JP3099982B2 - Wireless communication device - 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] The present invention relates to a radio communication apparatus, and more particularly, to a method for transmitting a data signal relating to a use state of a radio communication apparatus used from a connection apparatus to the radio communication apparatus after a radio link is established between the radio communication apparatus and the connection apparatus. The present invention relates to a wireless communication device in which a used wireless communication device intercepts and notifies the unused wireless communication device of the use state of the used wireless communication device.

[0002]

2. Description of the Related Art Conventionally, a one-way voice call system for a wireless communication device using a wireless communication device such as a cordless telephone has been performed by providing two wireless units in a parent device as a connection device.

According to this conventional apparatus, at least two wireless units are required, which is costly and disadvantageous in that the base unit is enlarged, and the like. However, when the number is set to one, there is a problem that the use state of the used slave unit cannot be known in the unused slave unit.

Further, according to this conventional device, it takes time to convert data transmitted from a used slave to data to be transmitted to an unused slave, and it takes a long time, and a slave to display a state is required. However, there is a problem that the display becomes slow.

[0005]

As described above, in the above-mentioned conventional wireless communication device such as a cordless telephone, the use status of the wireless communication device is displayed on the unused communication device by the connection device. There is a problem that it is necessary to separately provide a wireless unit for forming a wireless link for transmitting data for use status display in a certain master unit. Also,
According to this device, there is a problem that it takes time to convert data and the like, and display is delayed for a wireless communication device for which a state is to be displayed.

Therefore, the present invention eliminates this problem and provides only one wireless unit for forming a link with a wireless communication device used in a connection device, and uses an unused wireless communication device in an unused wireless communication device. An object of the present invention is to provide a wireless communication device that can notify the use state of a communication device, and can perform this notification in real time without taking much time.

[0007]

To achieve the above object, the present invention comprises a connecting device connected to a wired line and a plurality of wireless communication devices connected to the connecting device via a wireless line. Forming means for forming a wireless link between any one of the plurality of wireless communication devices and the connection device; and forming the wireless link by the formation means. And a signal indicating whether the wireless communication device transmitted and received between the wireless communication device and the wireless communication device is in a communication state with the wired line via the connection device or in a communication state with another wireless communication device. Transmitting and receiving means for transmitting and receiving by a wireless communication device not forming a wireless link with the device; and the wireless communication device having a wireless link formed with the connection device based on signals transmitted and received by the transmitting and receiving means, wherein And a notifying unit for judging whether the communication state is in a communication state with another wireless communication device and notifying the determination result by a wireless communication device in which the wireless link is not formed. I do.

[0008]

When a wireless link is established between the wireless communication device and the connection device, the wireless communication device transmitted from the connection device to the wireless communication device is in communication with the wired line via the connection device. A signal indicating whether or not the wireless communication device is in a communication state is transmitted / received to / from a wireless communication device having no wireless link formed with the connection device, and the wireless communication device transmits the signal based on the transmitted / received signal to the wired line via the connection device. It is determined whether the wireless communication device is in a communication state with the wireless communication device or another wireless communication device, and the wireless communication device that does not form a wireless link notifies the determination result by the notification means. . According to such a configuration, the wireless communication device in which the wireless link is formed is in a communication state with the wired line via the connection device or a communication with another wireless communication device only by providing one wireless unit in the connection device. Whether the state is in the state can be notified by the wireless communication device in which the wireless link is not formed.

[0009]

FIG. 1 is a block diagram showing a cordless telephone constructed by applying an embodiment of a state data interception method in a cordless telephone according to the present invention. In FIG. 1, the cordless telephone of this embodiment is
The main unit 100 includes a main unit 100 and two sub units 200 and 300. The main unit 100 includes a local line circuit 101 connected to a local line 400, a control circuit 11, and a control unit 102 including a wireless unit 12. The slave unit 200 is configured to include a wireless unit 201, a control circuit 202, and an LED circuit 203, and the slave unit 300 is configured to include a wireless unit 301, a control circuit 302, and an LED circuit 303.

In such a configuration, the child device 200 is
When a telephone call is made 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 slave 200 and the wireless unit 12 of the master 100.

When wireless link 500 is established, master unit 100 establishes a connection with the other party, and upon completion of this connection, transmits a control signal (data signal) including data indicating the content of the connection to wireless link 500. Is transmitted to the child device 200, in this case, the child device 200.

