CN1234239C - Software downloading method in digital TV broadcast - Google Patents
Software downloading method in digital TV broadcast Download PDFInfo
- Publication number
- CN1234239C CN1234239C CN 02131085 CN02131085A CN1234239C CN 1234239 C CN1234239 C CN 1234239C CN 02131085 CN02131085 CN 02131085 CN 02131085 A CN02131085 A CN 02131085A CN 1234239 C CN1234239 C CN 1234239C
- Authority
- CN
- China
- Prior art keywords
- data
- module
- software
- download
- descriptor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Stored Programmes (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention relates to a software downloading method in digital TV broadcasting, which comprises: software downloading programs are started up, memory downloading mark data in receiving equipment is read to judge whether downloading is needed or not, wherein data flow is encapsulated and packed by a DSMCC two-layer structure according to the specification of a DSMCC protocol at a server end and jointly forms transmission flow according with MPEG-2 with software downloading service information and mapping information of PAT and PMT, and the transmission flow is transmitted by a mode of data carousel; in a receiving equipment end, the data flow encapsulated by DSMCC is filtered and processed by downloaded receiving programs, and online upgrade of software is carried out. The downloaded data flow is authenticated by digital signatures by the prevent invention, the completeness of the downloaded programs is ensured, and data is prevented from losing in transmission. The source of downloaded data is ensured, and the reception of irrelevant downloaded data flow is prevented. Upgrade failure under abnormal conditions is ensured by breakpoint transmission, and programs not upgraded in digital TV receiving equipment are upgraded once again.
Description
Technical field
The present invention relates to a kind of method for downloading software, particularly the method for downloading software in the television broadcasting of index word belongs to Digital Television and computer communication technology field.
Background technology
The software download technology is a kind of mode of application software online upgrading in the apparatus of digital television receiving, it can guarantee that apparatus of digital television receiving in time upgrades old application software, revise the problem that system program exists, increase new function, make application software more perfect, provide more service to the user.Existing software download process all is the image file of system program at server end (code stream Play Server), control information, be packaged into motion picture expert group (Motion Picture Experts Group-2 together, abbreviation MPEG-2) data flow, adopt the mode of data broadcasting, by playing card data playback is gone out, be input in the multiplexer, after passing through modulators modulate again, transmit by wired network, at the apparatus of digital television receiving end, after apparatus of digital television receiving receives data flow, by demodulation, the demultiplexing program, obtain the image file of system program, replace the old Image Data that are stored in scratch pad memory again, finish the renewal of system program.
Existing software download technology does not have unified standard for data download stream, there are own special-purpose software download program and server end data stream generator in different apparatus of digital television receiving factory commercial cities, only the data flow that oneself generates is received, therefore, have no idea to receive the data downloaded stream of other production firm.
The data flow of software download is transmitted by the mode of data broadcasting, the network of transmission is a unilateral network, there is not return path, whether receiving equipment (apparatus of digital television receiving) not being received data confirms to reply, because the system program data of downloading are divided into different data segments, under in different bags, broadcasting, therefore, the integrality of data can't guarantee, and, the system program of downloading carries out software upgrading (relevant with hardware device) to the apparatus of digital television receiving of appointment, to apparatus of digital television receiving, guarantees that the data that receive are to carry out the designed system program at its hardware device.
Existing software download is a free services, in order to guarantee benefits of operators, can carry out scrambling to data downloaded stream, like this, the software download service is the service of an authority to purchase (AP) with to look audio service the same, after having only this service of purchase, at receiving terminal, apparatus of digital television receiving just can carry out descrambling to the data of scrambling, could realize the upgrading of software.
In addition, in the prior art, apparatus of digital television receiving is in software upgrade process, and accident power-off causes upgrading under the situation of failure, can't realize breakpoint transmission.Just after start, can't on original position, carry out the upgrading of software.
Summary of the invention
Main purpose of the present invention is to provide the method for downloading software in a kind of digital television broadcasting, and data flow is controlled (Digital storage Media Command ﹠amp with the stored digital media; Control, abbreviation DSMCC) double-layer structure encapsulates packing, formation meets the transport stream of MPEG-2, utilize the mode of data carousel to send, at the apparatus of digital television receiving end, the reception program of having only software download is filtered the data flow of DSMCC encapsulation according to the DSMCC standard, just can carry out the online upgrading of software.
Another purpose of the present invention is to provide the method for downloading software in a kind of digital television broadcasting, it has carried out digital signature identification to data downloaded stream, guarantee on the one hand the integrality of the system program downloaded, prevent that data transport stream packets in the process of transmission from losing in transmission course; Guaranteeing the source of data download on the other hand, is the upgrading of the application software of the receiving equipment (apparatus of digital television receiving) at appointment.
A further object of the present invention is to provide the method for downloading software in a kind of digital television broadcasting, and it can carry out breakpoint transmission efficiently and accurately for the improper interruption that occurs in downloading process, improves speed of download.
