JP2571297B2 - Wireless telephone equipment - Google Patents

Description

The present invention relates to a wireless telephone device (cordless telephone),
In particular, the present invention relates to an incoming call system of a cordless telephone used for a key telephone device.

(Prior Art) First, a key telephone device (key telephone system) using a cordless telephone will be described with reference to FIG.

In FIG. 2, reference numeral 1 denotes a main unit (ME) for controlling the entire system, and reference numerals 21 to 24 denote connection units (CE) which are connected to the ME 1 and wirelessly connected to cordless telephones (RTEL) 31 to 34. Here, CEs 21 and 22 cover radio zone Z1,
23 and 24 cover wireless zone Z2. The RTELs 31 to 34 can move within the wireless zone and between wireless zones. Note that L
Reference numeral 1 denotes a wired telephone line connected to ME1, and L2 denotes a connection line connecting ME1 and CEs 21 to 24.

First, ME1 sets CE21 of wireless zone Z1 and CE23 of wireless zone Z2 as an initial operation as a standby state in which calls can be made and received, and
Specify E22 and 24 to be in the standby state.

Next, an example of a conventional incoming call connection system of a wireless telephone device will be described.

Now, as shown in Fig. 2, RTELs 31 and 32 are wireless zones.
It is assumed that R1 has a wireless zone Z2 with RTELs 33 and 34.

Here, referring to FIG. 3 and FIG.
And external line interfaces 101, 102, and 103 connected to a wired circuit line L1 (external lines 171, 172, and 173) and a connection line L2 (C
CE interfaces 161, 162, 163, and 164 connected to E lines 161, 162, 163, and 164). Here, outside line 1
When the ME 1 receives an incoming call signal via 71, the incoming call signal is detected by the external line interface 101 and input to the control unit 131. In this case, since the CEs 21 and 23 are in the standby state, the control unit 131 transmits the C command via the CE interfaces 121 and 123.
An incoming signal R1 including incoming information indicating that the incoming call is from the outside line 171 is transmitted to E21 and CE23.

Further, with reference to FIG.
And a power supply 204, a control unit 203, a transceiver 202, and a reception level determiner 207.
Is connected.

The incoming call signal R1 sent from the ME1 is input to the control unit 203 via the hybrid 201 in the CEs 21 and 33, where it is analyzed. The control unit 203 performs a
Sends an RTEL incoming signal to the RTEL via the antenna 205. The RTEL incoming signal includes an identification number unique to the system and an extension number unique to RTEL.

Incidentally, since each of the CEs 21 and 23 does not know which RTEL is in the radio zone covered by the CEs, the CEs 21 and 23 respond to the incoming signal from the ME 1 as shown in FIG. Send S2, S3, and S4 sequentially. Here, the incoming signals S1, S2, S3, and S4 are RTEL31, 32, 3 respectively.
Corresponds to 3, and 34.

Referring also to FIG. 6, each RTEL has an antenna 30 as shown.
The antenna 307 is connected to the transceiver 301. The transceiver 301 is provided with a microphone 303 and a speaker 304. Further, a reception level determiner 309 is connected to the transceiver 301. Transceiver 301
A control unit 302 is connected to the reception level determination unit 309. The control unit 302 includes a keyboard 306, a display unit 306, and a buzzer 3.
There are ten. Note that each RTEL operates intermittently at predetermined intervals to save the battery 308.

The above-mentioned incoming call signal is received by the transceiver 301 via the antenna 307 of each RTEL, input to the control unit 302, and analyzed there.

The control unit 302 checks the system-specific identification number included in the incoming call signal and the RTEL-specific extension number, and when they match with its own extension number, the control unit 302 controls the transceiver 301 to transmit the message from the antenna 307 to the CE 21 or 23. F System unique identification number and RTEL
Sends an incoming call response signal containing a unique extension number. Here, the call response signals transmitted by the RTELs 31 to 34 are called call response signals T1 to T4, respectively. These call response signals are received by the transceiver 202 via the antenna 205 of the CE 21 or CE 23, input to the control unit 203, and analyzed. Then, the control unit 203 checks the system-specific identification number included in the incoming call response signal, and if they match, temporarily stores the extension number unique to each RTEL.
When receiving the incoming response signals from all the RTELs, the CEs 21 and 23 stop transmitting the incoming signals.

