CN101742193B - Method for adding watermark into digital movie - Google Patents
Method for adding watermark into digital movie Download PDFInfo
- Publication number
- CN101742193B CN101742193B CN 200910243435 CN200910243435A CN101742193B CN 101742193 B CN101742193 B CN 101742193B CN 200910243435 CN200910243435 CN 200910243435 CN 200910243435 A CN200910243435 A CN 200910243435A CN 101742193 B CN101742193 B CN 101742193B
- Authority
- CN
- China
- Prior art keywords
- watermark
- video frame
- player
- frame images
- noise
- 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
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000011159 matrix material Substances 0.000 claims description 27
- 229910002056 binary alloy Inorganic materials 0.000 claims description 14
- 241001463139 Vitta Species 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000004224 protection Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 238000012952 Resampling Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Abstract
The invention discloses a method for adding a watermark into a digital movie, which belongs to the technical field of digital movie copyright protection. The method is realized in a way that: in the playing process of the digital movie, circularly adding the unique serial number of the player for playing the digital movie into the video frame images in a watermark mode; adding a watermark representing the unique serial number of the player into the video frame image every other fixed video frame number, until adding the watermark of all the serial numbers; and/or adding a watermark representing the unique serial number of the player into the video frame image every other fixed time, until adding the watermark to all the serial numbers. When the movie is pirated, the serial number can be extracted from the watermark added into the video frame image, and the player for playing the movie is determined according to the serial number, thereby determining the cinema in which piracy appears.
Description
Technical field
The invention belongs to the digital movie copyright protection technical field, be specifically related to a kind of method of in digital movie, adding watermark.
Background technology
In today that pirate film is more and more walked crosswise, each big film manufacturer more and more payes attention to the copyright protection of its film.At present; digital movie (refers to digital technology and equipment production, makes storage; and via satellite, physical mediums such as optical fiber, disk, CD transmit; digital signal is reduced into image and the sound that meets the motion picture technique standard; the films and television programs of projection in screen) copyright protection still is in the junior stage, and most of digital movie copyright protections still are by each movie theatre mode such as monitor to be installed voluntarily to prevent that film is by piracy.Yet this sample loading mode prevents that pirate ability is relatively poor, can not prevent film effectively by piracy, and film is in case by pirate, be difficult to determine the responsible party that the process of calling to account is very complicated and loaded down with trivial details, and efficient is very low.
Digital watermarking (Digital Watermarking) technology is that some identification informations (being digital watermarking) are directly embedded in the middle of the digital carrier (comprising multimedia, document, software etc.), but do not influence the use value of original vector, be not easy to be perceiveed by people's consciousness system (as vision or auditory system) or notice yet.Be hidden in information in the carrier by these, can reach and confirm creator of content, buyer, transmission secret information or judge whether carrier purpose such as is distorted.Digital watermarking has following characteristics:
Fail safe: the information of digital watermarking should be safe, is difficult to distort or forge, and simultaneously, lower false detection rate should be arranged, and when raw content changed, digital watermarking should change, thereby can detect the change of initial data; Certainly digital watermarking is equally to repeating to be added with strong repellence.
Disguised: digital watermarking should consciousness, and should not influence the normal use of protected data, can not degrade.
Robustness: refer to that digital watermarking still can the retaining part integrality also can accurately be differentiated behind the multiple signal processing that is not intended to or has a mind to of experience.Possible signal processing comprises interchannel noise, filtering, D/A and mould/number conversion, resampling, shearing, displacement, dimensional variation and lossy compression method coding etc.
In view of digital watermarking has These characteristics, if the unique number of playing the player of film is added in the film in the digital watermarking mode, then can the confirmation of responsibility of film piracy be brought convenience undoubtedly.
Summary of the invention
At the defective that exists in the prior art, the purpose of this invention is to provide a kind of method of in digital movie, adding watermark, this method can effectively be protected the film copyright.
To achieve these goals, the technical solution used in the present invention is: a kind of method of adding watermark in digital movie, this method is in the digital movie playing process, circulation is added the unique number of playing the player of this digital movie in the video frame images in the watermark mode, the process of adding a watermark in the video frame images is: add the watermark of a player unique number of expression every the fixed video frame number at a video frame images, up to the watermark of having added all bit numbers; With the watermark in a player unique number of a video frame images interpolation expression every the set time, up to the watermark of having added all bit numbers;
May further comprise the steps in the detailed process that a video frame images adds the watermark of a player unique number of expression every the fixed video frame number:
(1) converts the player unique number to the binary system ASCII character;
(2) select the color line of gray scale between 50% to 80%, its width is 3 to 5 pixel lines, highly is the video frame images height;
(3) read the binary system ASCII character of a player according to the order of sequence every Z video frame images, if this binary system ASCII character is 1, then the color line is added on video frame images left hand edge or the right hand edge in translucent mode; If this binary system ASCII character is 0, then do not add the color line; Wherein, 3≤Z≤10.Preferably, Z=5.
