JP2002044651A - Video interphone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video interphone system which displays the prescribed images that are not limited in number and kind on a master video interphone and an auxiliary master television interphone respectively without using a character generator(CG). SOLUTION: A master video interphone 1 is equipped with an image memory in which various images are previously stored, and when the master video interphone 1 receives call signals from an external apparatus such as a slave door phone D with a camera, the master video interphone 1 extracts the prescribed images from the image memory to display and sends them to an auxiliary master video interphone 3 to be displayed on it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a television intercom system constituted by combining at least a door intercom slave unit with a camera, a television intercom master unit, and a television interphone sub master unit.

[0002]

2. Description of the Related Art In recent years, in a television intercom system widely used in two-family homes and the like, an intercom slave unit with a camera is operated, and a call button connected to a TV intercom master unit or a TV interphone sub master unit is provided. When operated or when a human body detection sensor at the entrance or the like detects a person, the TV intercom master unit and the TV intercom sub master unit use a built-in character generator (hereinafter referred to as CG) to generate a predetermined image. Created and displayed.

FIG. 5 shows the configuration of a main part of a television intercom master unit used in this system. The television intercom master unit 100 has a CPU 1 for controlling the following units.
10 and R for creating an image by CG described later.
An OM 120, a CG 130 for creating an image instructed by the CPU 110 and superimposing the image on a video signal, a video display device 140 for displaying an input video signal, and a video display device 140 for demodulating the input video signal. A video demodulation circuit 150 that outputs the video signal to a slave unit with a camera, a power supply / multiplexing circuit 160 that supplies power to a door unit with a camera and multiplexes and transmits a power supply, a video signal, and an audio signal, and a state of the door unit with a camera And a camera control I / F 170 for detecting, for example, a call from an intercom slave unit with a camera.
It has a microphone MI and a speaker SP, and has a communication circuit 180 for making a call with a doorphone slave unit with a camera and a sub-base unit of a TV interphone, and a power supply necessary for the operation of the main unit 100. Power supply circuit 1
90, an operation unit 200 including various operation buttons, an external input I / F 210 that receives various signals such as detection signals from a human body detection sensor, a call button, and the like, and converts the signals into a signal form that can be handled by the CPU 110; Secondary master unit 300
Multiplexes or separates a control signal, a video signal, and an audio signal transmitted between a control signal transmission / reception circuit 400 for transmitting a control signal used for mutual control between the television interphone and the secondary master unit 300. Indoor transmission multiplexing circuit 23
0.

FIG. 6 shows a main configuration of a television intercom sub-master unit used in this system. The television intercom sub-master unit 300 includes a CPU 310 for controlling the following units, and a CG described later. , A CG 330 for creating an image instructed by the CPU 310 and superimposing it on a video signal, and a video display device 34 for displaying an input video signal
0 and demodulates the input video signal,
0, a video demodulation circuit 350 for outputting to 0, a microphone MI, and a speaker SP, a communication circuit 360 for making a call between the camera-equipped door phone handset and the TV intercom master unit 100, and the TV interphone sub-master. A power supply circuit 370 for supplying power necessary for the operation of the apparatus 300, an operation unit 380 including various operation buttons, and various signals such as detection signals from a human body detection sensor and a call button.
External input I / F for converting to a signal form that can be handled by PU 310
A control signal transmitting / receiving circuit 400 for transmitting a control signal used for mutual control between 390 and TV intercom master device 100, and a control signal, a video signal, and an audio signal transmitted between TV intercom master device 100 And an indoor transmission multiplexing circuit 410 for multiplexing or separating signals.

[0005]

By the way, in the above-mentioned conventional TV intercom system, each of the TV intercom master unit and the TV interphone sub master unit creates and displays a predetermined image by CG as described above. I have. That is, as shown in FIG. 7, the ROM stores images divided into cells C, and the CG stores the images in the cells.
Based on the instruction from the PU, the necessary cells C are taken out of the ROM and a predetermined image is created. Therefore, in order to create a plurality of images or a complicated image, the number of cells C becomes large.
In such a case, it is necessary to take out an image from the ROM and create a necessary image, so that the amount of memory used in the CG increases, and the number and types of images to be created are limited.