However, in the above example, RTELs 31 and 32 are in wireless zone Z.
1, RTELs 33 and 34 are moving in wireless zone Z2, so C
At E21, only incoming call response signals from RTELs 31 and 32 and at CE23 are received. Therefore, CE21 and CE23
Sends an incoming call signal even after all of the RTELs 1 to 4 have transmitted an incoming call response signal. That is, the CEs 21 and 23 transmit the incoming call signal for a predetermined time.

After a lapse of a predetermined time, the CEs 21 and 23 transmit a CH designation signal to the RTEL. The RTEL that responded first to this CH designation signal
(In this case, RTEL31 and 33) Insert the extension number.
That is, CE21 sends out the CH designating signal u1, and CE23 sends out the CH designating signal u3. When the RTELs 31 and 33 receive the CH specifying signals u1 and u3, respectively, they switch the channel to the channel (CH) specified by the CH specifying signals u1 and u3. In addition, the RTEL that matches the extension number of the CH designation signal sends a CH switch completion signal to CH21 or CH23.
Send to Upon receiving the CH switching completion signal, the CE 21 or 23 transmits a bell sounding signal to each RTEL. In other words, CE21 is a bell ringing signal v1 and v2 (corresponding to RTEL31 and 32, respectively)
Are sequentially transmitted, and the CE23 outputs the bell ringing signals v3 and v4 (R
TEL33 and 34).

When the RTEL receives the bell ringing signal, the buzzer 310 sounds the bell and notifies the user of the incoming call. Where the user
When the call button on the keyboard 306 of the RTEL 31 is pressed, the control unit 302 waits until a bell ringing signal with the same extension number is received next, and sends the incoming response signal w1 including the extension number to the CE21.
Send to When receiving the incoming response signal w1, the CE1 transmits an incoming response signal including the extension number to the ME1. When the ME1 receives the incoming response signal, the AF ON signal x1 including the extension number
Is transmitted to the CE 21, and after the transmission is completed, the switch 111 is controlled so as to connect the external interface 101 and the CE interface 121 shown in FIG.

On the other hand, ME1 transmits the disconnection signal and the other CE23. The hold sound source 151 is connected to the switch 111, and the hold sound source 151 is controlled by the control unit 131.

When the CE23 receives the disconnection signal, the CE23 outputs the disconnection signal to the RTEL33 and
After sending to 34, return to standby state.

On the other hand, CE21 which received AF ON signal x1 sends A to RTEL31 and 32.
Transmits the F ON signal x1 and turns on the audio circuit. RTEL31 is A
Since the extension number of the F ON signal x1 matches the own extension number,
Turn on the audio circuit. This allows the RTEL 31 to talk on the outside line 171. Since the extension number of the AF ON signal x1 and the own extension number do not match, the RTEL 32 stops ringing the bell and returns to the standby state.

[Problems to be Solved by the Invention] In the above-described conventional wireless telephone device, the number of wireless telephones in the own zone cannot be grasped by the connection device. Even after the signal is transmitted, the incoming call signal is transmitted. Therefore, there is a problem that it takes time to ring the bell and the control channel is wasted.

An object of the present invention is to provide a wireless telephone device that can effectively use a control channel.

