Telecommunications – Transmitter and receiver at separate stations – With control signal
Patent
1997-08-25
2000-04-25
Hunter, Daniel S.
Telecommunications
Transmitter and receiver at separate stations
With control signal
455212, 455218, 455308, H04B 100
Patent
active
060554169
ABSTRACT:
A communication system having a radio master and a radio slave for communicating a communication signal and a control signal via a common channel is constructed by a receiver to receive a communication signal, a transmitter to transmit a control signal, and a limiter to limit an output of the signal received by the receiver for a period of time corresponding to a transmission of the control signal and a reception of a predetermined signal by the receiver. The limiter has a key to request the transmission of the control signal and limits the output of the reception signal in accordance with the key operation. The generation of an uncomfortable sound which is caused by a communication of the control signal can be prevented.
REFERENCES:
patent: 4689812 (1987-08-01), Hata
patent: 4748685 (1988-05-01), Rozanski
patent: 5060296 (1991-10-01), Grube et al.
U.S. Patent Application Serial No. 185,228, filed Jan. 24, 1994.
U.S. Patent Applicant Serial No. 191,755, filed Feb. 4, 1994.
U.S. Patent Application Serial No. 147,400, filed Nov. 5, 1993, and its related Application Serial No. 08/533,700, filed Sep. 26, 1995.
U.S. Patent Application Serial No. 918,009, filed Jul. 24, 1992.
Armstrong Darnell R.
Canon Kabushiki Kaisha
Hunter Daniel S.
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