CN101860406B - Central processor and mobile multimedia broadcasting device, system and method - Google Patents
Central processor and mobile multimedia broadcasting device, system and method Download PDFInfo
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- CN101860406B CN101860406B CN201010145544.9A CN201010145544A CN101860406B CN 101860406 B CN101860406 B CN 101860406B CN 201010145544 A CN201010145544 A CN 201010145544A CN 101860406 B CN101860406 B CN 101860406B
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Abstract
The invention provides a central processor, a mobile multimedia broadcasting device, a mobile multimedia broadcasting system and a mobile multimedia broadcasting method. A server, according to the second identifier information and authentication request of the mobile multimedia broadcasting device, authenticates the mobile multimedia broadcasting device to determine if the mobile multimedia device is qualified to acquire a service key; the server generates an encrypted second service key according to the authentication request and second service information which are output by the central processor, and outputs the encrypted second service key to the central processor in the mobile multimedia device; the central processor decrypts the encrypted second service key first and then triggers a channel demodulating unit according to the decrypted second service key so as to acquire second service data; and the central processor uses the decrypted second service key to decrypt the second service data so as to decrypt and play encrypted mobile multimedia service data in real time. The device, the system and the method of the invention can improve the real-time and flexibility of a mobile multimedia service.
Description
Technical field
The present invention relates to electronic information technology, particularly the device of a kind of central processing unit, Mobile Multimedia Broadcasting, system and method.
Background technology
Along with the development of multimedia reception play-back technology, multimedia receiving system be not limited to cable networks such as utilizing cable light realize multimedia service reception play, the mobile multimedia broadcast system being installed in the mobile terminals such as public transport, subway, mobile phone can pass through the wireless networks such as wireless digital broadcasting multimedia network (DMB), cellular mobile communications networks, realize the reception of multimedia service and play, greatly met the demand that user watches whenever and wherever possible.
Fig. 1 is the structural representation of existing mobile multimedia broadcast system.Now, in conjunction with Fig. 1, the structure of existing mobile multimedia broadcast system is described, specific as follows:
Existing mobile multimedia broadcast system comprises: control unit 101, channel demodulation unit 102, radio-frequency tuner 103, radio-frequency antenna 104 and source coding unit 105.Wherein, control unit 101 is connected with outside display, the information relevant to multimedia service and result of broadcast thereof such as exportable multimedia service list, sound, contrast, color, brightness, control unit 101 receives the design parameter corresponding to above-mentioned information of the selected multimedia service of user and setting; Control unit 101 is exported control command to channel demodulation unit 102, triggers channel demodulation unit 102 demodulation mobile multi-media service data; Radio-frequency tuner 103 processes to the radiofrequency signal of all multimedia services that receive from radio-frequency antenna 104 intermediate-freuqncy signal that obtains all multimedia services under the control of channel demodulation unit 102, and output intermediate-freuqncy signal is to channel demodulation unit 102; Channel demodulation unit 102, under control unit 101 is controlled, carries out demodulation to the intermediate-freuqncy signal of all multimedia services and obtains all multimedia service datas, and the multimedia service data after output demodulation is to control unit 101; Control unit 101 utilizes the selected multimedia service data of user extracting in the multimedia service data of the selected multimedia service information of user from demodulation, and exports the selected multimedia service data of user to source coding unit 105; Decoding to the selected multimedia service data of user in source coding unit 105, exports the audio/video flow obtaining after decoding to control unit 101; Control unit 101 output sound video flowings.
In order to meet the demand of different user, existing mobile multi-media service generally includes the mobile multi-media service of unencrypted mobile multi-media service and encryption; Unencrypted mobile multi-media service can be play for the device of existing all Mobile Multimedia Broadcasting, and the mobile multi-media service of encrypting can be play for the device of the Mobile Multimedia Broadcasting that deciphering lock has been installed, and after the unlocking pin on the cipher card that the device that the Mobile Multimedia Broadcasting of deciphering lock has been installed is inputted acquisition user, could be decrypted broadcasting to the mobile multi-media service of encrypting.Due to the frequency difference of domestic each regional video playback, there is certain region in mobile multi-media service, and each regional cipher card is only applicable to the mobile multi-media service of the encryption of this area; Such as: after the deciphering lock that user installs the device of Mobile Multimedia Broadcasting at use Pekinese, Beijing cipher card is decrypted, user only can play the mobile multi-media service of the encryption of locality, Beijing; When user is during in Shanghai, user cannot play the local mobile multi-media service of encrypting in Shanghai by the device of the Mobile Multimedia Broadcasting of deciphering lock has been installed, if user wishes to play the local mobile multi-media service of encrypting in Shanghai, need to the cipher card in device input Shanghai of Mobile Multimedia Broadcasting that deciphering lock has been installed, again the deciphering lock of having installed in the device of Mobile Multimedia Broadcasting of deciphering lock is decrypted.
Although the device that the Mobile Multimedia Broadcasting of deciphering lock has been installed existing can be decrypted broadcasting to the mobile multi-media service of encrypting, but when user is during in different regions, need user to input each regional cipher card, continually the device of the Mobile Multimedia Broadcasting that deciphering lock has been installed is carried out to unlocking operation, operation is comparatively complicated, can not be decrypted broadcasting to the mobile multi-media service of encrypting in real time, and can not customize flexibly the mobile multi-media service of encrypting according to user's demand.
Summary of the invention
In view of this, the technical problem that the present invention solves is to provide a kind of central processing unit, and this processor can be play the mobile multi-media service of encryption, the flexibility that has improved mobile multi-media service in real time.
The technical problem that the present invention solves is to provide a kind of device of Mobile Multimedia Broadcasting, and this device can be play the mobile multi-media service of encryption, the flexibility that has improved mobile multi-media service in real time.
The technical problem that the present invention solves is to provide a kind of system of Mobile Multimedia Broadcasting, and this system can be play the mobile multi-media service of encryption, the flexibility that has improved mobile multi-media service in real time.
The technical problem that the present invention solves is to provide a kind of method of Mobile Multimedia Broadcasting, and the method can be play the mobile multi-media service of encryption, the flexibility that has improved mobile multi-media service in real time.
For achieving the above object, technical scheme of the present invention is specifically achieved in that
A kind of central processing unit, this processor is connected with channel demodulation unit, source coding unit and the first memory cell respectively;
Described central processing unit, for reading the second identification information according to the enabled instruction from user input from the first memory cell, to outside server authentication output request and the second identification information of reading from the first memory cell; Also, for receiving authentication response and the business information list of described server output, export described business information list; Wherein, described the second identification information is the information of the device identity for representing Mobile Multimedia Broadcasting; Described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
For according to the second business information, to described server output authentication request and described the second business information, receive the Authentication Response of described server output and the second business cipher key of encryption; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user, and described the second business cipher key is the business cipher key for deciphering the second business datum;
For the second business cipher key of described encryption is decrypted, to described channel demodulation unit, receive the second business datum after described channel demodulation cell processing according to the second business cipher key output control command after deciphering; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user;
For utilizing the second business cipher key after deciphering to be decrypted the second business datum receiving, output the 3rd business datum, to source coding unit, is exported the audio/video flow of described source coding unit feedback; Wherein, described the 3rd business datum is the data that obtain after deciphering the second business datum.
In above-mentioned processor, this processor comprises: baseband chip, the first control unit and authenticating unit; Wherein, described the first control unit is connected with described authenticating unit and described baseband chip respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, exports described the second identification information and described authentication request to described server; For exporting the authentication response and extremely described the first control unit of business information list that obtain from described server;
Described the first control unit, for according to the response of the authentication success receiving, exports described business information list; Receive the response of authentification failure for basis, authentication output failed message; Be used for exporting the second business information and authentication request to described baseband chip;
Described baseband chip, for export described authentication request and described the second business information to described server, exports the second business cipher key of the Authentication Response obtaining from described server and encryption to described the first control unit;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, the second business cipher key after output deciphering;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key after deciphering; For receiving the second business datum after described channel demodulation cell processing; For utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit; For exporting the audio/video flow after described source coding unit decodes.
