Multifrequency signal receiver

Details Multifrequency signal receiver Multifrequency signal receiver

H - Electricity

04

M

328/160, 379/20

H04M 1/50 (2006.01) H04Q 1/453 (2006.01)

Patent

CA 1102887

MULTIFREQUENCY SIGNAL RECEIVER Abstract of the Disclosure Detection of valid two-out of-N multifrequency signals is realized by employing a microprocessor in conjunction with a controllably adjustable or settable reference threshold level and a plurality of threshold detectors. Under control of the processor, a reference threshold level supplied to the detectors is set to a first prescribed level. Upon detection of a tone which exceeds the first threshold level the processor controllably sets the reference threshold level to a second prescribed level. Detection of two, and only two, tones which are present for at least a minimum prescribed interval are then considered valid.

306495

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-531486