CN1337808A - Multimedia web site spliting and reconstructing method - Google Patents

Multimedia web site spliting and reconstructing method Download PDF

Info

Publication number
CN1337808A
CN1337808A CN01141419A CN01141419A CN1337808A CN 1337808 A CN1337808 A CN 1337808A CN 01141419 A CN01141419 A CN 01141419A CN 01141419 A CN01141419 A CN 01141419A CN 1337808 A CN1337808 A CN 1337808A
Authority
CN
China
Prior art keywords
webpage
customer
multimedia
file
pseudo
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.)
Granted
Application number
CN01141419A
Other languages
Chinese (zh)
Other versions
CN1182682C (en
Inventor
李晓明
王冲
王韬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University Asset Management Company Limited
Original Assignee
Peking University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Peking University filed Critical Peking University
Priority to CNB011414197A priority Critical patent/CN1182682C/en
Publication of CN1337808A publication Critical patent/CN1337808A/en
Application granted granted Critical
Publication of CN1182682C publication Critical patent/CN1182682C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Information Transfer Between Computers (AREA)

Abstract

The present invention discloses a multimedia web station separation and reproduction method, the separation includes the steps: making all the files of web station undergo the process of relative treatment, dividing result into two portions, one portion of them is the files placed in customer side, they are enciphered compressed multimedia raw material which can not be directly browsed, and the other portion is the pseudo-web pages which are remained in the server end and obtain after the orginal HTML web page document being in web station is modified. The reproduction in cludes the following steps: wehn a user uses computer with above-mentioned first portion contents to access the web station contaiing the above-mentioned second portion contents, the related pseudo web page can be automatically treated to produce formed web page document, then the deciphering decompression program is used to read out multimedia raw material stored in the customer side and make deciphering decompression so as to produce complete web page which can be correctly browsed by browsing device of customer side and its behavior is identical to that of original web page.

