JPH0734563B2 - Cordless phone - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wireless data transmission, and more particularly to a cordless telephone that can be used as a data modem by adding a wireless modem mechanism to the cordless telephone. It is a thing.

[Conventional technology]

Conventionally, cordless telephones have been limited to being able to communicate by voice with the other party via a telephone line with the base unit. Moreover, even a wireless modem is provided only with a single function as a modem.

[Problems to be solved by the invention]

The above-mentioned conventional cordless telephone and wireless modem each have only a single function for voice call, data transmission, and both of them use radio, but in the environment where the telephone and the data terminal coexist, the telephone (in this case, Had to install both a cordless phone and a modem (a wireless modem in this case).

[Means for solving problems]

The cordless telephone according to the present invention includes a voice transmission and connection control circuit provided in the master unit, a wireless data transmission modem provided in each of the master unit and the slave unit, and a cordless telephone mode provided in each of the master unit and the slave unit. It is provided with a switching means for switching the wireless data transmission modem mode, and a remote control means provided in each of the master unit and the slave unit for switching between the cordless telephone mode and the wireless data transmission modem mode by remotely controlling the other party. .

[Action]

According to the present invention, by adding a data terminal interface, a wireless data modem, and a remote control function of an operation mode to each of the master unit and the slave unit, a wireless data transmission circuit between the master unit and the slave unit is connected and a cordless telephone. The mode and the wireless data communication mode are switched as needed.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.
Shows a master unit, and (b) shows a slave unit.

In FIG. 1 (a), 1 is an antenna, 2 is a wireless transmission / reception circuit, 3 is a voice modem, 4 is a communication circuit, 5 is a handset, 6 is a control circuit, 7 is an operation display unit, 8 is a network control device, Reference numeral 9 is a line interface, 10 is a telephone line, 11 is a modem for wireless data transmission (hereinafter referred to as a wireless data modem), 12 is a data terminal interface (hereinafter referred to as a terminal interface), and 13 is a data terminal. And a communication line to which the computer is connected, and 14 is a wired data modem.

In FIG. 1 (b), 21 is an antenna, 22 is a radio transmitter / receiver, 23 is a voice modem, 24 is a call circuit, 25 is a handset, 26 is a control circuit, 27 is an operation display unit, and 28 is a modem for wireless data transmission. (Hereinafter referred to as a wireless data modem), 29
Is a data terminal interface (hereinafter referred to as a terminal interface), and 30 is a communication line to which the data terminal is connected.

The control circuit 6 and the operation display unit 7 in FIG. 1A and the control circuit 26 and the operation display unit 27 in FIG. 1B are means for switching between the cordless telephone mode and the wireless data transmission modem mode, respectively. , Constitutes a means for enabling the other party to switch modes by remote control.

The line network control device 8 and the line interface 9 shown in FIG. 1A constitute a circuit for voice transmission and connection control, and the terminal interface 12 and the wireless data modem 11 and the first line shown in FIG. The terminal interface 29 and the wireless data modem 28 shown in FIG. 9B constitute a terminal interface and a wireless data transmission modem that enable data transmission between the master unit and the slave unit, respectively.

In addition, the line network control device 8 and the wired data modem 14 in FIG. 1 (a) enable the data transmission between another information processing device connected to the telephone line 10 and the line system control device and the wired system. Configures a data modem.

And the first in the base unit in the conventional cordless telephone
Although the antenna 1 to the telephone line 10 shown in FIG. 1A are connected to each other, in the present invention, the wireless data modem is used.
11 or the components of the wired data modem 14 are added.

FIG. 2 shows the details of the operation display sections 7 and 27 common to the master unit shown in FIG. 1 (a) and the slave unit shown in FIG. 1 (b).
Is a dial key pad, 62 is a status indicator, 63 is a mode switching switch, 64 is an automatic / manual switching switch, 65 is a data transmission switch for manual operation, and 66 is a data reception switch for manual operation. In addition, in the present invention, the components of the status indicator 62 or the data receiving switch 66 for manual operation are added to the configuration of the conventional cordless telephone.

Next, the operation of the main constituent elements in the embodiment shown in FIG. 1 will be described with reference to FIGS.

FIG. 3 is an explanatory view showing a signal path which can be performed by the cordrel telephone according to the present invention.

First of all, the line network control unit 8 includes a telephone line 10, a handset 5, a voice modem 3 and a wired data modem 14.
Continuously open or enable automatic incoming call in data communication via the telephone line 10, or enable automatic outgoing call from a data terminal or computer connected to the master or slave.