The present invention has been made in view of the above circumstances, and displays a predetermined image on a television intercom master unit or a television interphone master unit without using a CG, and adjusts the number and type of the images. It aims to provide an unlimited television intercom system.

[0007]

In order to achieve the above object, in the television intercom system according to the first aspect of the present invention, the television intercom master unit has an image memory in which various images are stored in advance. When a predetermined calling signal is received from the intercom with camera, a predetermined image is extracted from the image memory, and the extracted predetermined image is displayed and transmitted to the television intercom secondary master unit for display.

In the television intercom system according to the second aspect, the main unit of the television intercom is connected to a call button. When a predetermined call signal is received from the call button, a predetermined image is extracted from the image memory and extracted. In addition to displaying the predetermined image, the image is transmitted to and displayed on the sub-base unit of the television intercom.

In the TV intercom system according to the third aspect, the TV intercom master unit is connected to a human body detection sensor, and when a predetermined detection signal is received from the human body detection sensor, a predetermined image is drawn from the image memory. Then, the extracted predetermined image is displayed and transmitted to the television intercom secondary master unit for display.

[0010] In the television intercom system according to the fourth aspect, the television intercom master unit is connected to a wireless receiver, and the wireless receiver receives a predetermined control signal when receiving a predetermined call signal from the wireless transmitter. The signal is transmitted to the main unit of the television intercom, and the main unit of the television intercom receiving the signal extracts a predetermined image from the image memory, displays the extracted predetermined image, and transmits the predetermined image to the sub-main unit of the television interphone for display.

In the television intercom system according to the present invention, when the television intercom master unit receives a predetermined control signal from the television intercom sub master unit, the television intercom master unit extracts a predetermined image from the image memory and displays the extracted predetermined image. At the same time, the information is transmitted to the television intercom secondary master unit for display.

In the television intercom system according to the sixth aspect, the television intercom secondary master unit is connected to a call button, and when receiving a predetermined call signal from the call button, transmits a control signal to the television interphone master unit. Send.

[0013] In the television intercom system according to the seventh aspect, the television intercom secondary master unit is connected to a human body detection sensor, and upon receiving a predetermined detection signal from the human body detection sensor, transmits a control signal to the television interphone master unit. To the machine.

In the television intercom system according to the present invention, various images stored in the image memory can be arbitrarily recorded or arbitrarily changed by inputting an image signal from the outside. TV intercom system.

In the TV intercom system according to the ninth aspect, the main unit of the TV intercom is provided with a visitor recording function at the time of absence or at the time of a telephone call. The recorded image is recorded in the image memory.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an example of the configuration of the system of the present invention. In this system, a sub master unit 3 and a wireless receiver 6 are connected to a TV intercom master unit 1 to which a doorphone slave unit with camera D is connected.
The call button 5 and the human body detection sensor S are connected to the TV intercom master 1, and the call button 5 and the human body sensor S are connected to the TV interphone sub-master 3. Reference numeral 7 denotes a wireless transmitter, and when operated, a predetermined call signal is transmitted to the wireless receiver 6 in the form of a radio signal.

The characteristic operation of the system of the present invention having such a configuration will be described below. That is, when the intercom slave unit D is operated, a predetermined call signal is transmitted from the intercom slave unit D, and the television intercom master unit 1 having received the call signal extracts a predetermined image from an image memory described later and displays it. At the same time, the taken out image is transmitted to the television intercom secondary master unit 3. Then, the television intercom secondary master unit 3 receives and displays an image from the TV intercom master unit 1.

The call button 5 connected to the TV intercom master unit 1 is operated, or the TV intercom master unit 1 is operated.
When the human body detection sensor S connected to the main body detects a human body, the television intercom base unit 1 receives a predetermined call signal and a detection signal. At this time, a predetermined image is extracted from an image memory described later and displayed, and the extracted image is transmitted to the television intercom secondary master unit 3.
Then, the television intercom secondary master unit 3 receives and displays an image from the TV intercom master unit 1.

When wireless receiver 6 receives a predetermined call signal from wireless transmitter 7, it transmits a predetermined control signal to television intercom master unit 1. Then, the television intercom master device 1 retrieves and displays a predetermined image from an image memory described later, and sends the retrieved image to the television interphone sub-master device 3. Then, the television intercom secondary master unit 3 receives and displays an image from the TV intercom master unit 1.