Preferably, described central processing unit further, after business information list described in output display, for according to the 5th business information, customizes request, described the 5th business information and the second identification information to described server output; Obtain customized responses and described the 5th business information for basis from described server, using described the 5th business information as the second business information;
Described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user.
In above-mentioned processor, this processor comprises: baseband chip, the first control unit and authenticating unit; Wherein, described the first control unit is connected with described authenticating unit and described baseband chip respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading described the second identification information according to the described authentication request receiving from described the first memory cell, exports described the second identification information and described authentication request to described server; For exporting the authentication response and extremely described the first control unit of business information list that obtain from described server;
Described the first control unit, for according to the response of the authentication success receiving, exports described business information list; Receive the response of authentification failure for basis, authentication output failed message; For according to the 5th business information, export customization request and described the 5th business information to described baseband chip;
Described baseband chip, for reading described the second identification information according to the described customization request receiving from described the first memory cell, exports described the second identification information, described the 5th business information and described customization request to described server; For exporting the customized responses and extremely described the first control unit of described the 5th business information that obtain from described server;
Described the first control unit, customizes failed message and the 5th business information for the response output according to the customization failure receiving; For successfully responding according to the customization receiving, using described the 5th business information as the second business information, export described the second business information and authentication request to described baseband chip;
Described baseband chip, for export described authentication request and described the second business information to described server, exports the second business cipher key of the Authentication Response obtaining from described server and encryption to described the first control unit;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, the second business cipher key after output deciphering;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key after described deciphering; For receiving the second business datum after described channel demodulation cell processing; For utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit; For exporting the audio/video flow after described source coding unit decodes.
In above-mentioned processor, described the first control unit is arm processor; Be connected with described authenticating unit by 7816 interfaces; Be connected with described baseband chip by HIF interface.
A kind of device of Mobile Multimedia Broadcasting, this device comprises: channel demodulation unit, radio-frequency tuner, radio-frequency antenna and source coding unit, and this device also comprises: for the central processing unit of storing the first memory cell of the second identification information and being connected with channel demodulation unit, source coding unit and the first memory cell;
Described central processing unit, for reading the second identification information according to the enabled instruction of inputting from user from the first memory cell, to outside server authentication output request and described the second identification information, receive authentication response and the business information list of described server output, export described business information list; Wherein, described the second identification information is the information of the device identity for representing described Mobile Multimedia Broadcasting; Described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
For according to the second business information, to described server output authentication request and described the second business information, receive the Authentication Response of described server output and the second business cipher key of encryption; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user, and described the second business cipher key is the business cipher key for deciphering the second business datum;
For the second business cipher key deciphering to described encryption, to described channel demodulation unit, receive the second business datum after described channel demodulation cell processing according to the second business cipher key output control command after deciphering; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user;
For utilizing the second business cipher key after described deciphering to be decrypted described the second business datum receiving, output the 3rd business datum, to source coding unit, is exported the audio/video flow of described source coding unit feedback; Wherein, described the 3rd business datum is the data that obtain after deciphering the second business datum.
In said apparatus, described central processing unit comprises: baseband chip, the first control unit and authenticating unit; Wherein, described the first control unit is connected with described baseband chip and described authenticating unit respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, export described the second identification information and described authentication request to described server, for exporting the authentication response and extremely described the first control unit of business information list that obtain from described server;
Described the first control unit, for according to the response of the authentication success receiving, export described business information list, the response of the authentification failure receiving for basis, authentication output failed message, for exporting the second business information and authentication request to described baseband chip;
Described baseband chip, for export described authentication request and described the second business information to described server, exports the second business cipher key of the Authentication Response obtaining from described server and encryption to described the first control unit;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, the second business cipher key after output deciphering;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key after described deciphering, for receiving the second business datum after described channel demodulation cell processing, for utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit, for exporting the audio/video flow after described source coding unit decodes.
Preferably, described central processing unit is further after business information list described in output display, be used for according to the 5th business information, to described server output customization request, described the 5th business information and the second identification information, obtain customized responses and described the 5th business information for basis from described server, using described the 5th business information as the second business information;
Described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user.
In said apparatus, described central processing unit comprises: baseband chip, the first control unit and authenticating unit; Wherein, described the first control unit is connected with described baseband chip and described authenticating unit respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading described the second identification information according to the described authentication request receiving from described the first memory cell, export described the second identification information and described authentication request to described server, for exporting the authentication response and extremely described the first control unit of business information list that obtain from described server;
Described the first control unit, the response of the authentication success receiving for basis, export described business information list, the response of the authentification failure receiving for basis, authentication output failed message, for according to the 5th business information, export customization request and described the 5th business information to described baseband chip;
Described baseband chip, for reading described the second identification information according to the described customization request receiving from described the first memory cell, export described the second identification information, described the 5th business information and described customization request to described server, for exporting the customized responses and extremely described the first control unit of described the 5th business information that obtain from described server;
Described the first control unit, customize failed message and described the 5th business information for the response output according to the customization failure receiving, for successfully responding according to the customization receiving, using described the 5th business information as the second business information, export described the second business information and authentication request to described baseband chip;
Described baseband chip, for export described authentication request and described the second business information to described server, exports the second business cipher key of the Authentication Response obtaining from described server and encryption to described the first control unit;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, the second business cipher key after output deciphering;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key after described deciphering, for receiving the second business datum after described channel demodulation cell processing, for utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit, for exporting the audio/video flow after described source coding unit decodes.
Preferably, this device further comprises the user interaction unit being connected with central processing unit;
The audio/video flow of described central processing unit output is exported to user by described user interaction unit; The information of user's input is exported to described central processing unit.
In said apparatus, described channel demodulation unit, for receiving the control command of described the first control unit output, controls described radio-frequency tuner and carries out frequency modulation processing, for the intermediate-freuqncy signal receiving is carried out to demodulation, the second business datum after output demodulation is to described the first control unit;
Described radio-frequency tuner, under the control in described channel demodulation unit, the radiofrequency signal of the mobile multi-media service that described radio-frequency antenna is received is carried out frequency modulation processing, and output intermediate-freuqncy signal is to described channel demodulation unit;
Described radio-frequency antenna, for receiving the radiofrequency signal of described mobile multi-media service;
Described source coding unit, for the 3rd business datum of described the first control unit output is decoded, output sound video flowing is to described the first control unit.
In said apparatus, described the first control unit is arm processor; Be connected with described authenticating unit by 7816 interfaces; Be connected with described baseband chip by HIF interface.
A system for Mobile Multimedia Broadcasting, this system comprises: the device of server and Mobile Multimedia Broadcasting; The device of Mobile Multimedia Broadcasting comprises: for storing the first memory cell, central processing unit, channel demodulation unit, radio-frequency tuner, radio-frequency antenna and the source coding unit of the second identification information; Wherein, described central processing unit is connected with described server, described the first memory cell and described channel demodulation unit respectively;
Described central processing unit, for reading the second identification information according to the enabled instruction of inputting from user from the first memory cell, to the request of described server authentication output and described the second identification information; Wherein, described the second identification information is the information of the device identity for representing described Mobile Multimedia Broadcasting;
Described server, for authenticating according to the described authentication request and described the second identification information that receive, to described central processing unit authentication output response and business information list; Wherein, described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
Described central processing unit, for export described business information list according to the response of described authentication success, for according to the second business information, exports authentication request and described the second business information to described server; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user;
Described server, for generating according to described authentication request and described the second business information the second business cipher key of encrypting, the second business cipher key of output Authentication Response and described encryption is to described central processing unit;
Described central processing unit, is decrypted for the second business cipher key to described encryption; For according to the second extremely described channel demodulation unit of business cipher key output control command after deciphering, receive the second business datum after described channel demodulation cell processing; For utilizing the second business cipher key after described deciphering to be decrypted the second business datum receiving, output the 3rd business datum, to source coding unit, is exported the audio/video flow of described source coding unit feedback; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user; Described the 3rd business datum is the data that obtain after deciphering the second business datum; Described the second business cipher key is the business cipher key for deciphering the second business datum.
In said system, described central processing unit comprises: baseband chip, the first control unit and authenticating unit, and described server comprises the second control unit and for storing the second memory cell of the first identification information and business information list; Wherein, described the first control unit is connected with described baseband chip and described authenticating unit respectively; Described baseband chip is connected with described the first memory cell; Described the second control unit is connected with described baseband chip and described the second memory cell respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, exports described the second identification information and described authentication request to described server;
Described the second control unit, for reading the first identification information from described the second memory cell, judge whether authentication success according to described the first identification information and described the second identification information, the described business information list that responds and read from described the second memory cell to described baseband chip authentication output;
Described baseband chip, for exporting described authentication response and described business information list to described the first control unit;
Described the first control unit, for according to the response of the authentication success receiving, export described business information list, the response of the authentification failure receiving for basis, authentication output failed message, for exporting the second business information and authentication request to described baseband chip;
Described baseband chip, for exporting described authentication request and described the second business information to described the second control unit;
Described the second control unit, for according to described the second business information and the authentication request that receive, generates the second business cipher key of encrypting, to the second business cipher key of described baseband chip output Authentication Response and described encryption;
Described baseband chip, for exporting the second business cipher key and extremely described first control unit of Authentication Response of described encryption;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, and the second business cipher key after output deciphering is to described the first control unit;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key of described deciphering, for receiving the second business datum after described channel demodulation cell processing, for utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit, for exporting the audio/video flow after described source coding unit decodes.
Preferably, described central processing unit further, after business information list described in output display, for according to the 5th business information, customizes request, described the 5th business information and the second identification information to described server output; Wherein, described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user;
Described server is further used for according to the described customization request receiving, described the 5th business information and the second identification information customization the 5th business, to described central processing unit output customized responses and described the 5th business information;
Described central processing unit is further used for according to the response of the customization failure receiving, and output customization failed message and described the 5th business information, for successfully responding according to the customization receiving, using described the 5th business information as the second business information.
In said system, described central processing unit comprises: baseband chip, the first control unit and authenticating unit, and described server comprises the second memory cell, the second control unit and the customization units for storing the first identification information and business information list; Wherein, described the first control unit is connected with described baseband chip and described authenticating unit respectively, described baseband chip is connected with described the first memory cell, and described the second control unit is connected with described the second memory cell, described customization units and described baseband chip respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, exports described the second identification information and described authentication request to described server;
Described the second control unit, for reading the first identification information from described the second memory cell, judge whether authentication success according to described the first identification information and described the second identification information, the described business information list that responds and read from described the second memory cell to described baseband chip authentication output;
Described baseband chip, for exporting described authentication response and described business information list to described the first control unit;
Described the first control unit, the response of the authentication success receiving for basis, export described business information list, the response of the authentification failure receiving for basis, authentication output failed message, for according to the 5th business information, export customization request and described the 5th business information to described baseband chip;
Described baseband chip, for reading described the second identification information according to the described customization request receiving from described the first memory cell, exports described the second identification information, described the 5th business information and described customization request to described the second control unit;
Described the second control unit, for exporting described the second identification information, described the 5th business information and customization request to described customization units;
Described customization units, whether for customizing successfully according to described the 5th business information and described the second identification information judgment, output customized responses, described the 5th business information and described the second identification information are to described the second control unit;
Described the second control unit, for export the described customized responses and described the 5th business information that receive to described baseband chip, and receiving after the successful response of customization, exports described the second identification information to described the second cell stores;
Described baseband chip, for exporting described customized responses and described the 5th business information to described the first control unit;
Described the first control unit, customize failed message and described the 5th business information for the response output according to the customization failure receiving, for successfully responding according to the customization receiving, using described the 5th business information as the second business information, export described the second business information and authentication request to described baseband chip;
Described baseband chip, for exporting described authentication request and described the second business information to described the second control unit;
Described the second control unit, for according to described the second business information and the authentication request that receive, generates the second business cipher key of encrypting, to the second business cipher key of described baseband chip output Authentication Response and described encryption;
Described baseband chip, for exporting the second business cipher key and extremely described first control unit of Authentication Response of described encryption;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, and the second business cipher key after output deciphering is to described the first control unit;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key of described deciphering, for receiving the second business datum after described channel demodulation cell processing, for utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit, for exporting the audio/video flow after described source coding unit decodes.
In said system, described channel demodulation unit, for receiving described control command, controls described radio-frequency tuner and carries out frequency modulation processing, and for the intermediate-freuqncy signal receiving is carried out to demodulation, the second business datum after output demodulation is to described the first control unit;
Described radio-frequency tuner, under the control in described channel demodulation unit, the radiofrequency signal of the mobile multi-media service that described radio-frequency antenna is received is carried out frequency modulation processing, and output intermediate-freuqncy signal is to described channel demodulation unit;
Described radio-frequency antenna, for receiving the radiofrequency signal of described mobile multi-media service;
Described source coding unit, for described the 3rd business datum is decoded, output sound video flowing is to described the first control unit.
In said system, described the first control unit is arm processor; Be connected with described authenticating unit by 7816 interfaces; Be connected with described baseband chip by HIF interface.
Preferably, the second control unit of described server further upgrades according to the cycle setting in advance the second business cipher key of encrypting.
Preferably, this system further comprises the user interaction unit being connected with central processing unit;
The audio/video flow of described central processing unit output is exported to user by described user interaction unit; The information of user's input is exported to described central processing unit.
A method for Mobile Multimedia Broadcasting, the method comprises:
Central processing unit in the device of A, Mobile Multimedia Broadcasting is according to reading the second identification information from the enabled instruction of user's input from the first memory cell, to the request of server authentication output and the second identification information; Wherein, described the second identification information is the information of the device identity for representing described Mobile Multimedia Broadcasting;
B, described server, according to described the second identification information and the described authentication request that receive, authenticate the device of described Mobile Multimedia Broadcasting, to described central processing unit authentication output response and business information list; Wherein, described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
C, described central processing unit are exported described business information list, and according to the second business information, to described server output authentication request and described the second business information; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user;
D, described server generate according to described authentication request and described the second business information the second business cipher key of encrypting, export the second business cipher key and the Authentication Response of described encryption to described central processing unit;
E, described central processing unit are decrypted the second business cipher key of described encryption, obtain the second business datum according to the second business cipher key control channel demodulating unit demodulation after deciphering, and utilize the second business cipher key after described deciphering to be decrypted described the second business datum, by the audio/video flow output obtaining after the 3rd business datum decoding obtaining; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user, described the second business cipher key is the business cipher key for deciphering the second business datum, and described the 3rd business datum is the data that obtain after deciphering the second business datum.
In said method, central processing unit is exported between described business information list and output authentication request and is further comprised described in step C:
C1, described central processing unit be according to the 5th business information, to described server output customization request, described the 5th business information and the second identification information of reading from the first memory cell; Wherein, described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user;
C2, described server, according to described the second identification information, described the 5th business information and customization request customization the 5th business, are stored the second identification information after customizing successfully, and output customized responses and described the 5th business information are to described central processing unit;
C3, described central processing unit, for according to the response of the customization failure receiving, are exported customization failed message and described the 5th business information, for successfully responding according to the customization receiving, using described the 5th business information as the second business information.
Preferably, before described steps A, further comprise:
Server upgrades the second business cipher key of encrypting according to the cycle setting in advance.
In said method, server authenticates and comprises the device of described Mobile Multimedia Broadcasting described in step B:
Described server judges in the first identification information of its storage whether comprise described the second identification information receiving, if so, authentication success, authentication output successfully responds, otherwise, the response of authentication output failure.
In said method, central processing unit obtains the second business datum according to the second business cipher key control channel demodulating unit demodulation after deciphering and comprises described in step e:
Described central processing unit to channel demodulation unit, triggers channel demodulation unit demodulation mobile multi-media service data according to the second business cipher key output control command after deciphering;
Described channel demodulation unit receives after the control command of control unit output, controls radio-frequency tuner and carries out frequency modulation processing, and the intermediate-freuqncy signal of radio-frequency tuner output is carried out to demodulation, mobile multi-media service data to the first control unit after output demodulation;
Described radio-frequency tuner under the control of described channel demodulation unit, to radio frequency antenna reception to the radiofrequency signal of mobile multi-media service carry out frequency modulation processing, output intermediate-freuqncy signal is to described channel demodulation unit.
As seen from the above technical solutions, the present invention also provides device, the system and method for a kind of central processing unit, Mobile Multimedia Broadcasting, server is according to the second identification information and the authentication request of the device of Mobile Multimedia Broadcasting, device to Mobile Multimedia Broadcasting authenticates, to determine whether it has the qualification of acquisition in order to the business cipher key of the mobile multi-media service of enabling decryption of encrypted, namely determine whether it has customized the mobile multi-media service of encrypting; Server can, according to authentication request and second business information of central processing unit output, produce the second business cipher key of encrypting and export central processing unit to, has improved the fail safe of information interaction; Central processing unit is first decrypted the second business cipher key of encrypting, trigger the demodulation of channel demodulation unit according to the second business cipher key after deciphering again and obtain the second business datum, the second business cipher key after central processing unit utilization deciphering is decrypted the second business datum, so that the mobile multi-media service data of encrypting are deciphered to broadcasting in real time, make user's program request not be subject to the restriction of region, improve real-time and the flexibility of mobile multi-media service, reduced the complexity of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing mobile multimedia broadcast system.
Fig. 2 is the structural representation of mobile multimedia broadcast system embodiment mono-of the present invention.
Fig. 3 is the structural representation of mobile multimedia broadcast system embodiment bis-of the present invention.
Fig. 4 is the flow chart of Mobile Multimedia Broadcasting embodiment of the method one of the present invention.
Fig. 5 is the flow chart of Mobile Multimedia Broadcasting embodiment of the method two of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The invention provides system, the device and method of a kind of central processing unit, Mobile Multimedia Broadcasting, server is according to the second identification information and the authentication request of the device of Mobile Multimedia Broadcasting, device to Mobile Multimedia Broadcasting authenticates, to determine whether it has the qualification of acquisition in order to the business cipher key of the mobile multi-media service of enabling decryption of encrypted, namely determine whether it has customized the mobile multi-media service of encrypting; Server can, according to authentication request and second business information of central processing unit output, produce the second business cipher key of encrypting, deciphers the second business datum for central processing unit; Central processing unit is first decrypted the second business cipher key of encrypting, then obtains the second business datum according to the second business cipher key triggering channel demodulation unit demodulation after deciphering; The second business cipher key after central processing unit utilization deciphering is decrypted the second business datum, so that the mobile multi-media service data of encrypting are deciphered to broadcasting in real time, has improved real-time.Server of the present invention also can be according to customization request, the 5th business information and the second expression information of the device output of Mobile Multimedia Broadcasting, customize in real time the mobile multi-media service of its required encryption for the device of Mobile Multimedia Broadcasting, the flexibility that has improved mobile multi-media service.
In the present invention, the radiofrequency signal of mentioned mobile multimedia comprises the radiofrequency signal of unencrypted mobile multi-media service and the radiofrequency signal of the mobile multi-media service encrypted; The radiofrequency signal of the mobile multi-media service of having encrypted comprises the radiofrequency signal of mobile multi-media service that user has customized and the radiofrequency signal of the mobile multi-media service of user's un-customized.For sake of clarity, the mobile multi-media service of the encryption below user having been customized is called the first business, and the mobile multi-media service of the encryption having customized that user is selected is called the second business; The mobile multi-media service of the encryption of user's un-customized is called to the 4th business, and the mobile multi-media service of the encryption of the un-customized that user is selected is called the 5th business, and unencrypted mobile multi-media service is called to the 6th business.
Fig. 2 is the structural representation of mobile multimedia broadcast system embodiment mono-of the present invention.Now, in conjunction with Fig. 2, the structure of the mobile multimedia broadcast system to the embodiment of the present invention one describes, specific as follows:
Mobile multimedia broadcast system of the present invention comprises: the device 20 of Mobile Multimedia Broadcasting and server 21; Wherein, the device 20 of Mobile Multimedia Broadcasting comprises central processing unit 201, the first memory cell 202, channel demodulation unit 102, radio-frequency tuner 103, radio-frequency antenna 104 and source coding unit 105.
The first memory cell 202 in the device 20 of Mobile Multimedia Broadcasting is for storing the second identification information.The second identification information is the information of device 20 identity for representing Mobile Multimedia Broadcasting.If the device of Mobile Multimedia Broadcasting 20 is installed in the mobile terminals such as mobile phone, the first memory cell 202 can be SIM card or the usim card in mobile terminal, if the device of Mobile Multimedia Broadcasting 20 is installed in GPS navigation instrument or MP4, the first memory cell 202 can be the unit that the storage of setting up in GPS navigation instrument or MP4 represents the information of its identity, no longer its concrete structure is described at this.
Central processing unit 201 in the device 20 of Mobile Multimedia Broadcasting is connected with server 21, the first memory cell 202, channel demodulation unit 102 and source coding unit 105 respectively.Central processing unit 201 is according to reading the second identification information from the enabled instruction of user's input from the first memory cell 201, to server 21 authentication output requests and the second identification information.
The second identification information that server 21 is exported according to central processing unit 201 and authentication request authenticate the device 20 of Mobile Multimedia Broadcasting, are passing through the rear authentication output response of authentication and business information list to central processing unit 201.Particularly, server 21 is by judging that whether including the second identification information in the first pre-stored identification information determines that whether the authentication of the device 20 to Mobile Multimedia Broadcasting is successful, if comprised, judge authentication success, to successfully response and the pre-stored business information list of central processing unit 201 authentication outputs; Otherwise judgement authentification failure, to the response of central processing unit 201 authentication output failures.Server 21 can adopt existing authentication method to authenticate, and does not repeat them here.Wherein, business information list comprises the first business information, the 4th business information and the 6th business information; The first identification information is the information that has represented to customize the identity of the device of the Mobile Multimedia Broadcasting of the mobile multi-media service of encrypting.
Central processing unit 201 is according to the response authentication output failed message of authentification failure; According to the response outgoing traffic information list of authentication success, export the second business information and authentication request to server.
The authentication request that server 21 is exported according to central processing unit 201 and the second business information, generate the second business cipher key of encrypting, exports the second business cipher key of Authentication Response and encryption to central processing unit 201.Wherein, the second business cipher key is the business cipher key for deciphering the second business datum.In order to improve fail safe, the second business cipher key of the encryption that server 21 can generate according to the cycle regular update setting in advance.Can decipher the second business datum in order to guarantee the second business cipher key that server 21 generates, the second business cipher key that server 21 upgrades the encryption of its generations should guarantee the key synchronization of the second business receiving with radio-frequency antenna 104, and the cryptographic algorithm of the second business cipher key of generating of server 21 second business that should receive with radio-frequency antenna 104 is corresponding.The mode that server 21 generates the second business cipher key exists multiple, such as: the method that adopts existing digest calculations, the random number of the second business information, user profile and generation is carried out to digest calculations, result after calculating, as the second business cipher key, also can adopt existing other key generation method to produce the second business cipher key.Server 21 also exists multiple to the cipher mode of the second business cipher key, such as: utilize hash algorithm to be encrypted the second business cipher key, server 21 also can adopt existing other encryption method to be encrypted the second business cipher key.The mode that no longer generates for server 21 the second business cipher key of encrypting at this repeats.
Central processing unit 201 receives after the Authentication Response that server 21 exports, and the second business cipher key of encrypting is decrypted; Export control command to channel demodulation unit 102 according to the second business cipher key after deciphering, receive channel demodulating unit 102 the second business datum after treatment; Utilize the second business cipher key after deciphering to be decrypted the second business datum, obtain the 3rd business datum; Export the 3rd business datum to source coding unit 105, the audio/video flow that output source coding unit 105 feeds back.The 3rd business datum is the data that obtain after deciphering the second business datum.
The device 20 of Mobile Multimedia Broadcasting can be installed in the mobile terminals such as public transport, subway, mobile phone, GPS navigation instrument and MP4; Server 21 can be installed in wireless network, such as: radio broadcasting net, base station etc.
