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US 5,493,603 AGranted
Radio telephone set for digital communication which alerts the user of incoming digital data signals
AssigneeNEC Corporation
InventorSyoji Hirayama
Life of this patent
Estimating the term…
Abstract
In a radio telephone set for digital communication, tone sound is generated under a state where digital data is received. For this purpose, a tone generator is provided to make the tone sound. The tone generator is actuated when a received digital signal is for digital data communication.
Claims3
A radio telephone set for digital communication, comprising:
- means for receiving a transmitted digital signal,
- means for demodulating said received digital signal to produce a demodulated digital signal,
- analog signal generation means for generating an analog signal in accordance with said demodulated digital signal, when said demodulated digital signal contains analog telephone communication;
- indication signal generation means for generating an indication signal in accordance with said demodulated digital signal, said indication signal generation means being actuated when said demodulated digital signal is a digital data signal, in order to alert an operator of the radio telephone set of incoming digital data signals;
- state indication means for indicating a state in which said digital data signal is received upon reception of said indication signal from said indication signal generation means;
- a telephone set for carrying out the analog telephone communication by receiving said analog signal;
- and
- at least one external machine for processing said digital data signal.
5 more elements
Dependencies are inferred from the claim text.