JPH0575538A - State data interception system for cordless telephone set - Google Patents

Abstract

PURPOSE:To report the state of a working slave set in real time and in a short time through an unused set by providing a radio unit to a master set to form a radio link between the master set and the working slave set. CONSTITUTION:A radio link 500 is formed between a working set 200 and a master set 100. Then an unused set 300 intercepts the data signal on the using state of the set 200 which is transmitted to the set 200 from the set 100 via the link 500. The state of the set 200 is decided based on the intercepted data signal and this deciding result is displayed by an LED circuit 303 of the set 300.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a state data interception system in a cordless telephone, and in particular, the use sent from the master unit to the slave unit after forming a wireless link between the slave unit and the master unit. The present invention relates to a state data interception method in a cordless telephone in which an unused slave unit intercepts a data signal regarding the usage state of the slave unit and notifies the unused slave unit of the usage state of the slave unit.

[0002]

2. Description of the Related Art Conventionally, this type of device sends data to a master unit when a slave unit starts a call by radio, converts the data there, and uses another new wireless link. It was configured to send to an unused child device and display the usage status.

According to this conventional apparatus, at least two radio units are required, which is expensive and costly, and there is a problem that the master unit becomes large. To solve this problem, the master unit wireless unit is solved. If the number is set to one, there is a problem that the unused slave unit cannot know the usage state of the slave unit.

Further, according to this conventional apparatus, it takes time to convert the data transmitted from the used slave unit to the data to be transmitted to the unused slave unit, and the slave unit whose status is to be displayed. There was also the problem of slower display.

[0005]

As described above, in the conventional cordless telephone, when the usage status of the slave unit is displayed on the unused slave unit, the master unit displays the usage status display data. -There was a problem in that it was necessary to separately provide a wireless unit for forming a wireless link for transmitting data. Further, according to this device, there is a problem that it takes time to convert the data and the display is delayed with respect to the slave unit which should display the state.

Therefore, the present invention eliminates this problem and provides only one wireless unit for forming a wireless link between the master unit and the slave unit used, and the slave unit used in the unused slave unit is eliminated. It is an object of the present invention to provide a state data interception method in a cordless telephone capable of notifying the user of the usage status of the mobile phone, and notifying the notification in real time.

[0007]

In order to achieve the above object, in the present invention, in a cordless telephone composed of one master unit and a plurality of slave units, one of the plurality of slave units is Means for forming a wireless link between an optional slave unit and the master unit, and a usage state of the slave unit sent from the master unit to the slave unit after the wireless link is formed by the forming unit Means for intercepting a data signal relating to another unused slave unit, and a notifying unit for determining the usage state of the used slave unit from the intercepted data signal and notifying the determination result in the unused slave unit. It is characterized by having.

[0008]

[Operation] After the wireless link is formed between the used slave unit and the master unit,
An unused slave unit intercepts a data signal transmitted from the master unit to the slave unit that is in use, determines the status of the slave unit that is used based on the intercepted data signal, and the result of the determination is unused. The notification means of the child device notifies. As a result, the use state of the used slave unit can be known in the unused slave unit by providing only one wireless unit in the master unit.

[0009]

FIG. 1 is a block diagram showing a cordless telephone constructed by applying an embodiment of a state data interception system in a cordless telephone according to the present invention. In FIG. 1, the cordless telephone of this embodiment is
It is composed of one master unit 100 and two slave units 200 and 300, and the master unit 100 is provided with a station line circuit 101 and a control circuit 11 connected to a station line 400, and a control unit 102 including a wireless unit 12. The slave device 200 includes a wireless unit 201, a control circuit 202, and an LED circuit 203. The slave device 300 includes a wireless unit 301, a control circuit 302, and an LED circuit 303.

In this structure, the slave unit 200 is the master unit 1.
When making a call via 00, a wireless link 500 is formed between the wireless unit 201 of the slave 200 and the wireless unit 12 of the master 100. The configuration of the wireless link 500 is realized by transmitting and receiving a predetermined control signal between the wireless unit 201 of the child device 200 and the wireless unit 12 of the parent device 100.

When the wireless link 500 is formed, the base unit 100 connects to the other party, and when this connection is completed, the wireless link 500 transmits a control signal (data signal) including data indicating the connection content. To the used child device, in this case, the child device 200.

