JPH05268607A - Interphone device - Google Patents

Abstract

PURPOSE:To enable a user to immediately discriminate a calling doorphone slave machine with camera only at the sight of a picture on a monitor master machine. CONSTITUTION:This device is provided with (plural doorphone slave machines 110 and 120 with camera)(a monitor master machine 130 which detects a doorphone slave machine with camera as the call source at the time of call from one of these doorphone slave machines 110 and 120 with camera and projects the, image of a visitor picked up by this doorphone slave machine with camera, and a speaking part 140 for speaking. The monitor master machine 130 is provided with a character superimposing display circuit 135 which superimposes arbitrary KANA (Japanese syllabary) characters, which are set by a KANA character setting circuit 137, as the discrimination name of each doorphone slave machine 110 or 120 with camera, on the image of the visitor picked up by the doorphone slave machine 110 or 120 with camera.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom system having a plurality of intercom slaves with cameras and a monitor master connected to these.

[0002]

2. Description of the Related Art FIG. 3 shows the structure of a conventional intercom system. In FIG. 3, reference numerals 310A and 310B respectively denote a first door intercom slave with camera and a second intercom slave with camera that send out the image and sound of the visitor. A camera circuit 311 for transmitting, a microphone 312 for capturing a voice of a visitor and transmitting an audio signal, a modulation circuit 313 for modulating a video signal from the camera circuit 311 and an audio signal from the microphone 312, and a speaker 314 are connected. Call circuit 315
And a calling circuit 317 for sending a calling signal when the calling switch 316 is pressed.

Reference numeral 320 denotes a door phone subunit 3 with a camera.
10A and 310B are monitor masters connected by two lines, and the intercom I / F circuit 321 that connects the camera-equipped intercom slaves 310A and 310B, and the call signals from the camera-equipped intercom slaves 310A and 310B. Doorphone detection circuit 322 for detecting and doorphone subunit 310 with each camera
Demodulation circuit 323 for demodulating the modulated signal from A and 310B
, A CRT 324 displaying a video of a visitor, a call I / F circuit 325 with a call section 330, which will be described later, and an AC100.
And a power supply circuit 326 for converting V into DC.

Reference numeral 330 denotes a communication unit with the intercom slaves with cameras 310A and 310B connected to the monitor base unit 320, which includes a communication circuit 333 connected with a speaker 331 and a microphone 332, a calling circuit 334, and a power supply circuit 335. I have it.

Next, the operation of the above conventional example will be described.
In FIG. 3, when a visitor presses the call switch 316 of the first intercom slave with camera 310A, a call signal is sent from the call circuit 317 to the monitor master 320.

In the monitor base unit 320, a calling signal is input to the doorphone detection circuit 322 through the doorphone I / F circuit 321, and the calling signal is sent from either the first or the second intercom subunit with camera 310A, 310B. What has been done is detected. In this case, the intercom detection circuit 3
22 identifies the calling signal sent from the first intercom slave with camera 310A, opens the communication circuit to the side of the first intercom slave with camera 310A by the intercom I / F circuit 321, and boosts the transmission voltage. At the same time, call I / F circuit 3
A calling signal is sent to the calling section 330 through 25, and the calling circuit 334 that receives the calling signal sounds a ringing tone.

In this way, when the voltage sent to the first intercom slave with camera 310A is boosted, the camera circuit 311 is activated, and its video signal is modulated by the modulation circuit 313.
And is sent to the monitor base unit 320,
The audio signal from the microphone 312 is modulated by the modulation circuit 313 and is similarly sent to the monitor parent device 320.

In the monitor base unit 320, the modulated video signal and audio signal are demodulated by the demodulation circuit 323, the video signal is input to the CRT 324 to display the video of the visitor, and the audio signal is the call I / F circuit 325. Through call section 3
The voice of the visitor is output from the speaker 331 by being input to the call circuit 333 of 30.

The voice input from the microphone 332 of the call unit 330 is input from the call circuit 333 to the first intercom subunit with camera 310A in the baseband, and the call circuit 31
5 is output from the speaker 314.

When a call is made from the second intercom slave with camera 310B, the calling signal is identified by the intercom detection circuit 322 and the second intercom slave with camera 3 is provided.
The call circuit is opened on the 10B side, and in the same way, the image of the visitor captured by the second camera-equipped intercom slave 310B is CR.
It is displayed on T324, and the sound is output from the speaker 331 of the call unit 330.

