JP3031361B2 - Intercom with monitor TV - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to making an intercom call with a visitor while checking the appearance of the visitor imaged indoors with a camera-equipped door phone installed outdoors such as at the entrance of a dwelling unit. Related to intercoms with monitor televisions.

[0002]

2. Description of the Related Art Conventionally, as this kind of intercom with a monitor television, a monitor television for reproducing a video signal transmitted from a door phone with a camera and outputting it to a screen is used.
Usually, a monitor button for turning off and a call button for turning on / off an intercom call using a microphone or a speaker are provided. Conventionally, a type using a handset for intercom communication has been proposed. In this case, a hook switch of the handset functions as a call button for intercom communication. Conventionally, these monitor buttons and call buttons can only individually turn on and off the operation of the monitor television and the intercom call. That is, conventionally, the monitor button is used to turn on / off the monitor TV.
Only the call can be turned off, and the call button can only turn on / off the intercom call.

[0003]

SUMMARY OF THE INVENTION In the above prior art,
To turn on / off each of the monitor TV and the intercom call, it is necessary to operate both the monitor button and the call button individually, for example, to turn off both the monitor TV and the intercom call, Both the button and the call button had to be operated, which was cumbersome. Moreover,
In such an operation, for example, when the monitor TV is turned off and its display screen disappears even though the intercom call is on, there may be a case where the intercom call is mistaken as being off, There has also been a drawback in that conversational sounds inside the room are output from the camera-equipped door phone before the resident of the room knows.

[0004] The present invention has been proposed in view of the above points, and an object of the present invention is to provide an intercom with a monitor television which is easy to use for a user, for example, the interphone call and the on / off operation of the monitor television can be easily performed. That is the purpose.

[0005]

According to a first aspect of the present invention, there is provided an intercom with a monitor television, which comprises a microphone, a speaker, and a microphone.
Audio signal of the audio input from the
Transmit and output the outdoor sound transmitted from the camera intercom
Hands-free interphone to output from speakers
Call control means for controlling call communication;
Playback the video signal transmitted from the
A monitor TV to start the
An interface with a monitor TV equipped with an on / off call button
Phone, wherein the call control means is in an on state, and the
Notify when controlling intercom call
Call indicator light for calls from a camera-equipped door phone.
Automatically turns on the monitor TV when the
After that, the call control means is operated by operating the call button.
Start intercom call control, and monitor
Levi and call control means both turned on and intercom call
When the call button is operated while in the state
Monitor TV is switched off with call control
It is configured to:

A second aspect of the present invention provides a microphone and a speaker,
The audio signal of the audio input from the microphone is
Outdoor sound transmitted from the camera intercom
Hands-free interface to output voice from speakers
Communication control means for controlling telephone communication,
Play the video signal sent from the Ahon
And a monitor TV for projecting
A monitor button for on / off, and
An interface with a monitor TV equipped with a call button for turning on and off
A telephone, wherein the call control means is in an on state and the input is
Notify that when controlling the telephone call
Equipped with a call indicator for
Automatically turns on the monitor TV when the
Then, by operating the call button, the call control means
Both when starting the Ntahon call control, the Monitatere
B and call control means are both on and intercom call
When the call button is operated while in the state,
The monitor TV will switch off with the call control
It is configured as follows.

A third aspect of the present invention provides a microphone and a speaker,
The audio signal of the audio input from the microphone is
Outdoor sound transmitted from the camera intercom
Hands-free interface to output voice from speakers
Call control means for controlling a telephone call state, and the camera
Playback video signals transmitted from the
A monitor television for displaying images and this monitor television
A monitor button for turning on and off the video, and the intercom call
With monitor TV with talk button for on / off
A telephone, wherein the call control means is in an on state,
Notify when controlling intercom call
With a call indicator light to turn on the monitor TV.
If the call button is operated during standby,
Intercom call while the call control means
Control is started, and the monitor TV and the call control means are both
To turn on the
When the call button is operated, the monitor TV controls the call
It is configured to switch off together with the means.