In addition, an unused child device other than the used child device, in this case, the child device 300, first forms a wireless link 500 between the wireless unit 201 of the child device 200 and the wireless unit 12 of the parent device 100. In this case, the control signal transmitted / received between the slave unit 200 and the master unit 100 is intercepted, and the slave unit 300 is switched to the same wireless channel as the slave unit 200 used.
The control signal (data signal) including the data indicating the connection content transmitted from the base unit 100 to the use slave unit 200 after receiving the signal transmitted from the master unit to the use slave unit 200.
To intercept. Then, the usage state of the used child device 200 is judged from the content of this data signal, and this is used as the unused child device 30.
Display at 0.

FIG. 2 shows a detailed configuration of the slave units 200 and 300. In FIG. 2, the slave unit 30 which is an unused slave unit.
The details of 0 are shown. The configuration of the child device 200, which is the child device used here, is also the same as the configuration of the child device 300 shown in FIG.

In FIG. 2, a cordless handset 300 includes a wireless unit 301, a control unit (CPU) 302, and an LED (light emitting diode) 303 for displaying the use state of the cordless handset used.
LED circuit 303 including a and 303b, modem 304,
The communication circuit 305, the transmitter 306, the receiver 307, and the antenna 308 are provided, the antenna 308 is connected to the wireless unit 301, and the LED circuit 303 is the CPU 30.
2, the transmitter 306 and the receiver 307 are connected to the communication circuit 305.

The modem 304 is a radio unit 301, C
PU302, which is connected to the call circuit 305, demodulates a signal received through the wireless unit 301 and adds the signal to the CPU 302 or the call circuit 305, applies a predetermined modulation to the signal from the CPU 302 or the call circuit 305, and adds the signal to the wireless unit 301 ..

The CPU 302 controls the LED circuit 303 and also controls the radio unit 301, the modem 304, and the call circuit 305.

Here, for example, when a call is made from the child device 300 and a call is made via the parent device 100 shown in FIG. 1, a wireless link is established between the CPU 302 of the child device 300 and the parent device 100. A control signal for forming the control signal is generated, the control signal is transmitted to the wireless unit 12 of the parent device 100 via the modem 304, the wireless unit 301, and the antenna 308, and the control signal from the wireless unit 12 of the parent device 100 is transmitted to the antenna. The wireless link is formed between the child device 300 and the parent device 100 by the reception by the CPU 302 via the wireless unit 301 and the modem 304. In this state, the voice signal input from the transmitter 306 of the handset 300 is transmitted to the base unit 100 via the call circuit 305, the modem 304, the wireless unit 301, and the antenna 308, and the voice signal from the base unit 100 is transmitted. Is applied to the handset 307 via the antenna 308, the wireless unit 301, the modem 304, and the call circuit 305, and the voice corresponding to this voice signal is output from the handset.

Since the slave unit 300 is an unused slave unit in this case, no call is made through the master unit 100, and the call is made at the slave unit 200 which is the used slave unit. That is, here, the slave unit 300 is first the slave unit 20.
0 radio unit 201 and base unit 100 radio unit 1
When the wireless link 500 is formed between the slave unit 20 and
0 intercepts the control signal transmitted and received between 0 and the base unit 100,
The slave unit 300 is switched to the same wireless channel as that of the slave unit 200 in use, and a signal transmitted from the master unit 100 to the slave unit 200 in use is received.
The control signal (data signal) including the data indicating the connection content transmitted to 00 is intercepted, the usage state of the usage slave device 200 is judged from the content of this data signal, and the LED circuit 303 is driven by the control of the CPU 302. LED303
The lighting states of a and 303b are controlled to display the usage state of the used slave device 200. Here, the lighting of the LED 303a indicates that the cordless handset 200 is in an external line communication state, and the LED
Illumination of 303b indicates that the cordless handset 200 is in the extension communication state, and when both the LED 303a and the LED 303b are off, it indicates the line disconnection state.

FIG. 3 is a sequence diagram showing an example of a wireless link forming sequence between a master unit and a slave unit in this embodiment.

In FIG. 3, a wireless link is formed between the used slave unit 200 and the master unit 100 by a call from the slave unit 200, and the use state of the used slave unit 200 at this time is indicated as an unused slave unit 300. Shows the control displayed in.

First, in order for the cordless handset 200 to make a call, the data of the call origination request is sent to the parent device 10 using the control channel.
Send to 0. In response to this, the master unit determines the call channel with the slave unit 200 to be used, and the data of this call channel designation is set.
Data is returned to the used child device 200 using the control channel. As a result, the base unit 100 switches the radio channel to the call channel indicated by the data designated by the call channel, and the slave unit 200 also switches the radio channel to the call channel indicated by the data designated by the call channel. In addition, at this time, the unused child device 300 is changed from the parent device 100 to the used child device 20.
The data specified in the above-mentioned call channel transmitted to 0 is intercepted, and the unused handset 300 confirms that this data is the data specified in the call channel, and the wireless channel is designated as this call channel. Switch to the call channel indicated by the data.

