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:
Jan. 30, 2001

Filed:

Feb. 18, 2000
Applicant:
Inventors:

Herwig Trimmel, Puchheim, DE;

Gerhard Thanhaeuser, Mering, DE;

Baldur Stummer, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/24 ;
U.S. Cl.
CPC ...
H03D 3/24 ;
Abstract

A phase-locked loop for controlling the phase of an output signal S,dependent on a reference signal S,with only a small phase timing error has a sampling circuit for sampling the reference signal S,with the output signal S,and for generating a sampling signal S,A, a jitter modulation circuit (,) for generating a sampling signal S,AJ delayed by a defined time duration and for alternating output of the undelayed sampling signal S,A and the delayed sampling signal S,AJ, a phase detector for acquiring an average phase difference between the output signal S,and the delayed and undelayed sampling signals S,A and S,AJ, and a controllable oscillator for generating the output signal S,with a frequency that is controllable dependent on the average phase difference acquired by the phase detector.


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