KR20000034349A - Apparatus for controlling channel of sub televisions by main television - Google Patents

Abstract

PURPOSE: An apparatus for controlling channel of sub televisions by main television is provided to control the admitted channel on the sub television by the main television. CONSTITUTION: An apparatus for controlling channel of sub televisions by main television includes a key input, an admitted channel storage(95), a switch(60), a channel data transferrer(45), and a warning message storage(110). The key input inputs identifications for each sub televisions and admitted channels. The admitted channel storage stores the identifications for each sub televisions and admitted channels. The switch selects plurality of sub televisions and a main television. The channel data transferrer outputs the channel data to the main television. The warning message storage detects the channel data from the plurality of sub televisions and outputs a warning message on each of the sub television s.

Description

Multiple Sub-TV Channel Control by Main Television

According to the present invention, when a plurality of televisions are connected to a main television and a sub television, a plurality of sub television channel control apparatuses of a main television set and controlled by a single main television to set viewing permission channels of the plurality of sub televisions ( The apparatus for controling sub-televisions' channel by main-television).

In general, when a plurality of televisions are connected to each other, a main television controlling each television and a plurality of sub-TVs controlled by the main television are included.

1 is a system block diagram in which a plurality of general televisions are connected.

Referring to FIG. 1, in general, when a plurality of televisions are connected, one main television and a plurality of sub-TVs are included, and the main television has a high frequency of a channel desired by a user among high frequency signals received through the antenna 10. A tuner circuit section 15 for selecting a signal and converting it into an intermediate frequency that is easy to amplify, and a size suitable for displaying the intermediate frequency applied from the tuner circuit section 15 on the CRT 50 by being connected to the tuner circuit section 15. An intermediate frequency amplifier 20 which is amplified by the intermediate frequency amplifier 20, an image signal processor 25 which detects and processes a video signal from the intermediate frequency amplifier 20, and the intermediate The audio signal processor 30 detects and processes the audio signal from the frequency amplifier 20, and the video signal processor 25 is connected to the audio signal processor 25. The final three primary colors red (R), blue (G), and the like in the demodulation circuit are amplified by amplifying the luminance signal so that the displayed video signal can be displayed on the CRT (50) and a band amplifying circuit for amplifying the image signal and the carrier color signal. It is connected to the video output unit 35 and the audio signal processing unit 30 to generate green (B) to be output to the CRT (50), the audio signal applied from the audio signal processing unit 30 to the speaker Red (R) and blue (G) connected to the audio output unit 40 and amplified by the audio signal for output to the 65 and the video output unit 35, which is converted into a video signal suitable for display on the screen. And a speaker (55) connected to the CRT (50) for outputting three primary colors of green (B) and the voice output unit (40) to output the voice signal output from the voice output unit (40) to the outside. And a remote controller 85 for inputting a control command for controlling a sub television desired by the user. A switching port 60 for switching the sub-TV selected from the remote controller 85 and the main television under the control of the ECOM 45, and controlling all the above functions, in particular the sub-TV selected from the remote controller 85; A microcomputer 45 for controlling the switching port 60 for switching the main television, and TV1 65, TV2 70, and TV3 75, which are sub-TVs for receiving data transmitted through the switching port 60; , TV4 (80).

Referring to the operation of the above configuration is as follows.