[0008] Claim 4 is any one of claims 1 to 3
In this case, the monitor television and the call control means are both
When the call button is operated in the off state,
Nita TV switches on with call control means and talks
The control means is configured to start intercom call control.
Have been.

[0009]

According to the present invention, the above-mentioned structure is provided.
In any of the intercoms with a monitor television according to the present invention described in any of the above, it is determined whether or not the telephone is in an interphone call state.
Easy confirmation by looking at the call indicator light
Intercom with monitor TV with good hand can be provided
In addition, just operate one call button to communicate with the monitor TV.
Since both of the talk control means can be turned off at the same time,
Operation is easy , and only the monitor TV is turned off.
And forget to turn off call control
The advantage is that it is possible to more reliably prevent
You. In the present invention described in claim 4, one communication is performed.
By simply operating the talk button, the monitor TV and call control
You can turn on both at the same time and put in intercom call state
The switch operation becomes easy and the usability is good.
An intercom with a monitor TV can be provided.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a hardware configuration of an intercom 1 with a monitor television according to the present invention.
Is a front view showing the appearance. The intercom 1 with a monitor television is used by being connected to a camera intercom 3 having an imaging camera 30 via a communication line L, and performs impedance matching of a video signal transmitted from the camera intercom 3. A balanced / unbalanced matching circuit 12 to be performed is connected to the communication line L. The balanced / unbalanced matching circuit 12 is connected to a monitor television 20 and a circuit for executing an interphone call described later. The monitor television 20 includes a video buffer demultiplexing circuit 20c for demultiplexing the video signal, and a display screen 20a such as a CRT for displaying and reproducing and outputting the video signal on the screen under the control of the screen control unit 20b.
And so on.

As a circuit for executing an intercom call,
A microphone MC and a speaker SP connected to the call control circuit 10 via the amplifiers 11 and 11a are provided.
Also provided is a modulation circuit 13 for modulating the audio signal of the audio input from C and transmitting it to the intercom 3 with camera, and a demodulation circuit 14 for demodulating the audio signal modulated and transmitted from the intercom 3 with camera. doing. Of these, the call control circuit 10 eliminates the need to pick up the handset, and uses a microphone MC and a speaker SP fixedly provided at an appropriate position such as the front surface of the intercom 1 with a monitor television. The control is performed to enable hands-free intercom communication.

In addition to the above, a call detection circuit 15 for detecting a predetermined call signal output by operating the call button 31 of the door phone with camera 3, and the call detection circuit 15 detects the call signal. An amplifier 1 for the speaker SP so that a chime sound is output from the speaker SP at times.
There is also provided a calling circuit 17 for inputting a signal to 1a, a constant current circuit 16 for supplying a constant current to the communication line L side, and the like. Of these, the call detection circuit 15 and the call circuit 17 can operate independently of the call control circuit 10, and when a call signal is received from the intercom with camera 3, the call control circuit 10 is kept off. Even if there is, a predetermined chime sound can be output from the speaker SP.

Among the above, each circuit such as the call control circuit 10 and the monitor television 20 is connected to the CPU 24, and the driving of these units is controlled by the CPU 24.
The CPU 24 includes a monitor button 21 and a call button 2
2, and a call indicator light 23 provided at the surface of the call button 22 or at a peripheral position thereof. The call indicator light 23 is provided so as to light or flash only when the call control circuit 10 is in the operation ON state.

Further, the CPU 24 is specifically configured to perform the following control. That is, CPU2
4, when the monitor button 21 and the call button 22 are operated,
In principle, control is performed such that the on / off of the monitor television 20 and the on / off of the call control circuit 10 are individually performed. However, in relation to the monitor button 21, if the monitor button 21 is operated when both the call control circuit 10 and the monitor television 20 are off, the call control circuit 1
In this case, the communication control circuit 10 is controlled so that the microphone MC does not operate. The call control circuit 10 is configured to control so as to execute only the reproduction and output processing of the audio signal transmitted from the camera intercom 3.