Description

The fractionation of multimedia web site and replay method
Technical field:
The invention belongs to technical field of the computer network, relate in particular to the effective application of the Internet and the protection of internet resource.
Background technology:
Along with the arriving of cybertimes, people enjoy the facility that network brings to people more and more.One of glamour of the Internet just is that each website with the form tissue of abundant multimedia material by webpage, browses use for people, and this also is the Internet in one of major reason of whole world rise.
The multimedia material of conventional web sites is placed on the server of website, and when webpage that the user browses web sites, the Internet-browser of subscriber computer downloads to the webpage html document that leaves in the server in the subscriber computer earlier, shows according to this html document; If this is webpage embedded a multimedia material such as image, then these multimedia materials are downloaded to the subscriber computer and show from server one by one; If webpage contains the multimedia link, then when the user clicked this link, at first the multimedia material with link downloaded in the subscriber computer from server, and Internet-browser selects proper implements that this multimedia material is reproduced out then.
At present, nearly all website supplier adopts the technology of this form to provide the service of multimedia material to the user, promptly simply in server with various webpages of html document normal structure and multimedia material, make the user be browsed, use these webpages and multimedia material.But this technology exists two main deficiencies:
The first, all html documents and multimedia material that the user desires to browse use all need to pass through the Internet download.Wherein, html document is less usually, so a large amount of network bandwidths is used to the very big multimedia material part of data download amount.If it is little that user's network connects bandwidth, then the plenty of time will be expended.
Second, most Internet-browsers provide will webpage embedded multimedia material and multimedia link the material former state and download to function in the subscriber computer, make the user can under the situation of not surfing the Net, use these multimedia materials, but the website supplier does not wish that the user can use without restriction, even revises, sells these multimedia materials.Therefore, the function that this Internet-browser provides does not obviously meet the needs of intellectual property protection, and the website supplier can only helplessly indicate the intellectual property that is had on webpage, and wishes that the user can consciously observe relevant law.Because people's legal consciousness is not strong at present, the mode of the conscious protection of this user of placing hope on can not fundamentally reach the purpose that protects the intellectual property far away but in fact.
Summary of the invention:
The fractionation and the replay method that the purpose of this invention is to provide a kind of multimedia web site, seldom take the network bandwidth when on the one hand making the user browse the network multimedia material, make only arbitrarily using that the user can't provide the website on the other hand for the multimedia material of browsing use.
Principle of the present invention is that the multimedia material in the website using is separated from the website, through after the ciphered compressed as customer's part (for example putting into CD), and original html document in the website made corresponding modify, make it can correctly quote ciphered compressed and as the multimedia material of customer's part.Like this, the content of original web is split as the data two parts in customer's part and the server.When the user browsed web sites on the computer that customer's part is housed, the material deciphering of the ciphered compressed customer's part being crossed by the deciphering gunzip of downloading from Website server decompressed, and reappears webpage then.In this way, the ciphered compressed material itself in customer's part can't directly use, and the while user also can't decompress the deciphering that shows in Internet-browser multimedia material stores away in addition, uses separately.In this process, on the subscriber computer customer's part must be housed, the visit of also need surfing the Net simultaneously provides the website of customer part, just can browse to the complete webpage that enriches the multimedia material that contains that this website provides.Consider no matter to be website supplier or the user who browses this website, their computer all may be based on different platform, more can generally be suitable for for making method of the present invention, and our invention is based on the general Java technology of each platform.
Concrete technical scheme of the present invention is:
The fractionation of multimedia web site and replay method comprise splitting and reproduction.Fractionation is the whole website of traversal, its content is analyzed, the website is split as two parts: a part is the file among customer's (for example CD), they are the ciphered compressed multimedia materials that itself can't directly use, and another part is the pseudo-webpage that can correctly quote customer's part ciphered compressed multimedia material after the process of server end is revised Central Plains, website html document; Reproduction is that the user is when browsing the website of containing above-mentioned second portion content on the computer that above-mentioned first content is housed, relevant pseudo-webpage is handled automatically, generate formal web document, by the deciphering gunzip that embeds wherein decompression is read and deciphered to customer's multimedia material again, reappear webpage in conjunction with the local html document that generates, this method can't decompress the deciphering that shows the user in Internet-browser multimedia material is kept in the subscriber computer.
In the described split process, when handling a certain file, be divided into three kinds of situations and handle:
(1) if this file is the multimedia material file, then with its encryption, compression and as customer's part, the multimedia material file itself after wherein handling through ciphered compressed can't directly be used;
(2) if this file is the html document in the original web, then it is made amendment, make it can correctly quote ciphered compressed and as the multimedia material of customer's part, and the path of user customer part indicated by Unknowndirectory, such html document is not a webpage truly, but a web page template, we are referred to as pseudo-webpage;
(3) if this file is the file of other kinds, then do not deal with.
It is above-mentioned that html document in the original web is modified as the method for pseudo-webpage is as follows:
(1) at first former html document is done the morphology analysis, obtain html tag;