The high frequency signal applied through the antenna 10 of the main television is applied to the tuner circuit unit 15, and the tuner circuit unit 15 intermediates the high frequency signal corresponding to the selected channel among the high frequency signals applied through the antenna 10. The frequency amplification unit 20 converts the intermediate frequency to be easily amplified to generate a composite video signal. The composite video signal is detected as a video signal and an audio signal through the video signal processor 25 and the audio signal processor 30. The image signal output through the image signal processor 25 includes an image amplifier circuit for amplifying the luminance signal after detecting the luminance, a band amplifier circuit for selecting and amplifying a carrier color signal from the image signal, and a carrier color signal applied from the band amplifier circuit. The CRT (50) is an image signal suitable for output to the screen by the action of each of the circuits in the image output unit (35), which is composed of a demodulation circuit unit that combines the luminance signals applied from the image amplification circuit to generate the color signal required for display on the screen. And the switching port 60. The voice signal output through the voice signal processor 30 is amplified to a size suitable for output from the voice output unit 40 and output to the speaker 55 and the switching port 60. In addition, the user controls the desired sub-television among the TV 1 (65), TV 2 (70), TV 3 (75), TV 4 (80), which are sub-TVs connected through the switching port (60), using the remote controller (85). If desired, a control command is applied to the microcomputer 45 by operating a button key of the remote controller 85.

When the user wants to output the broadcast of the current main television to the TV1 65 among the sub-TVs TV1 65, TV2 70, TV3 75, and TV4 80 by using the remote controller 85, TV1 65 is selected. When the TV1 65 is selected, the microcomputer 45 receives the selection signal to control the switching port 60 to connect the TV1 65 to the main television. When the main television and the TV1 65 are connected, the video and audio signals output from the video output unit 35 and the audio output unit 40 are transmitted to the TV1 65 through the switching port 60. The broadcast of the main television is output. By this, the user can output the video signal and the audio signal of the main television to the desired television among the sub televisions. In addition, the microcomputer 45 may perform channel setting and screen adjustment of the sub-TV through the switching port 60.

The system for controlling a plurality of sub-TVs in the main television as described above is a unidirectional control system, in which the main television is unilaterally controlled so that the television broadcast and the like can be displayed. However, in an interactive system that enables the television to be turned on and off by the sub television side, it is necessary to have a parental control function of the sub television in the main television.

The invention having a password function as a control method of a general television or the like is disclosed in Japanese Patent Laid-Open Nos. 97-76261 and 97-32076.

The invention disclosed in Japanese Patent Laid-Open No. 97-76261 is an invention in which a computer is normally operated only by adding a password function to a microcomputer of a monitor in a computer so that the password of the PC main body and the password of the monitor match.

In addition, the invention disclosed in Korean Patent Laid-Open Publication No. 97-32076 is an invention configured to allow a viewer to limit output as necessary by giving an output restriction function to specific information among teletext information received by a television.

As described above, in a system in which a plurality of televisions are connected to each other, the user of each sub-television allows the user to unilaterally watch the television on the main television so that the user can watch the television only by performing a switching operation on the sub-TV. There is a problem in that there must always be a control operation of the main television.

In addition, the prior art with the parental control function is to provide a password function for the parental control function of the PC or the television itself, there is a problem that can not implement the parental control function for a plurality of sub-units in the main unit.

The present invention has been made to solve the above problems, and an object of the present invention is that each sub-TV connected to the main television can watch the television without the switching action of the main television, and the viewing permission channel of the sub-TV is converted into the main television. It is to provide a plurality of sub-TV channel control apparatus by a main television that can be controlled.

As a technical idea for achieving the object of the present invention, means for inputting identification IDs and viewing permission channels of a plurality of sub-TVs, means for storing IDs and viewing permission channels for identifying a plurality of sub-TVs, Means for detecting channel data transmitted from the sub-TVs of the sub-TV and outputting a prohibited message if it does not match the set viewing permission channel, means for selecting and switching the main television and the plurality of sub-TVs, and transmitting the channel data to the main television. An invention consisting of a transmission means of a subtelevision is presented.

1 is a system block diagram of a typical multiple television is connected

FIG. 2 is a block diagram for explaining a plurality of sub-TV channel control apparatuses according to the present invention.

3 is a block diagram of a sub television of FIG.

