JPH0815348B2 - Control method for wireless telephone device - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a method for controlling a wireless telephone device capable of controlling connection with a plurality of wireless telephones by a single parent device, and particularly to a plurality of wireless telephones. The present invention relates to a method for reducing the power consumed by the device.

BACKGROUND OF THE INVENTION A wireless telephone device including a parent device connected to a wired telephone line and a wireless telephone connected to the parent device via a wireless line includes, for example, a cordless telephone device. A cordless telephone device is composed of a parent device (connection device) connected to a wired telephone line and a wireless telephone provided in a one-to-one correspondence with the parent device. The wireless line from the wireless telephone to the parent device is The signal of frequency f ₁ and the wireless line from the parent device to the wireless telephone are fixedly set as the signal of frequency f ₂ . Therefore, when using two wireless telephones, it was necessary to provide two parent devices.

[Problems of Background Art] However, in the case of a wireless telephone device having such two wireless telephones and a parent device, generally, two wireless telephones are not used at the same time, and two parent devices are not used at the same time. Possession is not economically advantageous.

In addition, in order to make effective use of frequency resources, the wireless link between the parent device and the wireless telephone has recently determined a frequency to be used by using a common control channel among a plurality of parent devices, and then a call corresponding to the frequency. A configuration is adopted in which a so-called multi-channel access method is adopted to establish a channel. However, when this multi-channel access method is adopted, in the configuration in which a parent device is provided for each of the above two wireless telephones, when an incoming call is received from a wired telephone line, the two parent devices are connected using a control channel. The control is started at the same time, and in this case, the radio waves of the control channels interfere with each other, and the connection control may be disabled.

Further, in this type of wireless telephone device, it is preferable that each wireless telephone device perform an intermittent reception operation (battery saving operation) in order to reduce power consumption, but if all wireless telephones are configured to perform a battery saving operation. The configuration becomes very complicated, and the power consumed by all wireless phones becomes considerable. Furthermore, according to such a configuration, the battery of each wireless phone can be exhausted (the voltage of the battery of each wireless phone becomes less than the specified voltage). ) The times are almost the same, in which case multiple wireless telephones cannot be used at the same time. This is not desirable for this type of wireless telephone device.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and enables connection control with a plurality of wireless telephones by using one parent device and reduces power consumption in the plurality of wireless telephones. It is an object of the present invention to provide a method for controlling a wireless telephone device that aims at the above.

[Outline of the Invention] According to the present invention, a parent device connected to a wired line,
A method of controlling a radiotelephone device comprising a plurality of radiotelephones connected to the parent device via a radio line, wherein at least one radiotelephone among the plurality of radiotelephones waits for at least a receiver to be turned on. When a call is made from the wireless telephone set to the standby state while the other wireless telephone is turned off, the receiver and transmitter are both turned off. When the transmitter is turned on, a call signal is transmitted from the transmitter to the parent device to establish a wireless line with the parent device and shift to a call state with the wired line through the parent device. When making a call from the wireless telephone set to the dormant state, the receiver and the transmitter of the wireless telephone are turned on, and the calling signal is transmitted from the wireless telephone to the parent device. Establish a radio channel between the apparatus shifts to a call state of the wire line through said parent device,
When receiving an incoming call from the wired line, the parent device transmits an incoming call signal to the wireless telephone set to the standby state and turns on the transmitter of the wireless telephone set to the standby state. By doing so, a wireless line is established with the parent device, and a transition is made to a call state between the wireless telephone set in the standby state and the wired line via the parent device.

[Embodiment of the Invention] FIG. 1 is a block diagram showing an embodiment of a wireless telephone device according to the present invention. The radiotelephone device of this embodiment comprises one parent device 4 and two radiotelephones 5, 5 '. In this embodiment, two wireless telephones are used to facilitate the following description, but the same configuration can be applied to the case of three or more wireless telephones. The parent device 4 is connected via a terminal 3 to a wire telephone line (not shown). The signal from the wired telephone line input from terminal 3 is the line relay contact 2
3, added to the transmitter 16 via the hybrid circuit 22,
The output of the transmitter 16 is output to the antenna 12 via the antenna duplexer 13.
Sent from. Further, the signal received from the antenna 12 is added to the receiver 14 via the antenna duplexer 13, and the receiver 14
Is output to the wired telephone line via the hybrid circuit 22, the line relay contact 23, and the terminal 3. Synthesizer
21 determines the radio frequencies of the transmitter 16 and the receiver 14, and the control unit 15 controls the transmitter 16, the receiver 14 and the synthesizer 21. Read-only memory (RO
M) 18,18 'stores identification information used for connection control with the wireless telephones 5,5' described later, and is used by the control unit 15.

