JPS63252090A - Telephone set - Google Patents

Abstract

PURPOSE:To recognize the presence of a visitor or the like even during a busy external line by allowing a control circuit to send an interruption signal to a telephone set while talking with an external line when a call signal comes from a door phone during the talking with external line. CONSTITUTION:When a visitor comes during the talking with an external line and a call signal from a door phone 13 from the visitor or the like is received by a control circuit 16, the control circuit 16 connects an interruption signal oscillator 23 to a telephone set 12 during talking with an external line to send an interruption signal to the telephone set 12. When the telephone set 12 holds the external line, the telephone set 12 talks with the door phone 13 and the external line talking is restarted by releasing the external line holding.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to telephone devices.

[Prior Art] A telephone device such as a home telephone includes a main telephone circuit connected to a central office line, a telephone connected to the main telephone circuit via two communication lines, and two communication lines connected to the main telephone circuit. It is conceivable to use a device that has a door intercom connected via a. According to this telephone device, the telephone can establish an outside call state connected to a central office line, or can establish an intercom call state in response to a ringing signal from the door intercom.

[Problems that IJI is trying to solve] However,
In the above-mentioned telephone device, even if there is a visitor during an outside line call and the visitor presses a push button (calling signal generating unit) on the doorphone, the doorphone's ringing signal is sent to the off-footer telephone during the outside line call. Therefore, the telephone user is not aware of the presence of the visitor and cannot respond appropriately to the visitor.

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to appropriately respond to a doorbell call by a visitor or the like even when an outside line call is in progress.

[Means for Solving the Problems] The present invention provides a main telephone circuit connected to a central office line, a telephone connected to the main telephone circuit via two telephone lines, and a telephone connected to the main telephone circuit via two telephone lines. A telephone device comprising a doorbell connected via a telephone line and a control circuit for driving and controlling a main telephone circuit, the main telephone circuit being equipped with an interrupt signal generator and connecting a single office line and a telephone set. It is equipped with a switching circuit section that can perform switching connections between the telephone set and the doorbell, and between the telephone set and the interrupt signal generator. In the following, when receiving a calling signal from a doorbell, an interrupt signal generator is connected to the above-mentioned telephone which is in use for an outside line call, and an interrupt signal is sent to the telephone.

[Function] According to the present invention, when there is a visitor etc. during an outside line call and the control circuit receives a call signal from the doorbell from the visitor, the control circuit connects the interrupt signal generator to the off-hook telephone set during the outside line call. and sends an interrupt signal to the telephone. This allows the telephone user to recognize the presence of a visitor, etc. even during an outside line call, and to respond appropriately to the doorbell call.

[Embodiment] FIG. 1 is a circuit diagram showing a telephone device according to an embodiment of the present invention, and FIGS. 2 to 6 are flowcharts corresponding to various operating modes of the telephone device.

The telephone device 10 includes a main device 11, a plurality of telephones 12 (in this embodiment, 5 telephones from the 171st telephone to the 5th telephone), and a plurality of telephones 12 (in this embodiment, 3 telephones from the 1st door telephone to the 3rd door telephone). It consists of a doorphone 13 (stands) and a doorbell 13.

The main device 11 has a main telephone circuit 15, a control circuit 16, and a power supply circuit 17.

The main telephone circuit 15 is connected to the office lines 18A and 18B, and each telephone v112 has two communication lines 19A and 18B, respectively.
19B, each door phone 13 and 2
They are connected by wooden communication lines 20A and 20B.

The main telephone circuit 15 includes a ringing signal loop detector 21, a DTM
F oscillator oscillator 2 sending 1 signal generator) 23, hold melody generator (melody I
C) 24, capacitor C1. Resistor R1, relay r11.
r12, a transformer tl, and a capacitor C2.

In addition, the main telephone circuit 15 connects each telephone 12 (112 to 51
2), the calling signal oscillator 26
(126-526), off-footer detector 27 (127
~527), extension loop detector 2B (128~528)
, FB receiver 29, capacitors C13 to C53, CI
4-C54, relay r13-r53, r14-r54,
It is equipped with a battery bll-b51 and transformers t12 to t52.

