KR20070040201A - A method and an instrument for reproduction of video/audio - Google Patents

Abstract

The present invention relates to an image / sound playback apparatus / method for automatically adjusting the image / sound of a TV.

The present invention comprises the steps of synchronizing the video and audio signals received through the RF (Radio Frequency) stage; A post-processing step of correcting and outputting the synchronized video and audio signals according to channel information of a TV; And an image / sound reproducing unit for reproducing the corrected image and sound signal.

Therefore, according to the present invention, individual effects can be given to each channel (or television) by giving an individual video / sound mode to a specific channel.

Post-Processing Unit, RF Stage, Video / Sound Mode

Description

A method and an instrument for reproduction of video / audio}

1 is a block diagram of a video / sound reproducing apparatus according to the present invention;

2 is a block diagram showing a post-processing unit of a video / sound reproducing apparatus according to the present invention.

3 is a flowchart illustrating an operation of a post-processing unit of a video / sound reproducing apparatus according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: image / sound receiving unit 110: post-processing unit

111: TV mode determination unit 112: channel change determination unit

113: allocation mode determination unit 114: allocation mode change determination unit

115: manual mode change determination unit 120: video / sound playback unit

TECHNICAL FIELD The present invention relates to television, and more particularly, to a video / audio playback apparatus and method for automatically selecting a video / sound mode of a television.

Recently, the broadcast time of programs transmitted by airwaves from TV (Television) stations becomes longer, and since the cable TV stations provide programs for each family through cable during the daytime, viewers have various situations when watching programs on TV. It comes in contact with.

Recently introduced TV receivers include a function to adjust the image / sound mode to compensate for the influence of the surrounding environment and to reflect the user's taste. In the mode adjustment, image values such as contrast, brightness, color density, sharpness, and color are created by the user in order to create a desired screen, and in the case of sound, the balance between the channels and the adjustment of high / low element values Will produce the sound you want.

In the above-described conventional video / audio mode adjustment method, the user directly determines and adjusts each element value, but recently, the user pre-determines the element values corresponding to the characteristics of the video / audio of the program that the user wants to watch. In addition, the user can select the characteristics of the image / sound to automatically select the element values to adjust the image / sound mode more conveniently. The above-described predetermined features of the image / sound of the program are classified into names such as 'soft image' and 'sharp image' in case of an image, and in the name of 'sport', 'music', 'movie' and so on. Are classified.

However, the above-described conventional video / sound adjustment method or apparatus has the following problems.

First, in the case of adjusting the video / audio mode by using the above-described element values, it is cumbersome for the user to select the video / sound features of the above-described program according to the contents to be played. In addition, since the once selected video / audio mode is maintained regardless of the channel change or the change of contents, when viewing two channels having different contents alternately, an appropriate video / sound mode is repeatedly selected according to the channel change. Or, you can set the video / sound mode once and apply it to all contents in the same way.

Second, if the video / audio mode of the TV is automatically adjusted, the video / audio mode may frequently change when the video / audio broadcast state changes within the contents of the same program, thereby causing discomfort to the user. Can be.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a playback apparatus and method for automatically adjusting the video / sound mode of the TV.

Another object of the present invention is to provide an apparatus and method for reproducing an image / sound mode, which changes the image / sound mode only when there is a change in a TV channel.

It is still another object of the present invention to provide an apparatus and method for reproducing images and sounds which are automatically adjusted when the user wants to automatically change modes.

It is still another object of the present invention to give each channel (or television) a unique effect by giving the user a separate video / sound mode for a particular channel.

In order to achieve the above object, the present invention comprises the steps of synchronizing the video and audio signals received through the RF (Radio Frequency) stage; A post-processing step of correcting and outputting the synchronized video and audio signals according to channel information of the TV; And an image / sound reproducing unit for reproducing the corrected image and sound signal.

Preferably, the post-processing step includes: (a) determining whether the current mode of the TV is an automatic mode; (b) determining whether there is a channel change of the TV when the mode is an automatic mode; (c) detecting the current channel if there is a channel change, and then determining whether there is a mode allocated to the current channel; (d) if there is a mode assigned to the current channel, changing the current mode to the assigned mode, and then determining whether there is a change in the assigned mode; And (e) if there is a change in the assigned mode, changing the current mode to the assigned mode.

Preferably, in the step (a), if the current mode is the manual mode, (f) determining whether the manual mode has been changed; And (g) if there is a change in the manual mode, changing the mode of the current TV according to the changed mode.

Preferably, in step (f), if there is no change of the manual mode, the current TV mode should be maintained.

Preferably, in step (b), if there is no channel change of the TV, the current TV mode must be maintained.

Preferably, in step (c), if there is no mode assigned to the current channel, the current TV mode must be maintained.

Preferably, in step (d), if there is no change of the allocated mode, the current TV mode should be maintained.

The present invention provides a video / audio receiver for synchronizing video and audio signals received through an RF (Radio Frequency) stage; A post processor to correct and output the synchronized video and audio signals received from the video / audio receiver according to channel information of the TV; And an image / sound reproducing unit for reproducing an image and an audio signal received from the post-processing unit.

Preferably, the post-processing unit, a TV mode determination unit for determining whether the current mode of the TV automatic mode; A channel change determination unit to determine whether there is a channel change of the TV when the mode is an automatic mode; An allocation mode determination unit that detects a current channel and determines whether there is a mode allocated to the current channel when the channel is changed; An allocation mode change determination unit that determines whether there is a change in the allocated mode after changing the current mode to the allocated mode if there is a mode allocated to the current channel; And if there is a change in the allocated mode, the allocation mode changing unit for changing the current mode to the allocated mode.

Preferably, if the mode is determined to be a manual mode in the TV mode determination unit, a manual mode changing unit for determining whether there has been a change in the manual mode; And if it is determined that the manual mode is changed by the manual mode changing unit, a mode changing unit which changes the current TV mode according to the changed mode.

Preferably, if it is determined by the manual mode changing unit that there is no change of the manual mode, it should maintain the current TV mode.

Preferably, if it is determined that there is no channel change by the channel change determination unit, the current mode of the TV should be maintained.

Preferably, if it is determined by the allocation mode determination unit that there is no change of the allocated mode, the current mode of the TV should be maintained.

If it is determined that the allocation mode is not changed by the allocation mode change determination unit, the current mode of the TV must be maintained.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described. The same components as in the prior art are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

1 is a block diagram of a video / sound reproducing apparatus according to the present invention, FIG. 2 is a block diagram showing a post-processing unit of the video / sound reproducing apparatus according to the present invention, and FIG. 3 is a video / sound reproducing apparatus according to the present invention. Is a flowchart showing the operation of the post-processing unit. 1 to 3, an embodiment of an image / acoustic adjustment device and method according to the present invention will be described.

The image / sound playback apparatus according to the present invention includes an image / sound receiver 100, a post processor 110, and an image / sound playback unit 120. The video / audio receiver 100 synchronizes the video / audio signal received through a radio frequency (RF) terminal to a selected channel. The post processor 110 corrects and outputs the video / audio signal synchronized by the video / audio receiver 100 according to the channel information of the TV, and the video / audio playback unit 120 corrects the video / audio signal. Play the signal through the screen and speaker.

The post-processing unit 110 corrects the video / audio signal synchronized by the video / audio receiver 100 according to the channel information of the TV. The video / audio signal is synchronized with the channel information of the received TV program. This is the process of changing the contrast, brightness, color depth, sharpness, color and balance, and treble / bass of the audio signal. Hereinafter, the configuration or operation of the post-processing unit will be described.

The post processor 110 includes a TV mode determiner 111, a channel change determiner 112, an allocation mode determiner 113, an allocation mode change determiner 114, and a manual mode change determiner 115. It is done by First, when the image / sound information synchronized by the image / sound receiver 100 is input to the post processor 110, the TV mode determination unit 111 determines whether the current mode is the manual mode or the automatic mode ( S310).

At this time, if the current mode is the manual mode, the manual mode change determination unit 115 determines whether there is a manual mode change (S360), and if there is no manual mode change, the current mode is not changed without changing the currently selected mode. Broadcasting continues in the mode, but when the manual mode is changed, that is, when the user changes the mode, the mode is changed accordingly (S370).

If the current mode is determined to be the automatic mode by the TV mode determination unit 111, the channel change determination unit 112 then determines whether there is a change in the channel being broadcast on the TV (S320). At this time, if there is no change in the channel, broadcasting is continued in the current mode without changing the currently selected mode, but if there is a change in the channel, the changed channel is detected (S325).

Subsequently, the allocation mode determination unit 113 determines whether there is a pre-allocated mode in the channel detected in the step S325 (S330). If there is no pre-allocated mode in the detected channel, the current mode is not changed without changing the currently selected mode. If broadcasting continues in the mode of, but if there is a mode previously assigned to the detected channel, the mode of the TV is changed according to the allocated mode (S335).

Subsequently, the allocation mode change determination unit 114 determines whether there is a change in the allocated mode (S340), and if there is no change in the allocated mode, the broadcasting continues in the current mode without changing the currently selected mode. However, if there is a change in the allocated mode, the mode of the TV is changed according to the changed allocation mode (S350).