(2) analyze the character of this label, if quoting of the multimedia material that desire is handled then with this label normalization, and extracted wherein each attribute, these attributes are used to construct the Applet parameter, generate Applet and quote; If not in process range, then former label is not done change;
(3) generate pseudo-webpage.
Described reproduction web page contents concrete grammar is as follows:
(1) handles pseudo-webpage: from the security strategy file of subscriber's local, obtain the path of user customer part (as disc path by a trusted signature small routine Signed Java Applet who embeds in the page during user's Website login, or the user partly is installed to the customer path behind the local hard drive etc.), handle pseudo-webpage again, the Unknowndirectory in the pseudo-webpage is replaced in the path of the customer's part that obtains with Signed Java Applet, obtains formal web document;
(2) reappear by the respective encrypted compressing multimedia material partly of the Signed Java Applet real time decrypting decompression user customer in the embedded web page, and by the form of expression of original web page.
Advantage of the present invention and good effect:
After adopting technique scheme, the content of internet site is split as the data two parts in customer's part and the server.When the user who holds customer part browses web sites, the material deciphering of the ciphered compressed customer's part being crossed by the deciphering gunzip of downloading from Website server decompresses, reappear webpage then, the user needn't expend the plenty of time and download the multimedia material from Website server, thereby the user is browsed contain the speed of multimedia material webpage to be accelerated greatly, save a large amount of network bandwidths.The inventor once did a test, and (with the Modem of 56Kbps) browses a webpage (650KB) that comprises more picture when dialling up on the telephone, and needs 2 minutes times spent; After adopting technical scheme of the present invention to handle, only need 15 seconds, and display effect is without any change, speed is original 8 times.Contained multi-medium data is many more in the webpage of browsing, and effect is obvious more.
Secondly, the ciphered compressed material itself in the user customer part can't directly use, and the multimedia material that shows in Internet-browser can't directly be saved in the subscriber computer, thereby has played the effect that protects the intellectual property.
What deserves to be mentioned is in addition, at present a lot of multimedia CDs HTML form tissue, one of benefit of doing like this is to make CD consistent with the form of website, can make CD content more easily.Here do not have network bandwidth problem certainly, but the user can directly use the original multimedia material in the CD, in addition to its duplicate, diffusion etc.Adopt technical scheme of the present invention, also can handle, can make the user can't directly use multimedia material in the customer part, to reach the effect of protection to this CD.
Description of drawings:
Fig. 1 is the method for splitting flow chart of multimedia web site of the present invention.Among the figure,
A file in the website, 1-location;
2-judges whether the type of file is the multimedia material file;
3-is with multimedia material file ciphered compressed;
4-judges whether the type of file is html document;
The html tag that 5-revises in the html document generates pseudo-webpage;
6-judges whether the file in the website has traveled through;
Multimedia material after 7-will encrypt, compress is as customer's part;
Fig. 2 is the replay method flow chart of multimedia web site of the present invention.Among the figure,
8-handles pseudo-webpage, replaces in the pseudo-webpage with the path of user customer part
Unknowndirectory obtains formal webpage, passes browser back;
9-embeds the small routine deciphering in the page, the multimedia material of decompression user customer part;
10-reappears webpage
Embodiment:
As shown in Figures 1 and 2, present embodiment comprises two parts: the one, and the ciphered compressed of the fractionation of website and multimedia material; The 2nd, the deciphering decompression of multimedia material and the reproduction of webpage.Present embodiment is based on the general Java technology of each platform.
One, the ciphered compressed of the fractionation of website and multimedia material: as shown in Figure 1, travel through whole website, its content is analyzed, the website is split as the pseudo-webpage of server end and multimedia material two parts that customer's ciphered compressed is partly crossed.
When handling a certain file, be divided into three kinds of situations:
1. if this file is the multimedia material file, then with its encryption, compression and as customer's part; Ciphered compressed material itself in customer's part can't directly use; The while user also can't decompress the deciphering that shows in Internet-browser multimedia material stores away in addition, uses separately;
2. if this file is the html document in the original web, need make amendment to it, make it can correctly quote ciphered compressed and as the multimedia material of customer's part.Owing to when reappearing webpage, need determine the path of customer's part at different users, path with user customer part when therefore splitting in the website is indicated by Unknowndirectory, such html document is not a webpage truly, but a web page template, we are referred to as pseudo-webpage.Therefore we will be revised as html document corresponding pseudo-webpage.Amending method is as follows:
(1) at first former html document is done the morphology analysis, obtain html tag;
(2) analyze the character of this label, if quoting of the multimedia material that desire is handled then with this label normalization, and extracted wherein each attribute, these attributes are used to construct the Applet parameter, generate Applet and quote; If not in process range, then former label is not done change;
(3) generate pseudo-webpage.
3., then do not deal with if this file is the file of other kinds.
Two, the reproduction of webpage: as shown in Figure 2
The combine technology of display web page of traditional material with in remote server data and the subscriber computer generally is by the file agreement material in the subscriber computer to be quoted.In this method, the material in the subscriber computer must be a raw data, and can not be the material that ciphered compressed is crossed, and does not have the protection of Intellectual Property Rights of being beneficial to like this.Simultaneously, this is fixedly to write in the web document to quoting of customer's material, does not meet the basic custom that people create the website, and requires the user that material file is placed on a fixed schedule position, thereby can cause inconvenience.The present invention will to be placed on the encryption in the subscriber computer, the material that compressed is handled, and reappears webpage then, and requires to finish this functional programs and subscriber computer platform independence.
