Emergency vehicular communication device capable of contacting a

Telecommunications – Transmitter and receiver at same station – With a common signal processing stage

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455 542, 455 90, 455128, H04B 138

Patent

active

055794432

ABSTRACT:
A vehicular communication device includes a plurality of request switches, a request signal generator means, a transmitter, a receiver and a display. The request switches respectively designate a plurality of services which a user may request. The request signal generating means checks the operational conditions of all request switches in order to enable the user to operate at least two of the request switches substantially simultaneously. The request signal generator then generates a request signal on the basis of the checking. The transmitter transmits the request signal to a remote service facility. The receiver receives an acknowledgment signal received signal transmitted from the service facility. The display displays a message in accordance with the acknowledgment signal for assuring the user that the request signal has been received by the service facility.

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Journal of Nippodenso Technical Disclosure, p. 139 disclosure #56-139, dated Nov. 15, 1987.

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