The wireless telephones 5 and 5'are connected to the parent device 4 through a non-turning line, and read-only memory (ROM) 17,1 respectively.
It has the same structure except that the stored information of 7'is different. That is, the portion 6 surrounded by a broken line in FIG. 1 has the same configuration, and in the following description of the wireless telephone 5 ', the reference numeral used for the wireless telephone 5 is added with a dash for convenience. The signal transmitted from the parent device 4 is the antenna 11
And is input to the receiver 19 via the antenna duplexer 10, and the output of the receiver is applied to the handset 29 and sounded. The signal input from the microphone 30 is sent to the parent device 4 via the transmitter 8, the antenna duplexer 10 and the antenna 11. The synthesizer 20 has a receiver 19 and a transmitter 8.
For determining the radio frequency of the
19, controls the transmitter 8 and the synthesizer 20. A speaker 31 connected to the synthesizer 20 is a speaker for producing a ringing tone, and the hook switch 7 is used for making a call or responding to a ringing tone produced by the speaker 31.

The information stored in the read-only memories 17 and 17 'responds to the information stored in the read-only memories 18 and 18' of the parent device 4.

Now, in this embodiment, one control channel (C-CH)
And a multi-channel access method using a plurality of, for example, 45 speech channels (S-CH) is adopted. That is, one control channel is shared by a plurality of devices to set a speech channel. Further, in this embodiment, when the two wireless telephones 5 and 5'are both unused, only one preset wireless telephone 5'is in the standby state, and this wireless telephone 5'has a predetermined cycle. Although the intermittent reception operation is performed by operating the receiver 19 ′, the other radio telephone 5 is in a dormant state in which the receiver 19 is inactive.

The operation of this embodiment will be described below with reference to the flow charts shown in FIGS.

FIG. 2 shows an operation flow when a call is made from the wireless telephone 5. When the hook switch 7 of the wireless telephone 5 is set to the off-hook state (step 201), this state change is detected by the control unit 9, and the control unit 9 transmits the transmitter 19
Is turned on (reception state) and the transmitter 8 is turned on (transmission state) (step 202), and then a calling signal is sent to the parent device 4 via the antenna duplexer 10 and the antenna 11 (step 203). . From this wireless telephone 5 to the parent device 4
The call signal is sent to the control channel (C-CH). The control unit 9 turns off the transmitter 8 (non-transmission state) when the transmission of the calling signal is completed (step
204).

The parent device 4 receives the calling signal from the wireless telephone 5 through the antenna 1
2. The signal is received by the receiver 14 via the antenna duplexer 13 (step 205), and the demodulated output is added to the controller 15. This causes the controller 15 to turn on the transmitter 16 (step 20
6) A call signal is sent to the wireless telephone 5 '(step 207). The calling signal is sent from the parent device 4 to the wireless telephone 5'using the control channel (C-CH). However, in order to selectively send the calling signal to the wireless telephone 5 '. This calling signal includes the identification information stored in the read-only memory 18 '. That is, when the radio telephone 5'receives this calling signal, the identification information included in the calling signal is collated with the information stored in the read-only memory 17, and if they match, the information is accepted. In addition, in the flow shown below,
The number "2" shown after the signal is a read-only memory
18 'indicates that the signal contains the identification information, and the numeral "1" indicates that the signal contains the identification information stored in the read-only memory 18. The identification information stored in the read-only memories 18, 18 'and 17, 17' is the same as the identification code common to the wireless telephones 5, 5 '.
5'includes individual identification codes individually assigned. Here, the common identification code is used to identify another wireless telephone device.

The wireless telephone 5'has the calling signal 2 transmitted from the parent device 4.
To the receiver 1 via the antenna 11 'and the antenna duplexer 10'.
It is received at 9 '(step 208). The demodulated output of the receiver 19 'is applied to the control unit 9', which causes the control unit 9'to turn on the transmitter 8 '(step 209), and the call response signal 2
Is sent to the parent device 4 (step 210). Here, the call response signal 2 includes the storage identification information of the read-only memory 17 'as described above. The control unit 9'of the wireless telephone 5'turns off the transmitter 8'when the transmission of the call response signal 2 is completed (step 211).

