CN102244745B - A kind of method and device adjusting image integrity of television - Google Patents
A kind of method and device adjusting image integrity of television Download PDFInfo
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Abstract
The invention discloses a kind of method and the device that adjust image integrity of television, wherein, described method comprises: when receiving the request of adjustment image integrity degree, export the benchmark image with scale marker to television screen; Adjustment according to user operates, and changes the display position of described scale marker on described television screen; At the end of described adjustment operation, record direction and the number of pixels of described adjustment, and adjust position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.By the present invention, user can be enable according to the integrity degree of the demand adjustment television set epigraph of oneself, and this adjustment process can not affect the change of other performances of television set.
Description
Technical field
The present invention relates to digital television techniques field, particularly relate to a kind of method and the device that adjust image integrity of television.
Background technology
Reproduction ratio is an important indicator of TV images test, and it refers to that image programs that television screen reappears and TV station send the ratio of the image of image programs, namely can the percentage of actual displayed effective image on screen.Reproduction ratio is divided into vertical reproduction ratio and horizontal reproduction ratio, such as horizontal effective image pixel is 720, and actual displayed 680 points, horizontal reproduction ratio is exactly 680/720.In order to not affect normal viewing, general reproduction ratio should be more than or equal to 95%.But, for the actual television set dispatched from the factory, be not can both reach this standard completely, especially CRT television set, aging along with scanning circuit, and the different brightness of image, its reproduction ratio is more big changes, and causes the loss of image to increase, makes user cannot watch complete image.
But, need the software and hardware parameter (hardware parameter of television scanning circuit and adjustment television set display related register) by adjusting television set itself, the reproduction ratio of television set could be adjusted, and this kind of adjustment was all arranged before television set dispatches from the factory, the factory mode that domestic consumer cannot enter television set carries out the adjustment of reproduction ratio.Therefore, when domestic consumer finds that television set cannot present complete image, at most also can only by corresponding producer in the mode of on-site maintenance, enter the adjustment that factory mode carries out reproduction ratio, but this adjustment, for the geometric distortion (distortion comprising image etc.) generally all bringing image CRT television set, reduces the display quality of image.
Summary of the invention
The invention provides a kind of method and the device that adjust image integrity of television, user can be enable according to the integrity degree of the demand adjustment television set epigraph of oneself, and this adjustment process can not affect the change of other performances of television set.
The invention provides following scheme:
Adjust a method for image integrity of television, comprising:
When receiving the request of adjustment image integrity degree, export the benchmark image with scale marker to television screen;
Adjustment according to user operates, and changes the display position of described scale marker on described television screen;
At the end of described adjustment operation, record direction and the number of pixels of described adjustment, and adjust position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.
Preferably, described benchmark image is presented at digital television menu layer.
Preferably, the described adjustment according to user operates, and changes the display position of described scale marker on described television screen and comprises:
Adjustment according to user operates, and according to the step value of a pixel, is stretched by described benchmark image from center to surrounding, or from four circumferential central reduction.
Preferably, also comprise:
Store direction and the number of pixels of described adjustment;
During start next time, read direction and the number of pixels of the adjustment of described storage, automatically adjust position and the size of video frequency output window.
Preferably, the direction of described adjustment and number of pixels are stored in nonvolatile storage.
Preferably, also comprise:
When needing again to adjust described reproduction ratio, with the position of current video output window and size, as the outgoing position of described benchmark image on television screen and size.
Adjust a device for image integrity of television, comprising:
Benchmark image output unit, during for receiving the request adjusting image integrity degree, exports the benchmark image with scale marker to television screen;
Position changes unit, operates, change the display position of described scale marker on described television screen for the adjustment according to user;
Adjustment unit, at the end of described adjustment operation, records direction and the number of pixels of described adjustment, and adjusts position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.
Preferably, described benchmark image is presented at digital television menu layer.
Preferably, described position change unit specifically for: the adjustment according to user operates, and according to the step value of a pixel, is stretched by described benchmark image from center to surrounding, or from four circumferential central reduction.