<Description of the code | symbol about the principal part of drawing>

10: antenna 10a: first antenna

15: tuner circuit portion 15a: first tuner circuit portion

20: intermediate frequency amplifier 20a: first intermediate frequency amplifier

25: Image signal processor 25a: First image signal processor

30: voice signal processor 30a: first voice signal processor

35: image output unit 35a: first image output unit

40: audio output unit 40a: first audio output unit

45: microcomputer 45a: first microcomputer

50: CRT 50a: First CRT

55 speaker 55a first speaker

60: switching port 65: TV1

70: TV2 75: TV3

80: TV4 85: Remote Controller

90: ID storage unit 95: setting channel storage unit

100: channel detector 105: comparator

110: warning image storage unit 115: transceiver

Hereinafter, with reference to the accompanying drawings with respect to the configuration and operation of the embodiment of the present invention will be described.

2 is a block diagram for explaining a plurality of sub-TV channel control apparatuses according to the present invention main television.

FIG. 3 is a block diagram of the sub television of FIG. 2.

Referring to FIG. 2 and FIG. 3, the present invention includes a plurality of televisions comprising one main television and a plurality of sub televisions, and the main television may include a channel desired by a user among high frequency signals received through the antenna 10. A tuner circuit section 15 for selecting a high frequency signal and converting it into an intermediate frequency that is easy to amplify, and connected to the tuner circuit section 15 so as to display an intermediate frequency applied from the tuner circuit section 15 on the CRT 50. An intermediate frequency amplifier 20 for amplifying the amplitude, an image signal processor 25 connected to the intermediate frequency amplifier 20, and detecting and processing a video signal from the intermediate frequency amplifier 20; An audio signal processor 30 for detecting and processing a voice signal from the intermediate frequency amplifier 20 and a video signal processor 25 connected to the video signal processor 25 and applied to the video signal processor 25. The final three primary colors (R), blue (G), and green (A) in the demodulation circuit are amplified by the amplification of the luminance signal so that the signal can be displayed on the CRT 50, and the image amplification circuit and the band amplification circuit. B) is connected to the video output unit 35 and the audio signal processing unit 30 to generate and output to the CRT 50, the speaker 65 to receive the audio signal applied from the audio signal processing unit 30 (R), blue (G), green, which are connected to the video output unit (35) and a video signal suitable for display on the screen. A CRT 50 for outputting the three primary color signals of (B), a speaker 55 connected to the audio output unit 40, and outputting an audio signal output from the audio output unit 40 to the outside; And a remote controller 85 for inputting a viewing permission channel of each sub television, and identifying each sub television. The ID storage unit 90 stores the individual ID of each sub-TV, and the ID storage unit 90 is connected to the ID storage unit 90 to store IDs of the viewing permission channels of the sub-TVs input through the remote controller 85. The sub channel and main television selected by the remote controller 85 are switched under the control of the setting channel storage unit 95 and the microcomputer 45 stored in correspondence with each ID stored in the unit 90. Switching port 60 for transmitting the video signal and audio signal output from the video output unit 35 and the audio output unit 40 to the selected sub-TV, and the channel for detecting the channel data currently being transmitted from each sub-TV The detector 100 compares the viewing channel of each sub-TV detected by the channel detector 100 with the viewing permission channel of each sub-TV stored in the setting channel storage 95. Warning image storage unit 110 for storing a warning image message to prohibit viewing when the comparator 105 for determining whether a match is applied to the microcomputer 45 and the result of comparison in the comparator 105 does not match each other. And control all of the above functions, and in particular, if the channel of each sub-TV set by the user and the current viewing channel do not match according to the result determined by the comparator 105, the warning image storage unit 110 is controlled. And a microcomputer 45 for displaying a stored prohibition message as an image, and the sub-TV includes TV1 65 and TV2 70 for receiving control data, video signals, and audio signals transmitted through the switching port 60. ), TV3 (75), TV4 (80).