By above-mentioned requirements, be different from the file agreement, we use the signature Java Applet (Signed Java Applet) that embeds in the page to finish the encryption in remote server data and the user customer part, the material that compressed combines to reappear webpage.1. handle pseudo-webpage: the path that from the security strategy file of subscriber's local, obtains user customer part during user's Website login by a trusted signature small routine SignedJava Applet who embeds in the page, handle pseudo-webpage again, the Unknowndirectory in the pseudo-webpage is replaced in the path of the user customer part that obtains with Signed Java Applet, obtains formal web document;
2. by the encryption in the Signed Java Applet deciphering decompression user customer part, the multimedia material that compressed
At first, need make Java Applet can read file in the user customer part.But the safeguard construction of Java has certain limitation to the behavior of Applet, and general Applet can't read file in the subscriber computer.In Java 2, the safety behavior of operational system is specified by security strategy, promptly can make its authority, can specify the authority of calling party computer documents here by in security strategy, specifying some code through digital signature with certain system resource of visit.Specify in the strategy file of these security strategies in subscriber computer.Therefore, can read local file, at first need in subscriber computer, dispose and the generation strategy file in order to make Applet.When being operated in user installation customer part, these finish.
3. reproduction webpage
The present invention has changed in the webpage part to the way of reference of multimedia material, for other parts through changing, should be able to correctly be shown by user's Internet-browser certainly.The key of reappearing webpage is to make to handle the performance unanimity that quote the multimedia material front and back.
The present invention handles customer's ciphered compressed material with the Signed Java Applet that embeds in the page, and the data that will decipher after decompressing are reappeared as the multimedia material.Illustrate the quoting method of three kinds of situations below:
(a) img src=Picture-URL form quotes
Adopt Applet to replace picture in the former webpage, this Applet is the demonstration of contracing of the ciphered compressed material deciphering decompress(ion) in the user customer part, and this quoting is called local Applet and quotes;
(b) the href=Picture-URL form quotes
The performance that Internet-browser is quoted this kind form is to open a New Web Browser, shows that in this new window link path is the picture of Picture-URL.Therefore, for this situation, change former link into be linked to the server end that the present invention generates pseudo-webpage, the content of this pseudo-webpage is to be that the local Applet that the picture of Picture-URL carries out quotes to link path;
(c) the href=Audio-URL/Vedio-URL form quotes
Because Java not have comprehensively and the support of unanimity the Voice ﹠ Video file, so audio plays or video file should not be finished by Java Applet.When Internet-browser found that the type of threaded file is the audio or video file, the broadcast instrument of just seeking in the custom system was play this document.We also handle in this way, give browser with the task of seeking the broadcast instrument and finish.Therefore, the ciphered compressed material deciphering in the user customer part is decompressed earlier, generates temporary file, inform that then browser plays this temporary file by Applet, after the broadcast again by Applet deletion this document.
The problem here is: how to inform that browser plays this temporary file.If directly link position is changed into corresponding temporary file position; when the user clicks this link; whether the selection of this document will appear downloading or opening; the user just can learn the position of this temporary file and can select " download " to duplicate this temporary file after having decompressed through deciphering like this, so just can not play the effect of protection.Strategy of the present invention is to quote by html document.In html document, the instrument of will playing is quoted as standard object, and browser is sought the broadcast instrument; In html document, specify the position of temporary file simultaneously.The user can't directly find the position of temporary file like this, just can play the effect of protection.This html document is to generate after the material of deciphering decompression user customer part is finished, the position that so just can learn temporary file, so this is local html document.
For open this html document by Applet, also have a problem here, if in new window, open this html document, will have more an Applet window, make the user feel strange; And if in the same window, open, then be to replace Applet by this html document, the operation of Applet promptly finishes like this, can't delete temporary file when withdrawing from.
The Frame technology among the HTML considered can be synthesized two windows in a window and be shown that the present invention just utilizes Frame to carry out work.Therefore the processing method that this form is quoted the multimedia material is: generate a html document at server end, wherein comprise 2 Frame: the wide of a Frame is 0, and this Frame comprises a Signed Java Applet; Another Frame specifies Frame_Name; SignedJava Applet compresses material with local cipher and is decompressed to temporary file and generates local html document, quotes broadcast instrument object at this this locality html document and plays this temporary file; Signed Java Applet opens this this locality html document in the Frame of Frame_Name by name, when the user leaves this window temporary file is deleted.
More than be how to reappear webpage in conjunction with the multimedia material of server end html document, local html document, customer's part and the Applet of processing local cipher compression material.
Illustrating further when splitting how the html document in the original web to be revised below in conjunction with source code becomes pseudo-webpage.As in the webpage as next section source code:
<td width=″20%″align=center><img  src=″john.jpg″width=″118″height=″180″alt=″John.jpg″></td>
By analysis, the label of embedded picture is arranged wherein during fractionation, therefore this part is revised as:
<td width=″20%″align=center><OBJECT classid=″clsid:8AD9C840-044E-11D1-B3E9-00805F499D93″      width=″118″height=″180″alt=″John.jpg″codebase=      ″http://java.sun.com/products/plugin/1.3/Jinstall-13-      win32.cab#version=1,3,1,0″><PARAM NAME=CODE VALUE=decodel.class><PARAM NAME=ARCHIVE VALUE=″/signedDecode.jar″><PARAM NAME=″type″VALUE=″application/x-java-applet;version=1.3″><PARAM NAME=″stufile″   VALUE=″Unknowndirectory/pppsource/students/john.jtt″><COMMENT><EMBED type=″application/x-java-applet;version=1.3″     java_CODE=decodel.class  archive=″/signedDecode.jar″     width=″118″height=″180″alt=″John.jpg″     stufile=″Unknowndirectory/pppsource/students/john.jtt″pluginspage=″http://java.sun.com/products/plugin/1.3/plugin-install.html″><NOEMBED></COMMENT></NOEMBED></EMBED></OBJECT></td>