As described above, in the above-mentioned conventional intercom apparatus, a plurality of intercom slave units with cameras 310A and 310B can be connected to the monitor master unit 320 to call or talk.

[0012]

However, in the above-mentioned conventional intercom apparatus, since a plurality of door intercom slaves with cameras are connected to the monitor master, it is not possible to see the image displayed on the monitor master. However, there is a problem that it is not possible to immediately know which camera-equipped intercom slave device has an image, and therefore which camera-equipped intercom slave device is calling.

The present invention solves such a conventional problem, and provides an excellent intercom device capable of immediately determining which camera-equipped intercom handset is calling by just looking at the image of the monitor base unit. It is intended to be provided.

[0014]

In order to achieve the above-mentioned object, the present invention provides a monitor base unit with an image of a visitor captured by each intercom slave with camera as an identification name of each intercom slave with camera. A character super display means for superimposing a preset arbitrary character is provided.

Further, the present invention comprises a character setting means capable of inputting an arbitrary character.

[0016]

Therefore, according to the present invention, when a call is made, a character indicating the camera-equipped intercom slave that is capturing the image is displayed in the image displayed on the monitor parent device. You can immediately determine which camera-equipped intercom handset is calling by just watching the video.

Further, according to the present invention, since any character can be set by the character setting means, it is possible to make the display easy for the user to understand.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, reference numerals 110 and 120 denote a first intercom slave with camera and a second intercom slave with camera, respectively, which send out a video and audio of a visitor, and 130 represents these intercom slaves with camera 110 and 120. Is a monitor master unit connected by two lines, and 140 is a communication unit with the intercom slave units 110 and 120 with cameras connected to the monitor master unit 130.

The first intercom 110 with camera has a camera circuit 111 for capturing an image of a visitor and transmitting an image signal.
A microphone 112 that captures a visitor's voice and outputs an audio signal; a modulation circuit 113 that modulates a video signal from the camera circuit 111 and an audio signal from the microphone 112;
A call circuit 115 to which the speaker 114 is connected, and a call circuit 117 for sending a call signal by pressing the call switch 116 are provided.

The second camera-equipped intercom slave 120 is the first
It has the same configuration as that of the camera-equipped intercom slave 110.

The monitor base unit 130 is a doorphone I / F circuit 13 for connecting the doorphone subunits 110 and 120 with cameras.
1, a doorphone detection circuit 132 that detects a calling signal from each of the intercom slaves 110 and 120 with a camera, a demodulation circuit 133 that demodulates a modulated signal from each of the intercom slaves 110 and 120 with a camera, and an image of a visitor. CRT projecting images
34 and a character super display circuit 135 for inserting an arbitrary Kana character set in advance as an identification name for each door intercom slave with camera 110, 120 into a part of an image captured by each intercom slave with camera 110, 120. And a kana character setting circuit 137 for setting an arbitrary kana character by the input operation of the setting switch 136, a call I / F circuit 138 with the call section 140, and a power supply circuit 1 for converting AC100V into DC.
And 39. FIG. 2 shows a character super display circuit 1.
35 shows the configurations of 35 and kana character setting circuit 137. The character super display circuit 135 includes the sync separation circuit 20.
1, LSI for on-screen character display 2
02, a CPU 203, and a kana character setting circuit 137 has a buffer circuit 204 connected to the CPU 203.

The call section 140 includes a call circuit 143 to which a microphone 141 and a speaker 142 are connected, and a call circuit 14
4 and a power supply circuit 145.

Next, the operation of the above embodiment will be described.
In the operation of this device, an identification name is provided for each of the first and second intercom slaves with a camera 110, 120, and the kana character setting circuit 137 allows an arbitrary name to be input through the input operation of the setting switch 136 in the monitor main unit 130. It is set as the Kana character of. Now, when a visitor pushes the call switch 116 of the first intercom slave with camera 110, for example,
A calling signal is sent from the calling circuit 117 to the monitor base unit 130.

In the monitor base unit 130, a calling signal is input to the doorphone detection circuit 132 through the doorphone I / F circuit 131, and the calling signal is sent from either the first or the second intercom subunit 110 with a camera. What has been done is detected. In this case, the intercom I / F is identified as a calling signal from the first intercom slave with camera 110.
The circuit 131 opens a communication circuit to the side of the first intercom slave with camera 110 to boost the output voltage. At the same time, the call I / F circuit 138 sends a call signal to the call section 140, and the call circuit 144 that receives the call signal causes the call tone to ring in the call section 140.