In connection with the call button 22, the CPU 24 operates both the call control circuit 10 and the monitor television 20 when the call button 22 is operated when both of them are on. Control to turn off at the same time. Conversely, when the talk button 22 is operated when both the monitor television 20 and the call control circuit 10 are off, the control is performed so that both of them are turned on at the same time. Note that if the talk button 22 is operated while either the call control circuit 10 or the monitor television 20 is on and the other is off, the monitor television 20 maintains the current state of on or off. It is configured to control so that only the call control circuit 10 is independently turned off or on while being kept.

Interphone 1 with monitor television having the above configuration
When the visitor operates the call button 31 of the camera-equipped intercom 3 when both the call control circuit 10 and the monitor television 20 are off, a predetermined call signal is detected by the call detection circuit 15 and the call is detected. A predetermined signal is input from the circuit 17 to the speaker amplifier 11a.
Then, a chime sound such as “ping-pong” is output from the speaker SP as a ringing sound. In this case, a voice signal of the visitor may be transmitted from the camera door phone 3 simultaneously with the chime sound. However, if the call button 22 is not operated, the call control circuit 10 remains off. The voice of the visitor is not reproduced and output from the speaker SP. Therefore, there is no problem that the voice of the visitor is simultaneously output from the speaker SP simultaneously with the generation of the chime sound due to the call from the camera doorphone 3, and only the chime sound can be clearly generated.

FIG. 3 is a time chart of the above-described operation. When the speaker sound of "ping-pong" in FIG. 3B is output, the call control circuit 1 as shown in FIG.
Since 0 is not driven, the door phone sound "hello" in FIG. 11E is not output from the speaker SP.

Next, after the call is made, when the resident operates the call button 22 to execute the intercom call, both the call control circuit 10 and the monitor television 20 are turned on. Therefore, it is possible to immediately display the visitor's image on the display screen 20a of the monitor TV 20 without separately operating the monitor button 21, and then appropriately perform a hands-free intercom call using the microphone MC and the speaker SP. Becomes When ending the intercom call, only the call button 22 may be operated alone, whereby both the call control circuit 10 and the monitor television 20 are turned off at the same time, and the switch operation is facilitated. This also allows the monitor TV 2
Forgetting to turn off either 0 or the call control circuit 10 is also eliminated. The intercom call is continuously executed, and the
To turn off only the monitor button 21, the monitor button 21 may be operated.

Further, in the present invention, differently from the above, the monitor television 20 may be automatically turned on in response to a call from the camera intercom 3. In this case, after confirming the visitor on the monitor television 20, when the call button 22 is turned on as shown by an arrow A in FIG.
When 0 is turned on, the call indicator light 23 is turned on, and an intercom call can be performed. When the call button 22 is operated again to terminate the intercom call (arrow B), both the call control circuit 10 and the monitor television 20 are turned off.

Further, this type of intercom 1 with a monitor television may be used for checking the outdoor situation other than the interphone call. In this case, both the monitor television 20 and the call control circuit 10 are turned off. In this state, the monitor button 21 may be operated. When such an operation is performed, the monitor television 20 is turned on, so that the image picked up by the camera-equipped door phone 3 can be monitored, and the call control circuit 10 is turned on while the microphone MC is kept off. The sound input to the microphone (not shown) of the door phone with camera 3 is reproduced and output from the speaker SP. Therefore, it is possible to confirm the outdoor video and audio without causing a problem that the conversation voice indoors is output from the speaker (not shown) of the camera-equipped door phone 3.

FIG. 5 is a time chart of the above operation. When the monitor button 21 is turned on in FIG. 5A, as shown in FIG. 5B and FIG. The output is turned on, but the microphone MC is kept off.

[0022]

As will be understood from the above description, according to any one of the first to third aspects of the present invention, it is easy to determine whether or not an intercom call is being made by looking at the call indicator. A monitor that can be checked and is easy to use
In addition to providing an intercom with a video receiver , a single call button can be operated to connect both the monitor TV and the call control means.
Since it can be turned off sometimes , its switch operation becomes easy,
In addition, there is an advantage that it is possible to more reliably prevent a problem that only the monitor television is turned off and the user forgets to turn off the call control means.