An unused slave unit other than the slave unit, ie, the slave unit 300 in this case, first forms a wireless link 500 between the wireless unit 201 of the slave unit 200 and the wireless unit 12 of the master unit 100. In doing so, it intercepts a control signal transmitted and received between the child device 200 and the parent device 100 and switches the child device 300 to the same wireless channel as that of the child device 200 to be used.
Becomes a receiving state of a signal transmitted from the base unit 100 to the slave unit 200, and thereafter, a control signal (data signal) including data indicating the connection content transmitted from the master unit 100 to the slave unit 200.
Intercept. Then, the use state of the slave unit 200 is determined from the content of the data signal, and the state of the slave unit 30 is determined.
Display at 0.

FIG. 2 shows a detailed configuration of the slaves 200 and 300. In FIG.
0 shows the details. The configuration of the child device 200 used here is also the same as the configuration of the child device 300 shown in FIG.

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

The modem 304 includes a wireless unit 301, C
The PU 302 is connected to the communication circuit 305, demodulates a signal received via the wireless unit 301, applies the signal to the CPU 302 or the communication circuit 305, performs predetermined modulation on a signal from the CPU 302 or the communication circuit 305, and applies the signal to the wireless unit 301. .

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

Here, for example, when a call is made from the slave unit 300 and a call is made via the master unit 100 shown in FIG. 1, a wireless link is established between the CPU 302 of the slave unit 300 and the master unit 100. A control signal for generating the control signal is generated, and the control signal is transmitted to the wireless unit 12 of the base unit 100 via the modem 304, the wireless unit 301, and the antenna 308, and the control signal from the wireless unit 12 of the base unit 100 is transmitted to the antenna. A wireless link is formed between the slave unit 300 and the master unit 100 by receiving the information from the CPU 302 via the wireless unit 301, 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 communication circuit 305, the modem 304, the wireless unit 301, and the antenna 308, and the voice signal from the base unit 100 Is applied to the receiver 307 via the antenna 308, the wireless unit 301, the modem 304, and the communication circuit 305, and a sound corresponding to the audio signal is output from the receiver.

In this case, since the child device 300 is an unused child device, the telephone call is not made via the above-mentioned parent device 100, and the above-mentioned telephone call is made in the child device 200 which is the used child device. That is, here, the child device 300 first
0 wireless unit 201 and wireless unit 1 of base unit 100
When the wireless link 500 is formed between
Intercept a 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 to be in a state of receiving a signal transmitted from the master unit 100 to the slave unit 200.
A control signal (data signal) including data indicating the connection content transmitted to 00 is intercepted, the use state of the slave unit 200 is determined from the content of the data signal, and the LED circuit 303 is driven under the control of the CPU 302. And LED 303
a, 303b to control the lighting state, and display the usage state of the slave unit 200. Here, the lighting of the LED 303a indicates that the slave unit 200 is in the outside line communication state.
Lighting of 303b indicates that the slave unit 200 is in an extension call state, and when both the LED 303a and the LED 303b are off, the line is disconnected.

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

In FIG. 3, a radio link is formed between the slave unit 200 and the master unit 100 by calling from the slave unit 200, and the usage state of the slave unit 200 at this time is changed to the unused slave unit 300. Indicates the control to be displayed.

First, in order for the slave unit 200 to make a call, data of a call request is transmitted to the master unit 10 using the control channel.
Send to 0. In response to this, the base unit determines a communication channel with use slave unit 200, and specifies the data of the communication channel.
Is returned to the slave unit 200 using the control channel. Thereby, base unit 100 switches the radio channel to the communication channel indicated by the data for specifying the communication channel, and mobile unit 200 also switches the wireless channel to the communication channel indicated by the data for specifying the communication channel. At this time, the unused slave unit 300 is moved from the master unit 100 to the slave unit 20.
0, and intercepts the data for specifying the communication channel, and the unused slave unit 300 confirms that the data is the data for specifying the communication channel, and assigns the wireless channel to the communication channel. Switch to the communication channel indicated by the data.

