Patent · US Expired

Noise limiter

US3968383A · kind A · utility

3Cited by
4References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 10, 1974
Grant dateJul 6, 1976
Priority date
Expiry dateJul 10, 1994

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03G3/345
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

In a radio receiver, noise limiter apparatus specifically designed to clip impulse noise and to pass the audio signal undistorted up to about 80% carrier modulation. The noise limiter comprises a clipping circuit which is normally turned on by the audio signal to pass same, and a noise impulse amplifier branch containing an amplifier which is edgetriggered to cause clipping during the presence of noise impulses and to eliminate an output from the impulse amplifier when an audio signal is present.

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