May further comprise the steps in the detailed process that a video frame images adds the watermark of a player unique number of expression every the set time:
(a) determine a rectangular area at place, video frame images centre position, and this zone is divided into the matrix of 4 row, 3 row; Adopt 0 to 90 numeral that described matrix element scope is numbered respectively, wherein the numbering of 3 matrix element scopes is identical;
(b) unique number with player converts ASCII character to;
(c) read the ASCII character of a player according to the order of sequence every S minute, occurrence according to this ASCII character adds translucent noise in the elemental range of the corresponding numbering of matrix, if the elemental range of the corresponding numbering of matrix is a plurality of, then in any one elemental range, add translucent noise; Wherein, 3≤S≤5.
Aforesaid method of adding watermark in digital movie, wherein, the scope of the time interval T of circulation is: 10 minutes≤T≤30 minutes.Preferably, T=10 minute or T=15 minute.
Aforesaid method of adding watermark in digital movie, wherein, the matrix area minimum is 90 pixels * 120 pixels.Preferably, matrix area is 300 pixels * 400 pixels.
Aforesaid method of adding watermark in digital movie in the step (c), selects one group to comprise a plurality of kinds, difform noise composition noise sequence, and all noises in the noise sequence are numbered; When adding noise, produce a random number earlier, again the noise numbering noise identical with random number mantissa added in the elemental range of corresponding numbering of matrix.The kind of noise comprises color dot, color lump and vitta.
The method of the invention; by the unique number of film player is added on mode in the video frame images in the watermark mode; when appearring in film, piracy can from film, extract watermark; determine to play the player of this film; and then definite movie theatre that piracy occurs; find the responsible party, thereby realized the effective protection to the film copyright.In addition, in the process that digital movie is play, watermark is made an addition on the frame of video image that has shown, can not destroy or revise the initial data of digital movie.
Description of drawings
Fig. 1 is the method flow diagram that adds a watermark among the embodiment 1 in the video frame images;
Fig. 2 a is the position view that adds watermark among the embodiment 1 in the video frame images; Fig. 2 b is the effect schematic diagram after the interpolation watermark among Fig. 2 a;
Fig. 3 is the method flow diagram that adds a watermark among the embodiment 2 in the video frame images;
Fig. 4 is the position view that adds watermark among the embodiment 2 in the video frame images.
Embodiment
Core concept of the present invention is: in the digital movie playing process, circulation is added the unique number of playing the player of this digital movie in the video frame images in the watermark mode.The process of adding a watermark in the video frame images is: add the watermark of a player unique number of expression every the fixed video frame number at a video frame images, up to the watermark of having added all bit numbers; And/or the watermark in a player unique number of a video frame images interpolation expression every the set time, up to the watermark of having added all bit numbers.When film during by piracy, can numbering by the watermark extracting of adding in the video frame images, determine to play the player of this film according to numbering, and then determine to occur pirate cinema.Below in conjunction with embodiment and accompanying drawing, describe the present invention.
Embodiment 1
Fig. 1 has shown in the present embodiment method flow that adds watermark in the video frame images.This method may further comprise the steps:
(1) converts the player unique number to the binary system ASCII character;
(2) select the color line of gray scale between 50% to 80%, its width is 3 to 5 pixel lines, highly is the video frame images height;
(3) read the binary system ASCII character of a player according to the order of sequence every Z video frame images, if this binary system ASCII character is 1, then the color line is passed through OSD(on-screen display, screen menu type regulative mode) add on the video frame images edge in translucent mode; If be 0, then do not add the color line; Repeat this step, up to all positions of having read player binary system ASCII character.Wherein, 3≤Z≤10 are preferably 5.
Fig. 2 has shown the position that watermark is added on the video frame images.Wherein, zone line 21 is the effective coverage of video frame images, and left area 22 is for adding watermark region.Adding watermark region also can be on other edge of video frame images, be preferably left hand edge or right hand edge, because lower limb has black surround 23 outward on the video frame images generally speaking, add watermark to last lower limb and be found easily, and influence the appreciation effect of film.Add watermark region (being the color line width) size and be advisable with 3 to 5 pixel lines, too little watermark is not easy to identify, is found greatly easily very much.
