Cordless telephone apparatus
First Claim
1. A cordless telephone apparatus comprising a base station connected to a public telephone network and assigned with a specific identification code, said base station having one or more additional functions, and one or more personal stations linked to said base station and having remote-control instruction means for instructing the operation of an additional function of said base station, said personal station being capable of performing radio communications with said base station within a range in which radio waves from said base station is receivable and capable of performing radio communications with a cell station connected to said public telephone network outside said range of radio waves,said personal station including:
- communication station decision means for deciding which one of said base station and cell station can perform radio communications with said personal station;
storage means for storing the specific identification code of said base station and a control code corresponding to said additional function;
DTMF signal generation means for converting the given control code into a DTMF signal in accordance with a predetermined conversion rule; and
control means for controlling said personal station to cause it to read from said storage means the control code corresponding to the additional function instructed by said remote-control instruction means and said identification code and transmit these codes to said base station when radio communications between said base station and said personal station is performable and read from said storage means the control code corresponding to the additional function instructed by said remote-control instruction means, supply the read-out control code to said DTMF signal generation means and transmit a DTMF signal representative of the converted control code when radio communications between said cell station and said personal station is performable.
1 Assignment
0 Petitions
Accused Products
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.
14 Citations
11 Claims
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1. A cordless telephone apparatus comprising a base station connected to a public telephone network and assigned with a specific identification code, said base station having one or more additional functions, and one or more personal stations linked to said base station and having remote-control instruction means for instructing the operation of an additional function of said base station, said personal station being capable of performing radio communications with said base station within a range in which radio waves from said base station is receivable and capable of performing radio communications with a cell station connected to said public telephone network outside said range of radio waves,
said personal station including: -
communication station decision means for deciding which one of said base station and cell station can perform radio communications with said personal station; storage means for storing the specific identification code of said base station and a control code corresponding to said additional function; DTMF signal generation means for converting the given control code into a DTMF signal in accordance with a predetermined conversion rule; and control means for controlling said personal station to cause it to read from said storage means the control code corresponding to the additional function instructed by said remote-control instruction means and said identification code and transmit these codes to said base station when radio communications between said base station and said personal station is performable and read from said storage means the control code corresponding to the additional function instructed by said remote-control instruction means, supply the read-out control code to said DTMF signal generation means and transmit a DTMF signal representative of the converted control code when radio communications between said cell station and said personal station is performable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification