Communications: electrical – Continuously variable indicating – With meter reading
Patent
1981-08-31
1983-11-01
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
194 15, 34082564, H04Q 900, H04B 132
Patent
active
044132603
ABSTRACT:
A coin-operated phonograph in which certain functions are remotely controlled. A transmitter is provided for transmitting a number of modulated carrier signals, including an up volume signal and a down volume signal. The phonograph carries a multi-channel receiver that is adapted for receiving the carrier signals transmitted by the transmitter. A detector is connected to the receiver for detecting the modulated carrier signals. An amplifier with gain control is provided and is controlled in accordance with receipt of the modulated carrier signals. A manually-operable volume control switch is carried by the phonograph and may be used instead of the transmitter to control the gain of the amplifier.
REFERENCES:
patent: 4056808 (1977-11-01), Benhamou
patent: 4127876 (1978-11-01), Schwartz
patent: 4228402 (1980-10-01), Plummer
Miller Anthony J.
Polanek Edward L.
Siegel Lawrence
Woodman Alan L.
Gerstman George H.
Stern Electronics, Inc.
Yusko Donald J.
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