 ; 327161 ;
Abstract

A clock generator contains a reference oscillator (10), a digital closed delay chain (12), a digital frequency divider (14) and a digital phase comparator (16). The frequency divider (14) is connected between the output of the adjustable delay chain (12) and one input of the phase comparator (16). The output of the reference oscillator (10) is connected to a further input of the phase comparator (16). Between the output of the phase comparator (16) and the delay chain (12) a digital up-down counter (18) is connected, the counting direction of which is determined by the output signal of the phase comparator (16) and by means of which the corresponding length of the delay chain (12) is adjustable.


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