In addition, the main telephone circuit 15 is connected to each door phone 13 (113 to 3).
13), door phone PB press detector 30 (130-330), relay r01-r
It is equipped with 03.

The main telephone circuit 15 also includes a crosspoint circuit (exchange circuit section) 31 consisting of a crosspoint IC.
The cross point circuit 31 has seven horizontal lines from 0" to "8" and four vertical lines from "A" to "D" arranged orthogonally to each other. The θ" line is a door phone exchange circuit. The c line is connected to the relay r01- of each door phone 13 via the bidirectional amplifier circuit 32.
r03 is connected. Lines "1" to "5" are telephone communication circuits for each telephone, and terminals of transformers t12 to t52 corresponding to each telephone 12 on the opposite side of the telephone are connected to wires "1" to "5". The B'' line is a hold circuit, and the hold melody generator 24 is connected to the '8' line. The "A" line is the station line circuit, and the terminal on the opposite line side of the transformer t1 is connected to the "A" line. The BII line is an extension circuit. ”
The "C" line is the hold circuit.The "D" line is the interrupt circuit.
An interrupt signal oscillator 23 is connected to the "D" line. The cross point circuit 31 turns on/off the contact state of the cross point (indicated by Δ in FIG. 1) between each horizontal line and each vertical line by the control circuit 16, and connects each telephone 12 to an outside line (office line), an internal line, Connect to the doorbell, hold, and interrupt circuits by switching. Note that the cross point (C, 6) indicated by a mark in FIG. 1 is always on.

The control circuit 16 includes a ring signal loop detector 21 of the main telephone circuit 15, an off-footer detector 27 (127-527), an extension loop detector 28 (128-52B), a PB receiver 29, and an intercom PB press detector 30 (130). ~33o)
Receive each transmission signal from. The control circuit 16 controls the cross point circuit 31 based on the reception results of the respective transmission signals.
．． DTMF oscillator 22, relay r01 of each door phone 13
~r03, drives and controls the pending melody generator 24 and the like.

Each telephone 12 has a telephone circuit 34 and a power supply circuit 35. The telephone circuit 34 includes a dial circuit section, a telephone call circuit section, and a ringer circuit section.

Below, various operating modes of the telephone device 10 will be explained.

(Call an outside line...see Figure 2) When attempting to make an outside call using any telephone 12, for example, the fifth telephone 512, when the handset of the fifth telephone 512 is off-hook from the standby state, a call is made to the fifth telephone 512. A corresponding extension loop detector 28 sends this off-hook information to control circuit 16. The control circuit 16 turns on the cross point (A, 5) of the cross point circuit 31, and turns on the relay r.
By moving ll toward transformer kl, an outside line transmission mode is established. When the 571i handset 512 dials the destination number, the 5M! , the extension loop detector 28 (when the dial information is a dial pulse signal) or the PB controller 29 (when the dial information is a button signal) corresponding to the handset 512 sends this dial information to the control circuit 16. The control circuit 16 transmits a dial pulse to 1ta18A and 18B by turning on/off relay r11 if the above dial information is a dial pulse signal, and at this time relay r12 relays to the telephone 12 side to send a dial pulse signal. Prevent pulse noise from being transmitted. @If the above dial information is a button signal, this dial information is transmitted to the DTMF oscillator 22, and a tone is transmitted from the 1 oscillator 22 to the office lines 18A and 18B. When the ring signal loop detector 21 detects a central office line reversal due to the off-hook of the called party's telephone, this detection information is sent to the control circuit 16, and an outside line communication state is established.