Claims (4)

1. the fractionation of multimedia web site and replay method, it is characterized in that, fractionation is the whole website of traversal, its content is analyzed, the website is split as two parts: a part is the file among the customer, they are the ciphered compressed multimedia materials that itself can't directly use, and another part is the pseudo-webpage that can correctly quote customer's ciphered compressed multimedia material after the process of server end is revised Central Plains, website html document; Reproduction is that the user is when browsing the website of containing above-mentioned second portion content on the computer that above-mentioned first content is housed, the pseudo-webpage of relevant server end is handled automatically, generate formal web document, by the deciphering gunzip that embeds wherein decompression is read and deciphered to customer's multimedia material again, reappear webpage in conjunction with the local html document that generates, this method can't decompress the deciphering that shows the user in Internet-browser multimedia material is kept in the subscriber computer.
2. the fractionation of a multimedia web site as claimed in claim 1 and replay method is characterized in that in the split process, when handling a certain file, are divided into three kinds of situations and handle:
(1) if this file is the multimedia material file, then with its encryption, compression and as customer's part, the multimedia material file itself after wherein handling through ciphered compressed can't directly be used;
(2) if this file is the html document in the original web, then it is made amendment, make it can correctly quote ciphered compressed and as the multimedia material of customer's part, and the path of customer part indicated by Unknowndirectory, such html document is not a webpage truly, but a web page template, we are referred to as pseudo-webpage;
(3) if this file is the file of other kinds, then do not deal with.
3. the fractionation of a multimedia web site as claimed in claim 2 and replay method, the method that it is characterized in that the html document in the original web is modified as pseudo-webpage is as follows:
(1) at first former html document is done the morphology analysis, obtain html tag;
(2) analyze the character of this label, if quoting of the multimedia material that desire is handled then with this label normalization, and extracted wherein each attribute, these attributes are used to construct the Applet parameter, generate Applet and quote; If not in process range, then former label is not done change;
(3) generate pseudo-webpage.
4. the fractionation of a multimedia web site as claimed in claim 1 and replay method, it is as follows to it is characterized in that reappearing the web page contents method:
(1) handles pseudo-webpage: the path that from the security strategy file of subscriber's local, obtains customer's part during user's Website login by a trusted signature small routine Signed Java Applet who embeds in the page, handle pseudo-webpage again, the Unknowndirectory that replace in the pseudo-webpage in the path of the customer's part that obtains with Signed Java Applet obtains formal web document;
(2) the multimedia material of crossing by the corresponding ciphered compressed of Signed Java Applet real time decrypting decompression customer in the embedded web page, and reappear by the form of expression of original web page.
CNB011414197A 2001-09-24 2001-09-24 Multimedia web site spliting and reconstructing method Expired - Fee Related CN1182682C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB011414197A CN1182682C (en) 2001-09-24 2001-09-24 Multimedia web site spliting and reconstructing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB011414197A CN1182682C (en) 2001-09-24 2001-09-24 Multimedia web site spliting and reconstructing method

Publications (2)

Publication Number Publication Date
CN1337808A true CN1337808A (en) 2002-02-27
CN1182682C CN1182682C (en) 2004-12-29

Family

ID=4676156

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB011414197A Expired - Fee Related CN1182682C (en) 2001-09-24 2001-09-24 Multimedia web site spliting and reconstructing method

Country Status (1)

