JPH0779478A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To obtain a cordless telephone set having a function of calling only a slave set designated by an external line side in the cordless telephone set having plural slave sets. CONSTITUTION:When a call comes from an external line, it is detected by a data processing section 2 via an interface section 1 and informed to a control section 3. The control section 3 starts a reply signal output circuit 6 to set the line into a speech state and a message output section 7 outputs a message to urge a designation signal from a slave set. When a slave set is designated, a data processing section 2 generates a slave set call signal and the radio display section 4 modulates the call signal to provide an output of a radio signal. The master set starts a voice processing section 5 by the reply of the slave set receiving the call signal to start talking between the slave set and the external line. Furthermore, when no reply comes from the slave set, it is informed to the caller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone system comprising a master unit connected to an outside line and a plurality of slave units callable by the master unit.

[0002]

2. Description of the Related Art In recent years, wireless telephones such as cordless telephones have been remarkably developed, and the number of users is increasing. Taking advantage of the feature of the cordless telephone system, which does not require signal line connection, there are many usages in which only one base unit is connected to the outside line and multiple slave units are installed in each room. Cordless telephone devices with mobile handsets are gaining popularity.

A cordless telephone device having a plurality of cordless handsets will be described below with reference to the drawings. FIG. 3 shows a block configuration of a base unit of a conventional cordless telephone device. Figure 3
In FIG. 1, 1 is an interface unit for exchanging voice signals and incoming signals with an outside line, 2 is processing of control data from a handset such as dial digit signal and call response signal, generation of a call signal for the handset and external line A data processing unit for detecting a call signal, a control unit for controlling the entire telephone device, a radio unit for transmitting / receiving signals and modulating / demodulating signals,
Reference numeral 5 denotes an audio processing unit that processes an audio signal including an expander, a compander, a compressor, and the like.

The operation of the cordless telephone device constructed as above will be described. First, when an incoming call is received from an outside line, the signal is detected by the data processing unit 2 via the interface unit 1 and transmitted to the control unit 3. The control unit 3 enters the calling sequence of the child devices and outputs a calling control signal for calling all the registered child devices to the data processing unit 2. The data processing unit 2 generates call signals for all the slaves according to the call control signal and outputs the call signals to the wireless unit 4. The wireless unit 4 modulates the calling signal to generate and output a wireless signal. Upon receiving the call signal, the child device informs the user that an incoming call is received by ringing a bell or the like. When the user of one of the cordless handsets responds by pressing the call button,
A call response signal is output. Upon receiving the call response signal, the master unit activates the voice processing unit 5 to start a call between the outside line and the slave unit that responded.

[0005]

However, in the cordless telephone device having such a configuration, all the slave units respond to the incoming call from the outside line, so that the person who answers first makes a call. There was a problem that it was necessary to hear and transfer the person who requested the call from the other party.

The present invention solves the above-mentioned problems of the prior art, and is a cordless telephone having a function of automatically calling only a slave unit of a desired user by an operation from a calling party. The purpose is to provide a device.

[0007]

In order to achieve this object, the present invention is directed to an automatic incoming call unit which automatically answers when an incoming call is received from an outside line, and a slave unit designation signal sent from the outside line. And a control unit for controlling so that only the designated slave unit is called in accordance with the slave unit designation signal sent from the registered slave units.

[0008]

According to the above configuration, when the base unit detects an incoming call from an outside line, it automatically responds to bring the line into a call state, and thereafter,
When a signal for designating a child device is sent, only that child device is called, and when the called child device responds, a call between the outside line and the designated child device is started.

[0009]

Embodiments will be described in detail below with reference to the drawings. It should be noted that components having the same effects as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 shows a first embodiment of the present invention, which is a block configuration of a base unit of a cordless telephone device. In FIG. 1, 1 is an interface unit, 2 is a processing unit for processing control data from a slave unit such as dial digit signal and call response signal, generation of a call signal for a designated slave unit, incoming signal from an external line, and slave unit. The data processing unit 3 for detecting the specified signal of the call, the end signal from the handset, etc. automatically responds when there is an incoming call from an outside line, and a series of sequences, for example, a message to the message output unit described later A control unit that performs control such as outputting an output command, 4 is a wireless unit, 5 is a voice processing unit, 6 is a response signal output circuit that generates and outputs a response signal to an incoming call signal from an outside line, and 7 is This is a message output unit that outputs a message prompting the designation of a slave unit, a message notifying that communication with the slave unit is impossible, and the like.

FIG. 2 is a flow chart showing a control flow of the cordless telephone device of the present invention, and shows a sequence of calling a designated handset when there is an incoming call from an outside line in the cordless telephone device of the present invention.

