JP2004215186A - Cordless telephone set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technique which performs communication from a receiver of digital broadcasting to a broadcasting side by using a cordless telephone set without restraining flexibility of a slave unit in the cordless telephone set. <P>SOLUTION: The cordless telephone set is provided with a master unit 1 connected with a telephone line, the slave unit 2 which performs radio communication with the master unit 1, a transmission repeater 31 which performs cable communication with an external communication terminal and radio communication with the master unit 1, and relays the communication terminal and the master unit 1, and a charger 3 which is provided with a charging part 32 for charging the slave unit 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cordless telephone set, and more particularly, to a charger in the cordless telephone set.
[0002]
[Prior art]
Digital broadcasting is characterized not only by communication from the broadcast side to the viewer, but also by two-way communication in which the viewer communicates to the broadcast side. As a result, the viewer of the program can enjoy services unique to the two-way communication, such as ordering the product introduced in the program from the broadcaster in real time, and responding to the viewer participation type program. it can. At present, communication from a viewer to a broadcast side is performed through a telephone line. Therefore, the viewer must connect the digital broadcast receiving device and the telephone line with a cable.
[0003]
However, in ordinary homes, there are many cases where there is no telephone line modular jack in a room where a viewer desires to install a receiving device. In this case, it is necessary to route the cable from the receiving device to the room having the modular jack, which is inconvenient.
Therefore, there is provided a technology for performing communication without using a cable by using a cordless telephone capable of wirelessly communicating between the master unit and the slave unit (for example, see Patent Literature 1 and Patent Literature 2).
[0004]
In Patent Document 1, a computer and a slave unit are connected by a cable, and the computer can be connected to a telephone line using a wireless communication function between the slave unit and the master unit.
Patent Document 2 discloses a wireless communication function between a slave unit and a master unit by connecting a computer to a charger for charging the slave unit with a cable and further connecting the charger and the slave unit. To allow computers to connect to telephone lines.
[0005]
In any case, the slave unit and the master unit are interposed in the communication route from the computer to the telephone line, and the communication route from the slave unit to the master unit is wireless. Therefore, it is not necessary to route the cable between the slave unit and the master unit.
If the method of Patent Literature 1 is applied to communication from a digital broadcast receiving device to a broadcast side, a viewer needs to connect the slave unit and the digital broadcast receiving device with a cable.
Also, if the method of Patent Document 2 is applied, the viewer needs to connect the digital broadcast receiving device and the charger with a cable, and connect the slave unit to the charger.
[0006]
[Patent Document 1]
JP-A-6-31255
[Patent Document 2]
JP 2001-144873 A
[Problems to be solved by the invention]
However, since the cordless telephone handset can be originally located anywhere in the home, it is not always connected to the digital broadcast receiving device when the viewer desires. However, if the slave is always connected to the digital broadcast receiving apparatus, the degree of freedom, which is the original purpose of the slave, is limited.
[0009]
Therefore, the present invention provides a technique for performing communication from a digital broadcast receiving apparatus to a broadcast side using a cordless telephone without limiting the degree of freedom, which is the original purpose of the slave unit.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the cordless telephone set according to the present invention performs a wired communication with a master unit connected to a telephone line, a slave unit performing wireless communication with the master unit, and an external communication terminal, The wireless communication device further includes a charger having a communication relay unit that relays the communication terminal and the master device by performing wireless communication with the master device and a charging unit that charges the slave device.
[0011]
According to the above configuration, the communication path from the modem to the telephone line is wireless from the charger to the base unit. This eliminates the need to route cables from the modem to the telephone line. Also, the charger can independently perform wireless communication with the master unit. This eliminates the need for the user to connect the slave to the modem or to connect the slave to the charger when performing data communication.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing a configuration of a cordless telephone set according to the present embodiment.
The cordless telephone set includes a master unit 1, a slave unit 2, and a charger 3.
Base unit 1 performs wireless communication with slave unit 2 and charger 3, and connects slave unit 2 and charger 3 to a telephone line.
[0013]
Slave device 2 performs wireless communication with master device 1. Thereby, the slave unit 2 can be connected to the telephone line via the master unit 1.
The charger 3 includes a communication relay unit 31 and a charging unit 32.
The communication relay unit 31 includes a modular jack 40, a pulse detection unit 33, a control unit 34, a transmission unit 35, a reception unit 37, and an antenna 36, and transmits a signal from the modem 4 to the base unit 1 wirelessly. 1 is received and transmitted to the modem 4.
[0014]
Modular jack 40 is provided on the outer surface of charger 3, to which a cable from modem 4 is connected. Thereby, the communication relay unit 31 can receive a signal from the modem 4 and transmit a signal to the modem 4. It is assumed that the modem 4 is built in the digital broadcast receiving device.
The pulse detecting unit 33 detects a pulse of a transmission signal from the modem 4 via the modular jack 40.
[0015]
The control unit 34 controls the operations of the pulse detection unit 33, the transmission unit 35, and the reception unit 37.