The objective of the invention is to be achieved through the following technical solutions:
Method for downloading software in a kind of digital television broadcasting, which comprises at least and start the software download program, the memory that reads in the receiving equipment is downloaded flag data, judge whether to need to carry out action, wherein in the regulation of server end according to standard, data flow is encapsulated packing with the DSMCC double-layer structure, with software download service description information and Program Association Table (Program Association Table, be called for short PAT), program map table (Program Map Table, abbreviation PMT) the common transport stream that meets MPEG-2 that forms of map information descriptor, utilize the mode of data carousel to send, at the receiving equipment end, the reception program of software download is filtered the data flow of DSMCC encapsulation according to the DSMCC standard, carries out the online upgrading of software.
Particularly, the double-layer structure of this data flow comprises control channel and data channel, and wherein control channel is provided with software download Image Data descriptor; Data channel comprises module data descriptor and module data two parts, and the module data descriptor is at the module data feature description; Behind the receiving equipment starting up, receiving software is downloaded the reflection descriptor, need to judge whether down loading updating software; During software download, first receiving software is downloaded describing module information in the Image Data, the information of filtering module data description block size, number, and storage data message wherein; Receiver module data message again, the filtering module data, after digital signature verification and cyclic check (CRC32) were all passed through, the storage address data of erasable correspondence were finished renewal.
The present invention has utilized the setting of privately owned section of DSMCC double-layer structure fully, uniquely, has reasonably managed, controlled the download of module data.
In order to guarantee the correctness of transfer of data, the CRC32 verification is all carried out in the pay(useful) load of each packet in the mpeg 2 transport stream, and have a checking data, at receiving terminal, apparatus of digital television receiving for example, special-purpose CRC32 hardware check digital circuit is arranged, data are carried out verification, the data refusal that makes a mistake is handled, and it only carries out verification to load data, and the effective data download in the load data is not carried out verification, therefore, in the DSMCC data Layer, cyclic check (CRC32) data of data download have been increased, to guarantee the correctness of transfer of data.At receiving terminal, filter out CRC32 checking data corresponding in the module data of downloading application software and the module descriptor during software download, verify calculating, checking is passed through, and data are valid data, can handle; Verifying unsanctionedly, is not valid data, does not handle.
Be purposes such as depositing of reasonably management update data, the module descriptor comprises the storage address descriptor, and during software download, receiving terminal obtains memory address information according to the storage address descriptor, deposits more new data.
The breakpoint transmission function of receiving terminal, it is very important function of one of software download program, it can guarantee that apparatus of digital television receiving is in software upgrade process, accident power-off causes upgrading under the situation of failing, after start next time, the software download program can normally start, and carries out the upgrading of software in original position.That is to say, behind the receiving equipment starting up, before the executive system routine, judge new software download service earlier, or the breakpoint transmission download service; If the complete procedure that software upgrading is upgraded is then carried out in new software download; As downloading, then directly carry out the continuous process of carrying that descends of software for breakpoint transmission.
The present invention is provided with the module identification information descriptor by the module descriptor, and this descriptor has comprised the number and/or the module identification information of software integral module data; Behind the receiving equipment starting up, judge module data number or the identifying information that has write down earlier,, then carry out breakpoint transmission and download that the module data that directly will not receive last time filters, downloads if imperfect; If complete, then directly enter executive system routine, or carry out complete more newly downloaded of other new softwares.
According to the technique scheme analysis as can be known, the present invention handles according to the standard of DSMCC the data flow of software download, the hardware device of taking with concrete apparatus of digital television receiving has nothing to do, and only meets the receiving equipment of the standard of DSMCC, can both receive data stream.The data flow of software download comprises digital signature data, and the integrality of the system program of guarantee downloading prevents that packet from losing in transmission course; Guaranteeing the source of data download, is that the receiving equipment (for example apparatus of digital television receiving) at appointment improves the fail safe and the reliability of software upgrading.The twin check of data flow, guarantee the correctness of transfer of data, prevent the generation of misdata, the breakpoint transmission function of apparatus of digital television receiving, it guarantees that receiver is in the process of receiving software, if accident power-off after next receiver restarts, can continue to receive downloaded software in original position.
The present invention can upgrade the systems soft ware of apparatus of digital television receiving, to transport stream packet loss in the software download process, the situation of apparatus of digital television receiving outage is handled in the software upgrade process, and in the time of appointment, can finish the upgrading of apparatus of digital television receiving software, apparatus of digital television receiving after the upgrading is working properly, and every function meets the requirement of appointment.
Description of drawings
Fig. 1 is the generative process schematic diagram of software download data stream of the present invention.
Fig. 2 is the blocking process schematic diagram of system program Image Data of the present invention.
Fig. 3 is the escalation process schematic diagram of apparatus of digital television receiving systems soft ware of the present invention.
Fig. 4 is a digital signature implementation method flow chart of the present invention.
Fig. 5 is the checking procedure flow chart of receiving device digital signature of the present invention.
Fig. 6 is a receiving device breakpoint transmission functional schematic of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and specific embodiment:
The present invention is the method for downloading software in a kind of digital television broadcasting, and the formation and the process of transmitting of the server end data flow of its software download are as follows:
Referring to Fig. 1 and Fig. 2, software download service with look audio service, other data, services is similar, therefore, Program Specific Information (Program Specific Information is called for short PSI)/business information (Service Information is called for short SI) is all arranged, therefore, in the system program data flow of downloading, comprise the information of these base tables, in Fig. 1, provided the forming process of data flow.