The device 20 of the present embodiment Mobile Multimedia Broadcasting also can further comprise the user interaction unit 203 being connected with central processing unit 201, export to user for the audio/video flow that central processing unit 201 is exported, information and the instruction of user's input are exported to central processing unit 201, to realize the mutual of central processing unit 201 and user.
Business information described in the present embodiment can be mobile multi-media service title, such as: the first business information is the mobile multi-media service title of the encryption that customized, the mobile multi-media service title of the encryption that the 4th business information is un-customized, the second business information is mobile multi-media service title of the encryption having customized selected of user etc.
In the system of Mobile Multimedia Broadcasting of the present invention, the central processing unit 201 of the device 20 of Mobile Multimedia Broadcasting comprises: the first control unit 2011, baseband chip 2012 and authenticating unit 2013; Server 21 comprises the second control unit 211 and the second memory cell 212.Wherein, the first control unit 2011 is connected with baseband chip 2012, authenticating unit 2013, channel demodulation unit 102, source coding unit 105 and user interaction unit 303 respectively; Baseband chip 2012 is connected with the second control unit 211 of the first control unit 2011, the first memory cell 202 and server 21 respectively; The second control unit 211 is connected with baseband chip 2012 and the second memory cell 212 respectively.
The enabled instruction authentication output request that the first control unit 2011 is inputted from user for basis is to baseband chip 2012.Described enabled instruction is the instruction that user opens the device 20 rear generations of Mobile Multimedia Broadcasting.
The second control unit 211 is for receiving the second identification information and authentication request; From the second memory cell 212, read the first identification information of storage, by judging the whether success of authentication that whether comprises the second identification information in the first identification information and determine the device 20 of Mobile Multimedia Broadcasting, if comprise, the business information list that successfully responds and read from the second memory cell 212 to baseband chip 2012 authentication outputs, if do not comprise, to the response of baseband chip 2012 authentication output failures.
The second memory cell 212 is for storing the first identification information and the first business cipher key; The second memory cell 212 also can be stored the business information list corresponding to the device 20 of each Mobile Multimedia Broadcasting.Wherein, business information list comprises the first business information, the 4th business information and the 6th business information.
The response of the authentication success that the first control unit 2011 receives for basis, outgoing traffic information list; According to the response of the authentification failure receiving, authentication output failed message.
The first control unit 2011, for according to the second business information, is exported authentication request and the second business information to baseband chip 2012.After the first control unit 2011 outgoing traffic information lists, according to the second business information of user's input, produce authentication request.
The second control unit 211 is for generating according to the authentication request receiving and the second business information the second business cipher key of encrypting, and the second business cipher key of output Authentication Response and encryption is to baseband chip 2012.The second control unit 211 can be according to the second business cipher key of predefined cryptographic algorithm and key schedule and the second business information generation encryption; Predefined cryptographic algorithm can adopt existing cryptographic algorithm, and predefined key schedule also can adopt existing key schedule, does not repeat them here.In order to improve fail safe, the second control unit 211 can be according to the second business cipher key of more newly-generated encryption of predefined cycle; In order to guarantee real-time and the validity of key, the second control unit 211 more will synchronize with the moment of the renewal of the equipment key that produces the mobile multi-media service of encrypting by the moment of new key.
The first control unit 2011 is for receiving after Authentication Response, and the second business cipher key that output is encrypted is to authenticating unit 2013.
Authenticating unit 2013, for the second business cipher key of encrypting is decrypted, is exported the second business cipher key to the first control unit 2011 after deciphering.Authenticating unit 2013 can be upgraded decipherment algorithm according to the cryptographic algorithm of the second control unit 211 of server 21, and the decipherment algorithm that authenticating unit 2013 adopts can have multiple, does not repeat them here.
The first control unit 2011, triggers 102 demodulation of channel demodulation unit and obtains mobile multi-media service data to channel demodulation unit 102 according to the second business cipher key output control command after deciphering.
The function of radio-frequency tuner 103 and radio-frequency antenna 104 is same as the prior art, does not repeat them here.
The first control unit 2011, for utilizing the second business cipher key after deciphering to decipher the second business datum, obtains the 3rd business datum, and output the 3rd business datum is to source coding unit 105.The 3rd business datum is the data that obtain after deciphering the second business datum.
The first control unit 2011 is for exporting the audio/video flow receiving.
The first control unit 2011 can carry out information interaction by user interaction unit 203 and outside, namely user interaction unit 203 can be connected with outside liquid crystal (LCD) display screen or light-emitting diode (LED) display screen, realizes the mutual of the first control unit 2011 and exterior display screen.
The first control unit 2011 can be ARM (Advanced RISC Machines) microprocessor, can be connected with authenticating unit 2013 by 7816 interfaces, can be connected with baseband chip 2012 by HIF (Host Interface) interface.
Fig. 3 is the structural representation of mobile multimedia broadcast system embodiment bis-of the present invention.Now, in conjunction with Fig. 3, the structure of the system of the Mobile Multimedia Broadcasting to the embodiment of the present invention two describes, specific as follows:
In the present embodiment, the device 30 of Mobile Multimedia Broadcasting comprises: the first memory cell 202 of channel demodulation unit 102, radio-frequency tuner 103, radio-frequency antenna 104, source coding unit 105, central processing unit 301 and storage the second identification information.Wherein, central processing unit 301 is connected with the first memory cell 202, channel demodulation unit 102, source coding unit 105 and server 31 respectively.In the present embodiment, the mobile multi-media service of the encryption of un-customized is the 4th business, and the mobile multi-media service of the encryption of the un-customized that user selects is the 5th business.
The process that central processing unit 301 receives the second business datum, deciphering the second business datum acquisition the 3rd business datum and decoding the 3rd business datum acquisition audio/video flow according to the second business cipher key of Authentication Response and encryption is identical with embodiment mono-, does not repeat them here.
The device 20 of the present embodiment Mobile Multimedia Broadcasting also can further comprise the user interaction unit 203 being connected with central processing unit 201, export to user for the audio/video flow that central processing unit 201 is exported, information and the instruction of user's input are exported to central processing unit 201, to realize the mutual of central processing unit 201 and user.
Business information described in the present embodiment can be mobile multi-media service title, and such as the mobile multi-media service title of the encryption that the 4th business information is un-customized, the 5th business information is mobile multi-media service title of the encryption of the un-customized selected of user etc.
In the present embodiment, the mobile multi-media service information of the encryption of the un-customized that central processing unit 301 can be selected according to user, by and server 31 between mutual, realize the required mobile multi-media service of real-time customized user, realize the customization to un-customized business and play in real time the flexibility that has improved system.
In the system of Mobile Multimedia Broadcasting of the present invention, the central processing unit 301 of the device 30 of Mobile Multimedia Broadcasting comprises: the first control unit 3011, baseband chip 3012 and authenticating unit 2013; Server 31 comprises: the second memory cell 212, the second control unit 311 and customization units 313.Wherein, the first control unit 3011 is connected with baseband chip 3012, authenticating unit 2013, channel demodulation unit 102, source coding unit 106 and user interaction unit 203 respectively; Baseband chip 3012 is connected with the first control unit 3011, the second control unit 311 and the first memory cell 202 respectively; The second control unit 311 is connected with the second memory cell 212 and customization units 313 respectively.
In verification process, the function of the function of the unit of central processing unit 301, the first memory cell 202 is identical with embodiment mono-, and the function of the unit of server 31 is identical with embodiment mono-, does not repeat them here.
After the first control unit 3011 outgoing traffic information lists, for according to the 5th business information, export customization request and the 5th business information to baseband chip 3012.After the first control unit 3011 outgoing traffic information lists, according to the 5th business information of user's input, produce customization request.
Baseband chip 3012, for according to the customization request receiving, reads the second identification information from the first memory cell 202, and output the second identification information, the 5th business information and customization request are to the second control unit 311.
The second control unit 311 is for receiving customization request, and output the second identification information and the 5th business information are to customization units 313.
The second control unit 311 is for exporting customized responses and the 5th business information to baseband chip 3012.The second control unit 311 is receiving after the response that customization is failed, and the response that output customization is failed and the 5th business information are to baseband chip 3012; Receiving after the successful response of customization, the 5th business information is added in the business information list corresponding with this device of storage in the second memory cell 212, by the second identification information storage, in the second memory cell 212, the successful response of output customization and the 5th business information are to baseband chip 3012.