When the switching to the communication channel is completed in the slave unit 100, the slave unit 200 transmits data indicating the completion of the switch to the master unit 100. Upon receipt of this data, master unit 100 establishes a connection with the other party and returns data of the connection completion to use slave unit 100. This data is also intercepted by the unused slave unit 300, and is processed in the order of the wireless unit 301 → the modem 304 → the CPU 302 in FIG.
If it is data, the external line status display LED 303b of FIG. 2 is turned on.

In this state, next, the slave unit 200 is used.
Is terminated, the slave unit 200 sends the data of the disconnection request to the master unit 100. In response, master device 100 returns disconnection data to use slave device 200. Thereby, master device 100
And both the handset 200 switch from the call channel to the control channel. Further, the disconnection data sent from the base unit 100 to the slave unit 200 is also intercepted by the unused slave unit 300. In the unused slave unit 300, the communication channel is switched to the control channel and the disconnection data is also transmitted. Is processed in the order of the wireless unit 301 → the modem 304 → the CPU 302 in FIG. 2 to turn off the external line state display LED 303 a or the internal line state display LED 303 b in FIG. When this series of operations is completed, the operation returns to the initial state.

FIG. 4 is a flowchart showing the operation of the unused slave unit 300 in the example of the wireless link sequence shown in FIG. First, the unused slave unit 3
00 intercepts the data of the control channel sent from the master unit 100 to the slave unit 200 (step 311), and checks whether it is the data for specifying the communication channel (step 312). If the data is a communication channel designation data, the communication channel is switched to the designated communication channel, and data transmitted from the base unit 100 to the slave unit 200 on this communication channel is intercepted (step 313). If the data is not the designated data, it continues to intercept the data sent from the parent device 100 to the child device 200 on the control channel (step 311). This is continued until data for specifying the speech channel is detected.

Next, when data is intercepted on the speech channel,
The data is checked (step 314). If the data is external connection data, the external line status display LED is turned on (step 316). If the data is internal connection data, the extension status display LED is turned on. The light is turned on (step 317). Then, the process returns to the process of intercepting the communication channel (step 31).
3) This operation is continued until disconnection data is detected.

In this way, when the disconnection data comes (step 314), the illuminated outside line status display LED
Alternatively, the extension state display LED is turned off (step 31).
5), the process returns to the process of intercepting the data of the control channel sent from master device 100 to use slave device 200 (step 31).
1).

In the above embodiment, the operating state of the slave unit is visually reported by the LED in the unused slave unit.
Remote control is also possible.

[0028]

As described above, according to the present invention, the radio link sequence and the radio link channel between the radio communication device used and the connection device are intercepted by the radio communication device which is not used by the unused radio communication device. In addition, since the configuration is such that data indicating the use state of the wireless communication device used is obtained, there is no need to use a plurality of wireless units as in the case of the conventional device. At the same time, there is an advantage that the use state of the used wireless communication device can be notified to the unused wireless communication device.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a detailed configuration of a slave unit in the embodiment shown in FIG.

FIG. 3 is a sequence diagram showing an example of a wireless link formation sequence between a parent device and a child device in the embodiment shown in FIG. 1;

FIG. 4 is a flowchart showing the operation of an unused slave unit in the wireless link sequence example shown in FIG. 3;

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 control circuit 12 wireless unit 100 base unit 101 local 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 303 a external line status display LED 303 b internal line status LED 304 Modem 305 Communication circuit 306 Transmitter 307 Receiver 308 Antenna

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-37744 (JP, A) JP-A-4-72733 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04B 7/24-7/26 102 H04Q 7/00-7/38

Claims (1)

(57) [Claims] 1. A wireless communication device comprising: a connection device connected to a wired line; and a plurality of wireless communication devices connected to the connection device via a wireless line, wherein: Forming means for forming a wireless link between an arbitrary wireless communication device and the connection device; and forming the wireless link by the formation means, wherein the wireless communication transmitted and received between the connection device and the wireless communication device A signal indicating whether the device is in communication with the wired line via the connection device or in communication with another wireless communication device is transmitted and received by the wireless communication device having no wireless link formed with the connection device. A transmission / reception unit, wherein the wireless communication device having a wireless link formed with the connection device based on a signal transmitted / received by the transmission / reception device is in a communication state with the wired line or in a communication state with another wireless communication device. And a notifying unit for notifying the result of the judgment by a radio communication device not having the radio link.