Patent · US Expired

Method and circuit for processing signals for a motion sensor

US6552531B1 · kind B1 · utility

21Cited by
24References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 2001
Grant dateApr 22, 2003
Priority date
Expiry dateApr 13, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01P3/489
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The present invention relates to a method and a circuit arrangement for processing signals for an active motion sensor which generates at least one first sequence of input pulses that contain motion information. By at least one integrating filter circuit, each input pulse of a pulse train is integrated, and an associated output pulse is generated during a period in which the integrated signal is in excess of a predeterminable second threshold value after a predeterminable first threshold value has been exceeded so that the output pulse has a time delay with respect to the input pulse. As a result, noises of a duration which is shorter than the delay time are effectively suppressed.

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