After transmitting the calling signal 2 (step 207), the parent device 4 determines in step 212 whether or not a predetermined time has elapsed. If it is determined that the predetermined time has not elapsed, that is, it has not timed out, the process proceeds to step 213, and it is determined whether the receiver 14 has received the call response signal 2 from the wireless telephone 5 '. It If it is determined in step 213 that the call response signal 2 has not been received yet, the process returns to step 212. If it is determined in step 212 that the time-out has occurred and if it is determined in step 213 that the call response signal 2 has been received, the process proceeds to step 214. That is, when a certain time has passed after the calling signal 2 was sent from the parent device 4 or when the calling response signal 2 was received from the wireless telephone 5 ', the routine proceeds to step 214.

In step 214, the channel designation signal 1 for designating a predetermined communication channel using the control channel is sent to the wireless telephone 5. It is determined in step 215 whether or not the wireless telephone 5 has received the channel designation signal 1.
When it is determined that the channel designation signal 1 is received, the control unit 9
Controls the synthesizer 20 to switch the radio frequencies of the transmitter 8 and the receiver 19 to those corresponding to a predetermined speech channel (S-CH ₁ ) (step 216). Then, the timer is operated (step 217), and when a predetermined time elapses, the transmitter 8
Is turned on (step 218).

The parent device 4 transmits the channel designation signal 1 (step 21
Following step 4), in step 219 the channel designation signal 2 is sent to the radio telephone 5'using the control channel. Here, the channel designation signal 2 designates the same communication channel as the channel designation signal 1. When the parent device 4 finishes sending the channel designation signal, it turns off the transmitter 16 (step 220) and controls the synthesizer 21 to switch the transmission / reception radio frequency to that corresponding to the communication channel (S-CH ₁ ) (step 220). 221) and then turn on transmitter 16 (step 222). As a result, a call using the call channel (S-CH ₁ ) becomes possible between the parent device 4 and the wireless telephone 5.

Whether or not the channel designating signal 2 transmitted from the parent device 4 has been received is determined by the wireless telephone 5'in step 22.
Made in 3. When it is determined in step 223 that the channel designation signal 2 is received, the process proceeds to step 224, the transmission / reception frequency is switched to that corresponding to the communication channel (S-CH ₁ ), and the standby state of step 225 is entered. 'Transmitter 8' of the radio telephone 5 in the waiting state is allowed only received from the parent device 4 using a wireless telephone 5 'is traffic channel (S-CH ₁₎ because it is off.

The wireless telephone 5 turns on the transmitter 8 (step 21
8) After turning on the audio frequency circuits of the transmitter 8 and the receiver 19 (step 226), the parent device 4 turns on the transmitter 16 (step 222) and then turns on the line relay (step 227) and its contact 23 Turn on. As a result, the wireless telephone 5 can make a call via the wired telephone line connected to the terminal 3 of the parent device 4 by using the handset 29 and the microphone 30. In this state, the wireless telephone 5'in the standby state can only receive the voice but cannot transmit it if the hook switch 7'is turned off.

FIG. 3 shows an operation flow when a call is made from the wireless telephone 5 '. When the hook switch 7 of the wireless telephone 5'is turned off-hook (step 30)
1) This state change is detected by the control unit 9 ', and the control unit 9'turns on the transmitter 8' (transmission state) (step 30
2) After that, the calling signal is sent to the antenna duplexer 10 ', antenna 1
It is sent to the parent device 4 via 1 '(step 303). The transmission of the calling signal from the radio telephone 5'to the parent device 4 is performed using the control channel (C-CH). The control unit 9'turns off the transmitter 8 '(non-transmission state) when the transmission of the calling signal is completed (step 304).

The parent device 4 uses the calling signal from the wireless telephone 5'as an antenna.
12, the signal is received by the receiver 14 via the antenna duplexer 13 (step 305), and the demodulated output is added to the controller 15. This causes the controller 15 to turn on the transmitter 16 (step 30
6) The channel designation signal 2 for designating a predetermined communication channel is sent to the wireless telephone 5'using the control channel (step 319). When the parent device 4 finishes transmitting the channel designation signal, it turns off the transmitter 16 (step 32).
0), the synthesizer 21 is controlled to switch the transmission / reception radio frequency to _one corresponding to the communication channel (S-CH ₁ ) (step 321), and then the transmitter 16 is turned on (step 322).

