JPS5862959A - Callout signal system for door phone - Google Patents

Abstract

PURPOSE:To recognize a visitor during the call between extensions, by preventing a callout tone of high level from being mixed to the extension calls through the stopping of the display for callout ringing of a telephone set, when a callout comes from a door phone while a button telephone set is in service. CONSTITUTION:A main device ME is connected to a button telephone set TEL, a microprocessor CPM of the ME and an extension circuit PRV are connected to a door unit DHU and a door phone DH is connected to the unit DHU. An extension call display lamp PL, a door phone call display lamp DL, and a speaker SPT connected to an amplifier AMT are connected to a microprocessor CPT of the telephone set TEL. When the telephone set TEL is busy, if a call comes from a door phone DH, the display of a display lamp PL is stopped with the processor CPM and CPT, the extension circuit PRV changes over a switching circuit ECX to prevent a channel network NWT for telephone set from being mixed with a call tone of high level.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a ringing signal method for calling a telephone from a doorbell in a telephone telephone device. For example, a door phone may be installed near the gate, and a door phone installed inside the butane telephone device may be used to make calls using a butane telephone.
The system is configured so that a call can be made between the doorbell and the button telephone using call line #I't12.
゛Conversation between the doorbell and the ltan telephone is carried out by a microphone and speaker in the doorbell, and a handset on the ftan telephone side, and a call from the doorphone to the tanne telephone is made by the visitor pressing the call switch on the doorbell. The call is indicated on the telephone by an audible indication, e.g. a chime, and a visible indication, e.g. by a light emitting diode (calling the doorbell from a telephone does not normally require a call), and is also indicated by an audible indication, e.g. a light emitting diode, on the doorbell speaker. From there, a so-called call-back sound is emitted, so that the visitor who presses the call switch is the one who is calling. It is configured so that ¥ can be given M edict.

And in order to connect the door phone t-f tongue telephone system fillK, the door phone and the evening? /1 to fit the packing equipment (
A doorphone control device (hereinafter referred to as a doorphone unit) is installed as an interface circuit between the so-called main unit and the main unit.
) is provided, and operations for calling the Getan and III telephones from the doorphone and calls between the doorphone and the Garin telephone are all performed by the doorphone Uni.

This is done through the website.

In order to reduce the number of connections between the main device and the button telephone, such I-tan telephone devices generally use a part of the communication path as a transmission path for the calling signal.
A separate communication path is not provided as a communication path for the doorphone, but an internal FII communication path is used.

For this reason, if a call is made from the doorbell while internal calls are being made between two Itan telephones, a ringing sound will be mixed into the inter-extension telephone call, and what's more, the ringing tone will come from the speaker of the Gatan telephone. Since the sound is generally transmitted at a high level, it is undesirable because it is emitted at an extremely loud volume from the handset of the i&tan telephone and interferes with the inter-extension calls. In such a case, it becomes necessary to stop the ringing sound from the KFi doorbell, but on the other hand, even in such a case, there is a way to stop the ringing tone from the doorbell. The present invention has been made for the purpose of providing a doorbell ringing signal system that satisfies the above-mentioned points. When the telephone receives a call from the doorbell, Fi will stop the audible display on the button phone and display the call only on the visual display, and will respond to the doorbell even if the button phone is busy as described above. A callback tone is sent out so that visitors can confirm the call operation.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

The drawings are professional diagrams of the embodiment showing parts related to the present invention, where ME is the main device, the station is the one-tank portage machine, DH is the door phone, and DHU is the door phone unit.

It is.

In the main device ME, the extension circuit that supplies current for intercommunication between PRv#i extensions, etc., and CP'M control each virtue *'6 in the main device MB according to a preset program.
'Doorphone Uni, ) D) ILT and Gatan 11 Ayu-
It is a microprocessor that performs (1) exchanging various letters with the EL, etc.).

Butane telephone placed horizontally. In the K, EX is a changeover switch that changes between the calling state and the talking state. For AM, there is a switch that amplifies the calling signal. 5 PTFi is a speaker that converts the calling signal into an audible sound and emits it. Telephone network, T and R are the transmitter and handset % of the handset, respectively.
(pT is each control of the Ittankiwa device (switching control of the switching switch EX,
The microprocessor (PL and DLFi) performs visual and display control of the status of each line, PL and DLFi, respectively. It is.