When the call button 5 connected to the TV interphone sub-base unit 3 is operated or the human body detection sensor S connected to the TV interphone sub-base unit 3 detects a human body, the TV interphone sub-base unit 3 Receives a predetermined call signal or detection signal. At this time, the TV intercom sub master unit 3 sends a predetermined control signal to the TV interphone master unit 1. Then, the television intercom master device 1 receives the control signal, retrieves and displays a necessary image from an image memory described later, and sends the retrieved image to the television interphone sub-master device 3. Then, the television intercom secondary master unit 3 receives and displays an image from the TV intercom master unit 1.

In order to enable such an operation, each of the TV intercom master unit 1 and the TV intercom sub master unit 2 has the following internal configuration. That is, as shown in FIG. 2, the TV intercom master unit 1 demodulates the input video signal, the CPU 11 controlling the following units, the video display device 14 for displaying the input video signal, A video demodulation circuit 15 for outputting to the video display device 14, a power supply / multiplexing circuit 16 for supplying power to a doorphone handset D with a camera and multiplexing and transmitting a power supply, a video signal, and an audio signal; It has a camera control I / F 17 for monitoring the state of the doorphone slave device D and detecting a call from the camera doorphone slave device D, a microphone MI and a speaker SP, and has a camera doorphone slave device D and a TV interphone. A call circuit 18 for making a call with the sub master 3, and the TV intercom master 1
A power supply circuit 19 for supplying power required for the
An operation unit 20 including various operation buttons, and signals such as detection signals from the human body detection sensor S and the call button 5 are received.
External input I / F 21 for converting into a signal form that can be handled by
Control signal transmission / reception circuit 22 for transmitting a control signal used for mutual control between the communication device and the television intercom secondary master device 3
And transmitted between the television intercom secondary master unit 3,
An indoor transmission multiplexing circuit 23 for multiplexing or separating control signals, video signals, and audio signals, an image memory 24 for storing various images, and an image for storing images in the image memory 24 and extracting images from the image memory 24 A processing circuit 25, a video signal transmission circuit 26 for converting the video signal into a form that can be transmitted to the television intercom sub master unit 3 and transmitting the video signal, and a video intercom slave unit D And a video signal selection circuit 27 for selecting a video signal from the video memory and an image from the image memory.

In the image memory 24, as shown in FIG.
Various images are stored in units of screens, so that many images or complicated images can be stored. Although such an image is stored in advance as a default, the image can be stored in the image memory 24 by inputting an arbitrary image created by an external device to the image processing circuit 25 as an image signal. Can be done. As a result, an arbitrary image is input from an external device, and
4 and can be rewritten.

Also, this TV intercom master unit 1
It has a function of recording the image of the visitor using the doorphone slave device D during an absence or a call with the doorphone slave device D. When this function is executed, the image of the visitor is recorded in the image memory 24. You. That is, in the image memory 24,
Both the various images described above and the visitor's video are stored.

Further, as shown in FIG. 4, the television intercom secondary master unit 3 includes a CPU 31 for controlling the following units,
Video display device 3 for displaying an input video signal
4 and demodulates the input video signal,
A video demodulation circuit 35, which outputs a video signal to a telephone, and a microphone circuit MI and a speaker SP.
And a power supply circuit 37 for supplying power necessary for the operation of the television intercom secondary master unit 3, an operation unit 38 including various operation buttons, and signals such as detection signals from a human body detection sensor and a call button. And a control signal transmitting / receiving circuit 40 for transmitting a control signal used for mutual control between the television intercom master unit 1 and an external input I / F 39 for receiving the control signal and converting it into a signal form that can be handled by the CPU 31. Indoor multiplexing circuit 4 for multiplexing or separating control signals, video signals, and audio signals transmitted between
1 is provided.

[0025]

As can be understood from the above description, in the television intercom system according to the first to fourth aspects of the present invention, the main unit of the television intercom is called from an external device such as a door phone slave unit with a camera. When a signal or the like is received, a predetermined image is extracted from the image memory, and the extracted predetermined image is displayed and transmitted to the television intercom secondary master unit for display. By displaying a predetermined image on the intercom secondary master unit, there is no limit on the number and types of the images. Further, since there is no need to provide an image memory in the TV interphone secondary master unit, this system is provided at low cost. it can.