In step 315, it is determined whether or not the radio telephone 5'receives the channel designation signal 2, and when it is determined that the channel designation signal 2 is received, the control unit 9'controls the synthesizer 20 'and the transmitter 8'. 'and receiver 19' switches the radio frequency to that corresponding to a predetermined speech channel (S-CH ₁₎ (step 316). Then, the timer is operated (step 317), the transmitter 8 is turned on after a lapse of a predetermined time (step 318), and then the audio frequency circuits of the transmitter 8'and the receiver 19 'are turned on (step 326).

In this way, when a call is made from the wireless telephone 5 ', the calling signal is not transmitted from the parent device 5 to the wireless telephone 5, and the receiving operation using the wireless telephone 5 cannot be performed.

Next, the operation when the parent device 4 receives an incoming call from the wired telephone line will be described.

FIG. 4 is an operation flow when the parent device 4 receives an incoming call from the wired telephone line. The detection of such an incoming call is performed by the control unit 15 determining whether or not there is an incoming call based on a detection output signal of a detection circuit connected to a wire telephone line (not shown). When an incoming call is made to the parent device 4, that is, a call is made from the wired telephone line (step 401), the parent device 4 turns on the transmitter 16 (step 402) and includes a channel designation signal for designating a predetermined communication channel. Incoming call signal 2
Is transmitted (step 403). In this case, since only the wireless telephone 5'is in the standby state, the parent device 4 waits for the return of the incoming call response signal 2 from the wireless telephone 5 '.

When the wireless telephone 5'receives the incoming call signal 2 from the parent device 4 (step 404), it turns on the transmitter 8 '(step 405) and sends the incoming call response signal 2 to the parent device 4 (step 406). .

The parent device 4 monitors this incoming call response signal 2 and proceeds to step 40.
When it is determined that the incoming call response signal 2 is received in step 8, the process proceeds to step 409, the transmitter 16 is turned off, the wireless channel is switched to the communication channel (S-CH ₂ ) in step 410, and then the transmitter is processed in step 411. Turn on 16.

When the radio telephone 5'ends sending the incoming call response signal 2 (step 406), it turns off the transmitter 8 '(step 4).
12) Then, the wireless channel is switched to the communication channel (S-CH ₂ ) (step 413), and then the transmitter 8 is turned on again (step 414). This enables the call channel (S-CH ₂ )
A call line is established between the parent device 4 and the wireless telephone 5'using.

Parent device 4 on the transmitter 16 subsequently ringing signal (step 411) and sends by using the speech channel (S-CH ₂₎ (step 415). When the wireless telephone 5'receives this bell ringing signal (step 419), the speaker 31 '
Sends a ringing tone from (step 420), when the hook switch 7 'response the off-hook state to the ringing tone (step 418), an off-hook signal using the speech channel (S-CH ₂₎ in the parent device 4 (Step 421) and then turn on the audio frequency circuit (step 42)
2).

When the parent device 4 receives the off-hook signal from the wireless telephone 5 '(step 416), it turns on the line relay 23 (step 417). This allows the wireless telephone 5'to communicate with the wired telephone line via the parent device 4.

FIG. 5 shows another operation flow when an incoming call is received from the wired telephone line. The operation flow shown in FIG. 5 is a flow after both the parent device 4 and the wireless telephone 5'are guided to the same call channel as in the flow shown in FIG. 4, for example. The parent device 4 determines whether there is an incoming call from the wired telephone line, that is, whether there is a call signal (step 501). If it determines that there is a call signal, it sends a bell drive signal (step 502) and determines that there is no call signal. Send bell non-ringing signal (step 50)
3). Reception of the bell ringing signal or the bell non-ringing signal is judged in step 504 of the wireless telephone 5 ', for example, and if the received signal is the bell ringing signal (step 505), a ringing tone is transmitted (step 506). When the hook switch 7'is turned off in response to the ringing tone (step 50
7) The transmitter 8'9 is turned on (step 508), and an off-hook signal is transmitted (step 509). This off-hook signal is received by the parent device 4 (step 510), which causes the parent device 4 to activate the line relay 23. Turn on (step 51)
1). After transmitting the off-hook signal (step 509), the wireless telephone 5 turns on the audio frequency circuit (step 512) and enters the call state (step 513).

