Microprocessor controlled interface for cellular system
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United States of America Patent
Stats
-
Jan 5, 1988
Issued Date -
N/A
app pub date -
Dec 16, 1985
filing date -
Dec 16, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A microprocessor-controlled interface for a cellular radio telephone system enables the user to communicate with such system by means of conventional telephony devices. A standard telephone outlet communicates with the transceiver logic bus through a microprocessor. Switches are provided for controlling the audio path between the handset and the transceiver of the mobile, vehicular-mounted unit in response to the status of the interface outlet. The microprocessor interprets both the transceiver bus and various signals generated by the operation of a device that is plugged into the interface so that the operation of the device is rendered fully compatible with the cellular system. The microprocessor is programmed to decode known manufacturer protocols whereby the interface is able to render itself compatible with various equipment types.
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