Data transmission system employing wire and wireless transmissio

Details Data transmission system employing wire and wireless transmissio Data transmission system employing wire and wireless transmissio

1981-09-21

1984-04-17

Groody, James J.

Communications: electrical

Systems

Selsyn type

340310CP, 34087029, H04B 354

Patent

active

044437862

ABSTRACT:
A data transmission system using an alternating mains supply for a signal transmission path including a movable module having a data input device, a first transmitter coupled to the data input device for transmitting a first wireless transmission of data fed into the input device, a first receiver for receiving a second wireless transmission of data and an output device coupled to the first receiver for putting out data corresponding to the received second wireless transmission. The system additionally includes a fixed module arranged to be connected to the mains supply and including a second receiver for receiving the first wireless transmissions, a line driver coupled to the second receiver for feeding signals into the mains supply corresponding to the data received by the second receiver, a signal receiver for receiving signals from the mains supply and a second transmitter coupled to the signal receiver for transmitting the second wireless transmission of data corresponding to the data received by the signal receiver.

REFERENCES:
patent: 3942170 (1976-03-01), Whyte
patent: 4119948 (1978-10-01), Ward et al.
patent: 4131882 (1978-12-01), Hollabaugh et al.
patent: 4173754 (1979-11-01), Felker
patent: 4302750 (1981-11-01), Wadhwani et al.
patent: 4348657 (1982-09-01), Merkel

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