At the door phone DIIK, switch for calling swFi (usually the non-talking, ri-shaped O press is the switch.

h), 线 is the telephone call circuit network for the doorbell, M is the microphone that converts the visitor's voice tube electrical signal, and 8PD public telephone $ ? A speaker that converts the audio signal from the LL into an audible sound and emits it.

Door phone unit DHIJ K 1kh 1. υ's cry 2
It is a two-way amplifier circuit that amplifies the voice signal from the telephone T and the voice signal from the doorphone unit, respectively. The transmission loss detection circuit, CHC, is the ringing signal for the doorbell (1, where a chime sound is often used) t-The signal sound circuit that generates, Glt!-
Communication path between telephone stack and door phone DH: t-open/close r-) circuit, G2 r-) circuit for transmitting callback tone to door phone DH, G3d signal tone circuit CHC:
'c) This is a circuit for transmitting the generated calling signal to the T-Katan telephone equipment.

In addition, Ll-L9 is a symbol attached to each woodcutter signal line and communication line for convenience.

First, we will describe the operation when a call occurs from the door phone Dll when the -tan telephone station is not in the middle of a mutual call.

When a visitor operates the switch 8W of the doorphone 1)H, the call information is detected by the detection circuit DET of the doorphone unit 1)DHU, and the call information is sent to the main device M by the signal line L6. Ikuo7'rose,suePM
is input. - v Ichrono, a Seras CPM, when the above call information O is input, the state at that time is that the telephone is in the horizontal position, that is, the butan telephone is not in the state of inter-extension communication, and the signal 1IL3. Send the ninth control signal to open r-) to L4 and ff-) circuit-G2 and G3t
-N< and sends a start signal for the signal tone circuit -CHC to the signal 1IL5 to start it. Further, the microprocessor CPM controls the illustrated switch circuit to connect the extension circuit PRY and the call@L9.

Furthermore, when the microprocessor CPM inputs the above call information, it sends the call information to the telephone device via the signal @L7, and controls the selector switch NX in the microprocessor CPT. T: Connect it*mL gain and amplifier and send a start signal to the AMT to start it.
Furthermore, the status of the door phone 1SH is indicated by flashing the display DL to indicate that a call from the door phone DH is visible.
Through the following 10 controls, a ring tone is transmitted to the one-touch telephone device, and a call return tone from the door phone DHtCa is transmitted and emitted through the following routes.

(Ring tone transmission path) - Signal tone circuit cncn goot circuit G3 - Call #Ll - Inner l
i[1lIP! 1st road PRv...Telephone line L9-4
iFJ replacement switch, f #j
Call-to-road network speaker BFD One-tonne call in response to a call from the door phone DI @
When I answered by picking up the handset on TICL, - Tanden I tgt, o'; When the switch is closed, a call DC loop is formed, and the microgross CPT detects the closing of the switch as response information and controls the changeover switch EX\r, and connects the call line L9t to the call line When switching between networks, the J status display lamp DLt immediately changes from blinking to lit to indicate a busy display, and at 11"'M, the activation signal to AMT is declined and its activation is turned off. Stop.

In addition, the 4-iCPT sends the above response information to the main storage M goose's micronorose via the II @L-8.
f CPM K transmission, the corresponding microphone of rosette, ?
Upon receiving the above response information, the CPM sends a signal @L3. L4 and L
Cut off the 9 control signal being sent to r-) circuit G2゜G
3', stops the activation of the signal tone circuit Cf1C, sends a control signal to the signal line L2 to open the f-) circuit Gl, opens it, and connects JILI and AN7'A.
MD t-Connect.

With the above operations, the sending of the ring tone to the Itton telephone device and the sending of the call back tone to the door phone DH are both stopped, and two-way communication between the door phone DH and the Seven-Tan telephone TICL is carried out via the following route. becomes possible.

(Door phone call route) '41*yt-7M-JJ-call circuit network I-amp M
ΦSpeaker 8PD-r-to circuit Gl-talk line Ll-inside III! Times PR
Y...Call @L9-switch switch, Chi-Bx-call circuit network transmission! ! S? NWT E Paste-8 Next, we will discuss the operation when a call occurs from the door phone DH while two telephones are placed horizontally.