When the handset unit 100 completes the switching to the call channel, the handset unit 200 sends data indicating the completion of the call channel switching to the base unit 100. When the parent device 100 receives this data, it connects to the other party and returns the connection completion data to the used child device 100. This data is also intercepted by the unused child device 300, and is processed in the order of the wireless unit 301 → modem 304 → CPU 302 in FIG. 2, where the data of connection completion is the data of external line capture.
If it is data, the external line status display LED 303a of FIG. 2 is turned on, and if it is data for capturing the internal line, the internal line status display LED 303b of FIG. 2 is turned on.

In this state, next, the child device 200 to be used.
When the call ends, the use slave unit 200 sends the disconnection request data to the master unit 100. In response to this, the master unit 100 returns the disconnection data to the used slave unit 200. As a result, the base unit 100
Also, both of the cordless handsets 200 switch from the call channel to the control channel. The disconnection data sent from the master unit 100 to the used slave unit 200 also intercepts the unused slave unit 300, and the unused slave unit 300 switches the communication channel to the control channel and disconnects the data. 2 in the order of wireless unit 301 → modem 304 → CPU 302, and turns off the outside line status display LED 303a or the inside line status display LED 303b in FIG. When this series of operations is completed, the initial state is restored.

FIG. 4 is a flowchart showing the operation of the unused child device 300 in the example of the wireless link sequence shown in FIG. First, unused cordless handset 3
00 intercepts the control channel data sent from the base unit 100 to the use slave unit 200 (step 311), and checks whether or not the data is the communication channel designated data (step 312). Here, if the data is the communication channel designated data, the communication channel is switched to the designated communication channel, and the data transmitted from the master unit 100 to the used slave unit 200 is intercepted by this communication channel (step 313). If the data is not the designated data, the data transmitted from the parent device 100 to the used child device 200 is continuously intercepted on the control channel (step 311). This continues until the data for the call channel is detected.

Next, when data is intercepted on the call channel,
The data is checked (step 314), if it is the data for external line connection, the external line status display LED is turned on (step 316), and if it is the data for internal line connection, the internal line status display LED is displayed. It is turned on (step 317). Then, the process returns to the process of intercepting the call channel (step 31
3) This operation is continued until disconnection data is detected.

In this way, when the disconnection data arrives (step 314), the outside line status display LED that has been lit is lit.
Alternatively, the extension status display LED is turned off (step 31
5) Return to the process of intercepting the data of the control channel sent from the master unit 100 to the slave unit 200 (step 31).
1).

In the above embodiment, the operating state of the used slave unit is visually notified by the LED in the unused slave unit. However, in addition to this, voice notification based on one interception data,
Remote control is also possible.

[0028]

As described above, according to the present invention, the wireless link sequence between the used slave unit and the master unit and the wireless link channel are always tuned to the used wireless link channel to be intercepted by the unused slave unit, Since it is configured to obtain the data indicating the usage state of the used child device, it is not necessary to use a plurality of wireless units as in the conventional device, and the used child device can be used simultaneously. There is an advantage that the unused slave device can be notified of the usage state of the used slave device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a cordless telephone configured by applying an embodiment of a state data interception system in a cordless telephone according to the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a child device in the embodiment shown in FIG.

3 is a sequence diagram showing an example of a wireless link forming sequence between a master unit and a slave unit in the embodiment shown in FIG.

FIG. 4 is a flowchart showing the operation of an unused slave unit in the wireless link sequence example shown in FIG.

[Explanation of symbols]

 11 Control Circuit 12 Wireless Unit 100 Master Unit 101 Station Line Circuit 102 Control Unit 200 Slave Unit 201 Wireless Unit 202 Control Circuit 203 LED Circuit 300 Slave Unit 301 Wireless Unit 302 Control Circuit 303 LED Circuit 303a External Line Status Display LED 303b Internal Line Status Display LED 304 modem 305 communication circuit 306 transmitter 307 receiver 308 antenna

Claims (1)

[Claims] 1. A cordless telephone composed of one master unit and a plurality of slave units, wherein a wireless link is formed between an optional slave unit of the plurality of slave units and the master unit. Means for intercepting a data signal relating to the usage state of the used slave unit from the master unit to the used slave unit after a wireless link is formed by the forming unit in another unused slave unit, State data interception in a cordless telephone, comprising: an informing unit for determining the use state of the used slave unit from the intercepted data signal and notifying the determination result in the unused slave unit. method.