For example, a film player be numbered VIM080918, converting thereof into the binary system ASCII character is 01,010,110 01,001,001 01,001,101 00,000,000 00,001,000 00,000,000 0,000,100,100,000,001 00001000.When producing player, all write the unique number of this player.The selection gray value is 60% red line, and width is 4 pixel lines, reads a binary system ASCII coding of player every 5 frames.Since the 1st frame, when being played to the 6th frame, read first binary coding of player, be 0, do not add red line; When being played to the 11st frame, read second binary coding of player, be 1, add red line at the image left hand edge, shown in Fig. 2 b; When being played to the 16th frame, read player triad coding, be 0, do not add red line; The rest may be inferred, up to last coding that reads player, is 0, do not add red line.
When for the first time adding watermark in the video frame images, carry out the operation of step (1) and step (2); When after this adding watermark in the video frame images, need not the operation of repeating step (1) and step (2), only the operation of need repeating steps (3) gets final product.
Embodiment 2
Fig. 3 has shown in the present embodiment method flow that adds watermark in the video frame images.This method may further comprise the steps:
(a) determine a rectangular area at place, video frame images centre position, and this zone is divided into the matrix of 4 row, 3 row.Adopt 0 to 90 numeral that described matrix element scope is numbered respectively, wherein the numbering of 3 matrix element scopes is identical, as shown in Figure 4, below the numbering in 3 matrix element zones identical, be 0.Wherein, the rectangular area is not less than 90 pixels * 120 pixels, is not more than the effective range of video frame images, is preferably 300 pixels * 400 pixels.
(b) unique number with player converts ASCII character to.
(c) every S(3≤S≤5) minute read the ASCII character of a player according to the order of sequence, occurrence according to this ASCII character adds translucent noise by OSD in the elemental range of the corresponding numbering of matrix, if the elemental range of the corresponding numbering of matrix is a plurality of, then in any one elemental range, add translucent noise; Repeat this step, up to all positions of having read the player ASCII character.
Wherein, the kind of noise comprises color dot, color lump and vitta etc.In the present embodiment, add multiple kind, difform noise at random, the specific implementation method is: select one group of multiple kind, difform noise to form the noise sequence, and all noises in the noise sequence are numbered; When adding noise, produce a random number earlier, again the noise numbering noise identical with random number mantissa added in the elemental range of corresponding numbering of matrix.Add difform noise at random and can avoid the found probability of watermark that adds effectively.
For example, a film player be numbered VIM080918, converting thereof into ASCII character is 86 73 77 00 08 00 09 01 08.Select 10 to comprise color dot, color lump and 3 types of difform noises composition noise sequences of vitta, numbering is respectively 0 to 9.Read the ASCII character of a player according to the order of sequence every 4 minutes.First bit number is 8, and noise is joined in 8 the matrix element scope of being numbered; Produced random number before adding earlier, the mantissa of supposing random number is 3, then adds to be numbered 3 noise.Second bit number is 6, and noise is joined in 6 the matrix element scope of being numbered; Produced random number before adding earlier, the mantissa of supposing random number is 5, then adds to be numbered 5 noise.The rest may be inferred, up to all positions of having got the player ASCII character.When reading the 5th 0 of player numbering, be numbered 0 matrix element zone owing to there are three, therefore noise can be added to any one and be numbered in 0 the matrix element zone.
Embodiment 3
Present embodiment namely in the film playing process, has both added watermark with adding the method combination of adding watermark described in the method for watermark and the embodiment 2 described in the embodiment 1 at the video frame images edge, added watermark again in the zone line of video frame images.Like this, even place watermark is found, deletes, also can from another watermark, extract the player numbering, thereby increase the fail safe of watermark.
Above embodiment has described the method for adding a watermark in the video frame images.The scope that the time interval T of watermark is added in circulation in the video frame images is: 10 minutes≤T≤30 minutes, be preferably T=10 minute or T=15 minute.After namely adding a watermark, after the time, add a watermark every T again, finish up to movie.
