Cordless telephone apparatus

Details Cordless telephone apparatus Cordless telephone apparatus

1996-02-22

1998-12-15

Bost, Dwayne D.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455 111, H04Q 732

Patent

active

058506012

ABSTRACT:
A cordless telephone apparatus has a base station connected to a public telephone network and assigned with a specific identification code and one or more personal stations linked to the base station through the medium of radio frequencies. The base station has one or more additional functions in addition to the speech function. The personal station can perform radio communications with the base station within a range in which radio waves from the base station is receivable and can perform radio communications with a cell station connected to a public telephone network outside the radio wave receivable range. The personal station has a remote-control instruction unit for instructing operation of the additional function of the base station. The personal station has a communication station decision unit for deciding which one of the base station and cell station can radio-communicate with the personal station, a storage unit for storing a specific identification code of the base station and a control code corresponding to the additional function, a DTMF signal generation unit for converting the given control code into a DTMF signal in accordance with a predetermined conversion rule, and a controller.

REFERENCES:
patent: 4941203 (1990-07-01), Patsiokas et al.
patent: 5127042 (1992-06-01), Gillig et al.
patent: 5220594 (1993-06-01), Ohnishi et al.
patent: 5325420 (1994-06-01), Kikuchi
patent: 5442680 (1995-08-01), Schellinger et al.
patent: 5488649 (1996-01-01), Schellinger
patent: 5617468 (1997-04-01), Nojima et al.

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