Narrow-band communication apparatus

Details Narrow-band communication apparatus Narrow-band communication apparatus

1994-12-21

1997-12-09

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

455 89, 455127, H04B 140

Patent

active

056970960

ABSTRACT:
A novel narrow-band communication apparatus comprises a digital signal processor for demodulating the output from a receiving section and outputting a modulation signal for an audio input, an electric field strength detector section for detecting electric field strength in the output from the receiving section, an indicator for indicating whether the narrow-band communication apparatus is in a receiving mode or in a transmission mode, and a power controller for controlling supply of power to, or an operating state of specified portions of, the narrow-band communication apparatus according to the output from the electric field strength detector as well as from the indicator.

REFERENCES:
patent: 5519757 (1996-05-01), Torin
patent: 5606741 (1997-02-01), Yamamoto et al.

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