Country Link
CN (1) CN1182682C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100366072C (en) * 2003-03-27 2008-01-30 国际商业机器公司 Ultra light browser
CN101448089A (en) * 2007-11-26 2009-06-03 新奥特(北京)视频技术有限公司 Non-linear editing system
CN102982046A (en) * 2011-09-07 2013-03-20 中国移动通信集团公司 Storage method and system for webpage data compression
CN103945348A (en) * 2014-04-25 2014-07-23 长沙市梦马软件有限公司 Asymmetrical secret key short message encryption method and system
CN104714791A (en) * 2013-12-17 2015-06-17 北京掌中经纬技术有限公司 Methods and devices for splitting and reloading Web application
CN105912613A (en) * 2016-04-06 2016-08-31 江苏中威科技软件系统有限公司 Website template quick migration method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100366072C (en) * 2003-03-27 2008-01-30 国际商业机器公司 Ultra light browser
CN101448089A (en) * 2007-11-26 2009-06-03 新奥特(北京)视频技术有限公司 Non-linear editing system
CN101448089B (en) * 2007-11-26 2013-03-06 新奥特(北京)视频技术有限公司 Non-linear editing system
CN102982046A (en) * 2011-09-07 2013-03-20 中国移动通信集团公司 Storage method and system for webpage data compression
CN104714791A (en) * 2013-12-17 2015-06-17 北京掌中经纬技术有限公司 Methods and devices for splitting and reloading Web application
CN104714791B (en) * 2013-12-17 2018-05-04 北京掌中经纬技术有限公司 A kind of method and apparatus that Web applications are split and reset
CN103945348A (en) * 2014-04-25 2014-07-23 长沙市梦马软件有限公司 Asymmetrical secret key short message encryption method and system
CN105912613A (en) * 2016-04-06 2016-08-31 江苏中威科技软件系统有限公司 Website template quick migration method

Also Published As

Publication number Publication date
CN1182682C (en) 2004-12-29

Similar Documents

Publication Publication Date Title
CA2620929C (en) System and method for progressive delivery of multimedia objects
DE60212339T2 (en) A DIGITAL TELEVISION APPLICATION PROTOCOL FOR INTERACTIVE TELEVISION
US10108816B2 (en) Remote data viewer
US20070294333A1 (en) System and method for progressive delivery of multimedia objects
DE602004004335T2 (en) Method and device for the secure provisioning and rights management of digital content by means of document indexing
US20050021539A1 (en) Methods and systems for digital rights management of protected content
US20100138647A1 (en) Encryption scheme for streamed multimedia content protected by rights management system
TW507445B (en) Partitioning of file for emulating streaming
JP5730786B2 (en) Multiple content protection systems in one file
US7975310B2 (en) Offline playback of advertising supported media
US8160154B2 (en) Encoding and decoding methods and systems
US20100281042A1 (en) Method and System for Transforming and Delivering Video File Content for Mobile Devices
CN1783765A (en) System and method for protecting data streams in hardware components
CN1182682C (en) Multimedia web site spliting and reconstructing method
CN1817040A (en) Method of broadcasting multimedia content via a distribution network
CN105072488A (en) Streaming media decryption method and device
CN114282233A (en) WEB performance optimization method and device, computer equipment and storage medium
JPH09167124A (en) Method and system for expression of framed picture of multimedia product
CN109040087B (en) File encryption and decryption method and device
KR100909669B1 (en) How to Play Flash-based Video Content in Web Browsers of Mobile and Embedded Devices
US9113198B2 (en) Computer-implemented method, computer program product and embedded system for displaying overlaid data on an image based on string frequency
CN1462940A (en) Deciphering system and method for a browser
US20070189578A1 (en) Computer-implemented method and system for perceptual cryptography in file-sharing environments
CN1859116A (en) Method and device for obtaining content data packet in DRM
JP2004054521A (en) Data processor and data processing method, recording medium and its computer program

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BEIDA ASSETS MANAGEMENTS CO., LTD.

Free format text: FORMER OWNER: PEKING UNIVERSITY

Effective date: 20061208

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20061208

Address after: 100080, Peking University, 5 Haidian Road, Beijing, Haidian District

Patentee after: Peking University Asset Management Company Limited

Address before: 100871 No. 5, the Summer Palace Road, Beijing, Haidian District

Patentee before: Peking University

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20041229

Termination date: 20160924

CF01 Termination of patent right due to non-payment of annual fee