In this way, when the voltage to the first intercom slave with camera 110 is boosted, the camera circuit 111
Is activated, the video signal is modulated by the modulation circuit 113 and sent to the monitor master unit 130, and the audio signal from the microphone 112 is modulated by the modulation circuit 113 and similarly sent to the monitor master unit 130. ..

In the monitor base unit 130, the demodulation circuit 133 demodulates the modulated video signal and audio signal. The demodulated video signal is used to identify any of the camera-equipped intercom slaves detected by the intercom detection circuit 132 in the superimposition display circuit 135, that is, an arbitrary kana for identifying the first camera-equipped intercom slave 110 in this case. The characters are added, and the image of the visitor and the kana character indicating the first intercom subunit with camera 110 are displayed on the CRT 134. The demodulated voice signal is input to the call circuit 143 of the call unit 140 through the call I / F circuit 138, and the voice of the visitor is output from the speaker 142.

The voice input from the microphone 141 of the call unit 140 is input from the call circuit 143 to the first intercom subunit 110 with a camera in the base band, and the call circuit 115.
Is output from the speaker 114 via.

When a call is made from the second intercom slave with camera 120, the calling signal is identified by the intercom detection circuit 132 and the second intercom slave with camera 12 is called.
The call circuit is opened to the 0 side, and in the same way, the second image of the visitor captured by the second intercom slave with camera 120 is displayed.
Any Kana characters indicating the intercom slave with camera 120 are superimposed and displayed on the CRT 134.
The voice is output from the speaker 142 of the call unit 140.

As described above, according to the above-described embodiment, the character super display circuit 135 in the monitor base unit 130 causes
The door intercom slaves 110 and 120 with cameras are preliminarily added to the images captured by the first and second intercom slaves with cameras 110 and 120.
Since an arbitrary kana character set as an identification name is added to each of them, it is possible to call from either the first or the second door intercom with camera 110 or 120 just by watching the video of the monitor base unit 130. You can judge immediately.

Further, according to the above-described embodiment, since any kana character can be set by the kana character setting circuit 137, it is possible to make the display easy for the user to understand.

In the above embodiment, the characters superimposed on the image of the visitor were kana characters, but other characters or symbols may be used to identify the plurality of intercom slave units with cameras.

[0032]

As is apparent from the above-described embodiments of the present invention, the monitor base unit sets a preset image as an identification name of each camera-equipped doorphone handset in the image of the visitor captured by the camera-equipped doorphone handset. Since the character super display means for superimposing the character is provided, it is possible to immediately determine which camera-equipped intercom slave is calling by just looking at the image of the monitor master.

The present invention also has a character setting means capable of inputting an arbitrary character, and thus has an effect that a display which is easy for the user to set can be set.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an intercom apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of a character super display circuit and a kana character setting circuit of the same intercom device.

FIG. 3 is a schematic block diagram of a conventional intercom device.

[Explanation of symbols]

110 First Doorphone with Cameras Handset 111 Camera Circuit 112 Microphone 113 Modulation Circuit 114 Speaker 115 Calling Circuit 116 Ringing Switch 117 Ringing Circuit 120 Second Doorphone with Phones 130 Monitor Master Unit 131 Doorphone I / F Circuit 132 Doorphone Detection Circuit 133 Demodulation circuit 134 CRT 135 Character super display circuit 136 Setting switch 137 Kana character setting circuit 138 Call I / F circuit 139 Power supply circuit 140 Call section 141 Microphone 142 Speaker 143 Call circuit 144 Call circuit 145 Power supply circuit 201 Sync separation circuit 202 On LS for screen character display
I 203 CPU 204 Buffer circuit

Claims (2)

[Claims] 1. When a call is made from a plurality of intercom slaves with cameras and one of these intercom slaves with cameras, the intercom slave with camera of the calling source is detected and the intercom slave with camera is detected. A monitor base unit that displays the captured image of the visitor and a call unit for making a call, and the monitor base unit includes the camera-equipped doorphone in the captured image of the visitor of each doorphone with camera. An intercom apparatus including a character super display unit for superimposing an arbitrary character preset as an identification name of a slave unit. 2. The intercom apparatus according to claim 1, wherein the monitor master unit is provided with a character setting unit capable of inputting an arbitrary character for each intercom slave unit with a camera.