Method and apparatus for remote talk/listen communication system

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

379 63, 455 54, H04B 140

Patent

active

048737119

ABSTRACT:
A vehicle mounted mobile transceiver having a first and second frequency (11) communicates via a secondary mobile unit (51) with a short range portable unit (10). The portable unit (10) can be either a cordless microphone or a transceiver having a third and fourth frequency. The portable unit (10) allows a remotely positioned operator to transmit messages to a base station (13). To ensure security and reliable operation, the portable and vehicle mounted units use range burst signals and missed message signals to monitor receipt of data signals at the portable unit. The portable and secondary mobile unit communicate with one another via a first pair of frequencies and the vehicle mounted mobile transceiver and the base station communicate with one another via a second pair of different frequencies.

REFERENCES:
patent: 3955140 (1976-05-01), Stephens et al.
patent: 4056779 (1977-11-01), Toler
patent: 4056780 (1977-11-01), Faulkner
patent: 4539706 (1985-09-01), Mears et al.
patent: 4593273 (1986-06-01), Narcisse
patent: 4606073 (1986-08-01), Moore
patent: 4647722 (1987-03-01), Nishida et al.
patent: 4658435 (1987-04-01), Childress et al.
patent: 4661972 (1987-04-01), Kai
patent: 4673861 (1987-06-01), Dubovsky et al.
patent: 4701944 (1987-10-01), Howard et al.
Kobayashi et al., "Detachable Mobile Radio Units for the 860 MHz Land Mobile Radio System", IEEE 34th Vehicular Technology Conference, 5/84.
Theory/Maintenance Manual 68P1010C05-A for the Motorola PAC*RT Portable/Mobile Vehicular Repeater System.

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

Method and apparatus for remote talk/listen communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for remote talk/listen communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for remote talk/listen communication system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1962310

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