If it is determined in step 505 that the bell non-ringing signal is received, that is, if it is determined that the bell ringing signal is not received, and if it is determined that step 507 is on-hook, that is, it is determined that it is not off-hook yet. If so, the process returns to step 504. Also, step 5
When it is determined in 10 that the off-hook signal has not been received yet, the process returns to step 501. If it is determined in step 504 that no signal is received, step 514
And shift to the standby state.

In the above-described embodiment, only the wireless telephone 5'is set in the standby state, and the wireless telephone 5 is always in the idle state, and the wireless telephone 5 is configured as a terminal for exclusive use of calling. However, three or more wireless telephones are provided. In that case, at least one wireless telephone may be configured to be in a standby state. In addition, a wireless telephone set to be in a sleep state may be designated by providing a switch for each wireless telephone, or may be fixedly designated at the manufacturing stage.

In addition, the parent device controls to detect a drop in the power supply voltage of the wireless telephone that is in the standby state and then shift the wireless telephone in the idle state to the standby state and the wireless telephone in the standby state to the idle state. You may do it.

Further, the parent device is configured by providing a plurality of wireless units, and only the wireless telephone corresponding to each preset wireless unit is set to the standby state to perform the intermittent reception, and the other wireless telephones are set to the idle state. It may be configured as well. In this case, the intermittent reception timing may be different for each telephone set.

[Effects of the Invention] As described above, according to the present invention, it is possible to control the connection of a plurality of wireless telephones with one parent device and to reduce the power consumed by the plurality of wireless telephones. In addition, it is possible to eliminate the operational inconvenience that all wireless telephones are disabled at the same time.

[Brief description of drawings]

FIG. 1 is a detailed block diagram showing an embodiment of the present invention, and FIGS. 2 to 5 are flow charts showing the operation of the embodiment of the present invention. 4 …… Parent device, 5,5 ′ …… Wireless telephone, 7 …… Hook switch, 8,16 …… Transmitter, 9,15 …… Control unit, 10,13 ……
Antenna duplexer, 11,12 ... Antenna, 14,19 ... Receiver, 17,17 ', 18,18' ... Read-only memory, 20,21 ...
… Synthesizer.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kari Murata 1-2356 Take, Yokosuka City, Kanagawa Prefecture Yokosuka Electric Communication Laboratory, Nippon Telegraph and Telephone Corporation (72) Inventor Kazuhiro Yoshizawa 1-1-1, Uchisaiwaicho, Chiyoda-ku, Tokyo No. 6 Nippon Telegraph and Telephone Corporation (72) Inventor Akio Yotsuya 5-33-1 Shiba, Minato-ku, Tokyo Inside NEC Corporation (72) Inventor Koichi Ito 3-1, Asahigaoka, Hino-shi, Tokyo No. 1 share company in Toshiba Hino factory (56) References JP 59-37743 (JP, A)

Claims (3)

[Claims] 1. A method of controlling a wireless telephone device, comprising: a parent device connected to a wired line; and a plurality of wireless telephones connected to the parent device via a wireless line. Is set to a standby state in which at least one receiver is turned on, and another wireless telephone is set in a dormant state in which both a receiver and a transmitter are turned off, and is set to the standby state. When making a call from the wireless telephone, the transmitter of the wireless telephone is turned on, and a call signal is transmitted from the transmitter to the parent device to establish a wireless line with the parent device. When a call is made from the wireless telephone set to the dormant state by transitioning to the call state with the wired line through the parent device, the receiver and transmitter of the wireless telephone are turned on and the When a call signal is transmitted from the telephone set to the parent device to establish a wireless line with the parent device, the state is changed to a call state with the wired line via the parent device, and an incoming call from the wired line is made. Is connected to the parent device by transmitting an incoming call signal from the parent device to the wireless telephone set to the standby state and turning on the transmitter of the wireless telephone set to the standby state. A method of controlling a wireless telephone device, comprising establishing a wireless line between the wireless telephone set to the standby state and a call state between the wireless telephone set through the parent device and the wired line. 2. The receiver of the wireless telephone set to the standby state is set to the intermittent reception state in which the reception state and the non-reception state are repeated at a constant cycle. ) A method of controlling a wireless telephone device according to the above item. 3. When making a call from the wireless telephone set to the dormant state, the master device responds to the reception of the calling signal to the receiver of the wireless telephone set to the standby state. A call signal is transmitted to guide the receiver of the wireless telephone set in the standby state to the same channel as the receiving channel of the receiver of the wireless telephone set in the idle state for calling. A method for controlling a wireless telephone device according to claim (1).