The wireless data modems 11 and 28 are paired with a master unit and a slave unit to enable pre-duplex communication. The wired data modem 14 complies with CCITT, and is used when communicating with another system via the telephone line 10 from the data terminal or computer connected to the master unit shown in FIG. 1 (a), or , Communicates with other systems similarly connected to the telephone line 10 from the data terminal connected to the child device shown in FIG. 1 (b) through the wireless data modem 28 of the child device to the wireless data modem 11 of the parent device. It is used when

On the other hand, the operation display sections 7 and 27 are, as shown in FIG.
Dial key pad 61, status indicator 62, mode switching switch 63, automatic / manual switching switch 64, manual data transmission switch 65, and manual data reception switch
It consists of 66. The status indicator 62 is composed of an LCD for displaying the operation modes of the master unit shown in FIG. 1 (a) and the slave unit shown in FIG. 1 (b). Here, the above-mentioned operation mode refers to each of the following modes.

Call mode as a normal cordless telephone (3rd
(See 71 or 72 in the figure.) Interface mode between the master and slave (73 in Fig. 3)
Data transmission mode between the base unit and the handset (see 76 in Fig. 3) Data transmission mode from the base unit via the telephone line (see 74 in Fig. 3) Data transmission from the handset to the base unit and the telephone line Mode (see 75 in Fig. 3) Mode in which the master unit works as a normal telephone connected to the telephone line and at the same time operates as a wireless modem that transmits data to and from the slave unit (see 77 in Fig. 3) The network controller 8 operates in the automatic call receiving mode,
When a call is received from the telephone line, the line is connected to the data terminal or computer connected to the master unit (see 74 in FIG. 3). The line network control device 8 operates in the automatic call receiving mode.
Mode in which the line is connected to the data terminal connected to the handset when receiving a call (see 75 in FIG. 3) The line network control device 8 operates in the automatic transmission mode,
Mode for calling from the base unit (see 74 in FIG. 3) The line network control device 8 operates in the automatic calling mode,
A mode in which a data terminal connected to a slave unit makes a call and is connected to a line via a master unit (see 75 in FIG. 3). Next, the mode switching switch 63 shown in FIG. 2 has been described above. In setting each mode, first, the switch is pressed and then the mode is selected by the dial key pad 61. Then, the slave unit and the master unit can remotely control the mode of the other party by a method similar to this.

FIG. 3 is an explanatory view showing paths of voice and communication data in the cordless telephone according to the present invention. And with 71
72 is a signal path that can be taken in a conventional cordless telephone. The communication data may be 74 to 77. Here, this 77 shows that the master unit makes a telephone call via a telephone line similarly to a general telephone, and at the same time, a data transmission path is formed between the master unit and the slave unit and operates independently.

FIG. 4 is a block diagram showing an example of use of the cordless telephone according to the present invention, in which (a) shows the master unit side.
(B) shows the slave unit side.

In FIG. 4, the same reference numerals as those in FIG. 1 indicate corresponding parts, 31 is a master unit, 32 is a computer, 33 is a slave unit, and 34 is a data terminal.

〔The invention's effect〕

As described above, according to the present invention, in the cordless telephone, the data terminal interface, the wireless data modem, and the remote control function of the operation mode are added to each of the parent device and the child device. As a result, the wireless data transmission circuit can be connected, and the cordless telephone mode and the wireless data communication mode can be switched as needed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing a portion related to an operation display section in FIG. 1, and FIG. 3 is provided for explaining the operation of FIG. FIG. 4 is an explanatory diagram showing signal paths, and FIG. 4 is a block diagram showing an example of use of the cordless telephone according to the present invention. 6 ... Control circuit, 7 ... Operation display unit, 8 ... Line network control device, 9 ... Line interface, 10 ... Telephone line, 11
...... Wireless data modem, 12 ...... Terminal interface, 14
...... Wired data modem, 26 …… Control circuit, 27 …… Operation display, 28 …… Wireless data modem, 29 …… Terminal interface.

Claims (1)

[Claims] 1. A cordless telephone system comprising a slave unit wirelessly coupled to a master unit connected to a telephone line, wherein a voice transmission and connection control circuit provided in the master unit, the master unit and the slave unit. Wireless data transmission modems respectively provided in the base unit, switching means for switching between the cordless telephone mode and the wireless data transmission modem mode respectively provided in the master unit and the slave unit, and mutual counterparts provided in the master unit and the slave unit. And a remote control means for switching between the cordless telephone mode and the wireless data transmission modem mode by remote control.