Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1984-08-10
1987-02-03
Orsino, Jr., Joseph A.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455606, 342 5, H04B 900
Patent
active
046413740
ABSTRACT:
An information medium used for receiving/delivering information from/to an exterior device, which includes a receiver circuit for receiving a modulated input signal from the exterior device, a demodulator for demodulating the modulated input signal to provide specific information, a decoder for decoding the specific information to provide a decoded instruction, a memory for storing given data, a controller for controlling a write or read operation of the memory in accordance with the contents of the decoded instruction, a modulator for generating a modulated signal which corresponds to data read-out from the memory, a transmitter circuit for delivering to the exterior device a transmission signal corresponding to the modulated signal, a battery for generating electric power, and a switch circuit for selectively supplying the electric power to any of the receiver circuit, demodulator, modulator and transmitter circuit. The selection of the switch circuit for the power supply depends on the contents of the specific information.
REFERENCES:
patent: 4213119 (1980-07-01), Ward et al.
patent: 4449206 (1984-05-01), Tokitsu et al.
Kabushiki Kaisha Toshiba
Orsino Jr. Joseph A.
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