Multi-frequency signal receiver

Details Multi-frequency signal receiver Multi-frequency signal receiver

1978-01-23

1979-03-20

Cooper, William C.

H04Q 146

Patent

active

041455800

ABSTRACT:
A multi-frequency signal receiver for use in tone signalling circuits is disclosed. The receiver includes a plurality of channel band pass filters having mutually independent pass bands, each of which receives the input signal. Threshold detectors are connected to the outputs of the channel bandpass filters as is a variable threshold circuit. The variable threshold circuit includes a peak hold circuit and an attenuator for generating a threshold value for the detectors. A rectifier and integrator circuit rectifies an output which is weighted compared with the output of the peak hold circuit to produce a timing signal. The timing signal is used to gate the output of the detectors.

REFERENCES:
patent: 3961143 (1976-06-01), Thyssens

Affiliated with

Also associated with

Rating

Multi-frequency signal receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-frequency signal receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-frequency signal receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-222575