(Means for Solving the Problems) In the present invention, a plurality of wireless zones for wireless services are set, and a wireless telephone that moves in the zone, and a wireless telephone that is arranged for each zone and is located in the zone In a wireless telephone device having a connection device for performing wireless connection with a telephone and a main device for controlling connection to a telephone line and controlling the connection device, the connection device includes a first incoming call signal from the main device. A first sending means for sending a second incoming call signal to the wireless telephone for a predetermined time in response to the first call response signal, and a second sending signal to the main device in response to a first incoming call response signal from the wireless telephone. Second sending means for sending an incoming call response signal of the second device, and the second sending means in response to a response completion signal from the main device.
And a third transmitting means for transmitting a channel designation signal to the wireless telephone by stopping transmission of an incoming call signal of the telephone set. Fourth sending means for sending the first incoming call signal, and determining means for receiving, when receiving the second call answering signal, whether or not there has been a response from all of the wireless telephones except during a call. And a fifth transmitting means for transmitting the response completion signal when the determining means determines that there is a response from all of the wireless telephones. .

EXAMPLES Hereinafter, the present invention will be described with reference to examples.

In this embodiment, a key telephone system is configured as shown in FIG. 2, and a main unit (ME) 1, a connection unit (CE) 21
24, and radio telephones (RTEL) 31-34 are similarly configured except for the incoming call connection control operation.

Now, as shown in FIG. 2, RTELs 31 and 32 are in radio zone Z1.
Next, it is assumed that the RTELs 33 and 34 are moving in the wireless zone Z2.

Referring to FIG. 1, FIG. 2, FIG. 3, FIG. 5, and FIG. 6, an incoming signal from outside line 171 is detected by outside line interface 101 of ME 1 and input to control unit 131. CE21 and
Since CE23 is currently in a standby state, the control unit 131
Via interface 121 and CE interface 123
An incoming call signal including incoming information indicating that the incoming call is to the outside line 171 is transmitted to CE21 and CE23.

This incoming signal is input to the control unit 203 via the hybrid 201 of the CEs 21 and 23, and is analyzed there. Then, the control unit 203 transmits an incoming call signal (RTEL incoming signal) including an identification number unique to the system and an extension number unique to the RTEL from the transceiver 202 to the RTELs 31 to 34 via the antenna 205 based on the analysis. That is, CE21 and CE23 are the incoming signals S1, S
2, S3, and S4 are sequentially transmitted.

These incoming signals are transmitted to the RTEL 31-34 antenna 307, transceiver
Via 301, it is input to the control unit 302 and analyzed. The control unit 302 checks the system-specific identification number included in the incoming call signal and the RTEL-specific extension number, and if they match with the own number, the control unit 302 transmits the CE2 signal from the transceiver 301 via the antenna 307.
To 1 or 23, incoming call response signals T1 to T4 including an identification number unique to the system and an extension number unique to RTEL are transmitted.

These incoming response signals T1 to t4 correspond to the antenna 20 of CE 21 or 23.
5 and input to the control unit 203 via the transceiver 202 and analyzed here. The control unit 203 collates the system-specific identification number included in the call-response signal, and if they match, transmits a call-response signal including the RTEL-specific extension number to the ME 1 via the hybrid 201.

Control unit 1 via CE interface 121 or 123 of ME1
Input to 31 for analysis. The control unit 131 temporarily stores the extension number unique to the RTEL included in the incoming call response signal.

ME1 is the last incoming response signal from the RTEL included in the system.When receiving the incoming response signal from both CE21 and CE23, CE1 is transmitted via CE interfaces 121 and 123.
And a response completion signal to CE3. On the other hand, CE21 or CE23
When a call response signal is received from only one of the CEs, a disconnection signal is transmitted to the CE that has not transmitted the call response signal.

This response completion signal or disconnection signal is input to the control unit 203 via the hybrid 201 of the CEs 21 and 23 and is analyzed there. As a result, the control unit 203 stops transmitting the incoming call signal, and CE21 or CE23 controls all the Rs included in the system.
CE21 and 23 also return to the standby mode when receiving a disconnection signal when receiving an incoming response signal from the TEL or transmitting the incoming signal for a predetermined period of time.
Send to RTEL. The extension number of the RTEL responding first is inserted into this CH designation signal.

When each RTEL receives the CH designation signal, it switches to the designated CH. Also, the RTEL that matches the extension number of the CH designation signal
Transmits a CH switching completion signal to the connection device. CH21 or 23CH
When the switch complete signal is received, the bell ringing signal including the extension number is sent to RTELv1 to v4 in order.

