KR19980038725A - Door Phone TV Receiver System - Google Patents

Abstract

The present invention relates to a TV receiver system capable of door phone control and door phone visitor, and the conventional TV receiver system is operated in an independent set, and the photographing means by the CD camera for the visitor confirmation of the door phone is provided. Although the visitor identification and control means using the TV receiver has not been made, it is not desirable.

The present invention is connected to this from the commercial power line in the house so as to improve such a conventional problem, and transmits the screen information taken by the RF transmission through the power line to the TV receiver unit 2 side and the TV receiver unit 2 The door phone unit 1 for controlling the door by the control information transmitted from the side, and the door phone unit 1 is connected to the power line to receive and record the RF signal transmitted from the door phone unit 1 to record the user key input. Accordingly, to provide a door phone TV receiver system, characterized in that the TV receiver unit 2 for transmitting the door opening control information to the door phone unit 1 is connected.

Description

Door Phone TV Receiver System

The present invention relates to a TV receiver system capable of checking the door phone visitor and controlling the door phone, which is particularly related to the door phone installed on the door side of the house, which allows the visitor photographed from the door phone to be checked on the TV receiver side. The door phone can also be controlled through a key input unit such as a remote control transmitter on the side.

The TV receiver system receives various audio / video sources from the outside and outputs them through the TV receiver. A typical form thereof is illustrated in FIG. 1.

In this case, the tuner 202 receives a regular broadcast signal from the antenna 201 and performs channel tuning. The filter 203 filters the tuner signal provided by the tuner 202, and the tuner 202. A prescaler and phase lock loop circuit 205 connected to perform automatic tuning tuning, a microcomputer 206 for controlling the prescaler and phase lock loop circuit 205, an OS 219, and the like, An audio processing circuit 213 which receives the signal provided from the remote control transmitter 208 and the audio processing circuit 213 which is connected to the output of the saw filter 203 and detects the audio signal and then provides the AV signal to the switch 212 side. And a P-F unit 213 or the like for intermediate-processing the video signal from the output of the saw filter 203 and providing the AV to the switch 212 side.

In addition, the system includes a stereo audio output unit 214 connected to the switch 212 to output stereo audio to the speaker (SP) side, a video signal processor 215 for providing a video signal to the CRT TV receiver; An external AV input terminal 210, an internal AV input terminal 211, a power supply unit 209, such as a matrix circuit 216, a vertical / horizontal output unit 217, 218, and AVSI connected to an input side of the switch 212. It consists of a configuration including the back.

In the system as described above, the microcomputer 206 receives various commands such as watching channel switching of various broadcasts and setting screen color / brightness / contrast through a key input unit including a remote controller transmitter 208, a remote controller receiver 207, and the like. Was doing.

However, in the related art, such a TV receiver system has not been utilized in connection with the door phone, so it is difficult to overcome the limitations of actively using the door phone and the TV set.

An object of the present invention can be confirmed from the TV side while performing the function of the TV receiver for the visitors such as photographed from the door phone through the power line in the house to improve the problems as described above and the door phone via the remote control on the TV side By controlling it, we can expect more active use of this TV set.

The present invention is particularly connected to the commercial power line in the house to implement the object of the above example, the door phone unit for transmitting the screen information taken by RF transmission through the power line to the TV side and controlling the door by the control information transmitted from the TV side And a TV receiver unit connected to the door phone unit by a power line to receive an RF signal transmitted from the door phone unit, to output a screen, and to transmit door opening control information to the door phone unit according to a user key input. The system is unique.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a system circuit block diagram of a typical TV receiver.

2 is a system schematic diagram of the present invention;

3 is a circuit block diagram of the embodiment of FIG.

4 is an exemplary embodiment of a power filter and an RF pass filter in FIG.

5 is an embodiment of a door phone display control processing program according to the present invention;

* Explanation of symbols for main parts of the drawings

1: door phone part 11: door phone

12 modulator 13 door phone side RF pass filter

14 door phone data pass filter 15 data detector

16: power filter 2: TV receiver

21: video output circuit 22: microcomputer

23: TV side pass filter 24: demodulator

25 carrier detector 26 key input unit

27: data modulator 28: TV side data pass filter

100: door phone display control processing program

That is, Figure 2 shows a schematic view of the door phone TV receiver system according to the present invention.

In this case, the commercial power line in the house is connected to it, and the screen information captured by the RF transmission through the power line is transmitted to the TV receiver unit 2 and the door is controlled by the control information transmitted from the TV receiver unit 2 side. The door phone unit 1, which is connected to the door phone unit 1 and a power line, outputs the RF signal transmitted from the door phone unit 1 to the TV receiving tube, and opens the door to the door phone unit 1 according to a user's key input. The TV receiver 2 for transmitting control information is connected.

Reference numeral 3 here is a door drive for opening and closing the door.

In addition, the system has shown this in more detail as shown in FIG.

Here, the door phone 11 which generates image information such as a visitor photographed from the CD camera installed in the door phone and provides a driving output to the door driver 3, and the image signal generated from the door phone 11 A modulator 12 for converting the RF signal for transmission to the power line side, a door phone side RF pass filter 13 for interfacing the signal modulated by the RF modulator 12 to the power line side, and a control transmitted from the power line side The door phone side data path filter 14 for passing information data to the door phone unit 1 side, the data detector 15 for detecting door open data from the data signal provided from the door phone side data path filter 14, and the like. It comprises a door phone unit (1).