(Incoming outside line call...see Figure 3) When a calling signal from the office arrives on the office lines 18A and 18B,
The ring signal loop detector 21 detects the arrival of an outside line, and this detection information is sent to the control circuit 16. The control circuit 16 is
In this embodiment, the relay r corresponding to the first $ telephone 112 and the second telephone 212 set in the priority order of outside line calls 13. r23 is switched to the ringing signal oscillator 26, relays r14 and r24 are switched to the off-hook detector 27, and the first telephone 112 and the second telephone 212 are made to ring. The control circuit 161 is connected to the first telephone 411112 and the second telephone 411112
Each off-hook detector 27 counts the number of rings of the L talk [212] and sends on-hook/off-hook information of those telephones 12 to the control circuit 16. ■1st FW, talker 1
12, or if the second telephone 212 responds within 5 times of ringing a, the control circuit 16 activates the relay r13゜r23,
and restore relays r14 and r24, ■ 1st telephone 1
If the 12 or 2nd telephone 212 does not respond within 5 rings, the control circuit 16 calls the other 31'7 telephone 31.
Relays r33 to r corresponding to the second to fifth TrL handsets 512
53 to the calling signal oscillator 26, relays r34 to r
54 to the off-hook detector 27, and the other telephone 12
When any of the third @ telephone set 312 to fifth telephone fi512 responds (detected by the on-hook/off footer information of the off-hook detector 27), the relays r33 to r5
3, and restore relays r34 to r54. Next, the control circuit 16 switches the relay rll to the transformer tl, for example, if the second telephone 212 is off-hook and in the answering state, the crosspoint of the crosspoint circuit 31 is restored. )(A
, 2) to establish an outside line call state.

(Extension call...see Figure 4) When attempting to make an extension call using any 'Tr1 telephone set 12, for example, the fifth telephone set 512, when the handset of the fifth telephone set 512 is off-hook from the standby state, the fifth telephone set 512
Extension loop detection $28 corresponding to sends this off-hook information to control circuit 16. The control circuit 16 turns on the cross point (A, 5) of the cross point circuit 31 and turns on the relay rll toward the transformer t1, thereby forming an outside line transmission mode.
”When dialing, the extension loop detector 28 corresponding to the fifth telephone 512 detects the dial information control circuit 16.
Send to. After that, if there is no dial information for 3 seconds (preset), the control circuit 16 moves the relay rll toward the capacitor C1 □, turns on/off the cross point (D, 5) of the cross point circuit 31, and turns on/off the cross point (D, 5). 57
1i telephone 512, and turns off the cross point) (A, 5) to form the extension dialing mode.
1 to 5), the extension loop detector 28 corresponding to the fifth telephone 512 sends this dial information to the control circuit 16. The control circuit 16 is connected to the called telephone 12
The on-hook/off-hook information of the callee 12 is obtained by the extension loop detector 28 of the callee. Control circuit 1
6, if the called telephone 12 is in the on-footer state,
Switch the relay r9.3 corresponding to the destination telephone 12 to the ring signal oscillator 26, switch the relay rJ14 to the off footer detector 27, ring the destination telephone 41112, and turn on the cross point (D, 5) of the cross point circuit 31. /Turn off and make the fifth telephone 512 send out a ring tone,
(φIf the destination telephone 12 is in an off-hook state, turn on/off the cross point (D, 5) of the cross point circuit 31 to send a busy tone to the fifth telephone 512,
Telephone 512 dials another called number.

After executing the above step (2), the control circuit 16 obtains the on-hook/off-hook information of the off-footer detector 27, and (2) if the called telephone 12 goes off-hook, the called telephone 12
Relay rM3. For example, the first telephone 1
12 responds, the cross point (D, 5) of the cross point circuit 31 is turned off, and the cross point (D, 5) is turned off.
Turn on B, l) and (B, 5).

After establishing an extension call state, (1) If the called telephone 12 does not go off-hook and does not respond, the fifth telephone 512 can dial another called number to call another telephone.