When each RTEL receives the bell ringing signal, the buzzer 310 rings the bell and notifies the user of the incoming call. User is RTEL31
When the call button on the keyboard 306 is pressed, the control unit 302
Waits until a bell ringing signal having the same extension number is received, and transmits an incoming response signal w1 including the extension number to CE1. When CE21 receives the incoming response signal w1, the incoming response signal
Send w1 to ME1. When the ME1 receives the incoming response signal w1, the ME1 transmits an AF ON signal x1 including the extension number to the CE21.
The switch 111 is controlled so that 21 is connected. further,
A disconnection signal is transmitted to CE23.

When the CE23 receives the disconnection signal, the CE23 outputs the disconnection signal to the RTEL33 and
Transmit to 34 and return to standby state. On the other hand, AF ON signal x
The CE 21 receiving 1 transmits the AF ON signal x1 to the RTELs 31 and 32, and turns on the audio circuit. The RTEL 21 turns on the audio circuit because the extension number of the AF ON signal x1 matches the own extension number. As a result, the RTEL 21 can talk on the outside line 171. RTEL2
In the case of 2, the extension number of the AF ON signal does not match the own extension number, so that the bell ringing is stopped and the apparatus returns to the standby state.

[Effects of the Invention] As described above, according to the present invention, even if the wireless zone is a plurality of zones, the main device manages the incoming call response signal from the wireless telephone, so that the time until the incoming call rings can be reduced. There is an effect that it can be shortened.

[Brief description of the drawings]

FIG. 1 is a timing chart for explaining an embodiment of an incoming call connection operation by a wireless telephone device according to the present invention, and FIG.
FIG. 3 is a diagram showing a system configuration of a wireless telephone device, FIG. 3 is a diagram showing a configuration of a main unit (ME) shown in FIG. 2, and FIG. 4 is for explaining an incoming call connection operation in a conventional wireless telephone device. Fig. 5 is the connection device (CE) shown in Fig. 2.
FIG. 6 is a diagram showing the configuration of the radio telephone (RT) shown in FIG.
FIG. 3 is a diagram showing a configuration of EL). 1 Main device (ME), 21 to 24 Connection device, 31 to 34 Radio telephone (RTEL), L1 Wired telephone line, L2 Connection line, Z
1, Z2 …… Wireless zone.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shinji Kumagaka 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Hiroyuki Misawa 2-57 Koishikawa, Bunkyo-ku, Tokyo Meisei Electric Co., Ltd. (56) References JP-A-64-19841 (JP, A)

Claims (2)

(57) [Claims] 1. A wireless telephone set in which a plurality of wireless zones for a wireless service are set and moving in the zone, and a connection device arranged for each zone and performing wireless connection with the wireless telephone in the zone And a main unit for controlling connection to a telephone line and controlling the connection device, wherein the connection device includes a first device from the main device.
First sending means for sending a second incoming call signal to the radio telephone for a predetermined time in response to the incoming call signal, and said first transmitting means in response to a first incoming response signal from the radio telephone. Second sending means for sending a second incoming call response signal to the main device; and
Third transmission means for stopping transmission of an incoming call signal and transmitting a channel designation signal to the wireless telephone, wherein the main device detects an incoming call from the telephone line and sends a signal to the connection device. Fourth sending means for sending out the first incoming call signal, and determining means for receiving, when receiving the second call answering signal, whether or not there has been a response from all of the wireless telephones except during a call. And a fifth transmitting means for transmitting the response completion signal when it is determined by the determining means that there is a response from all of the wireless telephones. 2. The wireless telephone device according to claim 1, wherein said connection device stops transmitting said second incoming call signal in response to a disconnection signal from said main device. A return unit for returning to a standby state, wherein the main unit does not transmit the second call response signal when the determination unit determines that all of the wireless telephones have responded; And a sixth transmitting means for transmitting the disconnection signal to the wireless telephone device.