According to the fourth aspect of the present invention, one
Just operate one call button to control the monitor TV and call
Turn on both of the means at the same time
Switch operation becomes easy,
A good intercom with monitor television can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a hardware configuration of an intercom with a monitor television according to the present invention.

FIG. 2 is a front view showing an example of the appearance of the intercom with a monitor television according to the present invention.

FIG. 3 is a time chart showing an example of an operation state of the intercom with a monitor television according to the present invention.

FIG. 4 is a time chart showing another example of the operation state of the intercom with a monitor television according to the present invention.

FIG. 5 is a time chart showing another example of the operation state of the intercom with a monitor television according to the present invention.

[Explanation of symbols]

 1 intercom with monitor TV 3 doorphone with camera 10 call control circuit 11, 11a amplifier 12 balanced / unbalanced matching circuit 13 modulation circuit 14 demodulation circuit 15 call detection circuit 17 call circuit 20 monitor TV 20a display screen 20b screen control unit 20c video buffer Demultiplexing circuit 21 Monitor button 22 Call button 23 Call indicator light 24 CPU 30 Camera for imaging 31 Call button

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiro Tabushi, 1048 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. inventor Takeshi Kuno Osaka Prefecture Kadoma Oaza Kadoma 1048 address Matsushita Electric Works Co., Ltd. in the (72) inventor etc. Osaka Prefecture Kadoma Oaza Kadoma 1048 address Matsushita Electric Works in Ikeda (58) investigated the field (Int.Cl. ^7, (DB name) H04M 9/00-9/10 H04M 1/02-1/23 H04N 5/64 H04N 7/18

Claims (4)

(57) [Claims] 1. A microphone and a speaker, and a microphone
Transmit the audio signal of the input sound to the door phone with camera,
Outdoor sound transmitted from the door phone with camera
-Hands-free intercom calling system to output from
And call control means for the control, and monitor television for imaging the image by reproducing the video signal transmitted from the door phone with the camera, monitor television that includes a call button for the interphone call on or off An intercom with an interphone, wherein the intercom communication
It is equipped with a call indicator light to notify the user when the
Automatically turn on the Levi and then operate the call button
Starts the intercom call control
At the same time, the monitor TV and the call control means are both turned on and
When the call button is operated during the telephone call state , the monitor TV is turned off together with the call control means.
An interphone with a monitor television, wherein the interphone is configured to be switched over. 2. A microphone and a speaker, and input from the microphone.
Transmit the audio signal of the input sound to the door phone with camera,
Outdoor sound transmitted from the door phone with camera
-Hands-free intercom calling system to output from
Call control means for controlling the
Playing the incoming video signal and projecting the video
Monitor TV and for turning on / off this monitor TV
Monitor button for turning on / off the intercom call
An intercom with monitor TV equipped with a call button
hand, When the call control means is on, the interphone call
Call indicator to notify you when you are in control
With Monitor calls when there is a call from the camera door phone
Automatically turn on the Levi and then operate the call button
Starts the intercom call control
Along with The monitor TV and the call control means are both turned on and
The call button is operated when the
Monitor is turned on with the call control
Mode that is configured to switch
Intercom with Nita TV. 3. A microphone and a speaker, and input from the microphone.
Transmit the audio signal of the input sound to the door phone with camera,
Outdoor sound transmitted from the door phone with camera
-Hands-free intercom call to output from
Communication control means for controlling the state of the
Playback of the video signal transmitted from the
Monitor and the monitor on / off
Monitor button and on / off of the intercom call
Intercom with a monitor TV provided with a call button for
What When the call control means is on, the interphone call
Call indicator to notify you when you are in control
With When the call button is operated while the monitor TV is on
Call control while keeping the monitor TV on
Means start intercom call control; The monitor TV and the call control means are both turned on and
The call button is operated when the
Monitor is turned on with the call control
Mode that is configured to switch
Intercom with Nita TV. 4. The system according to claim 1, wherein said monitor television and said call control means are both
When the call button is operated in the off state, the monitor
The TV is switched on with the call control
Is configured to initiate intercom call control.
Claim 1 to Claim 3
An intercom with a monitor television described in the description.