JP2609177B2 - Cordless button telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Generally, in this kind of cordless button telephone device, when a dial operation is performed after an off-hook operation in any of the slave units, the dial operation is received by a master unit and the master unit closes a telephone line loop. At the same time, a dial signal is transmitted according to the dial operation to call the other party, and a call is started between the other party and the child device in response to the other party's response. Further, when an incoming call from the telephone line arrives, the incoming call is detected by the master unit and transmitted to the slave unit, and the slave unit sounds a ringtone. Then, if an off-hook operation is performed in the slave unit at this time, the off-hook operation is transmitted to the master unit and the loop of the telephone line is closed, and as a result, an incoming call is performed. And, 1
When only one wireless unit is provided, when one handset is in a call, the other handset cannot make a call, and when two wireless units are provided in the base unit, two handsets cannot be used. If the wireless unit is occupied by the slave unit performing, for example, an inter-extension call, the call of the other slave unit is disabled.

[0003]

As described above, in a conventional cordless button telephone device in which a plurality of slave units are accommodated in one master unit, only the number of wireless units provided in the master unit is required. Since only the handset can talk at the same time, there is a visitor while the wireless unit is occupied by a call of a certain handset, and even if the customer tries to make a door phone call using the door phone handset contained in this device, There is a drawback that the access is not possible and the call cannot be made. As a result, the customer must wait until the end of the telephone call of the child device.

[0004]

Means for Solving the Problems The present onset bright in order to solve such a problem, the master unit, a receiving circuit for receiving a control signal coming from the radio network on a dedicated response to said control signal
An audio transmission circuit for generating and outputting the audio signal
When a control signal is received by the receiving circuit when all the wireless transmitting and receiving units are connected by a wireless line , the sound transmitting circuit
And outputs the audio signal output from the audio
Mix the call voice via the wireless line of the transmitting and receiving
And a control unit for sending the data to the machine . Also, with the display in the handset, it is received by the control unit receiving circuit of the main unit
Control signals in the wireless channel of each wireless transceiver
And sends the control signal from the master unit to the slave unit.
Receive and display according to the received control signal
This is to be performed on a display .

[0005]

When the control signal is received, the sound transmission circuit is activated.
Drives according to the control signal output from the audio transmission circuit
The audio signal is mixed with the call audio via the wireless line of the wireless transceiver.
And send it to the slave . Also, the receiving circuit
The received control signal is transmitted to the control
Transmit to the slave via the channel, the slave is a control signal from the master
Is received, a display corresponding to the received control signal is performed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are block diagrams showing one embodiment of the present invention. FIG. 1 is a block diagram of a master unit, and FIG. 2 is a block diagram of a slave unit. In Figure 1, 1 ₁ and 1 ₂ are photocoupler consisting of a light emitting diode and a light receiving diode for loop detection, 2 ₁ and 2 ₂ are a light emitting diode and a light receiving diode for incoming detection photocoupler,
3 ₁ and 3 ₂ are relays for closing the loop, 4 is a diode bridge, 5 ₁ and 5 ₂ are transistors, 7 ₁ and 7 ₂ are photocouplers for a DP dial composed of a light emitting diode and a light receiving diode, 8 is a communication IC, 9 ₁ and 9 ₂ are transformers, 10 is a cross point IC, 11
Is a handset, 12 is a dial IC, 13 is a hook switch, 14 is a display, 15 is various keys, 16 is IDRO
M and 17 are control circuits, 18 ₁ and 18 ₂ are modems, 1
9 amplifier, 20 a speaker, 21 ₁ and 21 ₂ are radio unit, 23 is the mixing, 24 antenna, 25
Is an LED unit, 26 is a hold circuit, 27 is a voice transmission circuit, 2
Reference numeral 8 denotes a demodulator, and 29 denotes a wireless receiving unit which always has a predetermined control channel set and receives a control signal from a slave unit.