(Door phone call...see FIG. 5) When attempting to make a door phone call using any door phone 13, for example, the first door phone 13, the door phone FB press detector 30 controls the push button press information of the first door phone 13. The signal is sent to circuit 16. The control circuit 16 includes a relay r corresponding to all telephones 12.
13 to r53 are switched to the ringing signal oscillator 26, and relays r14 to r54 are switched to the off-hook detector 27, and all the telephones 12 are simultaneously called and ringed. Control circuit 16
obtains on-hook/off-footer information from off-hook detectors 27 corresponding to all telephones 12, and monitors whether there is a response within three rings.

(A) If there is a response within 3 rings, the control circuit 16 will send relays r13 to r5 corresponding to all telephones 11!112.
3. and restore relays r14 to r54, relay ro
When the 2'i1 telephone 212 responds by going off-hook, the cross point circuit 3 is turned on.
1 cross point (B, 0).

Turn on (B, 2) and establish a doorphone call state.

(B) If there is no response within the above three rings, the control circuit 16 sends the relays r13 to r53 corresponding to all the telephones 12.
8 and relays r14 to r54 and stop ringing, ■
If any telephone fi 12 responds within a few seconds, a doorbell call state is established in the same manner as in (A) above, and if there is no response from any telephone fi 12 within that few seconds, the system goes into a standby state. .

(Interrupting the doorbell during an outside line call...see Figure 6) When the pushbutton of the first doorphone 13 is pressed during an outside line call on any telephone, for example, the first telephone 112, the first doorphone 13 is activated. The door phone PB press detector 30 sends this detection information to the control circuit 16. The control circuit 16 turns on/off the cross point (D, 1) of the cross point circuit 31 and sends an interrupt signal from the interrupt signal oscillator 23 to the first telephone 112 which is in the middle of one call. Next, the first telephone 1
12 dials "O", the extension loop detector 28 corresponding to the 1st m telephone 112 sends this dial information to the control circuit 16, and the control circuit 16 detects the cross point (A, 6) of the cross point circuit 31. The control circuit 16 calls relays r23 to r53 corresponding to all telephones 1112 by turning on and sending out the hold melody of the hold melody generator 24 to the central office line, and turning off the cross point (A, l) (external line hold). Switch to the signal oscillator 26, switch the relays r24 to r54 to the off-hook detector 27, and perform a general paging. At this time, the control circuit 16 controls the first telephone 11
Regarding 2, the cross point (D, i) of the cross point circuit 31 is turned on/off to give an extension dial tone, and at this time, when the first telephone 112 goes on-hook, an extension loop corresponding to the first telephone 112 is detected. device 28 sends this on-footer information to control circuit 16. The control circuit 16 switches the relay r13 corresponding to the first 1' filler 112 to the calling signal oscillator 26, switches the relay r14 to the off-footer detector 27, and causes the first itt telephone 112 to ring.

The control circuit 16 obtains on-hook/off-footer information from the off-book detectors 27 corresponding to all telephones 12, and
! r! Monitor whether there is a response within 3 times.

(A) If there is a response within the above three rings, the control circuit 16 restores the relays r13 to r53 and relays r14 to r54 corresponding to all the telephones 12, turns on the relay r01, and, for example, the 1'ii telephone 112 goes off-hook and responds, the crosspoints (B, O) and (B, l) of the crosspoint circuit 31 are turned on, and the intercom call state is established. Also, for example, the second @talk unit 212
When the caller responds by going off-hook, the crosspoints (B, O) and (B, 2) of the crosspoint circuit 31 are turned on, and an intercom call state is established.

Next, the door intercom talking machine 12 goes on-hook, and the extension loop detector 28 transfers this on-hook information to the control circuit 16.
, the control circuit 16 switches the relays r13 to r53 corresponding to all telephones 12 to the ringing signal oscillator 26,
Relays r+4 to r54 are switched to off-footer detector 27, and all telephones 12 are made to ring. When the off-hook detector 27 detects that any telephone 12 is off-hook, the control circuit 16 restores the relays r13 to r53 and relays r14 to r54, and also restores the cross point of the cross point circuit 31 (A, 6). For example, when the first telephone 112 goes off-hook and responds, the cross point (A, 1) of the cross point circuit 31 is turned on to restore the outside line call state.

