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Title: Asynchronous type multichannel signal processing system

Abstract: An asynchronous multichannel signal processing system comprises a transmitter and a receiver. A transmitter is adapted to transmit a signal converted from data being transmitted including address data and control data such that one information unit comprises a plurality of units each including one frequency signal. The receiver is adapted to reproduce the received data by discriminating the frequency component included in the received signal. At that time, a plurality of readings of received data are reproduced in one unit time period of the transmitted signal. If and when the address data included in at least one of the plurality of readings of received data coincides with its own address data of the receiver, the control data is extracted from the received data including the coincided address data.


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Inventors: Abiko, Toshio (Ibaragi, JP)
Matsuo, Masayuki (Shijonawate, JP)

Application Number: 06/226874
Filing Date: 1981-01-21
Publication_date: 1983-06-21
Assignee: MATSUSHITA ELECTRIC WORKS LTD (JP)

Primary Class(es): 340/825.520 340/825.730, 340/825.560
Other Classes: H04L27/30; H04L27/26; H04B1/00; H04Q9/12
US Patent Ref:
3551889December, 1970Miller340/825.75REMOTE SIGNALING OF CONTROL SIGNALS
3723956March, 1973Carman367/197ACOUSTIC CONTROL TRANSMITTER
3766523October, 1973Brocker et al.340/825.75SEQUENTIAL TONE SIGNALLING SYSTEM
4045767August, 1977Nishihara et al.340/825.76Method of ultrasonic data communication and apparatus for carrying out the method
4047227September, 1977Rzeszewski340/825.76Auxiliary signal processing circuit
4084138April, 1978Wycoff340/825.73Selective call communication system
4121198October, 1978Tsuboi340/825.75Remote control system
4127846November, 1978Mori et al.340/825.75Tone signal detecting circuit
4231019October, 1980Junginger et al.340/825.76Remote control arrangement for a medical appliance

Other Refs:
Primary Examiner: Yusko, Donald J.
Assistant Examiner:
Attorney: Birch, Stewart, Kolasch & Birch
Claims: