CN101131676A - Device and method for protecting digital contents and general play using hidden data area - Google Patents
Device and method for protecting digital contents and general play using hidden data area Download PDFInfo
- Publication number
- CN101131676A CN101131676A CNA2006101114931A CN200610111493A CN101131676A CN 101131676 A CN101131676 A CN 101131676A CN A2006101114931 A CNA2006101114931 A CN A2006101114931A CN 200610111493 A CN200610111493 A CN 200610111493A CN 101131676 A CN101131676 A CN 101131676A
- Authority
- CN
- China
- Prior art keywords
- interface
- digital content
- capacity storage
- host apparatus
- portable
- 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.)
- Pending
Links
Images
Abstract
This invention advances a kind of equipment which can protect the digit content using the hiding data area and general play in the storage medium with any form and the method of it. The equipment is characterized in that it includes that: a equipment communication interface which is used to connect this equipment with the external equipment of it and charges the data transmission between them; a equipment controller which includes an encryption/deciphering engine and has an unique identification character, the encryption engine encrypts the digit content by making the unique identification character as the key; a storage medium includes the hiding data area which deciphers the storied and encrypted data content through identifying the unique identification character. This invention also presents a software application program interface and its method which can make the storage equipment general used in the personal computer/ portable type computer, embedded type system, and portable type host computer equipment. This invention equipment and its method can improve the convenient function largely and also has the encryption protect function so it improves the industry utilization largely.
Description
Technical field
The present invention relates to a kind ofly can on any type of storage device, utilize hidden data area to protect the device and method of digital content and universal playing.
Background technology
In recent years,, derive diversified digital content naturally, for example: music, picture, file, film etc. because multimedia miscellaneous is flourish.Again along with the evolution of technology, the shared capacity of above-mentioned digital content also increases day by day, so also increase day by day in order to the media capabilities that stores these digital contents, and after storage volume grows to a certain degree, begin to develop and the portable type Storage Media, until the present carry-on dish of USB, external hard-disk cartridge, discs etc., not only promote the speed of information flow from the earliest 1.2MB disk sheet, also promoted the convenience of data backup and preservation.
Yet, at information back-up easy and velocity of liquid assets fast in, also derived the serious problems that copyrights of data is encroached on, for example common MP3 music does not usually circulate in everywhere because adding any protection and is at random play.
In order to overcome the above problems, a kind of digital copyright management (DigitalRights Management is hereinafter to be referred as DRM) and develop.DRM is a kind of method of protecting content of multimedia to avoid unwarranted broadcast and duplicate.It provides a kind of mechanism, and the supplier of digital content can be used for protecting its privately owned music or other data to avoid bootlegging and use.This technology wherein, can judge whether the user meets the qualification of access or broadcast by service regeulations by digital content being encrypted and additional service regeulations and digital content is protected.
General and the most successful on the market DRM example promptly is the iPod/iTune MP3 player of Apple computer at present.ITune is since the 4th edition function of just introducing iTune Online Music shop, and by allowing the user of iTune buy and download desired song from the shop, these songs can be played on the iPod of the computing machine of limited quantity and unlimited amount.In other words, by the FairPlay DRM system of Apple computer, can prevent successfully that the user from copying the song of being bought voluntarily in the iTune music shop.
But the Online Music that Apple computer provides can only could use on iTune and iPod and speical play device, and thus, the user just has a greatly reduced quality on convenience.
Summary of the invention
In order to overcome the above problems, the present invention proposes a kind ofly can utilize hidden data area to protect the system of digital content and universal playing on any type of Storage Media, and this system comprises at least: host apparatus, portable large capacity storage device and in order to connect both connecting interfaces; Wherein, this host apparatus comprises: the host communication interface, in order to be connected to described connecting interface, be used for and described portable large capacity storage device between carry out data transmission; This portable large capacity storage device comprises: device communication interface, in order to being connected to described connecting interface, be responsible for and described host apparatus between carry out data transmission; Setup Controller is connected to this device communication interface, and includes encryption/decryption functionality, and has unique identifier, and the identifier of this encryption/decryption functionality by described uniqueness carries out the operation of encrypt/decrypt as key to this digital content; And the high capacity Storage Media, be connected to this Setup Controller, and include a hidden data area, come operation that stored encrypted digital content is decrypted by this unique identifier of identification, and play this digital content by this host apparatus.
This Setup Controller also comprises: central processing unit, in order to handle the computing of all internal datas; Interface controller is in order to connect this central processing unit and this device communication interface; Random access memory is connected in this central processing unit, and can store or reading of data is handled or the intermediate result of program; ROM (read-only memory) is connected in this central processing unit, and stores some or all these central processing units required software and firmware; Encryption/decryption engine is connected in this central processing unit, and utilizes described unique identifier to carry out this encryption/decryption functionality; And high capacity Storage Media controller, be connected between this central processing unit and this encryption/decryption engine, in order to carry out the access of this Setup Controller and this high capacity Storage Media.
In addition, this Setup Controller more includes first-in first-out (first-in, first out) internal memory, and it is connected between this central processing unit and this high capacity Storage Media controller, and can be used as the data buffer, in order to accelerate this data processing amount and to strengthen counting yield.
The present invention also provides a kind of and can utilize hidden data area to protect the method for digital content and universal playing on any type of storage device, and it comprises following steps: Connection Step is connected to host apparatus with the portable large capacity storage device; The acquisition step is then carried out a digital content capturing program and is captured this digital content on this host apparatus; Authenticating step, this digital content capturing program can be carried out authentication operation earlier, whether can use this digital content document to differentiate, if authentification failure, the then execution of termination routine; As if authentication success, then capture the digital content document of this hidden area; Connecting step according to the document format of various digital content, is linked to existing multimedia software on this host apparatus automatically; Step display, but demonstrate the played digital content document according to the result who links, and can edit or managing playlist; And the broadcast step, can play this digital content after finishing this playlist.
In addition, the present invention also provides a kind of and can utilize hidden data area to protect the system of digital content and universal playing on any type of Storage Media, it comprises host apparatus, portable large capacity storage device and at least in order to connect both connecting interfaces, wherein, this host apparatus comprises: the host communication interface is connected to connecting interface; The special software interface is connected to this host communication interface, and has multinomial function; And media player, be connected to this special software interface, be used to play this digital content.
Wherein, this host apparatus can be embedded system and portable main machine device.And this special software interface can be carried out and read, writes, deletes, formats, obtains lists of documents, setting property parameters (date of expiration or execution number of times or the like are given the property parameters of digital content), obtain functions such as property parameters, the mutual authentication interface of DRM.
Then, the invention provides and a kind ofly can on any type of storage device, utilize hidden data area to protect the method for digital content and universal playing, it comprises following steps: Connection Step is connected to embedded system or portable main machine device with the portable large capacity storage device; Authenticating step, the special software interface by this host apparatus carries out authentication operation, whether can use this digital content document to differentiate, if authentification failure, the then execution of termination routine; If authentication success then captures this digital content document; Step display, but demonstrate the played digital content document according to authentication result, and can edit or managing playlist; And the broadcast step, can play this digital content after finishing this playlist.
Wherein, this special software interface comprises and reads, writes, deletes, formats, obtains lists of documents, sets property parameters (date of expiration or carry out the property parameters that number of times or the like is given digital content) at least, obtains functions such as property parameters, the mutual authentication interface of DRM.
The present invention more proposes a kind of software API, and this storage device can be play on personal computer/mobile computer, embedded system and portable main machine device generally.
By device and method of the present invention, a kind of playback interface can be provided, can will be decrypted and play with unique identifier of the present invention institute encrypted digital content, but it belongs to Open architecture, so can be used for different host apparatus (for example: personal computer, mobile computer, PDA, mobile phone, home entertainment system etc.), and be not limited to specific device (for example: the iPod of Apple computer and iTune).With regard to convenience, be significantly to promote, and have the defencive function of encryption again concurrently, improved industry applications widely.
Description of drawings
Fig. 1 represents the functional block diagram of personal computer system and portable large capacity storage device.
Fig. 2 represents the system controller of portable large capacity storage device and the details block diagram of high capacity Storage Media.
Fig. 3 represents personal computer system's universal playing process flow diagram.
Fig. 4 represent portable main machine device and embedded system and with the functional block diagram of portable large capacity storage device.
Fig. 5 represents the universal playing process flow diagram of portable main machine device and embedded system.
Embodiment
Followingly with reference to Fig. 1 embodiments of the invention are described, it expresses host apparatus and portable large capacity storage device.
System of the present invention comprises a host apparatus and portable large capacity storage device 20 at least.This host apparatus is contained personal computer/mobile computer 11, embedded system 50, portable main machine device 60, or can handle any device of the stored digital content of portable large capacity storage device 20.This embedded system 50 can be that station (Kiosk) or any embedded system of being controlled by microprocessor are propagated in the access of family audio-visual multimedia entertainment systems, automobile audio-visual multimedia entertainment systems, digital content, and it has the ability that is connected to the portable large capacity storage device.This portable main machine device 60 can be portable music player, portable electronic device (PMP), mobile phone, PDA or any portable main machine device of being controlled by microprocessor, and it has the interface that is connected to the portable large capacity storage device.
All host apparatus all must have the device I/O of main frame I/O interface 16 and portable large capacity storage device 20 to connect 26 to be carried out to both-way communication.Paired both-way communication interface 17 between this host apparatus and this portable large capacity storage device can be serial (RS-232) interface, two-way simultaneous (for example: PS/2, ECP, EPP) interface, USB interface, flash memory (SD, MMC, Compact Flash, Memory Stick or the like) any known or following paired both-way communication interface between interface, live wire (FireWire IEEE 1394) interface, scsi interface, ide interface, SATA interface, PCI fast interface or host apparatus and the peripheral device.In addition, this paired both-way communication interface 17 also can realize with wireless mode, for example: the less radio-frequency of industrial standard (RF) device (for example: IEEE802.11), Wi-Fi standard, bluetooth, less radio-frequency device or infrared transmitting device the device that meets IrDA) or the like (for example: the known or following paired double-direction radio communication interface.
Fig. 2 represents the functional block diagram of portable large capacity storage device 20.Typical portable large capacity storage device 20 comprises Setup Controller 30, device I/O interface 26 and the high capacity Storage Media 40 that possesses microprocessor.Setup Controller 30 is a key player who is playing the part of in the portable large capacity storage device, is used for controlling the transmission operation of this device I/O interface 26, combine digital content-encrypt and deciphering, and control is to the access of this high capacity Storage Media 40.This high capacity Storage Media 40 is used to store this user's data/program and the digital content after this encryption.This high capacity Storage Media 40 can be disk, non-volatile solid-state memory or any other Storage Media that can be used for storing this digital content and can carry out the electronics access with microprocessor.The portable large capacity storage device 20 of this class formation has external connected hand disk, the carry-on dish of USB, SD card, mmc card, CF memory card or the like on the market at present, but these portable large capacity storage devices on the market do not contain the function of digital content being carried out encrypt and decrypt and setting hidden-type data district.
Among this Setup Controller 30, comprised a microprocessing unit (MPU) or the digital signal processor (DSP) 31 of arithmetic capability has more been arranged, in order to calculate and to control this portable large capacity storage device 20.This MPU/DSP 31 utilizes high random access internal memory (RAM) 32 to store or reading of data is handled or the intermediate result of program.ROM (read-only memory) (ROM) but required described software and the firmware of 33 storage compartments or all MPU/DSP of the present invention 31.Data in the instruction of software and firmware and the ROM 33 can be directly from ROM 33 directly carried out or read or temporary earlier to this RAM 32 to accelerate this execution speed.FIFO internal storage 34 can be used as a data buffer, in order to accelerate this data processing amount and to strengthen this counting yield.Each Setup Controller 30 all has a unique identifier 36, and the encrypt and decrypt that is used for this digital content of this encryption/decryption engine 37 as key, to guarantee this digital content of identical portion, can on each portable large capacity storage device 20, carry out different cryptographic operations.Except calculating and control by this MPU/DSP 31, this Setup Controller 30 also needs some extra logical circuits, for example interface controller 38 and high capacity Storage Media controller 35 are with the transmission control of handling this device I/O interface 26 access control with this high capacity Storage Media 40.The above is the main basic function of Setup Controller 30, and when in response to the different system demands of applications, this Setup Controller 30 can derive other needed function.
Fig. 2 has represented the logic configuration structure of this high capacity Storage Media 40.All high capacity Storage Medias 40 can be regarded as memory matrix.In the present invention, this Setup Controller 30 is divided into two nonoverlapping zones in order to store the data of different kenels respectively with memory matrix.The 1st storage area is common program district 41, in order to store digital content capturing program 43 or other user's data or program.This common program district 41 according to the demand of different application, can be readable/writable area territory, or read-only zones; And this data can comprise or not comprise the data of having encrypted.The 2nd storage area is hidden-type data district 46, in order to store encrypted digital content 48.This hidden-type data district 46, it only just can carry out access after successfully carrying out clear and definite mutual authentication mechanism.Concealed document system table 47 is built puts each distribution of encrypted digital content 48 of writing down this hidden-type data district 46.Only after successfully carrying out clear and definite mutual authentication mechanism, but just access or see this concealed document system table 47.By this authentication mechanism and hidden-type data district 46, can avoid digital content unlawfully to be duplicated or use.Both document systems of this common program district 41 and this hidden-type data district 46 are a kind of general FAT document system or other general document system.The main difference in this common program district 41 and this hidden-type data district 46 is the latter only after successfully carrying out clear and definite mutual authentication mechanism, but data and document system that just access should the district.Fail by the user of authentication mechanism, will can't see whole hidden-type data district 46, also just can't unlawfully duplicate or use digital content, and then reach the purpose of DRM.
Fig. 3 represents the universal playing process flow diagram of this portable large capacity storage device 20 on the personal computer system.In order to reach universal playing (is that the user is being with this portable large capacity storage device 20, can on any computing machine, play the digital content in it), in the common program district 41 of this portable large capacity storage device 20, deposit the digital content capturing program 43 of special use of the present invention.This digital content capturing program 43 includes following function: A, carries out the mutual authentication mechanism of DRM; B, acquisition is stored in all digital content documents in this hidden-type data district 46; C links existing multimedia software on this host apparatus (personal computer/mobile computer) 11 automatically; D shows and the managing digital content playlist.Except these basic functions, this digital content capturing program 43 also can comprise other demand in response to different application, and the function that derives.In the process flow diagram of Fig. 3, at first, this portable large capacity storage device 20 is inserted into this host apparatus (personal computer/mobile computer) 11 (steps 101); Then user's digital content capturing program 43 of carrying out special use of the present invention on personal computer/mobile computer is carried out the acquisition (step 102) of digital content; This program can be carried out mutual authentication mechanism earlier, to differentiate this user whether digital content document (step 103) in this hidden-type data district of the legal use of authority 46 is arranged, authentification failure mutually, the execution of warning and termination routine; Mutual authentication success, program continue down to carry out, and acquisition is stored in all digital content documents (step 104) in this hidden-type data district 46; And, be linked to existing multimedia software (step 105) on this host apparatus (personal computer/mobile computer) 11 automatically according to various digital content document format; Afterwards, but demonstrate played digital content document (step 106) according to linking the result; And entering " playlist administrative center " (step 107), the user can edit or manage the playlist of oneself liking in " playlist administrative center "; Can play (step 108) after finishing editor, broadcast returns playlist administrative center after finishing.According to this universal playing process flow diagram, the user is being with this portable large capacity storage device 20, the digital content capturing program of depositing by the common program district 41 in it 43, get final product on any computing machine anywhere, do not need to install again any program, just can play the encrypted digital content in the hidden-type data district 46 in it.
Except general personal computer/mobile computer, portable large capacity storage device 20 of the present invention is also applicable to other portable main machine device or embedded system, to reach the effect of universal playing.
Fig. 4 represent portable main machine device and embedded system and with the functional block diagram of portable large capacity storage device.Different with aforesaid host apparatus (personal computer/mobile computer) 11 is that this portable large capacity storage device 20 is to be connected to embedded system 50 or portable main machine device 60.And this embedded system 50 and portable main machine device 60 all include the access interface that the software API 52 of main frame I/O interface 16, media player 51 and a special use according to the present invention implements, with this portable large capacity storage device 20 of smooth access.And wherein the special-purpose software API 52 of this invention includes following access interface: A, reads; B writes; C, deletion; D, format; E obtains lists of documents; F sets property parameters (date of expiration or execution number of times or the like are given the property parameters of digital content); G obtains property parameters; H, functions such as the mutual authentication interface of DRM.Except these basic access interfaces, the software API 52 of special use of the present invention also can comprise other demand in response to different application, and the access interface that derives.The software API 52 of the special use that provides by this invention; the manufacturer of embedded system 50 or portable main machine device 60 just can carry out design and implementation according to this; allow its embedded system 50 or portable main machine device 60 can read this portable large capacity storage device 20 interior digital content or media document, and play this digital content or media document by this media player 51 with encryption/decryption engine 37 of the present invention and 36 encipherment protections of unique identifier.
Fig. 5 represents the universal playing process flow diagram of portable main machine device and embedded system.At first, this portable large capacity storage device 20 is inserted into this embedded system 50 or portable main machine device 60 (step 201), this host apparatus can carry out mutual authentication mechanism earlier, to differentiate this user whether digital content document (step 202) in this hidden-type data district of the legal use of authority 46 is arranged, mutual authentification failure, warning also finishes the use of device; Authentication success continues down to carry out mutually; But demonstrate played digital content document (step 203); And entering " playlist administrative center " (step 204), the user can edit or manage the playlist of oneself liking in " playlist administrative center "; Can play (step 205) behind the editor, broadcast returns playlist administrative center after finishing.
Utilize portable large capacity storage device 20 of the present invention; except carrying out appropriate protection to digital content; and the systems such as iPod/iTune that are different from Apple computer; with encryption/decryption engine of the present invention and unique identifier institute ciphered data; can can on various host computer system, play by the open special software API that provides.The user also can not be subject to the host apparatus of broadcast except the encrypted digital content in the portable large capacity storage device 20 being with at any time, and its convenience significantly promotes.
Though the present invention provides as above with preferred embodiment, the present invention is defined in this, any technician who is familiar with this technology, and change of being done and retouching without departing from the spirit and scope of the present invention all should be within protection scope of the present invention.
Claims (17)
1. system that utilizes hidden data area to protect digital content and universal playing, it comprises at least: host apparatus, portable large capacity storage device and in order to connect both connecting interfaces;
It is characterized in that this portable large capacity storage device comprises:
Device communication interface, in order to be connected to this connecting interface, be used for and this host apparatus between carry out data transmission;
Setup Controller is connected to this device communication interface, and includes encryption/decryption functionality, and has unique identifier, and this encryption/decryption functionality as key, is carried out the operation of encrypt/decrypt by described unique identifier to this digital content; And
The high capacity Storage Media is connected to this Setup Controller, and includes hidden data area, comes operation that stored encrypted digital content is decrypted by this unique identifier of identification, and plays this digital content by this host apparatus.
2. the system as claimed in claim 1 is characterized in that, this host apparatus comprises the host communication interface, in order to be connected to described connecting interface, be used for and this portable large capacity storage device between carry out data transmission.
3. the system as claimed in claim 1 is characterized in that, this Setup Controller also comprises:
Central processing unit is in order to handle the computing of all internal datas;
Interface controller is in order to connect this central processing unit and this device communication interface;
Random access memory is connected in this central processing unit, and can store or reading of data is handled or the intermediate result of program;
ROM (read-only memory) is connected in this central processing unit, and stores some or all these central processing units required software and firmware;
Encryption/decryption engine is connected in this central processing unit, and utilizes this unique identifier to carry out this encryption/decryption functionality; And
High capacity Storage Media controller is connected between this central processing unit and this encryption/decryption engine, in order to carry out the access of this Setup Controller and this high capacity Storage Media.
4. system as claimed in claim 3 is characterized in that this Setup Controller also includes FIFO internal storage, and it is connected between this central processing unit and this high capacity Storage Media controller, also can be used as the data buffer.
5. the system as claimed in claim 1, it is characterized in that this connecting interface is selected from the following interface that presents in wired mode: serial line interface, two-way simultaneous interface, USB interface, fast-flash memory card, fire-wire interfaces, scsi interface, ide interface, SATA interface, PCI fast interface, paired two-way connecting interface.
6. the system as claimed in claim 1, it is characterized in that this connecting interface is selected from the following array apparatus that presents with wireless mode: the less radio-frequency device of industrial standard, Wi-Fi standard set-up, blue-tooth device, less radio-frequency device, infrared transmitting device, wireless paired two-way connecting interface device.
7. the system as claimed in claim 1 is characterized in that, this high capacity Storage Media is disk, non-volatile solid-state memory, is used for store digital data and can carries out one of Storage Media of electronics access with microprocessor.
8. method of utilizing hidden data area to protect digital content and universal playing, it comprises following steps:
Connection Step is connected to the host apparatus described in the claim 1 with the portable large capacity storage device;
The acquisition step, then combine digital content capturing program captures this digital content on this host apparatus;
Authenticating step, this digital content capturing program can be carried out authentication operation earlier, whether can use this digital content document to differentiate, if authentification failure, the then execution of termination routine; As if authentication success, then capture the digital content document of this hidden area;
Connecting step according to the document format of digital content, is linked to existing multimedia software on this host apparatus automatically;
Step display, but demonstrate the played digital content document according to the result who links, and can edit or managing playlist; And
Play step, play this digital content after finishing this playlist.
9. method as claimed in claim 8 is characterized in that, this digital content capturing program can be carried out following steps at least: authenticating step, connecting step, step display.
10. system that utilizes hidden data area to protect digital content and universal playing, it comprises host apparatus, the portable large capacity storage device described in claim 1 and at least in order to connecting both connecting interfaces,
It is characterized in that this host apparatus comprises:
The host communication interface is connected to this connecting interface, be used for and this portable large capacity storage device between carry out data transmission;
The special software interface is connected to this host communication interface, and has multinomial function; And
Media player is connected to this special software interface, is used to play this digital content.
11. system as claimed in claim 10, it is characterized in that, this host apparatus can be an embedded system, be selected from: the access of family audio-visual multimedia entertainment systems, automobile audio-visual multimedia entertainment systems, digital content propagates the station, by the embedded system that microprocessor is controlled, and it has the ability that is connected to this portable large capacity storage device.
12. system as claimed in claim 10, it is characterized in that, this host apparatus can be the portable main machine device, be selected from: portable music player, portable electronic device, mobile phone, PDA, by the portable main machine device that microprocessor is controlled, it has the ability that is connected to this portable large capacity storage device.
13. system as claimed in claim 10, wherein, this multinomial function comprise read, write, delete, format, obtain lists of documents, set property parameters, obtain property parameters, the function of the mutual authentication interface of DRM.
14. system as claimed in claim 10, it is characterized in that this connecting interface is selected from the following interface that presents in wired mode: serial line interface, two-way simultaneous interface, USB interface, fast-flash memory card, fire-wire interfaces, scsi interface, ide interface, SATA interface, PCI fast interface, paired two-way connecting interface.
15. system as claimed in claim 10, it is characterized in that this connecting interface is selected from the following array apparatus that presents with wireless mode: the less radio-frequency device of industrial standard, Wi-Fi standard set-up, blue-tooth device, less radio-frequency device, infrared transmitting device, wireless paired two-way connecting interface device.
16. a method of utilizing hidden data area to protect digital content and universal playing, it comprises following steps:
Connection Step is connected to host apparatus as claimed in claim 10 with the portable large capacity storage device;
Authenticating step, the special software interface by this host apparatus carries out authentication operation, differentiates and whether can use this digital content document, if authentification failure, the then execution of termination routine; As if authentication success, then capture the digital content document of this hidden area;
Step display, but demonstrate the played digital content document according to authentication result, and can edit or managing playlist; And
Play step, play this digital content after finishing this playlist.
17. method as claimed in claim 16, wherein, this special software interface comprise at least read, write, delete, format, obtain lists of documents, set property parameters, obtain property parameters, the function of the mutual authentication interface of DRM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101114931A CN101131676A (en) | 2006-08-22 | 2006-08-22 | Device and method for protecting digital contents and general play using hidden data area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101114931A CN101131676A (en) | 2006-08-22 | 2006-08-22 | Device and method for protecting digital contents and general play using hidden data area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101131676A true CN101131676A (en) | 2008-02-27 |
Family
ID=39128948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101114931A Pending CN101131676A (en) | 2006-08-22 | 2006-08-22 | Device and method for protecting digital contents and general play using hidden data area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101131676A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145683A (en) * | 2011-03-11 | 2011-08-10 | 广东铁将军防盗设备有限公司 | Video recording instrument of vehicle |
| CN102542211A (en) * | 2010-12-27 | 2012-07-04 | 北京爱国者信息技术有限公司 | Multi-media file protecting system and access method thereof |
| CN102722663A (en) * | 2012-05-16 | 2012-10-10 | 广东欧珀移动通信有限公司 | Handheld smart device data security protection method |
-
2006
- 2006-08-22 CN CNA2006101114931A patent/CN101131676A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542211A (en) * | 2010-12-27 | 2012-07-04 | 北京爱国者信息技术有限公司 | Multi-media file protecting system and access method thereof |
| CN102145683A (en) * | 2011-03-11 | 2011-08-10 | 广东铁将军防盗设备有限公司 | Video recording instrument of vehicle |
| CN102722663A (en) * | 2012-05-16 | 2012-10-10 | 广东欧珀移动通信有限公司 | Handheld smart device data security protection method |
| CN102722663B (en) * | 2012-05-16 | 2015-01-07 | 广东欧珀移动通信有限公司 | Handheld smart device data security protection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100514471C (en) | Method and system of visiting encrypting content on mobile media by device | |
| CN1331125C (en) | System and method for controlling the use and duplication of digital content distributed on removable media | |
| CN100359513C (en) | Information processing appliance and method | |
| CN1312593C (en) | Dispensing system, semiconductor storing card, receiving device, computer readable recording medium and receiving method | |
| TWI429257B (en) | Method, system and article for dynamic authorization of access to licensed content | |
| CN102016863B (en) | Embedded licenses for content | |
| US20050144136A1 (en) | Content providing system and content reproducing apparatus | |
| CN100552690C (en) | Data managing method | |
| US20070265981A1 (en) | Method of transfering rights object and electronic device | |
| CN1985465A (en) | Storage medium processing method, storage medium processing device, and program | |
| US20080103974A1 (en) | Movie key | |
| CN101765845A (en) | System and method for digital content distribution | |
| CN103797488A (en) | Method and apparatus for using non-volatile storage device | |
| CN101266827A (en) | Portable memory apparatus having a content protection function and method of manufacturing the same | |
| TW201426307A (en) | Delivering secured media using a portable memory device | |
| CN112673390B (en) | Platform and method for content management | |
| CN101292292B (en) | Method for etching and secure distribution of digital data, access device and writer | |
| US20120042173A1 (en) | Digital Content and Right Object Management Systems and Methods | |
| JP4592804B2 (en) | Key management device and key management system | |
| CN101131676A (en) | Device and method for protecting digital contents and general play using hidden data area | |
| CN101251880B (en) | System and method for protecting digital data using electronic key | |
| CN101140601A (en) | System and method for protecting digital content and universal playing | |
| US8397303B2 (en) | Memory controller, nonvolatile storage system, and data management method | |
| CN102542181A (en) | Digital content and right article management system and method | |
| AU2006343229B2 (en) | A method for protecting digital content by encrypting and decrypting a memory card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |