KR20040009376A - Apparatus and Method for Controlling Power of The TV - Google Patents

Abstract

PURPOSE: An apparatus and a method for controlling power of a TV are provided to automatically block output of images or sounds in the event of audio broadcasting or data broadcasting. CONSTITUTION: An apparatus for controlling power of a TV includes a power supply(50), the first, second, third and fourth switches(61,62,63,64), and a controller(90). The power supply supplies power to an audio processor(30), an audio output unit(31), a video processor(40) and a video output unit(41) of the TV. The first, second, third and fourth switches are respectively connected to the audio processor, audio output unit, video processor and video output unit to supply the power from the power supply to the components. The controller outputs a control signal to the first, second, third or fourth switch to cut the power of the audio processor and audio output unit or power of the video processor and video output unit when a broadcasting signal received through a tuner of the TV is an audio or data broadcasting signal.

Description

TV power control device and its method {Apparatus and Method for Controlling Power of The TV}

TECHNICAL FIELD The present invention relates to a TV, and more particularly, to a power supply control apparatus and a method of a TV for partially controlling a power supply.

In general, digital broadcasting is a next-generation broadcasting technology capable of two-way operation, reproduction, and accumulation, unlike conventional analog broadcasting, and refers to television broadcasting that compresses and outputs a television signal in a digital form in which information signals are encoded and recorded.

Conventional analogue television broadcasting can only carry one image in one radio wave, and voice has to be transmitted in another radio wave. On the other hand, digital broadcasting can not only carry a plurality of images or audio in one radio wave, but also compress information without compromising quality, so that 4 to 8 channels can be set in the existing frequency band of one channel. In addition, it is easy to control information using a computer, and it is also possible to interactively view information ordered from the viewer side.

In addition, digital broadcasting compresses video and audio and modulates various signals to use such compression and multiple modulation techniques for communication and computers. In the United States and Europe, digitalization is rapidly occurring not only in satellite and cable television but also in conventional terrestrial broadcasting.

Such digital broadcasting may include audio broadcasting carrying only voice and data broadcasting carrying only data such as text in addition to broadcasting carrying voice and video at the same time.

At this time, the audio broadcasting channel outputs only the voice and at the same time displays a very simple fixed screen or only the corresponding texts are displayed in the data broadcasting channel.

In the above-described TV watching digital broadcasting, when using audio broadcasting or data broadcasting, there is a problem that power is not consumed because video or audio is output even when the viewer does not want the video or audio.

In other words, it is impossible to block the video output in the case of audio broadcasting or to block the audio output in the case of data broadcasting.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, an object of the present invention is to provide a TV power control apparatus and method for automatically cutting off the video or audio output during audio broadcasting or data broadcasting. To provide.

1 is a block diagram showing the configuration of a power supply control apparatus for a TV according to the present invention.

2 is a view showing an embodiment of a switching unit of the present invention;

3 is a flow chart showing a power control method of the TV according to the present invention.

Explanation of symbols for main parts of the drawings

10: tuner 20: TP separator

30: voice processing unit 31: voice output unit

40: image processing unit 41: image output unit

50: power supply

61, 62, 63, 64: first, second, third, fourth switching unit

70: port expansion unit 80: key input unit

90: control unit

TV power control apparatus according to the present invention for achieving the above object in the TV having a tuner, TP separation unit, audio processing unit, audio output unit, image processing unit and image output unit, the audio processing unit, audio output unit, image A power supply unit for supplying power required for a processing unit and an image output unit, the audio processing unit, an audio output unit, an image processing unit and an image output unit, respectively, and the power supplied from the power supply unit is the audio processing unit, the audio output unit, A first, second, third or fourth switching unit which is turned on / off to be output to the image processing unit and the image output unit, respectively, and if the broadcast signal received through the tuner is an audio or data broadcasting signal, the audio processing unit and the audio output unit. Or a control unit outputting a control signal to the first, second, third or fourth switching unit to cut off power of the image processing unit and the image output unit. It is configured to include its features.

In addition, the TV power control method according to the present invention for achieving the above object in the TV control method having a voice processing unit, audio output unit, image processing unit, image output unit, the user selects a channel and selects the selected channel Doing; Turning off the power of the image processing unit and the image output unit if the tuned channel is an audio channel; If the tuned channel is a data channel, the method comprises turning off the power of the voice processing unit and the voice output unit.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings will be described a TV power control device and method according to the present invention.

1 is a block diagram showing a power control device of the TV according to the present invention, the power control device of the TV according to the present invention with reference to the following.

As shown, the power control apparatus of the TV according to the present invention is a tuner 10 receiving a digital broadcast signal, and the TP (Transport Packet) of the digital broadcast signal received from the tuner 10 is a voice signal, an image signal and TP separation unit 20 for separating data signals, voice processing unit 30 for converting digital voice signals separated in TP separation unit 20 into analog signals, and audio output unit 31 for outputting analog voice signals. And an image processor 40 for processing the digital image signal and the data signal separated by the TP separator 20 to fit the image format of the TV itself or through a predetermined process, and the image processed by the image processor 40. In a TV having an image output unit 41 for displaying a signal or a data signal on a screen, it is necessary for the audio processor 30, the audio output unit 31, the image processor 40, and the image output unit 41. Power supply unit 50 for supplying each power The power supplied from the power supply unit 50 is connected to the audio processing unit 30, the audio output unit 31, the image processing unit 40, and the image output unit 41, respectively. The first, second, third or fourth switching units 61 to 64 and the tuner 10 which are turned on / off to be output to the output unit 31, the image processing unit 40 and the image output unit 41, respectively. When the broadcast signal received through the audio or data broadcast signal is the first and the first to cut off the power of the audio processing unit 30 and the audio output unit 31 or the image processing unit 40 and the image output unit 41 And a control unit 90 for outputting a control signal to the second, third or fourth switching units 61 to 64.