The transmission unit 35 modulates a signal from the modem 4 and transmits the signal to the antenna 36 according to an instruction from the control unit 34.
Antenna 36 transmits the modulated signal to base unit 1 by radio. When a signal is received from master device 1, the signal is transmitted to receiving portion 37.
[0016]
The receiving section 37 demodulates a signal from the antenna 36 and transmits the signal to the modem 4 according to an instruction from the control section 34.
The charging unit 32 includes a converter 38 and a power supply unit 39.
The converter 38 is connected to a commercial power supply, converts an AC voltage of the commercial power into a DC voltage, and transmits the DC voltage to the power supply unit 39.
[0017]
Power supply unit 39 supplies the DC voltage transmitted from converter 38 to communication relay unit 31 and slave unit 2. As a result, the communication relay unit 31 is driven, and the slave unit 2 is charged.
As described above, charger 3 can receive a signal transmitted from cable modem 4 by modem, modulate the signal, and transmit the signal to base unit 1 wirelessly.
Base unit 1 receives and demodulates a signal transmitted from charger 3 and transmits the demodulated signal to a telephone line. As a result, the signal from modem 4 is wirelessly transmitted between charger 3 and base unit 1 to the telephone line.
[0018]
FIG. 2 is an overall diagram in the case where the present embodiment is applied to communication from a digital broadcast receiving apparatus to a broadcast side.
As shown in FIG. 2, base unit 1 is connected to a modular jack 5 and a power outlet 6 in the home, and charger 3 is connected to a digital broadcast receiving device 7 and a power outlet 8. The receiving device 7 has a modem therein, and the modem performs communication.
[0019]
The communication path from the receiving device 7 to the home modular jack 5 is a cable from the receiving device 7 to the charger 3, a wireless connection from the charger 3 to the base unit 1, and a communication path from the base unit 1 to the home modular jack 5. Cable.
As described above, since the charger 3 and the base unit 1 are wireless, a digital broadcast viewer does not need to route a cable between the charger 3 and the base unit 1.
[0020]
Further, in the case of the conventional example, when the viewer performs communication to the broadcast side, it is necessary to take measures such as connecting the slave unit 2 to the receiving device 7 with a cable, but in the present embodiment, There is no need for that. This is effective when, for example, in a viewer participation type program, the viewer must answer the broadcast side within a predetermined time.
Further, in the present embodiment, since the charger of the cordless telephone set is diverted, a cordless telephone set is provided as a telephone function, and a dedicated device for performing wireless communication between the receiving device and the telephone line as a data communication function is provided. It is possible to avoid the routing of the cable at a lower cost than providing the cable.
[0021]
Although the present embodiment has been described assuming a digital broadcast receiving device as a communication terminal, the present invention is not limited to this. For example, a personal computer may be assumed as the communication terminal.
[0022]
【The invention's effect】
A cordless telephone set according to the present invention includes a base unit connected to a telephone line, a slave unit performing wireless communication with the base unit, and performing wired communication with an external communication terminal to perform wireless communication with the base unit. And a charger having a communication relay unit for relaying the communication terminal and the master unit and a charging unit for charging the slave unit.
[0023]
According to the above configuration, the communication path from the communication terminal to the telephone line is wireless from the charger to the base unit. This eliminates the need for the user to route the cable from the communication terminal to the telephone line. Also, the charger can independently perform wireless communication with the base unit. This eliminates the need for the user to connect the slave to the modem or to connect the slave to the charger when performing data communication.
[0024]
The charger may have a modular jack, and a cable laid from the communication terminal may be connected to the modular jack, so that the communication relay unit performs a wired connection with the communication terminal.
According to the above configuration, the user only needs to connect the cable from the modem to the modular jack of the charger. Thus, the charger can reduce the burden on the user for connection work.
[0025]
Further, the charger may receive power from outside the charger and supply power to the communication relay unit and the charging unit.
According to the above configuration, the charger can not only charge the slave unit by receiving power from the outside, but also drive the internal communication relay unit.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a cordless telephone set according to the present embodiment.
FIG. 2 is an overall diagram in the case where the present embodiment is applied to communication from a digital broadcast receiving device to a broadcast side.
[Explanation of symbols]
Reference Signs List 1 master unit 2 slave unit 3 charger 31 communication relay unit 32 charging unit 33 pulse detection unit 34 control unit 35 transmission unit 36 antenna 37 reception unit 38 converter 39 power supply unit 40 modular jack

Claims (3)

A base unit connected to the telephone line,
A slave unit that performs wireless communication with the master unit;
A communication relay unit that performs wired communication with an external communication terminal and relays the communication terminal and the master unit by performing wireless communication with the master unit, and a charger including a charging unit that charges the slave unit. A cordless telephone set comprising: The charger has a modular jack,
The cordless telephone set according to claim 1, wherein a cable laid from the communication terminal is connected to the modular jack, so that the communication relay unit performs a wired connection with the communication terminal. The charger is
The cordless telephone set according to claim 1, wherein the cordless telephone set receives power from outside the charger and supplies power to the communication relay unit and the charging unit.

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