JPS58159053A - Interphone transfer device - Google Patents

Abstract

PURPOSE:To constitute a titled device so that the person himself who is in a remote place can talk with a visitor standing at the door, by connecting an interphone and a telephone set. CONSTITUTION:When a visitor A pushes a calling push-button 2, telephone lines L1, L2 are closed through a line transformer LT by an FF-1 and a relay Y-1. When a dial tone is sent from an office, a dial tone detecting circuit 9 detects it, and an FF-2 is set. When the FF-2 is set, a motor M is driven to traverse an endless tape 13 in which abbreviated dialing is recorded and to send the abbreviated dialing to the office through a head RPH-1, an amplifying circuit 16, an analog switch 12 and a line switch LT. In this way, even the person himself who is in a remote place can talk with a visitor standing at the door.

Description

[Detailed description of the invention]
In 26), he proposed an automatic visitor response recording device. In this device, when a visitor came to the front door and signaled by ringing a bell, etc., the internal automatic reception device was connected to the outside, which allowed the visitor to record the caller's presence after informing them of their absence. However, if the owner does not live in this house,
For example, if you are in a faraway place in a foreign country, it is very difficult to listen to this when you get home.

In view of the above-mentioned points, the present application proposes that when a visitor is in an extremely remote location such as a foreign country, when a visitor comes, the person in the foreign country and the visitor outside the door are first called using an automatic dialing device. This makes it possible to make a call through the intercom handset with the feeling of being directly nearby.

Nowadays, with the development of speed dialing, it takes about 25 seconds on average to make a direct automatic dial (immediate dialing) call to a foreign country. Therefore, when the visitor hears the words ``Please wait a moment,'' the visitor speaks through the handset of the simultaneous intercom, giving the impression that the visitor is actually inside the room. .

The structure and operation of the present application will be explained in detail below.

In the figure, 1 is an intercom handset, which consists of a call push button 2, a microphone-cum-speaker 3, and connection lines i1 and n2.
, i3 is connected to the main unit.

4 is a bidirectional audio switch circuit with a known amplification circuit;
FF-1 is set by the call pushbutton 2 and reset by the 7-lip 70-tub FF-4 described later.
A lip-flop, y-i, is a closing relay driven by the above-mentioned FF-1, and 5 is a differential circuit that is driven by the output of the above-mentioned FF-1 and outputs one pulse. 6 is a voice synthesis circuit, and when a positive pulse is input to the start terminal 5TART while the chip select terminal cS is at the L level, the synthesized voice or me-sic specified by addresses AI and A2 is output to the terminal OUT. It is output from the microphone/speaker mentioned above. l is activated by the output of the differentiation circuit and first specifies the address A1 of the speech synthesis circuit ρ to output the synthesized voice "Please wait a moment" from the speech synthesis circuit ρ, and then switches to address A2. This is an address switching logic circuit that outputs music such as , music box, etc. Also, 8 is the telephone line L1, L
2 is an amplification circuit that amplifies the signal coming in, and 9 is a dial tone detection circuit that charges a capacitor 04 to a predetermined value when a continuous signal tone such as a dial tone is input. 10 is a differentiation circuit that outputs one negative pulse in response to the dial tone, FF-2 is a flip-flop that is set by the one pulse, and M is the FF-
This is a direct current motor that is energized by 2 to drive the endless tape 13 described later. Also, 11.12 is an analog switch, 13 is an endless tape on which the speed dial is recorded, 14 is a conductive foil affixed to the starting point of the tape,
b is an electrode short-circuited by the conductive foil. Further, 17 is a photocoupler that outputs an H level when called party B goes off-hook in response to a call, and a light emitting diode LE.
D. Consists of phototransistor PTR. Further, FF-4 is a 7-lip flop that is momentarily reversed to restore the device when the called party goes on-hook after the conversation between visitor A and called party B has ended.

