Telephone communication terminal and communication method

Details Telephone communication terminal and communication method Telephone communication terminal and communication method

1995-07-05

1998-11-24

Kuntz, Curtis

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455404, 455567, 381110, H04Q 720, H04Q 732

Patent

active

058421394

ABSTRACT:
A telephone communication terminal responsive to a voice for originating a call includes an antenna, a diplexer, a radio unit, a base band unit, a controller, a loudspeaker, a microphone, a key input and display unit, a sound level measuring instrument, threshold generators, comparators, an analyzer, and a destination number storage. The sound level measuring instrument always measures the sound level of an input signal, such as a voice inputted from the microphone. The sound level measuring instrument conducts processing such as calculating signal power at fixed intervals. The output of the sound level measuring instrument is compared in a first comparator with the output of a first threshold generator outputting a preset threshold value. In the case where the output of the sound level measuring instrument is greater than the threshold value, a result of comparison is conveyed to the controller. The analyzer effects an analysis on an input signal and outputs information. The output of the analyzer is compared in a second comparator with lower and upper limit threshold values outputted from a second threshold generator.

REFERENCES:
patent: 4332981 (1982-06-01), Palombi et al.
patent: 4864622 (1989-09-01), Iida et al.
patent: 5165095 (1992-11-01), Borcherding
patent: 5295190 (1994-03-01), Yamashita et al.
patent: 5581595 (1996-12-01), Iwashita et al.
G.J. Vysotsky, "VoiceDialing--The First Speech Recognition Based Telephone Service Delivered to Customer's Home", IVTTA 94, Sep. 26, 1994, pp. 149-152.

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