In addition, TV1 65, TV2 70, TV3 75, and TV4 80, which are the sub-televisions, have the same configuration, and TV1 65 is described by way of example. A first tuner circuit portion 15 for converting a high frequency signal of a channel desired by a user from the high frequency signal received through 10 into an intermediate frequency which is easy to amplify, and connected to the first tuner circuit portion 15; A first intermediate frequency amplifier 20 for amplifying an intermediate frequency applied by the first tuner circuit unit 15 to a size suitable for display on the CRT 50, and connected to the first intermediate frequency amplifier 20, A first video signal processor 25 for detecting and processing a video signal from the first intermediate frequency amplifier 20, and a first audio signal for detecting and processing a voice signal from the first intermediate frequency amplifier 20; A first video signal processor connected to the processor 30 and the first video signal processor 25 The final three primary colors in the demodulation circuit (R) are amplified by amplifying the luminance signal so that the image signal applied at (25) can be displayed on the first CRT (50) and amplifying the image signal and the carrier color signal. ) Is connected to the first video signal output unit 35 and the first audio signal processor 30 to generate blue (G) and green (B) to be output to the first CRT (50). A first audio output unit 40 for amplifying a voice signal applied from the first audio signal processing unit 30 to a first audio signal for outputting to the first speaker 65, and the first video output unit 35; The first CRT 50 and the first audio output unit 40 outputting color signals of three primary colors of red (R), blue (G), and green (B) that are converted into a video signal suitable for display on a screen. The first speaker 55 for outputting the audio signal output from the first audio output unit 40 to the outside, and the switching port 60 of the main television. A transceiver 115 for receiving the transmitted data and transmitting the viewing channel data of the TV1 65 to the main television, and controlling all functions of the TV1 65, and in particular, selecting the channel selected by the first tuner circuit 15a. The first microcomputer 45a transmits to the main television via the transceiver 115.

Referring to the operation of the present invention made of the above configuration as follows.

The high frequency signal applied through the antenna 10 of the main television is applied to the tuner circuit unit 15, and the tuner circuit unit 15 intermediates the high frequency signal corresponding to the selected channel among the high frequency signals applied through the antenna 10. The frequency amplification unit 20 converts the intermediate frequency to be easily amplified to generate a composite video signal. The composite video signal is detected as a video signal and an audio signal through the video signal processor 25 and the audio signal processor 30. The image signal output through the image signal processor 25 includes an image amplifier circuit for amplifying the luminance signal after detecting the luminance, a band amplifier circuit for selecting and amplifying a carrier color signal from the image signal, and a carrier color signal applied from the band amplifier circuit. The CRT (50) is an image signal suitable for output to the screen by the action of each of the circuits in the image output unit (35), which is composed of a demodulation circuit unit that combines the luminance signals applied from the image amplification circuit to generate the color signal required for display on the screen. And the switching port 60. The voice signal output through the voice signal processor 30 is amplified to a size suitable for output from the voice output unit 40 and output to the speaker 55 and the switching port 60. In addition, in order for a user to identify each sub television, TV1 65, TV2 70, TV3 75, and TV4 80, which are sub-TVs connected through the switching port 60 using a remote controller 85, are used. If the individual ID is input to the microcomputer 45, the microcomputer 45 stores the individual ID in the ID storage unit 90. When the individual ID of each sub-television is determined by the above, a user sets the viewing permission channel of each individual ID. The viewing permission channel set by the above is stored in the setting channel storage unit 95 corresponding to each individual ID.

In the above, the user sets the individual ID of the TV1 65 among the sub-TVs TV1 65, TV2 70, TV3 75, and TV4 80 by using the remote controller 85, and views the TV. When the allowed channel is selected as '1', '2', or '3', the individual ID is stored in the ID storage unit 90 and the viewing permission channel is stored in the setting channel storage unit 95.

In addition, TV1 65, which is a sub-TV connected to the main television, is watched by a channel selected by the corresponding user, and the first microcomputer 45a transmits and receives the current channel data selected by the first tuner circuit 15a. 115) to the main television.