Preferably, also comprise:
Memory cell, for storing direction and the number of pixels of described adjustment;
Automatic adjustment unit, when starting shooting for next time, reads direction and the number of pixels of the adjustment of described storage, automatically adjusts position and the size of video frequency output window.
Preferably, the direction of adjustment and number of pixels are stored in nonvolatile storage by described memory cell.
Preferably, also comprise:
Adjustment unit again, when again adjusting described reproduction ratio for needs, with the position of current video output window and size, as the outgoing position of described benchmark image on television screen and size.
According to specific embodiment provided by the invention, the invention discloses following technique effect:
The present invention is owing to can pass through to adjust the position of video frequency output window and the mode of size, and adjust the integrity degree of TV images, therefore, domestic consumer just according to the demand of oneself, can carry out the adjustment of image integrity degree.Further, because the present invention is by the output of adjustment picture signal, adjusts the integrity degree of TV images, and the hardware parameter of television set need not be changed, therefore, the otherwise performance of television set can not be affected.In other words, the present invention is when improving the integrality of television set display image, and not needing to reduce the otherwise performance of television set is cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the method that the embodiment of the present invention provides;
Fig. 2 is the schematic diagram of the benchmark image that the embodiment of the present invention provides;
Fig. 3 is the relation schematic diagram in the embodiment of the present invention after video frequency output window adjusting and shared by original image between region;
Fig. 4 is the schematic diagram of the device that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
For the ease of understanding the technical scheme that the embodiment of the present invention provides, first do some explanation following:
(1) why the image reproduction rate of television set can not reach absolutely, its reason is: linearly bad (place on edge of particularly keeping to the side) to cause television image edge to distort serious for the scanning circuit of simulated television, in order to avoid there is the distortion part of image at television screen edge, have employed overscan technique in a television set, by this technology, original image is expanded 5% even 10%, the image of distortion is extended to outside screen ranges, the only part of display middle part good linearity, this just causes image four periderm to cut out the phenomenon of going a part, this phenomenon is called overscanning.Obviously, as long as carried out overscanning, the image reproduction rate of television set just cannot reach absolutely.
(2) along with the fast development of television digitization, at present, the pattern of viewing Digital Television has two kinds usually, and one is digital TV integrated machine, and another is exactly digital TV set-top box+simulated television.In these two kinds of methods, digital signal is just transmitted in cable of cable TV, then through signal conversion module or Set Top Box, digital signal is converted into analog signal, that is, television set actual displayed be still analog signal.Therefore, still need to scan original image, if do not carry out special processing, still can there is the problem that reproduction ratio is not enough absolutely, user cannot watch complete original image.The embodiment of the present invention is exactly the situation for using these two kinds of method viewing Digital Television, the method of the adjustment image integrity degree proposed, introduce in detail for digital TV set-top box+simulated television below, for digital TV integrated machine, because its principle is identical with the mode of digital TV set-top box+simulated television, therefore with reference to carrying out.
See Fig. 1, the method that the embodiment of the present invention provides comprises the following steps:
S101: when receiving the request of adjustment image integrity degree, export the benchmark image with scale marker to television screen;
Here first it should be noted that, the image of Digital Television export be all by the image in several independent video memory after mixing calculates, be stored in a final video memory, then export through coding; Wherein, the corresponding specific layer of each independently video memory, such as, the display of menu is at menu layer, and the display of TV programme is at video layer.
Usually, digital television menu layer can by directly opening video memory or providing the interface of picture to draw menu for program developer, therefore, just by drawing at menu layer specifically with the benchmark image of scale marker, can output on television screen and allowing the image of user's subjective testing television set show integrated degree in the embodiment of the present invention.Although this benchmark image with scale marker draws at the menu layer of Digital Television, is not the output of decoding to video stream data, the output of this image and the output of video image are the same concerning television set.That is, television set all needs to carry out same overscanning to this two-layer image, therefore, and this two-layer image reproduction ratio on a television set i.e. consistent.In other words, reproduction ratio when also just determining program viewing is tested by the reproduction ratio of menu layer image.