Baseband chip 3012 is for exporting customized responses and the 5th business information to the first control unit 3011.
The first control unit 3011, for receiving after the response that customization is failed, is exported the 5th business information and customization failed message; Be used for receiving after the successful response of customization, using the 5th business information as the second business information, produce authentication request, output authentication request and the second business information are to baseband chip 3012.Wherein, the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user; Described the second business information is the mobile multi-media service information of the encryption having customized selected of user; Business information can be mobile multi-media service title.
Baseband chip 3012 is for exporting authentication request and the second business information the second control unit 311 to server 31.
The second control unit 313 of server 31 produces according to the authentication request receiving the second business cipher key of encrypting and the second business cipher key of exporting Authentication Response and encryption is identical with embodiment mono-to the process of central processing unit 301, does not repeat them here.
The device 30 of Mobile Multimedia Broadcasting is receiving after Authentication Response, the second business cipher key, triggering channel demodulation unit 102 demodulation that obtain after deciphering obtain in the process of the second business datum, deciphering the second business datum acquisition the 3rd business datum and deciphering the 3rd business datum acquisition audio/video flow, the function of unit, the first memory cell 202, channel demodulation unit 102, radio-frequency tuner 103, radio-frequency antenna 104 and the source coding unit 105 of central processing unit 301 is identical with embodiment mono-, does not repeat them here.
In above-mentioned multiple preferred embodiments of the present invention, the first control unit, channel demodulation unit, radio-frequency tuner, authenticating unit and source coding unit in the device of Mobile Multimedia Broadcasting can be integrated on a slice chip, so not only improve the integrated level of system, and be subject to the interference of other chips of the device of Mobile Multimedia Broadcasting less, improve the sensitivity that receives signal, reduce power consumption simultaneously, be conducive to system miniaturization.If the baseband chip of the device of Mobile Multimedia Broadcasting has the function of source coding, can omit source coding unit, the first control unit directly exports the 3rd business datum to baseband chip and decodes, and to obtain the audio/video flow for playing, has further reduced the power consumption of system.
Fig. 4 is the flow chart of Mobile Multimedia Broadcasting embodiment of the method one of the present invention.Now, in conjunction with Fig. 4, the method for the Mobile Multimedia Broadcasting to the embodiment of the present invention one describes, specific as follows:
The structure of the device 20 of Mobile Multimedia Broadcasting as shown in Figure 2, does not repeat them here.Server 21 comprises the second control unit 211 and the second memory cell 212.
The method that step 401 authenticates the device 20 of Mobile Multimedia Broadcasting for server 21 to step 405, specific as follows: step 401, the enabled instruction authentication output request that the first control unit 2011 bases are inputted from user is to baseband chip 2012; Step 402, baseband chip 2012 reads the second identification information from the first memory cell 202; Step 403, baseband chip 2012 is exported the second identification information and authentication request the second control unit 211 to server 21; Step 404, the first identification information that the second control unit 211 is stored according to the second identification information and the second memory cell 212 authenticates; Step 405, the second control unit 21 responds to baseband chip 2012 by rear authentication output in authentication.
Step 406 to step 411 is central processing unit 201 obtains the second business cipher key method from server 21, specific as follows: step 406, and baseband chip 2012 authentication outputs respond to the first control unit 2011; Step 407, the first control unit 2011 outgoing traffic information lists, and produce authentication request according to the second business information; Step 408, the first control unit 2011 is exported authentication request and the second business information to baseband chip 2012; Step 409, baseband chip 2012 is exported authentication request and the second business information the second control unit 211 to server 21; Step 410, the second control unit 211 produces the second business cipher key of encrypting according to the second business information; Step 411, the second control unit 211 is exported the second business cipher key of Authentication Response and encryption to baseband chip 2012.
The device 20 that step 412 is Mobile Multimedia Broadcasting to step 420 obtains the method for the second business datum, specific as follows: step 412, the second business cipher key and Authentication Response to the first control unit 2011 that baseband chip 2012 outputs are encrypted; Step 413, the second business cipher key that the first control unit 2011 outputs are encrypted is to authenticating unit 2013; Step 414, authenticating unit 2013 is decrypted the second business cipher key of encrypting, the second business cipher key to the first control unit 2011 after output deciphering; Step 415, the first control unit 2011 is exported control command to channel demodulation unit 102 according to the second business cipher key after the deciphering receiving; Step 416, channel demodulation unit 102 is controlled radio-frequency tuner 103 and is carried out frequency modulation processing; Step 417, the radiofrequency signal of the mobile multi-media service that radio-frequency tuner 103 receives radio-frequency antenna 104 is carried out frequency modulation, obtains intermediate-freuqncy signal; Step 418, radio-frequency tuner 103 is exported intermediate-freuqncy signal to channel demodulation unit 102; Step 419, channel demodulation unit 102 carries out demodulation to intermediate-freuqncy signal and obtains the second business datum; Step 420, the second business datum to the first control unit 2011 is exported in channel demodulation unit 102.
The method that 20 pairs of the second business datums of device that step 421 is Mobile Multimedia Broadcasting to step 424 are decrypted, specific as follows: step 421, the first control unit 2011 utilizes the second business cipher key after deciphering to decipher the second business datum, obtains the 3rd business datum; Step 422, the first control unit 2011 is exported the 3rd business datum to source coding unit 105 and is decoded; Step 423, source coding unit 105 exports decoded audio/video flow to first control unit 2011; Step 424, the first control unit 2011 output sound video flowings.
Fig. 5 is the flow chart of Mobile Multimedia Broadcasting embodiment of the method two of the present invention.Now, in conjunction with Fig. 5, the method for the Mobile Multimedia Broadcasting to the embodiment of the present invention two describes, specific as follows:
The structure of the device 30 of Mobile Multimedia Broadcasting as shown in Figure 3.Server 31 comprises the second control unit 311, the second memory cell 212 and customization units 313.
The method that step 501 authenticates the device 30 of Mobile Multimedia Broadcasting for server 31 to step 505, concrete grammar is identical to step 405 with the step 401 of embodiment mono-, does not repeat them here.
The method of the mobile multi-media service of the encryption that device 30 customization servers 31 that step 506 to step 513 is Mobile Multimedia Broadcasting provide, specific as follows: step 506, baseband chip 3012 authentication output response and business information list to the first control units 3011; Step 507, the first control unit 3011 outgoing traffic information lists, and according to the 5th business information of user's input, produce customization request; Step 508, the first control unit 3011 output customization requests and the 5th business information are to baseband chip 3012; Step 509, baseband chip 3012 reads the second identification information from the first memory cell 202; Step 510, baseband chip 3012 output customization requests, the 5th business information and the second identification information to the second control unit 311; Step 511, the second control unit 311 output customization requests, the 5th business information and the second identification information are to customization units 313; Step 512, whether customization units 313 customizes successfully according to the 5th business information and the second identification information judgment, output customized responses, the 5th business information and the second identification information to the second control unit 311; Step 513, the second control unit 311 is exported customized responses and the 5th business information to baseband chip 3012, and after customizing successfully, the 5th business information is added in the business information list of the second memory cell 212, by the second identification information storage in the second memory cell 212.
The device 30 that step 514 is Mobile Multimedia Broadcasting to step 519 obtains the method for the second business cipher key from server 31, specific as follows: step 514, and baseband chip 3012 is exported customized responses and the 5th business information to the first control unit 3011; Step 515, the first control unit 3011 receives after the successful response message of customization, using the 5th business information as the second business information, produces authentication request; Step 516 is identical to the method for step 411 with step 406 in embodiment mono-to the method for step 519, does not repeat them here.In step 515, the first control unit 3011 receives after the response message that customization is failed, and output customization failed message and the 5th business information, to point out customization failure.
The device 30 that step 520 is Mobile Multimedia Broadcasting to step 528 obtains the method for the second business datum, and concrete grammar is identical to the method for step 420 with the step 412 in embodiment mono-, does not repeat them here.
