Radio trunking system with transceivers and repeaters using spec

Details Radio trunking system with transceivers and repeaters using spec Radio trunking system with transceivers and repeaters using spec

1985-04-10

1987-04-14

Ng, Jin F.

Telecommunications

Carrier wave repeater or relay system

Plural modulated carriers

455 34, 455 54, 455 77, 370 95, H04B 140, H04B 715

Patent

active

046584358

ABSTRACT:
An arrangement for establishing communication between a first mobile radio transceiver and a second mobile radio transceiver through a repeater over a radio frequency channel selected from a plurality of such channels. A repeater distinguishes between two-tone signalling sequences and four-tone signalling sequences by determining the arrival rate over some predefined interval of a received signalling sequence. The repeater transmits a busy signal to alert mobile stations seeking to acquire a channel that the repeater is busy. The repeater interrupts the transmitted busy signal during a portion of the four-tone signalling sequence but not the two-tone signalling sequence to help prevent two-tone mobile stations from falsing on four-tone signalling sequences. The arrangement is thus made compatible with both two-tone signalling and four-tone signalling formats. A calling mobile transceiver may specify the length of signalling transmitted by the repeater, so that the mobile transceiver can cause the repeater to transmit signalling for a duration longer than the mobile transceiver itself would require.

REFERENCES:
patent: 3634627 (1972-01-01), Velentini
patent: 4347625 (1982-08-01), Williams
patent: 4360927 (1982-11-01), Bowen et al.
patent: 4395594 (1983-07-01), Meyerle
patent: 4414661 (1983-11-01), Karlstrom
patent: 4534061 (1985-08-01), Ulug
patent: 4553262 (1985-11-01), Coe
patent: 4573207 (1986-02-01), Smith et al.

Affiliated with

Also associated with

Rating

Radio trunking system with transceivers and repeaters using spec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio trunking system with transceivers and repeaters using spec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio trunking system with transceivers and repeaters using spec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1790846