Referring to the operation of the embodiment according to the present invention described above are as follows.

If the user has manually set the image / sound mode of the TV, the image / sound is played accordingly. If the user changes the manual mode, the image / sound is played according to the changed manual mode. In other words, if the user does not want to change the video / audio mode, the user can watch TV in the video / audio mode set by the user regardless of the channel change, and maintain the video / audio state even if there are frequent channel changes.

If the user has set the video / audio mode of the TV automatically, the video / audio mode is automatically changed accordingly. If there is a channel change, the TV mode is automatically changed according to the mode assigned to the changed channel. Play video / sound. In addition, when the user changes the mode assigned to the program of the received channel, it is also possible to change the assigned mode and play the received video / audio information in another mode.

The above-described video / audio reproducing apparatus / method can reproduce high quality video / sound by using not only a TV but also a digital audio receiver having various channels, a digital multimedia broadcasting (DMB) receiver, a set-top box, or the like.

The present invention is not limited to the above-described embodiments, and such modifications are included within the scope of the present invention even though modifications may be made by those skilled in the art to which the present invention pertains.

Referring to the effects of the video / sound playback apparatus / method according to the present invention described above are as follows.

The video / sound playback apparatus / method according to the present invention can automatically adjust the video / sound mode of the TV.

The video / sound reproducing apparatus / method according to the present invention can change the video / sound mode only when there is a change in the TV channel.

The video / sound playback apparatus / method according to the present invention automatically adjusts the video / sound only when the user wants to change the automatic mode.

The video / sound reproducing apparatus / method according to the present invention can give an individual effect to each channel (or television) by giving an individual video / sound mode to a specific channel.

Claims (14)

Synchronizing the video and audio signals received through an RF (Radio Frequency) stage; A post-processing step of correcting and outputting the synchronized video and audio signals according to channel information of a TV; And And a video / audio playback step of playing back the corrected video and audio signals. The method of claim 1, wherein the post-treatment step, (a) determining whether a current mode of the TV is an automatic mode; (b) determining whether there is a channel change of the TV when the mode is an automatic mode; (c) detecting the current channel if there is a channel change, and then determining whether there is a mode allocated to the current channel; (d) if there is a mode assigned to the current channel, changing the current mode to the assigned mode, and then determining whether there is a change in the assigned mode; And (e) if there is a change in the assigned mode, changing the current mode to the assigned mode. According to claim 2, If the current mode of the TV in the step (a), (f) determining whether there has been a change in the manual mode; And (g) if there is a change of the manual mode, changing the mode of the current TV according to the changed mode. The method of claim 3, If the manual mode is not changed in the step (f), the video / sound reproduction method of maintaining the current TV mode. The method of claim 2, If there is no channel change of the TV in the step (b), the video / sound reproduction method of maintaining the current TV mode. The method of claim 2, If there is no mode assigned to the current channel in step (c), the video / sound reproduction method of maintaining the current TV mode. The method of claim 2, If there is no change in the allocated mode in the step (d), the video / sound reproduction method of maintaining the current TV mode. An image / audio receiver for synchronizing an image and an audio signal received through an RF (Radio Frequency) stage; A post processor to correct and output the synchronized video and audio signals received from the video / audio receiver according to channel information of the TV; And And a video / audio playback unit for playing back the video and audio signals received from the post-processing unit. The method of claim 8, wherein the post-processing unit, A TV mode determination unit determining whether the current mode of the TV is an automatic mode; A channel change determination unit to determine whether there is a channel change of the TV when the mode is an automatic mode; An allocation mode determination unit that detects a current channel and determines whether there is a mode allocated to the current channel when the channel is changed; An allocation mode change determination unit that determines whether there is a change in the allocated mode after changing the current mode to the allocated mode if there is a mode allocated to the current channel; And And an allocation mode changing unit for changing the current mode to the allocated mode when the allocated mode is changed. The method of claim 9, A manual mode change determination unit determining whether the manual mode has been changed when the mode is determined to be the manual mode by the TV mode determination unit; And And a mode changer for changing a current TV mode according to the changed mode if it is determined that the manual mode is changed by the manual mode changer. The method of claim 10, If the manual mode change unit determines that there is no change of the manual mode, the image / sound playback apparatus for maintaining the current TV mode. The method of claim 9, If the channel change determination unit determines that there is no channel change, the video / sound playback apparatus to maintain the current TV mode. The method of claim 9, And if the allocation mode determination unit determines that there is no change of the allocated mode, the video / audio playback apparatus maintains the current TV mode. The method of claim 9, And determining that the allocation mode has not been changed by the allocation mode change determining unit.

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