JP2010074756A - Intercom device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intercom device which communicates with another intercom unit while a video is being outputted from an entrance door sub unit. <P>SOLUTION: The intercom device is provided with: an entrance door sub unit having a camera for photographing a visitor; and a living room main unit and an additional living room main unit each having a monitor for outputting a video photographed by the camera thereto. The intercom device displays the video from the entrance door sub unit on the living room or additional living room main unit. The living room or additional living room main unit is provided with: an acoustic section for communicating with the other intercom unit; a video channel switch for switching between connection and disconnection of a video channel for a video signal from the entrance door sub unit; a speech channel switch for switching between connection and disconnection of a speech channel of a voice signal with the entrance door sub unit or with the other intercom unit; and a CPU for establishing connection of the video channel with the entrance door sub unit and also the speech channel with the other intercom unit when an extension line operation with the other intercom unit is conducted during communication with any one of the entrance door sub unit, living room main unit and additional living room main unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an interphone device, and more particularly to an interphone device capable of performing an extension call with another interphone master unit while outputting a video signal from an entrance slave unit to a monitor.

Conventionally, an interphone device that can make an extension call between parent devices in an interphone device that can notify / respond to a plurality of parent devices installed in a living room when a call is made at a front door device. It is known. For example, Patent Document 1 discloses a two-wire TV interphone that can prevent the mixing of sound from a door phone slave unit when an extension call is made between interphone master units.
JP 08-0656557

However, in the intercom device of Patent Document 1, it was not possible to make a simultaneous call between interphone master units with a monitor TV when calling from a doorphone slave unit or during a call. Therefore, even if an attempt was made to consult with the family whether the visitor who performed the call operation with the doorphone cordless handset was a suspicious person, it was not possible to make a call with another intercom device.

The present invention has been made to solve this problem, and it is an object of the present invention to provide an interphone apparatus that can talk with other interphone devices in a state where an image from an entrance cordless handset is being output. .

In order to solve the above-mentioned problems, the invention described in claim 1 is characterized in that an entrance cordless handset provided with a camera that images a visitor, and a living room parent device provided with a monitor that outputs an image captured by the camera, or an extension In an intercom device that makes a call on the main unit and displays the video from the front unit on the main unit or on the additional unit A video path switching unit for switching video path connection / blocking of the video signal from the entrance unit, a speech path switching unit for switching voice path connection / blocking of the audio signal with the entrance unit and other intercom devices, When an extension operation is performed with another interphone device while talking to any one of the slave unit and the living room base unit or the extension room base unit, the video path with the entrance unit and the communication path with the other interphone device Touch Characterized by comprising a CPU to transmit a control signal to.

According to the first aspect of the present invention, it is possible to make an extension call with another interphone device while confirming the video from the entrance slave unit when talking with the entrance slave unit.

Hereinafter, preferred embodiments of an interphone system according to the present invention will be described with reference to the drawings.
FIG. 1 shows a block diagram of an intercom system. As shown in FIG. 1, the intercom apparatus according to the present invention includes an entrance cordless handset 1, a living room master unit 2, additional room master units 3a, 3b,.

The entrance cordless handset 1 includes a camera 101 that captures an image of the gate or the vicinity of the entrance, a call button 102 for a visitor to call a resident, an acoustic unit 103 for calling with the resident, a room base unit 2 and an extension. It is comprised by the subunit | mobile_unit I / F104 for communicating with living room main | base station 3a, 3b, ....
The living room master unit 2 and the extension living room master units 3a, 3b,... Have monitors 201, 301a, 301b,... That output images captured by the entrance camera 101, and call operations for the resident to respond. And the operation buttons 202, 302a, 302b,... For performing extension operations with other intercom devices, and the sound units 203, 303a, 303b,. .., And a video path switching unit that switches between video path connection / blocking of video signals from the entrance slave unit 1. The master CPU 204 controls the extension room master units 3a, 3b,. 205, 305a, 305b,..., And speech path switching units 206, 306a, 306 for switching speech path connection / blocking of audio signals between the entrance cordless handset and other intercom devices. A., The master unit I / F 207 for communicating with the entrance door station 1 and other intercom devices, expansion I / F307a, 307b, is composed of ....