In addition, the door phone unit 1 is provided with a power filter 16 for providing driving power to the system from the power line.

The TV receiver unit 2 further includes a TV side RF pass filter 23 for receiving an RF signal from a power line, a demodulator 24 for demodulating a video signal from the signal received therefrom, and the demodulator 24. A video output circuit 21 for outputting the demodulated video signal from the C-type signal, a carrier detector 25 for detecting a carrier from the RF signal provided by the TV side RF pass filter 23 and providing the carrier to the microcomputer 22; The microcomputer 22 converts the TV channel into the door channel when the carrier is detected from the TV side pass filter 23 through the carrier detection unit 25, and the carrier data in the system under the control of the microcomputer 22. Is detected, a tuner 29 for switching to the door channel is included.

4 shows a more specific embodiment of the power filter 16 and the RF pass filter 13 installed in the door phone unit 1 and the TV receiver unit 2.

In this case, an inductor for removing electrical noise from a power line is installed in the line. In the case of the RF pass filters 13 and 23, a capacitor and an inductor are directly connected to each other to the RF pass filters 13 and 23.

On the other hand, the system microcomputer 22 side of the TV receiver 2 is provided with a door phone display control processing program 100 as shown in FIG.

Here, the system of the TV receiver unit 2 checks whether there is carrier detection (step 101), and if there is carrier detection, checks whether the TV side is in a power-on state (step 102).

If the TV side is not in the power-on state, the power is turned on (step 104). If the TV side is in the power-on state, the receiving channel is switched to the door channel side (step 103). Output

In step 101, it is checked whether there is a door open key input (step 105), and when there is a door open key input, a series of door open control data generated by the microcomputer 22 is sent to the door phone unit 1 side. It consists of the processing of.

According to the present invention having the above configuration, as shown in FIGS. 2 to 4, the user can output a video signal such as a visitor photographed from the door phone unit 1 through the TV receiver unit 2 using the door phone TV receiver system. When the door receiver 1 is pressed by the doorbell part 1 while the TV receiver 2 is turned on, the TV receiver 2 switches the door to the door phone 1 even though there is a broadcast currently being watched. The visitor on the phone unit 1 side can be confirmed.

At this time, when the visitor presses the doorbell of the door phone unit 1, the CD camera is driven, and the photographed signal is RF-modulated through the modulator 12 to be sent to the door phone side RF pass filter 13, which causes the power line. Through the TV receiver 2 of the TV receiver 2 is transmitted through.

The carrier is detected by the carrier detector 25 from the RF image signal passing through the TV side pass filter 23, and when the carrier is detected, the detection information is sent to the microcomputer 22.

In response to the detection signal of the carrier detector 25 of the microcomputer 22, the microcomputer 22 converts the tuno 29 from the TV broadcasting channel to the door channel, and the visitor image demodulated by the demodulator 24 through the channel. When the signal is provided to the video output circuit 21, the visitor's screen through the TV receiver is displayed.

After the user confirms the visitor, when the user presses the door open key through the key input unit 26 of the TV receiver 2, the microcomputer 22 recognizes this and sends the door open control data to the data modulator 27. The data modulator 27 transmits a predetermined signal to the power line through the TV-side data path filter 28 after performing signal modulation including control information.

The door open control data transmitted from the TV receiver unit 2 is received through the door phone side data path filter 14 of the door phone unit 1 and the control information signal passed therefrom is decoded by the data detector unit 15. To provide control information to the door phone (11).

The door phone 11 drives the door driver 3 according to the control information from the TV receiver 2 to open the door.

Meanwhile, the above operation is performed by the microcomputer 22 of the TV receiver 2 together with the door phone display control processing program 100 as shown in FIG. 3, which is a door in the system of the TV receiver 2. It is checked whether there is carrier detection transmitted from the phone unit 1, and if there is carrier detection, it is checked whether the TV is in the power-on state (steps 101 and 102).

If the TV is in the power-on state, the receiving channel can be converted to the door channel side and the visitor can be confirmed through the TV receiving tube. If there is no carrier detection, the user opens the door open key after checking whether the user has the door open key input. If there is an input, the door open control data generated by the microcomputer 22 is sent to the door phone unit 1 (steps 103 to 106).

Therefore, the door phone unit 1 is to perform the door opening operation according to the control information sent from the TV receiver unit (2).

The present invention can secure a new use of the TV receiver system because the TV receiver system can control the door phone through the power line and display the visitor video signal photographed from the door phone side through the TV receiver.

Claims (1)

It is connected to the commercial power line in the house and transmits the screen information photographed by the RF transmission through the power line to the TV receiver unit 2 and controls the door by the control information transmitted from the TV receiver unit 2 side. The door phone unit 1 and the door phone unit 1 are connected to the power line to receive and record the RF signal transmitted from the door phone unit 1 and record the door opening control information to the door phone unit 1 according to the user's key input. Door phone TV receiver system, characterized in that the TV receiver unit 2 is connected to the transmission