Radio communication method and system

Details Radio communication method and system Radio communication method and system

1989-05-25

1992-06-16

Dwyer, James L.

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, H04Q 700

Patent

active

051230437

ABSTRACT:
A method and system for radio communication between at least one parent communication unit and a plurality of slave communication units. A slave communication unit transmits an automatic answer signal in response to an incomming call receipt signal transmitted from the parent communication unit. When one of the slave communication units makes a called-person's answer to the incomming call receipt signal, it transmits a called-person's answer signal. If interference occurs between the automatic and called-person's answer signals, the parent communication unit provides a command, causing the slave communication units to stop the automatic and called-person's answer signals and permits the slave communication unit which transmits the called-person's answer signal to communicate with the parent communication unit.

REFERENCES:
patent: 4144412 (1979-03-01), Ito et al.
patent: 4242538 (1980-12-01), Ito et al.
patent: 4352955 (1982-10-01), Kai et al.
patent: 4633509 (1986-12-01), Scheinert
patent: 4650928 (1987-03-01), Numata
patent: 4723264 (1988-02-01), Sasuta et al.
patent: 4802200 (1989-01-01), Murata et al.
patent: 4829554 (1989-05-01), Barnes et al.
Japanese Patent Abstract, vol. 3, No. 31.
Japanese Patent Abstract, vol. 9, No. 106.
Japanese Patent Abstract, vol. 9, No. 298.
Japanese Patent Abstract, vol. 10, No. 221.

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