When specific implementation, the selection of " adjustment image integrity degree " can be increased in menu option, after user have selected this option, just can to the benchmark image of television screen output with scale marker.Being somebody's turn to do can be as shown in Figure 2 with the benchmark image of scale marker.Wherein, the outer ledge of white portion is exactly the most outer of benchmark image, and the inside edge of black region just refers to the edge of television screen; The reproduction ratio that outermost " 5 " represent in the horizontal and vertical directions is 95%, and " 5 " relatively in the inner part that are adjacent represent that reproduction ratio is 85%, and middle " 0 " represents that reproduction ratio is 90%.If white portion is not blocked completely, then prove that the reproduction ratio of TV machine is exactly 100%, the situation of namely current display in this Fig. 2.Similarly, if in horizontal direction, the edge of television screen just drops on graduation mark corresponding to aforementioned outermost " 5 ", the horizontal reproduction ratio then representing TV machine is 95%, now, the white portion be equivalent in benchmark image show in outside screen, and user cannot see; If left-side images be can't see first graduation mark with " 5 ", then illustrate that the reproduction ratio of now horizontal direction is less than 95%, in like manner can judge other situations.
That is, for different television sets, the benchmark image that Set Top Box exports is all identical, and the reproduction ratio just due to television set self is different, and the effect that this benchmark image is finally demonstrated on television screen is different.Generally, when the reproduction ratio of television set is larger, the content that this benchmark image is presented on television screen is just many, otherwise when the reproduction ratio of television set is less, the content that this benchmark image is presented on television screen is just fewer.Also just because of this species diversity, by the display situation of this benchmark image, the representation performance of television set can be tested out.Simultaneously, due on this benchmark image with scale marker, this scale marker sets according to the displaying ratio of image, therefore, by the display situation of scale marker, user just directly can read the value of the reproduction ratio of television set, thus judges that the reproduction ratio of TV machine is bigger than normal or less than normal, and needs to do what adjustment.
S102: the adjustment according to user operates, changes the display position of described scale marker on described television screen;
After user judges the reproduction ratio of TV machine, just can adjust this reproduction ratio according to the needs of oneself.Concrete, for the ease of user operation and memory, can be adjustment key by " up and down " key assignments on remote controller, user can press these keys to adjust the reproduction ratio of television set.Such as, can by pressing left button or right button adjusts horizontal reproduction ratio, by can by pressing upper key or lower key adjusts vertical reproduction ratio; Meanwhile, can also set press left button and on build interval scale and increase reproduction ratio, press right button and lower key interval scale and reduce reproduction ratio.That is, when user finds that horizontal reproduction ratio is on the low side, left button can just be pressed to heighten horizontal reproduction ratio; When finding that vertical reproduction ratio is higher, lower key just can be pressed to turn down vertical reproduction ratio.
While user presses adjustment key, also need to change the display position of scale marker on described television screen, to demonstrate to user, the image display effect after adjustment, so that user can judge adjust to what degree.Such as, when user presses left button, then mean and need the horizontal reproduction ratio of increase, because the effect after horizontal reproduction ratio increases is: the pixel that horizontal direction demonstrates increases, namely user can see more picture material in the horizontal direction, therefore, need the medial movement of scale marker to video screen.Image display condition after movement on television screen can demonstrate adjustment after the reproduction ratio of image, if still inadequate, then can continue to press left button adjustment, when find image reproduction rate reach require time, just can terminate the adjustment of horizontal direction, next can also be carried out the adjustment of vertical direction by upper and lower key, the display position of the scale marker in vertical direction also can move similarly.Certainly, also first can carry out the adjustment of vertical direction, then carry out the adjustment of horizontal direction, or only carry out the adjustment on a direction.
During specific implementation, benchmark image can show centered by the intersection point of horizontal and vertical lines.In order to change the display position of described scale marker on described television screen, when user presses adjustment key, benchmark image can be stretched from center to surrounding, or from four circumferential central reduction, namely by the change of benchmark image size, the display position of scale marker on television screen is changed.
