Carrier data operated squelch

Pulse or digital communications – Spread spectrum – Direct sequence

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

455218, H03K 604

Patent

active

044556640

ABSTRACT:
A unique carrier data operated squelch for use with a demodulator detector for phase shift keyed digital signals. The counts transitions in the PSK signal by examining a narrow time window around the phase transitions. The number of data transitions that fall inside and outside the window is correlated with a predetermined threshold. The inventive carrier squelch permits parameter programmability and is particularly suitable for implemenation utilizing a microprocessor.

REFERENCES:
patent: 3472960 (1969-10-01), Gutleber et al.
patent: 3509471 (1970-04-01), Puente
patent: 3518680 (1970-06-01), McAuliffe
patent: 3535452 (1970-10-01), Oswald
patent: 3671776 (1972-06-01), Houston
patent: 3778550 (1973-12-01), David et al.
patent: 3939431 (1976-02-01), Cohlman
patent: 3978285 (1976-08-01), Tan et al.
patent: 3984777 (1976-10-01), Noguchi
patent: 4004090 (1977-01-01), Goto et al.
patent: 4017798 (1977-04-01), Gordy et al.
patent: 4035727 (1977-07-01), Ishii
patent: 4059805 (1977-11-01), de Laage de Meux et al.
patent: 4064361 (1977-12-01), Kustka et al.
patent: 4079329 (1978-03-01), England et al.
patent: 4197502 (1980-04-01), Sumner et al.
patent: 4218769 (1980-08-01), Cagle
patent: 4229822 (1980-10-01), Bench
patent: 4234957 (1980-11-01), Tracey et al.
patent: 4344175 (1982-08-01), Leslie

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Carrier data operated squelch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carrier data operated squelch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carrier data operated squelch will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-417318

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.