Radio communication apparatus in which a particular call can be

Details Radio communication apparatus in which a particular call can be Radio communication apparatus in which a particular call can be

1990-07-13

1991-12-31

Kuntz, Curtis

Telecommunications

Transmitter and receiver at separate stations

455228, 34082544, H04Q 700

Patent

active

050778293

ABSTRACT:
In a radio communication apparatus in which an audible tone is generated (21-22) in response to reception (15-17, 19) of either a primary or a secondary call signal and stopped by a reset switch (23), the audible tone is stopped (172, 18) when the secondary call signal is received. When the primary call signal is received, the audible tone is not stopped unless the reset switch is continuously closed during a predetermined time interval. Alternatively, the audible tone is stopped when the reset switch is twice closed although the audible tone is produced again after the audible tone is stopped when the reset switch is once closed. As a further alternative, the audible tone is stopped in response to repeated closure of the reset switch without being again produced when the reset switch is once closed.

REFERENCES:
patent: 4422178 (1983-12-01), Mori
patent: 4506386 (1985-03-01), Ichikawa et al.
patent: 4523332 (1985-06-01), Mori
patent: 4606076 (1986-08-01), Davis
patent: 4768631 (1988-08-01), Mori et al.

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