FIG. 2 shows slave units 40 ₁ , 40 ₂ , 40 _n.
Of a block diagram, showing the configuration in the slave unit 40 ₁ as a representative. That is, 50 is an antenna, 51 is a wireless unit, 52 is a modem, 53 is a control circuit, 54 is a display, 55 is various keys, 56 is a buzzer, 57 is an indicator light,
58 is an IDROM, 59 is a voltage detection circuit, 60 is a power supply charging circuit, 61 is an amplifier, 62 is a changeover switch, 63 is a speaker, 64 is a receiver, 65 is a transmitter, and 66 is an LED.
The unit 70 is a battery.

[0008] When the Aiteko machine number is dialed by pressing the key 55 after off-hook operation example in handset 40 _1, these operations are detected by the control circuit 53, the modem 52 as an operation signal, the wireless unit 51
And transmitted to the parent device via the antenna 50. on the other hand,
In the control circuit 17 in the master unit, when these operation signals are received via the antenna 24, the mixing unit 23, the wireless unit 21 ₂ and the modem 18 ₂ , the modem 18 ₁ ,
Radio unit 21 ₁ , mixing 23 and antenna 2
4 through Aiteko machine, transmits the call signal, for example to the child device 40 _2. The control circuit 53 includes an antenna 50 of the handset 40 _2,
When the call signal is received via the wireless unit 51 and the modem 52, the buzzer 56 is sounded. Then, when an off-hook operation is performed to answer this call, this operation signal is detected and transmitted to the base unit, and as a result,
Child device 40 via wireless units 21 ₁ and 21 ₂ in the parent device
Internal call is performed in between ₁ and the slave device 40 _2. When such internal call status, e.g., if the call from the handset 40 _n used as intercom slave is performed, because it already two radio units 21 _1, 21 ₂ is occupied by extension call, conventional Although had become call not, the present invention, since the wireless receiving unit 29 having only the control channel to the base unit is provided, associated to the calling handset 40 _n via the unit 29 and the demodulator 28 receiving a control signal, it is obtained so as to notify the slave unit 40 _1, 40 ₂ in the internal call.

Next, FIG. 3 is a flowchart for explaining the operation of the cordless button telephone apparatus of the present invention. In addition,
This flowchart explains the operation of the control circuit 17 in the master unit. As described above, for example, the slave 40 ₁
Performs extension call to the slave unit 40 _2, if the response to this handset 40 ₂ to off-hook operation, the slave unit 40 ₁ and the slave device 4
Internal call is made between the 0 ₂ (step 100).
And this time, for example, to determine the incoming by the call operation of such cordless speakerphone 40 _n of the intercom slave (step 101). That is, at this time, for example, when a customer performs a call operation using the cordless speakerphone 40 _n , this is detected by the control circuit 53 and the modem 5
2, transmitted to the parent device via the wireless unit 51 and the antenna 50. Then, the control circuit 17 in the master unit controls the cordless speakerphone 40 via the antenna 24, the mixing 23, the wireless reception unit 29 and the demodulator 28.
_The control signal and the ID code associated with the calling operation of _n are received to determine the coincidence of the ID codes, and also to determine the incoming call from the cordless speakerphone 40 _n . If it is determined that an incoming call has not arrived, the process returns to step 100, but if there is an incoming call from the cordless speakerphone 40 _n and “Y” is determined in step 101, step 102 is performed.
Drives the voice transmission circuit 29 to generate a sound of "ping-pong", and outputs this sound via the crosspoint IC 10 and the wireless units 21 ₁ and 21 ₂ to the slave units 40 ₁ ,
It sends mixed into 40 _second call voice. As a result, the caller who is making an extension call using the slave units 40 ₁ and 40 ₂ can recognize the arrival of the incoming call from the cordless speakerphone 40 _n, and as a result, immediately stops the extension call and responds to the customer. Becomes possible. Then, the process proceeds to step 103 to determine the end of the extension call. If any of the slave units 40 ₁ and 40 ₂ performs the on-hook operation, it is determined that the extension call is to be terminated, and the process is terminated, but the extension call is continued. In this case, the process returns to step 100.