When piracy appears in film, from film, extract watermark, determine to play the player of this film according to the watermark of extracting, and then determine the movie theatre that appearance is pirate, find the responsible party, thereby realized the effective protection to the film copyright.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technology thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. method of in digital movie, adding watermark, it is characterized in that: described method is in the digital movie playing process, circulation is added the unique number of playing the player of this digital movie in the video frame images in the watermark mode, the process of adding a watermark in the video frame images is: add the watermark of a player unique number of expression every the fixed video frame number at a video frame images, up to the watermark of having added all bit numbers; With the watermark in a player unique number of a video frame images interpolation expression every the set time, up to the watermark of having added all bit numbers;
Describedly may further comprise the steps in the detailed process that video frame images adds the watermark of a player unique number of expression every the fixed video frame number:
(1) converts the player unique number to the binary system ASCII character;
(2) select the color line of gray scale between 50% to 80%, its width is 3 to 5 pixel lines, highly is the video frame images height;
(3) read the binary system ASCII character of a player according to the order of sequence every Z video frame images, if this binary system ASCII character is 1, then the color line is added on video frame images left hand edge or the right hand edge in translucent mode; If this binary system ASCII character is 0, then do not add the color line; Wherein, 3≤Z≤10;
It is described that detailed process in the watermark of a player unique number of a video frame images interpolation expression may further comprise the steps every the set time:
(a) determine a rectangular area at place, video frame images centre position, and this zone is divided into the matrix of 4 row, 3 row; Adopt 0 to 90 numeral that described matrix element scope is numbered respectively, wherein the numbering of 3 matrix element scopes is identical;
(b) unique number with player converts ASCII character to;
(c) read the ASCII character of a player according to the order of sequence every S minute, occurrence according to this ASCII character adds translucent noise in the elemental range of the corresponding numbering of matrix, if the elemental range of the corresponding numbering of matrix is a plurality of, then in any one elemental range, add translucent noise, wherein, 3≤S≤5; Select one group to comprise a plurality of kinds, difform noise composition noise sequence, all noises in the noise sequence are numbered, when adding noise, produce a random number earlier, again the noise numbering noise identical with random number mantissa added in the elemental range of corresponding numbering of matrix.
2. method of adding watermark in digital movie as claimed in claim 1, it is characterized in that: the scope of the time interval T of described circulation is: 10 minutes≤T≤30 minutes.
3. method of adding watermark in digital movie as claimed in claim 2 is characterized in that: described T=10 minute or T=15 minute.
4. method of adding watermark in digital movie as claimed in claim 1 is characterized in that: described Z=5.
5. method of adding watermark in digital movie as claimed in claim 1, it is characterized in that: described matrix area minimum is 90 pixels * 120 pixels.
6. method of adding watermark in digital movie as claimed in claim 5, it is characterized in that: described matrix area is 300 pixels * 400 pixels.
7. method of adding watermark in digital movie as claimed in claim 1, it is characterized in that: the kind of described noise comprises color dot, color lump and vitta.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243435 CN101742193B (en) | 2009-12-22 | 2009-12-22 | Method for adding watermark into digital movie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243435 CN101742193B (en) | 2009-12-22 | 2009-12-22 | Method for adding watermark into digital movie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101742193A CN101742193A (en) | 2010-06-16 |
| CN101742193B true CN101742193B (en) | 2013-09-25 |
Family
ID=42464988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910243435 Expired - Fee Related CN101742193B (en) | 2009-12-22 | 2009-12-22 | Method for adding watermark into digital movie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101742193B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731759B (en) * | 2013-12-09 | 2017-03-22 | 乐视网信息技术（北京）股份有限公司 | Watermark adding method and device |
| CN107547556B (en) * | 2017-09-11 | 2020-10-30 | 中国地质大学（武汉） | Robust video watermark embedding and extracting method, device and storage device thereof |
| CN108055567B (en) * | 2017-10-25 | 2020-11-06 | 北京密境和风科技有限公司 | Video processing method and device, terminal equipment and storage medium |
| CN108537053B (en) * | 2017-12-29 | 2020-04-14 | 晋城市大锐金马商务信息咨询有限公司 | Delayed watermark adding technology based on document |