Such as, when user presses left button, then mean that user needs the horizontal reproduction ratio of increase, therefore should by benchmark image from the left and right sides to central reduction, namely reduce benchmark image size in the horizontal direction, to demonstrate more picture material on television screen, this change is for user, be equivalent to image integrality in the horizontal direction improve, namely the horizontal reproduction ratio of television set increases.And for example, when user presses lower key, then mean that user needs to reduce vertical reproduction ratio, therefore should by benchmark image both sides stretching, extension up and down from center, namely increase benchmark image size in vertical direction, reduce to demonstrate picture material on television screen, this change is for user, the integrality being equivalent to image reduces, and namely the vertical reproduction ratio of television set reduces.
Wherein, benchmark image, can using a pixel as step value when carrying out stretching or shrinking, and namely user often presses and adjusts key next time, benchmark image expansion or a contraction pixel.Like this, user may need to press repeatedly to adjust key in once adjusting, and step by step image reproduction rate is adjusted to oneself satisfied degree.Certainly, step value also can be set to multiple pixel, but may cause like this adjusting accurate not, when not high to precise requirements, and can by increasing the speed that step value is accelerated to adjust.
As mentioned before, when stretching or shrink benchmark image, the position of scale marker also can change thereupon, is the graduation mark of 95% below for left side reproduction ratio, introduces the computational methods of reposition after changing.
If the benchmark image Breadth Maximum exported is W
0, horizontal output origin coordinates is X
0, then the graduation mark coordinate at 95% place is X
0+ ((W
0/ 2) × 5%);
After pressing N left button, image shrinks, and now horizontal output origin coordinates is X
0+ N, the graduation mark coordinate at 95% place is X
0+ N+ ((W
0/ 2)-N) × 5%.
In like manner can calculate the display position of the graduation mark in other situation, repeat no more here.
From the above, be not the reproduction ratio changing television set by step S102, but demonstrate after the reproduction ratio of television set changes to user, with this, the display situation of image, knows user needs which kind of degree is reproduction ratio is adjusted to.
S103: at the end of described adjustment operation, record direction and the number of pixels of described adjustment, and adjust position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.
After user feels that current image meets the requirement of oneself, just can press acknowledgement key and terminate this time adjustment, and record current adjustment parameter, this adjustment parameter is exactly direction and the number of pixels of adjustment, such as, record user and have adjusted 5 pixels left, adjust upward 6 pixels, etc.
Video frequency output window just refers to the window of the video layer for display of television programmes, and in default situations, the size of this video frequency output window is identical with the display size of original image.But, in the software systems driver of digital TV set-top box and digital TV integrated machine, both provide the interface of adjustment video frequency output the window's position and size, utilize this interface namely can adjust arbitrarily position and the size of video frequency output window.Therefore, the embodiment of the present invention just can pass through this interface, utilizes this adjustment parameter to adjust position and the size of video frequency output window.
Such as, when user have adjusted 5 pixels left, when having adjusted upward 6 pixels, then the original position in the upper left corner of video frequency output window can be revised as (5,6) place, meanwhile, this video frequency output window full-size in the horizontal direction reduces 10 pixels, and full-size in vertical direction reduces 12 pixels.Video frequency output window is positioned at the center position in region shared by original image, and area is less than the area in region shared by original image, and as shown in Figure 3, the region wherein in S outside S ' is equivalent to be shown as black position relationship between the two, namely without any image.
For television set, after the position of video frequency output window and size carry out above-mentioned adjustment, image of its scanning is the region shown in Fig. 3, the whole region namely shared by original image; The mode of scanning can not change, and namely can carry out overscanning equally, equally can by the surrounding " sanction is gone " in whole region shared by original image.Obviously, the surrounding in this region is without any image before being scanned, and all images have all focused on the center in region, therefore, after four periderms " sanction is gone " in this region, can't lose picture material.Accordingly, just can demonstrate more complete original image on television screen, just relative to after adjustment, the size of image can reduce to some extent.In a word, by this operation, user can be made to see the complete TV image of 100%, the content outside original video screen is come back on screen, and the geometric distortion of image can not be produced, make the appreciation of TV programme more perfect.