The present invention can be applied to the following cases. That is, when a certain handset puts on hold during an outside line call via the wireless unit, the battery 70 is consumed to transmit a hold sound to the outside line. For this reason, this suspended slave unit is disconnected from the wireless unit. During such external pending, the internal call is initiated by another handset between, since the wireless unit 21 _1, 21 ₂ is occupied, conventionally, handset in external pending return to external calls become unable. According to the present invention, the control circuit 17 in the master unit performs a re-response operation of the outside line holding slave unit to the outside line by the radio receiving unit 29.
, The voice transmission circuit 29 is driven to transmit a “disconnection request signal (beep-beep)” during the voice call of the slave unit during the extension call, thereby stopping the extension call.
In this case, the slave unit holding the outside line is re-answered to return to the outside line call.

Further, the present invention can be applied to the following cases. That is, the two slave units are wireless units 21 ₁ ,
21 during ₂ occupies extension call, the emergency pendant housed is the operation (old man pendant for notifying emergency elderly have decreased from the neck) as a slave unit, the control circuit 17, a radio receiver This emergency signal is received via the unit 29, and the voice transmission circuit 29 is driven to transmit an "alarm sound (p, p, p)" into the call voice of the slave unit during the extension call, whereby the elderly person can receive the alarm signal. Can report an emergency.

In this embodiment, when the radio receiving unit 29 receives a control signal, it drives the voice transmitting circuit 27 to generate a corresponding voice signal, mixes it with the voice signal during the call, and mixes it with the voice signal during the call. The slave unit is informed of this fact, but the control signal is transmitted as it is to the wireless units 21 ₁ and 2 ₁ .
1 through ₂ control channel transmitted to the slave unit during a call may be displayed onto the display unit 54 or the LED unit 66 of the slave unit. Further, in the present embodiment, an example has been described in which the master unit is provided with _two wireless units 21 ₁ and 212, but the present invention can be similarly applied to a case in which one base unit is provided.

[0013]

As described above , according to the present invention , when a control signal is received, a sound transmission circuit is driven to generate a sound.
A voice signal corresponding to the control signal output from the voice transmission circuit
Mixing with the call voice via the wireless line of the wireless transceiver
Since the call is sent to the child device , for example, if the wireless transmission / reception unit is occupied and there is a call from a child device such as a door phone operated by the visitor, the wireless transmission / reception unit is occupied and the child device during the call is used. A notification is sent to the user, and as a result, there is an effect that the telephone call of the child device is stopped and prompt response to the visitor is possible. Also, the control signal received by the receiving circuit is
Signal via the control channel in the wireless line of the wireless transceiver.
Since the information is transmitted to the slave and the slave is displayed according to the control signal , the notified information can be more clearly identified.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing an embodiment of a cordless button telephone apparatus according to the present invention.

FIG. 3 is a flowchart illustrating the operation of the embodiment of the present invention.

[Description of Signs] 8 Call IC 10 Crosspoint IC 11 Handset 12 Dial IC 13 Hook switch 14 Display 15 Key 17 Control circuit 21 ₁ Wireless unit 21 ₂ Wireless unit 23 Mixing 24 Antenna 25 LED section 27 Voice transmission circuit 28 De Modulator 29 Wireless receiver 40 ₁ Slave unit 40 ₂ Slave unit 40 _n Slave unit 50 Antenna 51 Wireless unit 53 Control circuit 54 Indicator 55 Key 56 Buzzer 64 Receiver 65 Transmitter 66 LED unit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location H04Q 3/58 107 H04Q 3/58 107 7/38 H04B 7/26 109D

Claims (2)

(57) [Claims] A parent device 1. A comprising a plurality of radio transceiver, in cordless key telephone system comprising a respective the radio transceiver and linked by wireless least two or more handsets, the base unit, the A receiving circuit for exclusively receiving a control signal coming from a wireless line, and an audio signal corresponding to the control signal
When a control signal is received by the receiving circuit when the slave unit and all of the wireless transmission / reception units are connected by a wireless line, a sound transmission circuit that generates and outputs Times
The audio signal output from the audio transmission circuit
Applicable by mixing with call voice via wireless line of line transceiver
A cordless button telephone device, comprising: a control unit for sending to a slave unit. 2. The cordless button telephone device according to claim 1, wherein the slave unit has a display, and a control unit of the master unit is controlled by the receiving circuit.
Control signals received by the
A cordless button telephone, wherein the cordless button telephone transmits to the slave via a control channel, the slave receives a control signal from the master, and performs a display on the display in accordance with the received control signal. apparatus.