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:
Aug. 31, 1999
Filed:
Dec. 10, 1996
Applicant:
Inventors:
Friedrich Rominger, Brigachtal, DE;
Albrecht Rothermel, Neu-Ulm, DE;
Heinrich Schemmann, Villingen-Schwenningen, DE;
Assignee:
Deutsche Thomson-Brandt GmbH, Villingen-Schwenningen, DE;
Primary Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375376 ; 327159 ; 327163 ; 331 16 ;
Abstract
A digital detector circuit for recovering the bit timing of a data stream with a PLL includes a digital phase detector and a digital pulse length detector whose output signals are added and integrated, and the result is used for controlling the oscillator frequency. The output signal of the pulse length detector is determined by a corresponding algorithm, one slow and two fast, with direction-dependent output signals of the pulse length detector being generated.