Patent · US Expired

Device for forming a square-wave signal and detecting a reference mark from a sinusoidal signal with a singularity

US5606257A · kind A · utility

4Cited by

6References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Immanuel Krauter · Munderkingen, DE
Davide Buro · Reutlingen, DE

Key dates

Filing date	Aug 29, 1994
Grant date	Feb 25, 1997
Priority date	—
Expiry date	Aug 29, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH03K5/1536
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A device which reshapes sinusoidal signals with a singularity to generate square-wave signals and detects the singularity in an unambiguous and reliable manner. The sinusoidal pulses are reshaped into square-wave pulses in such a way that the edges of the square-wave pulses always occur at the same location regardless of the height of the sinusoidal signal. This is achieved in that a change in the edges of the square-wave signals is initiated whenever the sinusoidal signal crosses the zero-axis. The required signal processing and logical comparisons, which also enable a definite detection of reference marks, are carried out in a suitable circuit arrangement.

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