It should be noted that, when reducing video frequency output window, can extract the pixel of respective number from horizontal direction or vertical direction equably out, such as, the pixel every some extracts a pixel out, and the pixel of extraction will not be re-used as valid pixel to be existed.Namely relative to original image, valid pixel number reduces to some extent, but, because the pixel reduced not is a certain region concentrating on image, therefore, from the angle of user's viewing, difference can't be felt compared with original image.That is, as long as the image in this video frequency output window is all shown, would not the integrality of effect diagram picture, the embodiment of the present invention has accomplished this point.And in the prior art, after carrying out overscanning process, be the equal of that the pixel of original image surrounding is all extracted out and will not be shown, the number of pixels of picture centre part can not reduce, but, from the angle of user's viewing, because the pixel of image peripheral does not all show, cannot obtain any information about this part image, therefore, image is incomplete.
Visible, the embodiment of the present invention adjusts to the benchmark image (image as menu layer) with scale marker as measurement means, integrity degree intuitively during reflection viewing video frequency program, then, by adjusting position and the size of the video frequency output window of digital TV integrated machine or digital TV set-top box, change the integrity degree of television set display image.
In sum, the method that the embodiment of the present invention provides is the interface utilizing adjustment video frequency output the window's position in digital television software driver and size, with with scale marker from output image for benchmark, by adjusting video frequency output window parameter, integrity degree television set being shown image adjusts to customer satisfaction system standard.Therefore, domestic consumer just according to the demand of oneself, can carry out the adjustment of image integrity degree.Further, adjustment process just can complete by means of only Set Top Box, does not relate to any change to television set self, more can not change the hardware parameters such as the scanning circuit of television set self, therefore, can not affect the otherwise performance of television set.In other words, the embodiment of the present invention is when improving the integrality of television set display image, and not needing to reduce the otherwise performance of television set is cost.Alternatively, the embodiment of the present invention is the reproduction ratio adopting indirectly mode to change television set.
Certainly, user, after carrying out an integrity degree adjustment, can preserve direction and the number of pixels of this time adjustment, when next time adjusts again, can with the position of video frequency output window after adjustment last time and size, as the outgoing position of described benchmark image on television screen and size.
In addition, after an integrity degree adjustment, if carried out power-off shutdown operation, then during start next time, this adjustment result, by no longer valid, if the image integrity degree after user still needed adjusted last time, then needs to re-start adjustment.In order to avoid the repetitive operation of user, direction and the number of pixels of adjustment last time can be stored equally, like this, when starting shooting next time, just can directly read stored adjustment direction and number of pixels, then, by Set Top Box automatically according to this adjustment direction and number of pixels, the position of adjustment video frequency output window and size, the integrity degree after making image integrity degree and adjusting before shutdown is identical.
Wherein, because user may carry out start repeatedly repeatedly and power-off operation, the position and the size that read the adjustment optimum configurations video frequency output window stored all is needed during each start, therefore, in order to ensure the validity stored, can be stored in nonvolatile storage by adjustment parameter, such as, can be eeprom or flash etc.
Corresponding with the method for the adjustment image integrity of television that the embodiment of the present invention provides, the embodiment of the present invention additionally provides a kind of device adjusting image integrity of television, and see Fig. 4, this device comprises:
Benchmark image output unit 401, during for receiving the request adjusting image integrity degree, exports the benchmark image with scale marker to television screen;
Position changes unit 402, operates, change the display position of described scale marker on described television screen for the adjustment according to user;
Adjustment unit 403, at the end of described adjustment operation, records direction and the number of pixels of described adjustment, and adjusts position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.
Wherein, described benchmark image is presented at digital television menu layer.
Wherein, described position change unit specifically for: the adjustment according to user operates, and according to the step value of a pixel, is stretched by described benchmark image from center to surrounding, or from four circumferential central reduction.
In order to avoid the repetitive operation of user, this device can also comprise:
Memory cell, for storing direction and the number of pixels of described adjustment;
Automatic adjustment unit, when starting shooting for next time, reads direction and the number of pixels of the adjustment of described storage, automatically adjusts position and the size of video frequency output window.