The channel data transmitted to the main television by the above is applied to the switching port 60, and the channel detector 100 connected to the switching port 60 is connected to the switching port 60. Detect channel data. When the channel data of the TV1 65 is detected by the channel detector 100, the detected channel data is applied to the comparator 105. If the TV1 65 selects the channel '4', the comparator 105 selects the viewing permission channels '1', '2', and '3' of the individual ID corresponding to the TV1 65. The data is read from the set channel storage unit 95, compared, and the results are applied to the microcomputer 45 because they do not coincide with each other.

According to the result applied by the comparator 105, the microcomputer 45 displays the prohibition message image signal stored in the warning image storage unit 110 on the CRT 50 through the image output unit 35 to allow the corresponding user. Do not watch.

In addition, the main television further includes means for releasing the parental control function of the sub-TV which changes the channel information for which the sub-TV is prohibited to watch so that the main television can be viewed. You can also disable the restriction function.

Through all the above processes, a plurality of sub-TV channel control apparatuses by the main television are implemented as the present invention intends.

As can be seen from the above description, the present invention provides each sub-TV so that a single main television can control a viewing permission channel of the plurality of sub-TVs when a plurality of televisions are connected to the main television and the sub-TV. Set the identification ID to distinguish the ID and store the allowable channel for viewing each identification ID, detect the channel information transmitted from the sub-TV and compare whether the currently viewed channel matches the stored allowable channel, and do not agree with each other. In this case, a warning message prohibiting viewing is output as an image so that whenever a sub-TV wants to watch, the main television can be watched without a switch-on operation. In this case, a sub-television allowed channel can be controlled through the main television. It works.

Claims (5)

A television system for controlling a plurality of sub-TVs connected to one main television, Key input means for inputting identification IDs and viewing permission channels of the sub-TVs; Allowed channel storage means for storing identification IDs and viewing permission channels of the plurality of sub-TVs; Switching means for selecting and switching a main television and a plurality of sub-TVs; Sub-channel channel data transmission means for transmitting channel data to the main television; A prohibition means for detecting channel data transmitted from the plurality of sub-TVs and outputting a prohibition message at the same time as the parental restriction; The main television compares the channel data transmitted from each of the sub-TVs with the channel information permitted for viewing corresponding to the identification ID set in the allowable channel storage unit to control the viewing permission function and the viewing restriction function. A plurality of sub-TV channel control apparatus according to the main television. The method according to claim 1, wherein the allowed channel storage means, An ID storage unit 90 for storing an individual ID of each sub-TV for identifying each sub-TV, A set channel storage unit connected to the ID storage unit 90 and storing a viewing permission channel of each sub-TV input through the remote controller 85 corresponding to each ID stored in the ID storage unit 90 ( 95. A plurality of sub-TV channel control apparatuses according to the main television, characterized in that consisting of (95). The method according to claim 1, wherein the viewing prohibition means, A channel detector 100 for detecting channel data currently being transmitted from each sub-television; A comparator 105 for comparing the viewing channel of each sub-TV detected by the channel detector 100 with the viewing permission channel of each sub-TV stored in the setting channel storage 95; A warning image storage unit 110 for storing a warning image message to prohibit viewing when the comparison result of the comparator 105 does not match each other; If the channel of each sub-TV set by the user and the current viewing channel do not match according to the result determined by the comparator 105, the microcomputer for controlling the warning image storage unit 110 to display the stored prohibition message as an image ( 45. A plurality of sub-TV channel control apparatuses according to the main television, characterized in that consisting of 45). The channel data transmission means of the sub television, A microcomputer that recognizes the channel selected by the tuner circuit unit and transmits it to the transceiver; A plurality of sub-TV channel control apparatus according to the main television comprising a transceiver for transmitting the channel data transmitted from the microcomputer to the switching port of the main television. The apparatus according to any one of claims 1 to 4, wherein the main television further comprises means for releasing the parental control function of each sub television. .