| CN108449626A (en) * | 2018-03-16 | 2018-08-24 | 北京视觉世界科技有限公司 | Video processing, the recognition methods of video, device, equipment and medium |
| CN112040336B (en) * | 2019-06-03 | 2023-03-14 | 中兴通讯股份有限公司 | Method, device and equipment for adding and extracting video watermark |
| CN110267115B (en) * | 2019-06-17 | 2022-04-01 | 东软集团股份有限公司 | Video security control method, device, equipment and medium |
| CN111526388A (en) * | 2020-04-29 | 2020-08-11 | 北京奇艺世纪科技有限公司 | Video playing method and device and video playing control method and device |
| CN111741377A (en) * | 2020-05-19 | 2020-10-02 | 北京奥鹏远程教育中心有限公司 | Video processing method |
| CN113438549A (en) * | 2021-06-22 | 2021-09-24 | 中国农业银行股份有限公司 | Processing method and device for adding watermark to video |
| CN115396699A (en) * | 2022-08-25 | 2022-11-25 | 中央宣传部电影技术质量检测所 | Management method of movie digital watermark and control method of watermark control software |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922883A (en) * | 2004-02-17 | 2007-02-28 | 三菱电机株式会社 | Electronic watermarking method, electronic watermark detecting method, apparatus and program |
| CN1945623A (en) * | 2006-10-26 | 2007-04-11 | 丹东东方测控技术有限公司 | Method for removing visual watermark of block local encrypted digital image |
| CN101447005A (en) * | 2007-11-27 | 2009-06-03 | 美国博通公司 | Method and system for utilizing GPS information to secure digital media |
-
2009
- 2009-12-22 CN CN 200910243435 patent/CN101742193B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922883A (en) * | 2004-02-17 | 2007-02-28 | 三菱电机株式会社 | Electronic watermarking method, electronic watermark detecting method, apparatus and program |
| CN1945623A (en) * | 2006-10-26 | 2007-04-11 | 丹东东方测控技术有限公司 | Method for removing visual watermark of block local encrypted digital image |
| CN101447005A (en) * | 2007-11-27 | 2009-06-03 | 美国博通公司 | Method and system for utilizing GPS information to secure digital media |
| EP2066129A1 (en) * | 2007-11-27 | 2009-06-03 | Broadcom Corporation | Method and system for utilizing GPS information to secure digital media |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101742193A (en) | 2010-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101742193B (en) | Method for adding watermark into digital movie | |
| KR101361591B1 (en) | Covert and robust mark for media identification | |
| US6490355B1 (en) | Method and apparatus for use of a time-dependent watermark for the purpose of copy protection | |
| CN102144237B (en) | Efficient watermarking approaches of compressed media | |
| CN101351822B (en) | Animated image code, apparatus for generating/decoding animated image code, and method thereof | |
| CN101682793B (en) | Creating three dimensional graphics data | |
| AU1317999A (en) | A method for inserting and detecting electronic watermark data into a digital image and a device for the same | |
| US9001272B2 (en) | Image synthesizing device, coding device, program, and recording medium | |
| MXPA02001280A (en) | A scaling independent technique for watermarking images. | |
| CN101473345A (en) | System and method for adding fingerprint into digital video facing object | |
| US20020097891A1 (en) | Electronic watermarking data insertion/detection device | |
| US9626934B2 (en) | Display format using display device for machine-readable dot patterns | |
| US10250900B2 (en) | Systems and methods for embedding metadata into video contents | |
| US7886337B2 (en) | Method and apparatus for content protection | |
| CN103248898A (en) | Adding and extracting method for digital watermark and device thereof | |
| US7831060B2 (en) | Method for protecting content of vector graphics formats | |
| JP2000165641A (en) | Image processing method, image processing unit and data storage medium | |
| CN109474830A (en) | A kind of insertion and extracting method of digital video steel seal | |
| CN105100544A (en) | Video information display method and system | |
| CA2654504C (en) | System and method for analyzing and marking a film | |
| CN1173559C (en) | Method and apparatus for compression compatible video finger printing | |
| CN105898459A (en) | Play method and device and mobile terminal equipment based on Android platform | |
| Kojima et al. | Visible video data hiding techniques based on visual effects utilizing barcodes | |
| US20090161909A1 (en) | Method of dynamically showing a water mark | |
| CN117940949A (en) | Encryption image watermarking method and device and display 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI VIMICRO CO., LTD. Free format text: FORMER OWNER: BEIJING ZHONGXING MICROELECTRONICS CO., LTD. Effective date: 20110402 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 15/F, SHINING BUILDING, NO. 35, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 214028 610, NATIONAL INTEGRATED CIRCUIT DESIGN PARK (CHUANGYUAN BUILDING), NO. 21-1, CHANGJIANG ROAD, WUXI NEW DISTRICT, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110402 Address after: 214028 national integrated circuit design (21-1), Changjiang Road, New District, Jiangsu, Wuxi, China, China (610) Applicant after: Wuxi Vimicro Co., Ltd. Address before: 100083, Haidian District, Xueyuan Road, Beijing No. 35, Nanjing Ning building, 15 Floor Applicant before: Beijing Vimicro Corporation |
|
| 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: 20130925 Termination date: 20181222 |