The method that 30 pairs of the second business datums of device that step 529 is Mobile Multimedia Broadcasting to step 532 are decrypted, concrete grammar is identical to the method for step 424 with the step 421 in embodiment mono-, does not repeat them here.
In sum, be more than preferred embodiment of the present invention, be not used for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (22)
1. a central processing unit, is characterized in that, this processor is connected with channel demodulation unit, source coding unit and the first memory cell respectively;
Described central processing unit, for reading the second identification information according to the enabled instruction from user input from the first memory cell, to outside server authentication output request and the second identification information of reading from the first memory cell; Also, for receiving authentication response and the business information list of described server output, export described business information list; Wherein, described the second identification information is the information of the device identity for representing Mobile Multimedia Broadcasting; Described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
For according to the second business information, to described server output authentication request and described the second business information, receive the Authentication Response of described server output and the second business cipher key of encryption; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user, and described the second business cipher key is the business cipher key for deciphering the second business datum;
For the second business cipher key of described encryption is decrypted, to described channel demodulation unit, receive the second business datum after described channel demodulation cell processing according to the second business cipher key output control command after deciphering; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user;
For utilizing the second business cipher key after deciphering to be decrypted the second business datum receiving, output the 3rd business datum, to source coding unit, is exported the audio/video flow of described source coding unit feedback; Wherein, described the 3rd business datum is the data that obtain after deciphering the second business datum;
This processor comprises: baseband chip, the first control unit and authenticating unit; Wherein, described the first control unit is connected with described authenticating unit and described baseband chip respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, exports described the second identification information and described authentication request to described server; For exporting the authentication response and extremely described the first control unit of business information list that obtain from described server;
Described the first control unit, for according to the response of the authentication success receiving, exports described business information list; Receive the response of authentification failure for basis, authentication output failed message; Be used for exporting the second business information and authentication request to described baseband chip;
Described baseband chip, for export described authentication request and described the second business information to described server, exports the second business cipher key of the Authentication Response obtaining from described server and encryption to described the first control unit;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, the second business cipher key after output deciphering;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key after deciphering; For receiving the second business datum after described channel demodulation cell processing; For utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit; For exporting the audio/video flow after described source coding unit decodes.
2. processor according to claim 1, it is characterized in that, described central processing unit further, after business information list described in output display, for according to the 5th business information, customizes request, described the 5th business information and the second identification information to described server output; Obtain customized responses and described the 5th business information for basis from described server, using described the 5th business information as the second business information;
Described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user.
3. processor according to claim 2, is characterized in that:
Described the first control unit, also, for according to the 5th business information, exports customization request and described the 5th business information to described baseband chip;
Described baseband chip, also, for reading described the second identification information according to the described customization request receiving from described the first memory cell, exports described the second identification information, described the 5th business information and described customization request to described server; For exporting the customized responses and extremely described the first control unit of described the 5th business information that obtain from described server;
Described the first control unit, also customizes failed message and the 5th business information for the response output according to the customization failure receiving; For successfully responding according to the customization receiving, using described the 5th business information as the second business information, export described the second business information and authentication request to described baseband chip.
4. according to the processor described in claim 1 or 3, it is characterized in that,
Described the first control unit is arm processor; Be connected with described authenticating unit by 7816 interfaces; Be connected with described baseband chip by HIF interface.
5. the device of a Mobile Multimedia Broadcasting, this device comprises: channel demodulation unit, radio-frequency tuner, radio-frequency antenna and source coding unit, it is characterized in that, this device also comprises: for the central processing unit of storing the first memory cell of the second identification information and being connected with channel demodulation unit, source coding unit and the first memory cell;
Described central processing unit, for reading the second identification information according to the enabled instruction of inputting from user from the first memory cell, to outside server authentication output request and described the second identification information, receive authentication response and the business information list of described server output, export described business information list; Wherein, described the second identification information is the information of the device identity for representing described Mobile Multimedia Broadcasting; Described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
For according to the second business information, to described server output authentication request and described the second business information, receive the Authentication Response of described server output and the second business cipher key of encryption; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user, and described the second business cipher key is the business cipher key for deciphering the second business datum;
For the second business cipher key deciphering to described encryption, to described channel demodulation unit, receive the second business datum after described channel demodulation cell processing according to the second business cipher key output control command after deciphering; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user;
For utilizing the second business cipher key after described deciphering to be decrypted described the second business datum receiving, output the 3rd business datum, to source coding unit, is exported the audio/video flow of described source coding unit feedback; Wherein, described the 3rd business datum is the data that obtain after deciphering the second business datum.
6. device according to claim 5, is characterized in that, described central processing unit comprises: baseband chip, the first control unit and authenticating unit; Wherein, described the first control unit is connected with described baseband chip and described authenticating unit respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, export described the second identification information and described authentication request to described server, for exporting the authentication response and extremely described the first control unit of business information list that obtain from described server;
Described the first control unit, for according to the response of the authentication success receiving, export described business information list, the response of the authentification failure receiving for basis, authentication output failed message, for exporting the second business information and authentication request to described baseband chip;
Described baseband chip, for export described authentication request and described the second business information to described server, exports the second business cipher key of the Authentication Response obtaining from described server and encryption to described the first control unit;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, the second business cipher key after output deciphering;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key after described deciphering, for receiving the second business datum after described channel demodulation cell processing, for utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit, for exporting the audio/video flow after described source coding unit decodes.
7. according to the device described in claim 5 or 6, it is characterized in that, described central processing unit is further after business information list described in output display, be used for according to the 5th business information, to described server output customization request, described the 5th business information and the second identification information, obtain customized responses and described the 5th business information for basis from described server, using described the 5th business information as the second business information;
Described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user.
8. device according to claim 5, is characterized in that, this device further comprises the user interaction unit being connected with central processing unit;
The audio/video flow of described central processing unit output is exported to user by described user interaction unit; The information of user's input is exported to described central processing unit.
9. device according to claim 6, is characterized in that,
Described channel demodulation unit, for receiving the control command of described the first control unit output, control described radio-frequency tuner and carry out frequency modulation processing, for the intermediate-freuqncy signal receiving is carried out to demodulation, the second business datum after output demodulation is to described the first control unit;
Described radio-frequency tuner, under the control in described channel demodulation unit, the radiofrequency signal of the mobile multi-media service that described radio-frequency antenna is received is carried out frequency modulation processing, and output intermediate-freuqncy signal is to described channel demodulation unit;
Described radio-frequency antenna, for receiving the radiofrequency signal of described mobile multi-media service;
Described source coding unit, for the 3rd business datum of described the first control unit output is decoded, output sound video flowing is to described the first control unit.
10. device according to claim 6, is characterized in that,
Described the first control unit is arm processor; Be connected with described authenticating unit by 7816 interfaces; Be connected with described baseband chip by HIF interface.
The system of 11. 1 kinds of Mobile Multimedia Broadcasting, is characterized in that, this system comprises: the device of server and Mobile Multimedia Broadcasting; The device of Mobile Multimedia Broadcasting comprises: for storing the first memory cell, central processing unit, channel demodulation unit, radio-frequency tuner, radio-frequency antenna and the source coding unit of the second identification information; Wherein, described central processing unit is connected with described server, described the first memory cell and described channel demodulation unit respectively;
Described central processing unit, for reading the second identification information according to the enabled instruction of inputting from user from the first memory cell, to the request of described server authentication output and described the second identification information; Wherein, described the second identification information is the information of the device identity for representing described Mobile Multimedia Broadcasting;
Described server, for authenticating according to the described authentication request and described the second identification information that receive, to described central processing unit authentication output response and business information list; Wherein, described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
Described central processing unit, for export described business information list according to the response of described authentication success, for according to the second business information, exports authentication request and described the second business information to described server; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user;
Described server, for generating according to described authentication request and described the second business information the second business cipher key of encrypting, the second business cipher key of output Authentication Response and described encryption is to described central processing unit;
Described central processing unit, is decrypted for the second business cipher key to described encryption; For according to the second extremely described channel demodulation unit of business cipher key output control command after deciphering, receive the second business datum after described channel demodulation cell processing; For utilizing the second business cipher key after described deciphering to be decrypted the second business datum receiving, output the 3rd business datum, to source coding unit, is exported the audio/video flow of described source coding unit feedback; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user; Described the 3rd business datum is the data that obtain after deciphering the second business datum; Described the second business cipher key is the business cipher key for deciphering the second business datum.