In this case, under the control of the microprocessor CPM of the main device MIC, a switch circuit (not shown) is switched to the extension circuit pnv@, and the two ? Tan Telephone Tvtom Talk J
IitL9 is connected to the upper wiring circuit PRYKm, and furthermore, the changeover switch gX is controlled from the CPT and the communication circuit #I
Is NwT and communication line L9 connected? 1. If the telephone is in a mutual communication state between two telephones after the telephone is installed. Further, the status display rung PL for internal line mutual communication is controlled to be lit to visually display the internal line mutual communication status l1t-.

In this state, when the visitor operates the switch 8Wt of the door phone DH to close it, the door phone unit DHU operates in the same way as when the above-mentioned ``Ah'' (hereinafter referred to as the above operation) is activated. Call information is input from the detection circuit DICT to the microprocessor CPM of the main unit Mffi. '-V icroglosse, f CPM
Now, by inputting the above call information, the state of the desired one-tan electric hook @ position, that is, the two Ga-tan electric hook TICL
If it is clear that a confidential mutual call is in progress between the two parties, the I-Tan telephone storage micro derosé, and the CP
Extension intercommunication information is sent from T to the microprocessor CPM of the main device Ml, and Cough! Ikloderose, tCP
MK service: Internal call information is written in the memory. ), Sends a control signal to open the dart to the signal @L4, opens the circuit G2, and does not open the r-t circuit G3 as in the operation described in Cl11), sends a start signal for the signal tone circuit CHC to the signal 1L5. Start this by sending . Similarly to the above operation, the call information from the door phone DH is also input to the Microcell CPT of the I-tan telephone storage, and the call information from the door phone DH is inputted to the I-tan telephone stack. The indicator lamp DL blinks to show the call pipe from the door phone DH.

Through the above control, the (callback tone sending path) in the above operation is formed, but the (ringing tone sending path) is not formed. Therefore, a call-back tone is not sent to the visitor who has made a call operation using the door phone DH, but a call signal is not sent to the d-tang phone placed horizontally, and no ring-back tone is emitted from the receiver vsR. In other words, when the telephone is placed horizontally, only the visual display is made by the display DL for calling charges from the door phone DH.

In addition, since the person on the other end of the call is near the horizontally placed telephone, the presence of a visitor can be sufficiently recognized just by the visual display.

If a call from the door phone DH is acknowledged by the visible display on the state II display Lande DL, the internal caller who is calling between internal lines or the two-way call is stopped or terminated and responds to the call from the door phone DH, the same operation as above (door phone DH) will be performed. A telephone call path) is established, and it becomes possible to make a call between the key telephone set hY and the Ahon DH-.

Although it is not shown in the figure, when there is a call from the door phone DI while the t-tang telephone is placed horizontally and is talking to the central office line, the same method as above is used, and the t-tang telephone device is visually displayed by the box-shaped display run fDL. Calls are displayed only by the doorbell D
A call back tone is sent to H, and a call @L9 is sent to desk 30.
11″1′ emergency circuit (not shown) and extension circuit PRY,
Since the switching control is performed in a narrow manner, it is impossible for the signal of the call #Ll to flow to the horizontal position of the telephone, and therefore the r-) circuit 01.
There is no need to pay attention to the control of G2, and the dirt circuit G2 is
4 and only need to perform control to send a callback sound to the door phone DH.

As described above, according to the present invention, when a call is received from the doorbell during a mutual internal call, a high-level ringing tone will not be mixed into the mutual internal call, and the scissors call #i may be interrupted. Since it is visually displayed on the telephone, the presence of a visitor can be recognized even when a call is being made between extensions, and a confirmation tone for the call operation is issued to the visitor regardless of whether or not there is a call between extensions. Various advantages such as being able to send a call and a callback tone can be enjoyed, and the present invention has extremely excellent effects.

[Brief explanation of drawings]

The drawings are professional diagrams of embodiments of the present invention. Main device - CPM: W ofo-kyte PRY: Inner circuit. (Methane telephone) 2x: Selector switch, AMT = amplifier, NWT:
Telephone network, DL: Door phone call circuit JI Ijirande. CPT: Microprocessor DI...Door phone SW: Call switch, switch, NwD: Call network DHU...Door phone unit, switch

Claims (1)

[Claims] When a doorbell is connected and a call from the doorphone is made, a visible and audible display is displayed on the phone and a ringtone is sent to the doorphone. When a call is received from the door phone while the phone is in a talking state, the audible display of the call on the button telephone is stopped.