In the television intercom system according to the present invention, the television intercom master unit receives a signal input from an external device such as a call button, and receives the signal input from an external device such as a call button. When a predetermined control signal is received from the CPU, a predetermined image is extracted from the image memory, and the extracted predetermined image is displayed and transmitted to the television intercom secondary master unit for display. The effect can be exhibited.

[0027] In the television intercom system according to the eighth aspect, various images stored in the image memory can be arbitrarily recorded or arbitrarily changed by inputting an image signal from the outside. The maintenance of the image is improved, and the user can easily replace the image with a favorite image.

[0028] In the television intercom system according to the ninth aspect, the main unit of the television intercom is provided with a visitor recording function at the time of absence or at the time of a telephone call. Since the image to be recorded is recorded in the image memory, the image memory can be used also as a visitor recording function, and the utilization efficiency of the image memory can be extended.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of the configuration of the system of the present invention.

FIG. 2 is a diagram showing an example of an internal configuration of a television intercom master unit.

FIG. 3 is a diagram for describing an image storage mode of an image memory.

FIG. 4 is a diagram showing an example of an internal configuration of a television intercom secondary master unit.

FIG. 5 is a diagram showing an internal configuration of a conventional television intercom master unit.

FIG. 6 is a diagram showing an internal configuration of a conventional television intercom secondary master unit.

FIG. 7 is a diagram for describing a problem of a conventional television intercom system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... TV intercom master unit 3 ... TV interphone sub master unit 5 ... Call button 6 ... Wireless receiver 7 ... Wireless transmitter 24 ... Image memory D ... Door phone with camera Slave S: Human body detection sensor

Claims (9)

[Claims] 1. A television intercom system comprising at least a door intercom with a camera, a main unit of a television intercom, and a sub-main unit of a television intercom, wherein the main unit of the television intercom has an image memory in which various images are stored in advance. When a predetermined call signal is received from the camera-equipped door phone handset, a predetermined image is extracted from the image memory, and the extracted predetermined image is displayed and transmitted to the television intercom secondary master unit for display. TV intercom system. 2. The television intercom master unit according to claim 1, further comprising a call button connected thereto, and, when a predetermined call signal is received from the call button, drawing a predetermined image from the image memory, A television intercom system configured to display an image and transmit and display the image to the television intercom secondary master unit. 3. The television intercom master unit according to claim 1, wherein the television intercom master unit is connected to a human body detection sensor, and when receiving a predetermined detection signal from the human body detection sensor, draws out a predetermined image from the image memory and pulls out the image. A television intercom system configured to display the predetermined image and transmit and display the predetermined image to the television intercom secondary master unit. 4. The television intercom base unit according to claim 1, wherein the television intercom master unit is connected to a wireless receiver, and the wireless receiver transmits the predetermined control signal when receiving a predetermined call signal from a wireless transmitter. A configuration in which the television intercom master transmits the predetermined image from the image memory, displays the extracted predetermined image, and transmits and displays the extracted predetermined image to the television interphone master. TV intercom system. 5. The television intercom master device according to claim 1, wherein, when receiving a predetermined control signal from the TV interphone sub-master device, the television interphone master device extracts a predetermined image from the image memory, displays the extracted predetermined image, and , A television intercom system configured to transmit to the above-mentioned television intercom secondary master unit for display. 6. The television intercom sub-base unit according to claim 5, wherein the sub-base unit of the television interphone is connected to a call button, and when receiving a predetermined call signal from the call button, transmits the control signal to the main unit of the television interphone. TV intercom system. 7. The television intercom master unit according to claim 5, wherein the television interphone master unit is connected to a human body detection sensor, and when receiving a predetermined detection signal from the human body detection sensor, transmits the control signal to the TV interphone master unit. TV intercom system configured to transmit to 8. A television interphone according to claim 1, wherein the various images stored in the image memory can be arbitrarily recorded or arbitrarily changed by inputting an image signal from outside. system. 9. The television intercom base unit according to any one of claims 1 to 8, further comprising a visitor recording function at the time of absence or at the time of a telephone call.
A television intercom system configured to record an image captured by the camera-equipped doorphone slave unit in the image memory.