12. systems according to claim 11, it is characterized in that, described central processing unit comprises: baseband chip, the first control unit and authenticating unit, and described server comprises the second control unit and for storing the second memory cell of the first identification information and business information list; Wherein, described the first control unit is connected with described baseband chip and described authenticating unit respectively; Described baseband chip is connected with described the first memory cell; Described the second control unit is connected with described baseband chip and described the second memory cell respectively;
Described the first control unit, the extremely described baseband chip of enabled instruction authentication output request for basis from user's input;
Described baseband chip, for reading the second identification information according to the described authentication request receiving from the first memory cell, exports described the second identification information and described authentication request to described server;
Described the second control unit, for reading the first identification information from described the second memory cell, judge whether authentication success according to described the first identification information and described the second identification information, the described business information list that responds and read from described the second memory cell to described baseband chip authentication output;
Described baseband chip, for exporting described authentication response and described business information list to described the first control unit;
Described the first control unit, for according to the response of the authentication success receiving, export described business information list, the response of the authentification failure receiving for basis, authentication output failed message, for exporting the second business information and authentication request to described baseband chip;
Described baseband chip, for exporting described authentication request and described the second business information to described the second control unit;
Described the second control unit, for according to described the second business information and the authentication request that receive, generates the second business cipher key of encrypting, to the second business cipher key of described baseband chip output Authentication Response and described encryption;
Described baseband chip, for exporting the second business cipher key and extremely described first control unit of Authentication Response of described encryption;
Described the first control unit, for receiving after described Authentication Response, exports the second business cipher key of described encryption to described authenticating unit;
Described authenticating unit, is decrypted for the second business cipher key to described encryption, and the second business cipher key after output deciphering is to described the first control unit;
Described the first control unit, for exporting control command to described channel demodulation unit according to the second business cipher key of described deciphering, for receiving the second business datum after described channel demodulation cell processing, for utilizing the second business cipher key after described deciphering to decipher described the second business datum, export the 3rd business datum obtaining to source coding unit, for exporting the audio/video flow after described source coding unit decodes.
13. according to the system described in claim 11 or 12, it is characterized in that, described central processing unit further, after business information list described in output display, for according to the 5th business information, customizes request, described the 5th business information and the second identification information to described server output; Wherein, described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user;
Described server is further used for according to the described customization request receiving, described the 5th business information and the second identification information customization the 5th business, to described central processing unit output customized responses and described the 5th business information;
Described central processing unit is further used for according to the response of the customization failure receiving, and output customization failed message and described the 5th business information, for successfully responding according to the customization receiving, using described the 5th business information as the second business information.
14. systems according to claim 12, is characterized in that,
Described channel demodulation unit, for receiving described control command, controls described radio-frequency tuner and carries out frequency modulation processing, and for the intermediate-freuqncy signal receiving is carried out to demodulation, the second business datum after output demodulation is to described the first control unit;
Described radio-frequency tuner, under the control in described channel demodulation unit, the radiofrequency signal of the mobile multi-media service that described radio-frequency antenna is received is carried out frequency modulation processing, and output intermediate-freuqncy signal is to described channel demodulation unit;
Described radio-frequency antenna, for receiving the radiofrequency signal of described mobile multi-media service;
Described source coding unit, for described the 3rd business datum is decoded, output sound video flowing is to described the first control unit.
15. systems according to claim 12, is characterized in that,
Described the first control unit is arm processor; Be connected with described authenticating unit by 7816 interfaces; Be connected with described baseband chip by HIF interface.
16. systems according to claim 12, is characterized in that, the second control unit of described server further upgrades according to the cycle setting in advance the second business cipher key of encrypting.
17. systems according to claim 11, is characterized in that, this system further comprises the user interaction unit being connected with central processing unit;
The audio/video flow of described central processing unit output is exported to user by described user interaction unit; The information of user's input is exported to described central processing unit.
The method of 18. 1 kinds of Mobile Multimedia Broadcasting, is characterized in that, the method comprises:
Central processing unit in the device of A, Mobile Multimedia Broadcasting is according to reading the second identification information from the enabled instruction of user's input from the first memory cell, to the request of server authentication output and the second identification information; Wherein, described the second identification information is the information of the device identity for representing described Mobile Multimedia Broadcasting;
B, described server, according to described the second identification information and the described authentication request that receive, authenticate the device of described Mobile Multimedia Broadcasting, to described central processing unit authentication output response and business information list; Wherein, described business information list comprises the first business information, the 4th business information and the 6th business information; Described the first business information is the mobile multi-media service information of the encryption that customized; The mobile multi-media service information of the encryption that described the 4th business information is un-customized; Described the 6th business information is unencrypted mobile multi-media service information;
C, described central processing unit are exported described business information list, and according to the second business information, to described server output authentication request and described the second business information; Wherein, described the second business information is the mobile multi-media service information of the encryption having customized selected of user;
D, described server generate according to described authentication request and described the second business information the second business cipher key of encrypting, export the second business cipher key and the Authentication Response of described encryption to described central processing unit;
E, described central processing unit are decrypted the second business cipher key of described encryption, obtain the second business datum according to the second business cipher key control channel demodulating unit demodulation after deciphering, and utilize the second business cipher key after described deciphering to be decrypted described the second business datum, by the audio/video flow output obtaining after the 3rd business datum decoding obtaining; Wherein, described the second business datum is the mobile multi-media service data of the encryption having customized selected of user, described the second business cipher key is the business cipher key for deciphering the second business datum, and described the 3rd business datum is the data that obtain after deciphering the second business datum.
19. methods according to claim 18, is characterized in that, central processing unit is exported between described business information list and output authentication request and further comprised described in step C:
C1, described central processing unit be according to the 5th business information, to described server output customization request, described the 5th business information and the second identification information of reading from the first memory cell; Wherein, described the 5th business information is the mobile multi-media service information of the encryption of the un-customized selected of user;
C2, described server, according to described the second identification information, described the 5th business information and customization request customization the 5th business, are stored the second identification information after customizing successfully, and output customized responses and described the 5th business information are to described central processing unit;
C3, described central processing unit, for according to the response of the customization failure receiving, are exported customization failed message and described the 5th business information, for successfully responding according to the customization receiving, using described the 5th business information as the second business information.
20. according to the method described in claim 18 or 19, it is characterized in that, before described steps A, further comprises:
Server upgrades the second business cipher key of encrypting according to the cycle setting in advance.
21. methods according to claim 20, is characterized in that, server authenticates and comprises the device of described Mobile Multimedia Broadcasting described in step B:
Described server judges in the first identification information of its storage whether comprise described the second identification information receiving, if so, authentication success, authentication output successfully responds, otherwise, the response of authentication output failure.
22. methods according to claim 20, is characterized in that, central processing unit obtains the second business datum according to the second business cipher key control channel demodulating unit demodulation after deciphering and comprises described in step e:
Described central processing unit to channel demodulation unit, triggers channel demodulation unit demodulation mobile multi-media service data according to the second business cipher key output control command after deciphering;
Described channel demodulation unit receives after the control command of control unit output, controls radio-frequency tuner and carries out frequency modulation processing, and the intermediate-freuqncy signal of radio-frequency tuner output is carried out to demodulation, mobile multi-media service data to the first control unit after output demodulation;
Described radio-frequency tuner under the control of described channel demodulation unit, to radio frequency antenna reception to the radiofrequency signal of mobile multi-media service carry out frequency modulation processing, output intermediate-freuqncy signal is to described channel demodulation unit.
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Effective date of registration: 20151008 Address after: 100080, Beijing, Zhongguancun Haidian District Street 11, 100 million world wealth center, block A, 12 Patentee after: BEIJING BOXIN SHITONG TECHNOLOGY CO., LTD. Address before: 100084, No. 803, building A, Tsinghua Science and Technology Park, No. 8, Zhongguancun East Road, building 1, Haidian District, Beijing Patentee before: Beijing Chuangyi Vision Technology Co., Ltd. |
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