The apparatus further includes a port expansion unit 70 for transmitting a control signal of the control unit 90 to the first, second, third or fourth switching units 61 to 64.

Looking at the operation of the power control device of the TV according to the present invention configured as described above, the broadcast signal received through the tuner 10 is input to the TP separator 20 is separated into a voice signal, a video signal and a data signal.

The separated audio signal is output through the audio output unit 31 through the audio processor 30, and the video signal and data signal are implemented through the image output unit 41 through the image processor 40.

Here, the power supply unit 50 is a power required for the audio processing unit 30, the audio output unit 31, the image processing unit 40 and the image output unit 41 for the predetermined audio and image processing and audio and image output. Supply each.

The user selects an audio or data channel through the key input unit 80.

At this time, if the channel selected by the user is an audio channel, the controller 90 recognizes the corresponding audio broadcast signal received from the tuner 10 and outputs the corresponding control signal.

The control unit 90 outputs the control signal to the switching unit 60 via the port expansion unit 70 through IIC communication. That is, the power supply unit 50 outputs the control signal to the third and fourth switching units 63 and 64 to cut off the power of the image processing unit 40 and the image output unit 41. 40 and the power supplied to the image output unit 41 are cut off.

The audio (voice) broadcast signal is processed to output only voice through the voice output unit 31.

In addition, when the channel selected by the user is a data channel, the control signal of the controller 90 is output to the first and second switching units 61 and 62 to supply power to the voice processor 30 and the voice output unit 31. Blocks and displays only the data of the text format through the image output unit 41.

In this case, since the first and third switching units 61 and 63 connected to the audio processor 30 or the image processor 40 relatively control a small voltage, the regulator B is used as shown in FIG. 2. Since the second and fourth switching units 62 and 64 connected to the audio output unit 31 or the image output unit 41 control a relatively large voltage, a photo coupler or a relay A is used.

Referring to the TV power control method according to the present invention operating as described above are as follows.

As shown in FIG. 3, a user first selects a channel (S10) and determines whether the selected channel is an audio channel (S11).

As a result of the determination (S11), if the selected channel is an audio channel, the power of the video related configuration is turned off (S12).

In other words, the power is applied to the image processing unit (video signal processing unit) 40 and the image output unit (video signal output unit) 41, and only audio is output to provide audio broadcasting.

Subsequently, it is determined whether a channel change command is input from the user during audio broadcasting (S13). When the channel change command is input, the determination result (S13) turns on the power of the image processing unit 40 and the image output unit 41 ( S14) Tuning and providing the switched channel (S15).

On the other hand, the determination result (S11) it is determined whether or not the selected channel is a data channel (S20).

As a result of the determination (S20), if the selected channel is a data channel, the power applied to the audio processing unit 30 and the audio output unit 31 is cut off (S21) and only the image is output to provide data broadcasting.

Subsequently, it is determined whether a channel switching command is input from the user during the data broadcasting (S22). When the channel switching command is input from the user, the voice processing unit 30 and the voice output unit 31 are determined. Turn on (S23).

The channel corresponding to the channel change command is tuned and a tuned channel program is provided (S15).

On the other hand, if the channel selected by the user is not an audio or data channel (S20), the selected channel is tuned to provide the tuned channel program (S24).

The present invention is to enable to automatically block unnecessary video or audio when you want to watch audio or data broadcasting during digital broadcasting.

In addition to the above-described method of automatically cutting off the video or audio when using audio or data broadcasting, the user may manually control the video or audio output through the key input unit 80.

For example, when a user selects an audio channel and inputs an image blocking command through a separate key of the key input unit 80 while watching the selected channel, the image processing unit 40 and the image output unit 41 according to the image blocking command. By turning off the power supply, you can block the video output.

The power control apparatus and method of the TV according to the present invention described above have the effect of preventing unnecessary power consumption when using audio or data broadcasting by automatically / manually blocking unnecessary video or audio output when using audio or data broadcasting. .

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (5)

In a TV having a tuner, a TP separator, a voice processor, a voice output unit, an image processor and an image output unit, A power supply unit for supplying power required for the audio processing unit, the audio output unit, the image processing unit, and the image output unit; A first connection connected to the audio processing unit, the audio output unit, the image processing unit, and the image output unit so that power supplied from the power supply unit is output to the audio processing unit, the audio output unit, the image processing unit, and the image output unit, respectively; , Second, third or fourth switching unit, If the broadcast signal received through the tuner is an audio or data broadcast signal, the first, second, third or fourth switching unit is controlled to cut off the power of the audio processing unit and the audio output unit or the image processing unit and the image output unit. TV power control device comprising a control unit for outputting a signal. The method of claim 1, And a port expansion unit for transmitting the control signal of the control unit to a corresponding first, second, third or fourth switching unit. The method of claim 1, The first to fourth switching unit TV power control device characterized in that the photo coupler (Relay) or regulator (Regulator). In the TV control method comprising a voice processing unit, an audio output unit, an image processing unit, an image output unit, The user selecting a channel and tuning into the selected channel; Turning off the power of the image processing unit and the image output unit if the tuned channel is an audio channel; And, And turning off the power of the voice processing unit and the voice output unit if the selected channel is a data channel. The method of claim 4, wherein And turning on the power of the image processing unit and the image output unit or the audio processing unit and the audio output unit when a channel switching command is input from a user.