Next, the operation of the first embodiment will be described. When an incoming call is received from an outside line, an incoming call signal is detected by the data processing unit 2 via the interface unit 1 and an incoming call detection signal is transmitted to the control unit 3. When the incoming call detection signal is transmitted, the control unit 3 first activates the response signal output circuit 6 to put the line into a call state in response to the incoming call from the outside line. Next, the message output unit 7 is activated to output a message prompting the designation signal of the slave unit to the caller. When the caller designates the number of the slave unit, and the signal is detected by the data processing unit 2 and transmitted to the control unit 3, the control unit 3 starts the sequence of calling the designated slave unit and designates it. A call control signal for calling the slave unit is output to the data processing unit 2.
The data processing unit 2 generates a calling signal for the designated child device according to the calling control signal and outputs it to the wireless unit 4. The wireless unit 4 modulates the calling signal to generate and output a wireless signal.

When the designated slave unit is in the standby state within the communication range, the designated slave unit that has received the call signal notifies the user that there is an incoming call by ringing a bell, etc. When the person answers by pressing the call button or the like, a call response signal is output. Upon receiving the call response signal, the master unit activates the voice processing unit 5 to start a call between the outside line and the designated slave unit.

When the designated slave unit cannot respond to the call from the master unit because it is out of the communication range or the power is turned off, the control unit 3 outputs the call control signal in advance from the output. When the set time has passed,
The message output unit 7 is activated again, the fact that the designated slave unit was not able to be called is output, and a message asking whether to call another slave unit is output to the caller.
When the caller designates the number of another slave unit, the calling of the slave unit newly designated by the caller is started again as described above.

Next, the operation of the cordless telephone device of the present invention at the end of a call will be described. When the call end signal is sent from the outside line side, the call end signal is sent to the child device, and the communication between the parent device and the child device is also terminated. When the call termination signal is sent from the child device, the call termination signal from the child device is detected by the data processing unit 2 and transmitted to the control unit 3. When the call end signal from the slave unit is transmitted, the control unit 3 activates the message output unit 7 and outputs a message prompting the designation signal of the next slave unit to the caller. After that, as in the case of the above-mentioned incoming call, the designated signal of the slave unit is waited for from the outside line, and the designated slave unit is called.

Finally, the second embodiment will be described.
The cordless telephone system of this embodiment is also realized by the same configuration as that of the first embodiment. Here, differences from the first embodiment will be described. The cordless telephone device of the second embodiment can also be used as a cellular telephone, and each has its own telephone number. The designation of the cordless handset from the outside line is performed using the telephone number of this cellular telephone. That is, if the cellular phone number of the cordless handset the caller is trying to call is 987-6543, the caller is required to enter the 987 message after the message prompting the designation signal of the cordless handset.
You can specify the cordless handset by dialing −6543.

[0016]

As described above, according to the present invention, an incoming call from an outside line is automatically answered, and the caller can designate a specific child device. This eliminates the need to perform the call, and also protects the privacy of the calling party.

[Brief description of drawings]

FIG. 1 is a diagram showing a block configuration of a base unit of a cordless telephone device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing control of the cordless telephone device according to the embodiment of the present invention.

FIG. 3 is a diagram showing a block configuration of a base unit of a conventional cordless telephone device.

[Explanation of symbols]

1 ... Interface part, 2 ... Data processing part, 3 ...
Control unit, 4 ... Wireless unit, 5 ... Voice processing unit, 6 ... Response signal output circuit, 7 ... Message output unit.

Claims (5)

[Claims] 1. A cordless telephone apparatus comprising a plurality of cordless handsets and a parent device to which the cordless handsets can be connected, and an automatic call receiving unit which automatically answers when an incoming call is received from an outside line, and an outside call sent from the outside line It has a detection unit for detecting a designated signal of the incoming slave unit, and a control unit for controlling so that only the designated slave unit is called according to the designated signal of the slave unit sent from the registered slave units. A cordless telephone device. 2. A cordless telephone device comprising a plurality of slave units having a telephone number of a cellular telephone different from that of the master unit and capable of communicating with a cellular base station, and a master unit capable of connecting the slave units. , An automatic incoming call unit that automatically answers when an incoming call is received from an outside line, a detection unit that detects the cellular telephone number of the child device sent from the outside line to specify the child device, and a registered child device A cordless telephone device having a control unit for controlling so that only a designated slave unit is called according to a designation signal of the slave unit sent from the inside. 3. The cordless telephone device according to claim 1, further comprising a message output unit that outputs a message for designating a handset after an automatic incoming call. 4. The cordless telephone device according to claim 1, further comprising a message output unit that outputs a message indicating that a communication cannot be established with a designated slave unit from an outside line. 5. A message output unit for outputting a message to specify the slave unit again when the communication with the slave unit designated from the outside line is terminated by the end of the call from the slave unit side. The cordless telephone device according to claim 1.