In order to ensure the validity stored, the direction of adjustment and number of pixels can be stored in nonvolatile storage by described memory cell.
In addition, this device can also comprise:
Adjustment unit again, when again adjusting described reproduction ratio for needs, with the position of current video output window and size, as the outgoing position of described benchmark image on television screen and size.
Above to a kind of method and device adjusting image integrity of television provided by the present invention, be described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. adjust a method for image integrity of television, it is characterized in that, comprising:
When receiving the request of adjustment image integrity degree, export the benchmark image with scale marker to television screen;
With scale marker on described benchmark image, described scale marker sets according to the displaying ratio of image, by the display situation of described scale marker, user directly reads the value of the reproduction ratio of television set, judge that the reproduction ratio of TV machine is bigger than normal or less than normal, and need to do what adjustment;
Adjustment according to user operates, and changes the display position of described scale marker on described television screen;
At the end of described adjustment operation, record direction and the number of pixels of described adjustment, and adjust position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.
2. method according to claim 1, is characterized in that, described benchmark image is presented at digital television menu layer.
3. method according to claim 1, is characterized in that, the described adjustment according to user operates, and changes the display position of described scale marker on described television screen and comprises:
Adjustment according to user operates, and according to the step value of a pixel, is stretched by described benchmark image from center to surrounding, or from four circumferential central reduction.
4. method according to claim 1, is characterized in that, also comprises:
Store direction and the number of pixels of described adjustment;
During start next time, read direction and the number of pixels of the adjustment of described storage, automatically adjust position and the size of video frequency output window.
5. method according to claim 4, is characterized in that, direction and the number of pixels of described adjustment are stored in nonvolatile storage.
6. method according to claim 1, is characterized in that, also comprises:
When needing again to adjust described reproduction ratio, with the position of current video output window and size, as the outgoing position of described benchmark image on television screen and size.
7. adjust a device for image integrity of television, it is characterized in that, comprising:
Benchmark image output unit, during for receiving the request adjusting image integrity degree, exports the benchmark image with scale marker to television screen;
With scale marker on described benchmark image, described scale marker sets according to the displaying ratio of image, by the display situation of described scale marker, user directly reads the value of the reproduction ratio of television set, judge that the reproduction ratio of TV machine is bigger than normal or less than normal, and need to do what adjustment;
Position changes unit, operates, change the display position of described scale marker on described television screen for the adjustment according to user;
Adjustment unit, at the end of described adjustment operation, records direction and the number of pixels of described adjustment, and adjusts position and the size of video frequency output window according to described direction and number of pixels, to realize the adjustment to image integrity of television.
8. device according to claim 7, is characterized in that, described benchmark image is presented at digital television menu layer.
9. device according to claim 7, is characterized in that, described position change unit specifically for: the adjustment according to user operates, and according to the step value of a pixel, is stretched by described benchmark image from center to surrounding, or from four circumferential central reduction.
10. device according to claim 7, is characterized in that, also comprises:
Memory cell, for storing direction and the number of pixels of described adjustment;
Automatic adjustment unit, when starting shooting for next time, reads direction and the number of pixels of the adjustment of described storage, automatically adjusts position and the size of video frequency output window.
11. devices according to claim 10, is characterized in that, the direction of adjustment and number of pixels are stored in nonvolatile storage by described memory cell.
12. devices according to claim 7, is characterized in that, also comprise:
Adjustment unit again, when again adjusting described reproduction ratio for needs, with the position of current video output window and size, as the outgoing position of described benchmark image on television screen and size.
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| CN1949823A (en) * | 2005-10-10 | 2007-04-18 | 深圳Tcl新技术有限公司 | Method for regulating television screen display |
| US20080056343A1 (en) * | 2006-08-30 | 2008-03-06 | Ravikiran Rajagopal | Frame synchronization |
| CN101163211B (en) * | 2006-10-10 | 2011-02-09 | 深圳Tcl新技术有限公司 | Regulation means of image fidelity factor |
| CN101287080A (en) * | 2007-04-10 | 2008-10-15 | 深圳Tcl新技术有限公司 | Method for adjusting image quality on television and television thereof |
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