This device is composed of the above-mentioned parts and has the following functions. First, when visitor A presses and releases call pushbutton 2, flip-flop FF-1 is set and maintains relay Y-1 in the operating state via output Q, and the contact y1-1 connects telephone lines Ll and L2. Closed via line transformer LT. Since L1 is + and L2 is - until called party B goes off-hook, photocoupler 17
The light emitting diode LED is in the opposite direction and no current flows in the LED.
does not light up. Therefore, the resistor R5 side of the phototransistor PTR is at the L level, the terminal 2 of the AND gate G-11 is at the L level, and the terminal 1 of G-1 is at the L level as described above. The terminal 3 becomes L level, and the speech synthesis circuit 9 is set to an operable state via the chip select terminal C8 of the speech synthesis circuit 6. On the other hand, when the above-mentioned 0FF-1 is sent, the differentiating circuit 5 is driven through its Q output, so that one pulse is applied to the 5TART terminal of the above-mentioned speech synthesis circuit 6, and the above-mentioned one pulse is used to address the address. Since the switching logic circuit 7 is initialized and the address terminal A1 is specified, the synthesized voice "Please wait a moment" corresponding to the address AI is output from the output terminal OU.
T and is transmitted to the visitor through the microphone/speaker 3. Further, when a dial tone is sent from the station due to the above-mentioned closure, it is amplified by the amplification circuit via the line transformer LT and introduced into the dial tone detection circuit 2. Here, the dial tone is rectified by diodes D2 and D3, smoothed by capacitor C3, and gradually charges capacitor C4 via inverter G-2 and resistor R3. For example, after 2 seconds, 04 is charged to a predetermined value and an AND gate is applied. Pull down terminal 2 of G-3 to L level. Terminal 1 of G-3 is the above F
The 4 outputs of F-1 are at L level, the terminal 3 of G-3 is at L level due to the output of the photocoupler 17, and the terminal 4 of G-3 is at L level due to the Q output of flip-flop FF-2 in the reset state. Therefore, the output terminal 5 of G-3 becomes L level and triggers the differentiating circuit 10 to output one pulse of about 1 second duration, which causes the flip-flop Fl-2 to output one pulse of about 1 second duration.
Set. The output of the FF-2 drives the motor M, which starts running the endless tape 13 on which the speed dial has been recorded in advance. This speed dial is reproduced by the recording/reproducing head RPH-1, amplified by the amplification circuit 16, and sent out in the cent state as described above.

On the other hand, when the output of the synthesized voice is finished by specifying the address A1 of the voice synthesis circuit p while the above-mentioned Endless Cheaply is running, the BUSY terminal changes from H level to L level. The music from a music box or the like is repeatedly output until the output terminal returns to the H level, which will be described later.

Now, when the endless tape goes around once, the conductive foil 14 and the electrode 15 come into contact with each other, thereby resetting the FF-2 and stopping the motor M1s and the endless tape 13.

On the other hand, when the foreign called party B who was called by the above-mentioned speed dial goes off-hook, the telephone line L1 switches to -, L2 switches to 10, the diode LED lights up, the phototransinator PTR turns on, and the above-mentioned Nantes gate G
Since the terminal 2 of the HlG-1 and the terminal 3 of the HlG-1 are set to H, the voice synthesis circuit 9 is made inoperative via the C8 terminal, so the oil coil etc. stop ringing. At the same time, the voice switch circuit 4 is activated by the output of the PTH, so that the visitor can talk to each other using the microphone/speaker 3, and the called party can talk to each other using a telephone (not shown). In this communication state, the capacitor C5 is charged through the resistor R6, and the terminal D (data terminal) of the flip-flop is pulled up to the H level. Therefore, when the call ends and the called party goes on-hook, the telephone line L1 goes back to 10 and L2 goes back to -, and the light emitting diode LED goes in the opposite direction.When the LED disappears and the phototransistor PTR turns off, The clock terminal !-C of the FF-4 becomes H through the FF-4, and the FF-4 is inverted to the set state.
Since FF-1 is reset via the output, relay Y-1
is restored and the closed state by relay contact y1-1 is released. Furthermore, when FF-1 is reset, FF-4 is also reset by its four outputs, and enters a standby state waiting for the next visitor.

At this time, the person himself spoke to visitors over the intercom, saying that he was currently taking a bath or sleeping, asking him to come back later, saying that he was having a fight, or asking them to contact So-so, in a manner that would not allow him to enter the room. Needless to say, do the following.

As described above, the present application connects a simultaneous intercom and a telephone line to a visitor, so that the person in a remote location such as a foreign country can directly communicate with the visitor at the front door (outside the door) via the telephone and intercom. This device allows the visitor to talk to the visitor as if he/she were actually present in the room, and thus presents and develops a new method of using this type of device, and its practical value is great.

[Brief explanation of drawings]

The figure is a circuit diagram of the present invention. applicant Hashimoto Corporation Co., Ltd. Representative Kazuhide Hashimoto

Claims (3)

[Claims] (1) An intercom handset installed outside the house, a simultaneous call type intercom base set installed inside the house, and when a call is received from the intercom handset, the intercom base unit is connected to the telephone line, A means for setting a telephone line in an off-hook state, an automatic dialing device for progamming the telephone number of the called party (owner) to call the called party, and confirming a dial tone after setting the telephone line to the off-hook state and dialing the telephone line. means for operating the device; means for holding a call between the intercom handset and the base unit from the time the intercom handset calls until the other party answers the call; An intercom transfer device characterized by comprising: a connection means for connecting a base unit and a slave unit of an intercom so that the other party can speak directly to the slave unit via a telephone line. (2) In (1) above, after the handset calls the base unit, the base unit calls the other party from the telephone line using the automatic dialing device. As described in (1) above, the device is configured to send music through a music box or the like after uttering the word "Please", and when the other party starts playing, it stops and immediately connects the other party and the handset directly. intercom transfer device. (3) In (1) above, in order to connect the intercom base unit and the telephone line, for example, connect via a touch-tone telephone, and the programming requires dialing using the speed dial function attached to the touch-tone. The intercom transfer device according to (1) above.