Patent · US Expired

Digital detector circuit for recovering the bit timing from a data stream

US5946363A · kind A · utility

39Cited by

7References

10Claims

0Family size

Assignee

Deutsche Thomson-Brandt GmbH · DE

Inventors

Friedrich Rominger · Brigachtal, DE
Albrecht Rothermel · Neu-Ulm, DE
Heinrich Schemmann · Villingen-Schwenningen, DE

Key dates

Filing date	Dec 10, 1996
Grant date	Aug 31, 1999
Priority date	—
Expiry date	Dec 10, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH04L7/0331
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.