CN101763802B - Image strengthening method and device for panel display - Google Patents
Image strengthening method and device for panel display Download PDFInfo
- Publication number
- CN101763802B CN101763802B CN2008102468203A CN200810246820A CN101763802B CN 101763802 B CN101763802 B CN 101763802B CN 2008102468203 A CN2008102468203 A CN 2008102468203A CN 200810246820 A CN200810246820 A CN 200810246820A CN 101763802 B CN101763802 B CN 101763802B
- Authority
- CN
- China
- Prior art keywords
- gamma curve
- original image
- real
- image
- pixel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Picture Signal Circuits (AREA)
- Image Processing (AREA)
Abstract
The invention provides an image strengthening method and a device for a panel display. The method comprises the following steps of: evaluating the integral brightness level of the original image; simulating a real-time gamma curve according to the integral brightness level; and substituting the grey scale of the original image into the real-time gamma curve to calculate the brightness value. The invention solves the problem of grey scale loss due to the separation of grey scale correction and contrast strengthening in the prior art, thereby obtaining good strengthening effect on various input images.
Description
Technical field
The present invention relates to field of flat panel displays, in particular to image enchancing method that is used for flat-panel monitor and device.
Background technology
Because the display characteristic of cathode-ray tube TV (CRT) is non-linear; The video signal that uses at present is in order to adapt to the requirement that cathode-ray tube TV (CRT) shows; All made Gamma (gamma in advance at the video signal transmitting terminal; Be gray scale) proofread and correct, so television reception to video signal be not linear.And for plasma television (PDP), LCD TV TVs such as (LCD), its display characteristic is linear, in order to show the vision signal through precorrection, must carry out anti-Gamma to vision signal and proofread and correct.In addition, in order to strengthen the display effect of video image, contrast enhancement technique is important techniques means that improve the video image picture display quality.
Yet in realizing process of the present invention; The inventor finds in the prior art that often the enhancing of gray correction and contrast is separately carried out, and causes gradation loss when degree of comparing strengthens; Particularly low gradation loss is very serious, and has limited the further lifting of the effect of contrast enhancing.
Summary of the invention
The present invention aims to provide a kind of image enchancing method and device that is used for flat-panel monitor, can solve the problem of existing image enchancing method gradation loss when degree of comparing strengthens.
In an embodiment of the present invention, a kind of image enchancing method that is used for flat-panel monitor is provided, has may further comprise the steps: the integral brightness level of estimating original image; According to integral brightness level match real-time gamma curve; And the gray scale substitution real-time gamma curve of original image calculated regulated value.
Optional, in above-mentioned image enchancing method, the integral brightness level of estimating original image specifically comprises: to the brightness statistics mean value of each pixel of original image.
Optional, in above-mentioned image enchancing method, the brightness statistics mean value of each pixel of original image is specifically comprised: calculate
Wherein, x is the horizontal ordinate of each pixel, and y is the ordinate of each pixel, and (x is that (C is the columns of original image to pixel for x, brightness y), and L is the line number of original image, and (I (x, y)) is a brightness statistics mean value to APL y) to I.
Optional, in above-mentioned image enchancing method, also comprise: the span with integral brightness level is divided into a plurality of grades in advance; Specifically comprise according to integral brightness level match real-time gamma curve: the value of confirming integral brightness level belongs to a grade in a plurality of grades; The fitting formula that the grade of confirming is updated to each standard gamma curve calculates many real-time gamma curve; Grade according to confirming is selected corresponding real-time gamma curve from many real-time gamma curve.
Optional, in above-mentioned image enchancing method, the gray scale substitution real-time gamma curve of original image is calculated regulated value specifically comprise: real-time gamma curve is made into tables of data is stored in the storer; The gray scale of original image value is retrieved in tables of data, to obtain adjusted value.
