Vehicular repeater system

Details Vehicular repeater system Vehicular repeater system

1989-12-18

1992-04-28

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 15, 455 541, H04B 715

Patent

active

051095262

ABSTRACT:
A vehicular repeater interrupts the repeated audio and a timing signal that is transmitted to the portable. The timing signal is used by the portable to determine when the vehicular repeater will next interrupt the repeated information. Accordingly, the portable synchronizes its transmission of a signal to coincide with the next interruption. If no transmission is desired, the portable operates to mute the portable's speaker during the interruption to prevent noise bursts. Upon the initial recipt of a portable+s transmission signal, the vehicular repeater extends the interruption interval to verify the portable's transmission signal.

REFERENCES:
patent: 4056779 (1977-11-01), Toler
patent: 4056780 (1977-11-01), Faulkner
patent: 4234959 (1980-11-01), Andrea, III et al.
patent: 4539706 (1985-09-01), Mears et al.
patent: 4615028 (1986-09-01), Lewis et al.
Beaman, "Vehicular Mounted Repeater in Emergency Medical Services (EMS) Communications", Nov. 1979, pp. 307-310.

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