Switching device for controlling power to appliances and muting

Details Switching device for controlling power to appliances and muting Switching device for controlling power to appliances and muting

1994-10-14

1996-06-18

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote control

379104, H04M 1100

Patent

active

055286739

ABSTRACT:
A switching device for simultaneously controlling AC power to an electrical appliance and providing an infrared mute and unmute signal to an infrared-controlled device in response to initiation and termination of a telephone call includes a circuit for connecting said switching device to a telephone line, having tip-and-ring connectors, and a telephone; an AC plug for connecting said switching device to an AC outlet; an AC power-controlled outlet for receiving electrical appliance plugs. An infrared-controlled circuit is provided for decoding an existing infrared emitting device and for emitting an infrared signal suitable for muting the infrared controlled device; and a control circuit is provided for simultaneously controlling power to said AC power-controlled outlet and causing said infrared circuit to emit the infrared signal. The control circuit is responsive to voltage across the tip-and-ring connectors and interconnected between the AC power plug, the AC power-controlled outlet and the infrared circuit.

REFERENCES:
patent: 4243973 (1981-01-01), Sandidge
patent: 4425477 (1984-01-01), Magil
patent: 4438527 (1984-03-01), Hammond
patent: 4442319 (1984-04-01), Treidl
patent: 4626848 (1986-12-01), Ehlers
patent: 4805206 (1989-02-01), Beom-Chae
patent: 4807052 (1989-02-01), Amano
patent: 4885579 (1989-12-01), Sandbank
patent: 5128987 (1992-07-01), McDonough et al.
patent: 5233646 (1993-08-01), Kuromi
patent: 5251253 (1993-10-01), Chutuk

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