In an embodiment of the present invention, a kind of image intensifier device that is used for flat-panel monitor is provided also, has comprised: evaluation module is used to estimate the integral brightness level of original image; Fitting module is used for according to integral brightness level match real-time gamma curve; And computing module, be used for the gray scale substitution real-time gamma curve of original image is calculated regulated value.
Optional, in above-mentioned image intensifier device, evaluation module is used for the brightness statistics mean value to each pixel of original image.
Optional, in above-mentioned image intensifier device, evaluation module specifically comprises the brightness statistics mean value of each pixel of original image: calculate
Wherein, x is the horizontal ordinate of each pixel, and y is the ordinate of each pixel, and (x is that (C is the columns of original image to pixel for x, brightness y), and L is the line number of original image, and (I (x, y)) is a brightness statistics mean value to APL y) to I.
Optional, in above-mentioned image intensifier device, the span with integral brightness level is divided into a plurality of grades in advance; Specifically comprise according to integral brightness level match real-time gamma curve: confirm the unit, be used for confirming that the value of integral brightness level belongs to a grade of a plurality of grades; The match unit, the fitting formula that is used for the grade of confirming is updated to each standard gamma curve calculates many real-time gamma curve; Selected cell is used for selecting corresponding real-time gamma curve according to the grade of confirming from many real-time gamma curve.
Optional, in above-mentioned image intensifier device, computing module specifically comprises: the tabulation module is used for that real-time gamma curve is made into tables of data and is stored in storer; Retrieval unit is used for the gray scale of original image value is retrieved in tables of data, to obtain adjusted value.
Image enchancing method of the above embodiment of the present invention and device are because estimated integral brightness level; So overcome prior art gray correction and contrast are strengthened the problem of the gradation loss that is separately brought, and then can all obtain reinforced effects preferably various input pictures.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the process flow diagram of image enchancing method according to an embodiment of the invention;
Fig. 2 shows gamma 2.2 curves of standard;
Fig. 3 shows gamma curve according to the preferred embodiment of the invention;
Fig. 4 shows the block scheme of image intensifier device according to an embodiment of the invention;
Fig. 5 shows the block scheme of image intensifier device in accordance with a preferred embodiment of the present invention.
Embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
Fig. 1 shows the process flow diagram of the image enchancing method that is used for flat-panel monitor according to an embodiment of the invention, may further comprise the steps:
Step S10, the integral brightness level of evaluation original image;
Step S20 is according to integral brightness level match real-time gamma curve; And
Step S30 calculates regulated value with the gray scale substitution real-time gamma curve of original image.
This image enchancing method comes the dynamic implementation gamma to change based on the light and shade variation statistic of entire image, and this variation is the net result through calculating in real time.This image enchancing method strengthens the problem of the gradation loss that is separately brought so overcome prior art with gray correction and contrast, and then can all obtain reinforced effects preferably to various input pictures because estimated integral brightness level.
Optional, step S10 specifically comprises: to the brightness statistics mean value APL (Average Picture Level) of each pixel of original image.Mean value can reflect the integral brightness level of image preferably.
Optional, the brightness statistics mean value of each pixel of original image specifically comprises: calculate
Wherein, x is the horizontal ordinate of each pixel, and y is the ordinate of each pixel, and (x is that (C is the columns of original image to pixel for x, brightness y), and L is the line number of original image, and (I (x, y)) is a brightness statistics mean value to APL y) to I.
This formula calculated amount is less, realizes easily on the hardware.
Optional, in above-mentioned image enchancing method, also comprise: the span with integral brightness level is divided into a plurality of grades in advance; Step S20 specifically comprises:
The value of confirming integral brightness level belongs to a grade in a plurality of grades;
The fitting formula that the grade of confirming is updated to each standard gamma curve calculates many real-time gamma curve;
Grade according to confirming is selected corresponding real-time gamma curve from many real-time gamma curve.
For example, if the span of APL is 0～255, can the full luminance level be divided into three kinds of grades: 0～100 is grade one, and the brightness of expression entire image is dark partially; 101-180 is a grade two, representes that whole input image lightness is more normal; 181～255 is grade three, representes that the brightness of whole input picture is the brightest.Thereby just can the statistic of input picture be calculated through the APL computing formula, sum up in the point that then in the Three Estate of dividing the front and go.And then can execution in step S30 carry out the anti-Gamma correction of image.
It should be noted that; In the above embodiments, because be provided with many standard gamma curve in advance, and the corresponding fitting formula of per two gamma curve; Be generally binomial, the grade of confirming be updated in each fitting formula as binomial coefficient calculate.The calculating of each fitting formula can be carried out synchronously, so obtain many real-time gamma curve, selects wherein one according to the grade of confirming again.Because these fitting formulas can calculate synchronously, so do not have any loss on the efficient.
One embodiment of the present of invention adopt another kind of method, earlier select the corresponding standard gamma curve based on the grade of confirming, only the fitting formula to the standard gamma curve selected calculates the real-time gamma curve that needs.This is equivalent to the selection step has been carried out in advance, and effect and top embodiment distinguish not quite.
In addition, the picture contrast technique for enhancing means that adopt at present, its reinforced effects is uncontrollable, shows it is inapplicable for video image, particularly TV, its reinforced effects has caused the distortion of image too by force.And the image enchancing method of present embodiment can also pass through to formulate different standard gamma curve and fitting formula and grading standard, thereby reinforced effects is controlled, to satisfy user's different demands.
Optional, step S30 specifically comprises: real-time gamma curve is made into tables of data is stored in the storer; The gray scale of original image value is retrieved in tables of data, to obtain adjusted value.
Convert real-time gamma curve to tables of data that a series of sampled points obtain, obtain adjusted value with the mode of tabling look-up then, obviously speed can be faster.One embodiment of the present of invention then obtain adjusted value through in real time gray scale substitution real-time gamma curve being calculated.
Fig. 2 shows gamma 2.2 curves of standard, in general gamma varying circuit, all adopts this to change the linearizing process of FPD that realizes.The gray-scale value of the corresponding original image of the horizontal ordinate of Fig. 2, the corresponding adjusted value of ordinate.
Fig. 3 shows gamma curve according to the preferred embodiment of the invention.This curve is that APL calculates the gained result when being chosen in the phase one (darker picture).Can find out utilize gamma be 1 with gamma be two curves of 3, utilize quadratic polynomial to come the final curve of match 2, this curve can increase the brightness of image in dark picture, in bright picture, increased the amplitude of variation of image.Therefore can when carrying out the gamma anti-change, strengthen the effect of image.
In an embodiment of the present invention, a kind of image intensifier device (as shown in Figure 4) that is used for flat-panel monitor is provided also, has comprised:
This image intensifier device strengthens the problem of the gradation loss that is separately brought so overcome prior art with gray correction and contrast, and then can all obtain reinforced effects preferably to various input pictures because estimated integral brightness level.
Optional, evaluation module 10 is used for the brightness statistics mean value to each pixel of original image.Mean value can reflect the integral brightness level of image preferably.
Optional, the brightness statistics mean value of 10 pairs of original image values of evaluation module specifically comprises: calculate
Wherein, x is the horizontal ordinate of each pixel, and y is the ordinate of each pixel, and (x is that (C is the columns of original image to pixel for x, brightness y), and L is the line number of original image, and (I (x, y)) is a brightness statistics mean value to APL y) to I.This formula calculated amount is less, realizes easily on the hardware.
Optional, the span with integral brightness level is divided into a plurality of grades in advance; Fitting module 20 specifically comprises:
Confirm the unit, be used for confirming that the value of integral brightness level belongs to a grade of a plurality of grades;
The match unit, the fitting formula that is used for the grade of confirming is updated to each standard gamma curve calculates many real-time gamma curve;
Selected cell is used for selecting corresponding real-time gamma curve according to the grade of confirming from many real-time gamma curve.
For example, if the span of APL is 0～255, can the full luminance level be divided into three kinds of grades: 0～100 is grade one, and the brightness of expression entire image is dark partially; 101-180 is a grade two, representes that whole input image lightness is more normal; 181～255 is grade three, representes that the brightness of whole input picture is the brightest.Thereby can just can the statistic of input picture be calculated through the APL computing formula, sum up in the point that then in the Three Estate of dividing the front and go.And then can carry out the anti-Gamma correction of image through computing module 30.
It should be noted that; In the above embodiments, because be provided with many standard gamma curve in advance, and the corresponding fitting formula of per two gamma curve; Be generally binomial, the grade of confirming be updated in each fitting formula as binomial coefficient calculate.The calculating of each fitting formula can be carried out synchronously, so obtain many real-time gamma curve, selects wherein one according to the grade of confirming again.Because these fitting formulas can calculate synchronously, so do not have any loss on the efficient.
One embodiment of the present of invention adopt another kind of fitting module 20, earlier select the corresponding standard gamma curve according to the grade of confirming, only the fitting formula to the standard gamma curve selected calculates the real-time gamma curve that needs.This is equivalent to the selection step has been carried out in advance, and effect and top embodiment distinguish not quite.
In addition, the picture contrast technique for enhancing means that adopt at present, its reinforced effects is uncontrollable, shows it is inapplicable for video image, particularly TV, its reinforced effects has caused the distortion of image too by force.And this image intensifier device can also be controlled reinforced effects through formulating different gamma curve, to satisfy user's different demands.
Optional, in above-mentioned image intensifier device, computing module 30 specifically comprises:
The tabulation module is used for that real-time gamma curve is made into tables of data and is stored in storer;
Retrieval unit is used for the gray scale of original image value is retrieved in tables of data, to obtain adjusted value.
Convert real-time gamma curve to tables of data that a series of sampled points obtain, obtain adjusted value with the mode of tabling look-up then, obviously speed can be faster.One embodiment of the present of invention then obtain adjusted value through in real time gray scale substitution real-time gamma curve being calculated.
Fig. 5 shows the block scheme of image intensifier device in accordance with a preferred embodiment of the present invention, specifically comprises:
The APL statistical circuit is used to calculate APL, promptly realizes evaluation module 10;
The gamma counting circuit of input signal is used for selecting different computing formula to calculate the real-time gamma curve of match to the APL of different brackets original gamma, promptly is used for designing in advance various real-time gamma curve;
Gamma is selected circuit, is used for the grade according to APL, the real-time gamma curve of selecting corresponding gamma counting circuit to be calculated.Gamma counting circuit and gamma select circuit to realize fitting module 20 together;
The gamma look-up tables circuit is used for the tables of data that gamma curve that the RGB data-signal retrieval gamma counting circuit with input calculates obtains, and is adjusted value through searching the RGB data that corresponding relation obtains after the final conversion then, promptly realizes computing module 30.
In the gamma counting circuit; Main account form is exactly to carry out data computation to the gamma curve such as 1,2.2,2.6 that different APL will be original according to the needs of scheming image intensifying; For example: when the darker picture of image, just must use a kind of image match mode between 1 and 2.2 gamma curve, and the numerical value that obtains utilizing APL to issue the gamma computing unit of this image generates.
In use, storing corresponding gamma curve in the gamma circuit in advance earlier, is gamma 1 like what store here, gamma 2, gamma 2.2 and gamma 2.6 curves.Calculate the APL value through input RGB data, the APL value here is defined as the interval of 0-255 through the normalization process.After APL calculates initial value, utilize this initial value to select the computing formula in the gamma computing module, calculate two required gamma values then.Obtain utilizing after the gamma result of calculation calculated value of APL to influence gamma and select circuit to get gamma tables to the end, input signal obtains final RGB output result under the mapping of final gamma tables.
From above description, can find out that the above embodiments image enchancing method of the present invention and device can strengthen video image degree of comparing when carrying out anti-Gamma correction.And contrast strengthens and to be based on APL statistics back and gamma curve to be carried out the method for formula adjustment realizes, this method can all obtain reinforced effects preferably to various input pictures.The image enchancing method that the present invention proposes can also be controlled reinforced effects with device, to satisfy user's different demands.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the memory storage and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an image enchancing method that is used for flat-panel monitor is characterized in that, may further comprise the steps:
Through the brightness statistics mean value of each pixel of original image being estimated the integral brightness level of said original image;
According to said integral brightness level match real-time gamma curve; And
The said real-time gamma curve of gray scale substitution of said original image is calculated regulated value;
Wherein, in advance the span of said integral brightness level is divided into a plurality of grades; Specifically comprise according to said integral brightness level match real-time gamma curve: the value of confirming said integral brightness level belongs to a grade in said a plurality of grade; The fitting formula that said definite grade is updated to each standard gamma curve calculates many real-time gamma curve; From many real-time gamma curve, select corresponding real-time gamma curve according to said definite grade.
2. image enchancing method according to claim 1 is characterized in that, the brightness statistics mean value of said each pixel of original image is specifically comprised:
Calculate
Wherein, x is the horizontal ordinate of said each pixel, and y is the ordinate of said each pixel, and (x is that (C is the columns of said original image to pixel for x, brightness y), and L is the line number of said original image, and (I (x, y)) is said brightness statistics mean value to APL y) to I.
3. image enchancing method according to claim 2 is characterized in that, the said real-time gamma curve of gray scale substitution of said original image is calculated regulated value specifically comprise:
Said real-time gamma curve is made into tables of data to be stored in the storer;
The gray scale of said original image value is retrieved in said tables of data, to obtain said regulated value.
4. an image intensifier device that is used for flat-panel monitor is characterized in that, comprising:
Evaluation module is used for through the brightness statistics mean value of each pixel of original image being estimated the integral brightness level of said original image;
Fitting module is used for according to said integral brightness level match real-time gamma curve; And
Computing module is used for the said real-time gamma curve of gray scale substitution of said original image is calculated regulated value;
Wherein, in advance the span of said integral brightness level is divided into a plurality of grades; Said fitting module comprises: confirm the unit, be used for confirming that the value of said integral brightness level belongs to a grade of said a plurality of grades; The match unit is used for the fitting formula that said definite grade is updated to each standard gamma curve is calculated many real-time gamma curve; Selected cell is used for selecting corresponding real-time gamma curve according to said definite grade from many real-time gamma curve.
5. image intensifier device according to claim 4 is characterized in that, said evaluation
Module specifically comprises the brightness statistics mean value of said each pixel of original image:
Calculate
Wherein, x is the horizontal ordinate of said each pixel, and y is the ordinate of said each pixel, and (x is that (C is the columns of said original image to pixel for x, brightness y), and L is the line number of said original image, and (I (x, y)) is said brightness statistics mean value to APL y) to I.
6. image intensifier device according to claim 4 is characterized in that, said computing module specifically comprises:
The tabulation module is used for that said real-time gamma curve is made into tables of data and is stored in storer;
Retrieval unit is used for the gray scale of said original image value is retrieved in said tables of data, to obtain said regulated value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102468203A CN101763802B (en) | 2008-12-31 | 2008-12-31 | Image strengthening method and device for panel display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102468203A CN101763802B (en) | 2008-12-31 | 2008-12-31 | Image strengthening method and device for panel display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101763802A CN101763802A (en) | 2010-06-30 |
| CN101763802B true CN101763802B (en) | 2012-06-20 |
Family
ID=42494944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102468203A Expired - Fee Related CN101763802B (en) | 2008-12-31 | 2008-12-31 | Image strengthening method and device for panel display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101763802B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427517B (en) * | 2011-09-30 | 2017-05-31 | 青岛海信电器股份有限公司 | The method of adjustment and device of dynamic contrast, liquid crystal TV set |
| CN104299187B (en) * | 2013-07-15 | 2018-08-31 | 上海联影医疗科技有限公司 | The image processing method and device of X-ray shooting system |
| US10741116B2 (en) | 2013-12-18 | 2020-08-11 | Kunshan New Flat Panel Display Tech. Cr. Co. Ltd. | Method and device for determining Gamma parameters and displaying method |
| CN104732953B (en) * | 2013-12-18 | 2017-10-17 | 昆山工研院新型平板显示技术中心有限公司 | The display methods and device of Gamma determination method for parameter and device and display |
| CN105592254B (en) * | 2014-10-21 | 2019-01-08 | 宏碁股份有限公司 | Image display method and electronic device |
| CN110139020B (en) * | 2018-02-09 | 2021-04-27 | 杭州海康威视数字技术股份有限公司 | Image processing method and device |
| CN109166521B (en) * | 2018-09-27 | 2020-10-02 | 武汉天马微电子有限公司 | Driving method of organic light-emitting display panel, driving chip and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664900A (en) * | 2004-01-21 | 2005-09-07 | 恩益禧电子股份有限公司 | Driver circuit for light emitting element |
| CN1717714A (en) * | 2002-11-27 | 2006-01-04 | 皇家飞利浦电子股份有限公司 | Method of improving the perceptual contrast of displayed images |
-
2008
- 2008-12-31 CN CN2008102468203A patent/CN101763802B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1717714A (en) * | 2002-11-27 | 2006-01-04 | 皇家飞利浦电子股份有限公司 | Method of improving the perceptual contrast of displayed images |
| CN1664900A (en) * | 2004-01-21 | 2005-09-07 | 恩益禧电子股份有限公司 | Driver circuit for light emitting element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101763802A (en) | 2010-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101763802B (en) | Image strengthening method and device for panel display | |
| CN108766372B (en) | Method for improving mura phenomenon of display panel | |
| CN100375987C (en) | Method for treating color plasma display screen grey | |
| CN100512375C (en) | Video image contrast intensifying method and apparatus | |
| US8390542B2 (en) | Apparatus, method, and program for processing image | |
| CN101123059A (en) | Image display device and image display method supporting power control of multicolor light source | |
| CN108364271B (en) | Method and device for improving image contrast | |
| US8154565B2 (en) | Apparatus and method for gamma correction | |
| CN100407264C (en) | Brightness compensation method of two-dimensional display | |
| KR100387202B1 (en) | Error diffusion processing device of display device | |
| CN103440656A (en) | Image Gamma correction method for creating lookup table based on Taylor series fitting | |
| US20090153456A1 (en) | Method for generating over-drive data | |
| US20080117152A1 (en) | Backlight processing system and method thereof | |
| CN101661720B (en) | Color correction method used for liquid crystal display and device thereof | |
| US8462181B2 (en) | Driving method and display device capable of enhancing image brightness and reducing image distortion | |
| CN100397451C (en) | Method and apparatus for calculating an average picture level and plasma display using the same | |
| CN101083720A (en) | TV receiver and TV receiving method | |
| CN110544457B (en) | Inverse Gamma dynamic mapping algorithm | |
| CN100476920C (en) | Plasma display panel driving apparatus, signal processing method and image display apparatus for plasma display panel | |
| CN108962155B (en) | Brightness adjusting method and display | |
| KR20090042024A (en) | Driving method for liquid crystal display device | |
| CN100550120C (en) | Image treatment method in the LCD | |
| CN100412941C (en) | Brightness adjuster and adjusting method | |
| JP2002142132A (en) | Apparatus and method for correcting image data | |
| CN115035857A (en) | Display control method and device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20161231 |