Also 1 For example, Episode 2 L &! 212 responds by going off-hook, the crosspoint (A, 2)2 of the crosspoint circuit 31 is turned on to restore the outside line communication state.

(B) If there is no response within the above-mentioned three rings, the control circuit 16 transmits the relays r13 to r53 corresponding to all telephones 12,
and relays r14 to r54 are restored and stop ringing, (
αIf any telephone 12 responds within those few seconds, a door intercom call state is established in the same way as in (A) above, and @ any telephone 4. If there is no response at t12, the device enters a standby state.

Next, in the standby state, when any telephone 12 is off-hook and "θ" dialed, the control circuit 16 turns off the crosspoint (A, 6) of the crosspoint circuit 31 and restores the outside call hold. , for example, the first 'i! When the handset 112 goes off-hook and dials "0", the crosspoint (A, 1) of the crosspoint circuit 31 is turned on to restore the outside line communication state. Also, for example, the second telephone 21
2 goes off-hook and dials "0", the cross point (A, 2) of the cross point circuit 31 is turned on to restore the outside line communication state.

Next, the operation of the above embodiment will be explained.

According to the above embodiment, when there is a visitor or the like during an outside line call and the control circuit 16 receives a call signal from the doorbell 13 from the visitor or the like, the control circuit 16 sends an interrupt signal to the telephone 12 during the outside line call. Connecting the oscillator 23 to the telephone 12
Sends an interrupt signal to This allows phone users to
Even when an outside call is in progress, the presence of a visitor etc. can be recognized and the doorbell call can be answered promptly.

That is, in this embodiment, the door phone 13 is
When the push button is pressed, an interrupt signal is sent to the telephone 12 during an outside line call.Next, by putting the outside line on hold, the telephone 12 in use can talk to the doorphone 13, and the doorphone call ends. By later canceling the external call hold, you can resume the previous external call.

In addition, in implementing the present invention, the other telephones 12 may be deflected at the same time that the interrupt signal is input to the telephone 12 in use.

Further, in one embodiment of the present invention, when a telephone a12 other than the one telephone in use responds to the doorphone 13 and establishes a doorphone call under a bad outside call hold condition.

Before the intercom call ends, the outside call hold may be canceled and the outside call may be restarted using a telephone set 12 other than the telephone set during the intercom call.

[Effects of the Invention] As described above, according to the present invention, it is possible to appropriately respond to a doorbell call by a visitor or the like even during an outside call.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing a telephone device according to an embodiment of the present invention, FIG. 2 is a flowchart corresponding to the outside line calling mode, FIG. 3 is a flowchart corresponding to the outside line receiving mode, and FIG. 4 is an internal line calling mode. FIG. 5 is a flowchart corresponding to the doorphone call mode, and FIG. 46 is a flowchart corresponding to the doorphone interrupt mode during an outside line call. 10... Telephone device, 12... Telephone, 13... Door phone, 15... Main telephone circuit, 1B... Control circuit,
18A, 18B... Office line, 19A, 19B... Telephone line. 20A, 20B...Telephone line, 23...Interrupt signal oscillator (interrupt signal generator), 31...Cross point circuit (exchange circuit section). Patent applicant: Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaorubo 20 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] (1) The main telephone circuit connected to the office line, and the main telephone circuit connected to the main telephone circuit.
A telephone device that includes a telephone connected via a main telephone line, a doorbell connected to a main telephone circuit via two telephone lines, and a control circuit that drives and controls the main telephone circuit. The main telephone circuit is equipped with an interrupt signal generator, and
It is equipped with a switching circuit section that can perform exchange connections between a central office line and a telephone, exchange connections between a telephone and a doorbell, and exchange connections between a telephone and an interrupt signal generator. A telephone device that connects an interrupt signal generator to the telephone that is making an outside line call and sends an interrupt signal to the telephone when receiving a calling signal from a doorbell while the telephone is in a talking state.