Next, the operation will be described.
When a visitor operates the call button 102 of the front door 1, the call signal is sent to the master CPU 204, the extension CPU 304 a, via the slave I / F 104, the master I / F 207 b, the extension I / Fs 307 a, 307 b,. 304b,... The master unit CPU 204 and the extension CPUs 304a, 304b,... That have received the call signal control to output ringing sounds from the sound units 203, 303a, 303b,... And the speech path switching units 206, 306a, 306b. ,... Are transmitted with a one-way speech path connection signal that allows only the audio signal from the entrance cordless handset 1 to pass through, and the video path connection signals are transmitted to the video switching units 205, 305a, 305b,. Then, the audio signal from the acoustic unit 103 of the entrance slave unit 1 is transmitted through the slave units I / F 104, the master unit I / F 207, the extension I / Fs 307a, 307b,. The video signal from the entrance camera 101 of the entrance slave unit 1 is output via the slave unit I / F 104, the master unit I / F 207, the extension I / Fs 307a, 307b,. Are output to the monitors 201, 301a, 301b,.

At this time, when a call operation is performed using the operation button 202 of the intercom device that performs the call, for example, the living room master unit 2, a bidirectional communication path connection signal is transmitted to the call path switching unit 206, and the extension master units 3a, 3b,. .. And the video path switching units 305a, 305b,... With these signals, the audio signal from the room master unit 2 can be output from the acoustic unit 203 via the speech path switching unit 206, the master unit I / F 207, and the slave unit I / F 104 at the acoustic unit 103. A two-way call can be made. Further, the video signals to the monitors 301a, 301b,... Of the extension master units 3a, 3b,.

Here, an operation will be described in the case where an extension call is made from the living room main unit 2 to the additional room main unit 3a while the front door unit 1 and the living room main unit 2 are talking.
When the main unit CPU 204 performs an extension operation with the operation button 202 during a call between the front door unit 1 and the living room main unit 2, the main unit CPU 204 connects the extension channel connection signal for connecting the communication channel with the additional master unit 3a to the communication channel switching unit 206. And an extension signal is transmitted to the expansion CPU 304a via the master unit I / F 207 and the expansion I / F 307a. The extension CPU 304a that has received the extension signal transmits an extension line connection signal for connecting the call path with the room base unit 2 to the call path switching unit 306a, and also transmits the video signal from the entrance terminal 1 to the video path switching unit 305a. A video path connection signal for connecting is transmitted.
That is, the audio signal from the living room master unit 2 is output from the acoustic unit 203 to the acoustic unit 303a via the speech path switching unit 206, the master unit I / F 207, the extension I / F 307a, and the speech path switching unit 306a. The audio signal from the master unit 3a can be output from the acoustic unit 303a to the acoustic unit 203 via the speech path switching unit 306a, the extension I / F 307a, the master unit I / F 207, and the speech path switching unit 206. The video signal from the entrance camera 101 of the entrance slave unit 1 can be output to the monitor 301a via the slave unit I / F 104 and the extension I / F 307a.

Accordingly, when an extension call is made to the extension room master unit 3a while the telephone 1 and the master unit 2 are talking, an image is displayed on the monitors 201 and 301a of the extension base unit 2 and the extension room master unit 3a. While outputting, it is possible to make a call between the acoustic unit 203 of the living room master unit 2 and the acoustic unit 303a of the additional room master unit 3a.
It is also possible to make an extension call with another intercom device before calling from the entrance and entering the call.

The system block diagram of the intercom apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Entrance child machine 101 Camera 2 Room parent machine 201 Monitor 203 Sound part 204 CPU
205 Video path switching unit 205 Call path switching units 3a, 3b ... Extension room master units 301a, 301b ... Monitors 303a, 303b ... Sound units 304a, 304b ... CPU
305a, 305b ... Video path switching unit 306a, 306b ... Speech path switching unit

Claims (1)

A door-to-door unit (1) having a camera (101) that captures a visitor and a monitor (201, 301a, 301b,...) That outputs an image captured by the camera (2) ), Or an intercom device that displays a video from the entrance cordless handset with the extension room master unit (3a, 3b,...)
The living room base unit and the extension room base unit connect and block the audio path (203, 303a, 303b,...) For communicating with other interphone devices and the video path of the video signal from the entrance unit. .., And a speech path switching unit (206, 306a, 306b,...) That switches speech path connection / blocking of audio signals between the entrance cordless handset and other intercom devices. ..), and when the extension operation with another intercom device is performed while talking with any one of the entrance slave unit and the room master unit or the extension room master unit, an image of the entrance slave unit Interphone apparatus comprising a CPU (204, 304a, 304b,...) For transmitting a control signal for connecting a road and a communication path with the other interphone device.

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