At first, (the Service Description Table of SDT Service Description Table in the MPEG-2 data flow, be called for short SDT) information, in SDT, the software download service must have download service descriptor (the information description information of software download, the replacement descriptor of software download), PAT is also arranged in data flow, PMT information, PAT has bag identifier (the Packet Identifier of PMT, be called for short PID) and corresponding SERVICE_ID, PMT has the initial (DownloadServerInitiate of the download service of DSMCC data flow, be called for short DSI), download message response (DownloadInfoResponse, be called for short DIRES), the PID of downloading data block (DownloadDataBlock is called for short DDB).
In control channel, mainly be DSI information, DSI has the reflection descriptor of the system program of software download, it comprises some descriptor tabulations, the ID that mainly comprises the Image Data that will broadcast, the sign descriptor of software download, release type descriptor, the deferred message descriptor, the compent_tag in PMT.
In data channel, DIRES, DDB information are arranged, descriptor that comprises and data are all produced by the Image Data of system program; Concrete production process is illustrated by Fig. 2: first, the block data size is set, with system program Image Data piecemeal, generation module data and corresponding descriptor, second, each module data, produce CRC32 checking data descriptor, digital signature data descriptor, loading module memory of data (FLASH) address descriptor information, module I D descriptor, data message.All module datas all are bundled among the DDB, the descriptor of Image Data, and the descriptor of each module all is bundled among the DIRES, has formed data channel information.
Referring to Fig. 3, the trigger mechanism and the receiving course of the apparatus of digital television receiving end of software download:
When the apparatus of digital television receiving system program starts and switch frequency, can trigger the software download service, system program at first receives SDT, if receive the software download information descriptor from SDT, illustrated that software download information exists, and then reception hardware version information, the ID of software image data, with these information stores in the flash chip FLASH of appointment, as the hardware version of next software upgrading and the ID of software image data, receiving software is downloaded and is replaced descriptor again, filter out hardware version information, the ID of software image data, if hardware version is identical, the ID of software image data is inequality, and in the Image Data ID of appointment scope, illustrate that software needs to upgrade, next apparatus of digital television receiving begins to carry out the reception of data download after starting.
Apparatus of digital television receiving is receiving the Entitlement Management Message of software download (EntitlementManagement Message, be called for short EMM) during data, also can trigger the software download service, filter out hardware version information, the software image data ID, if hardware version information is identical with hardware version information among the FLASH, the ID of software image data and the ID of the Image Data among the FLASH are inequality, and in the reflection ID of appointment scope, illustrate that software needs to upgrade, replace the hardware version of FLASH data with the hardware version of EMM data, the ID of software image data, when guaranteeing next software download is up-to-date version information, after next time, apparatus of digital television receiving started, begin to carry out the reception of data download.
After the apparatus of digital television receiving start, start the software download program, read and download flag data among the Flash, if system program does not need upgrading, direct start-up system program, otherwise, judge it is new software download service, or the download service of breakpoint transmission again.
Referring to Fig. 4, it is the forming process of server end digital signature data, with the systems soft ware Image Data piecemeal of downloading, utilize Hash (hash) algorithm to produce summary data to each module data, the private cipher key that provides with apparatus of digital television receiving production firm utilizes RSA Algorithm that summary data is encrypted then, again ciphered data is encapsulated among the DIRES, broadcasts away together in company with other stream.
Above-mentioned these data play out by playing card by the mode of data carousel.
Referring to Fig. 4,5, the checking procedure of apparatus of digital television receiving end, as m module: apparatus of digital television receiving is after receiving the DIRES data message, therefrom be filled into m module encrypt data, the public keys that provides with apparatus of digital television receiving production firm is decrypted with RSA Algorithm enciphered data then, obtain data decryption, from DDB, be filled into m module data again, with the hash algorithm m module produced summary data, and then m data decryption and m summary data compared, if identical, illustrate that the verification of m number of modules word signature is correct, other the identical way of module employing is carried out verification.
Referring to Fig. 3,4,5, particularly, the receiving course of new software download service is:
The first step: receive PAT, filter the PID of SERVICE_ID and PMT, receive PMT information with SERVICE_ID and PID again, refilter the DSI among the DSMCC, DIRES, the PID of DDB;
Second step: receive DSI, refilter system program reflection descriptor, the ID of reflection, hardware version information, software version information, from FLASH, read hardware version information, software version information again, if hardware version is identical, software version difference (software version of reception is greater than the software version among the FLASH), the software download initialization is normal, begins to receive data download.
The 3rd step: receive DIRES information, filter the Image Data block size, the number of module refilters the CRC32 data, digital signature data, the FLASH address of mapping, the ID of module, the version of module of every module, stores these data messages again.
The 4th step: receive DDB information, filter the data of every module, carry out CRC32 verification checking and digital signature authentication, if checking meets the requirements the FLASH address date of erasable correspondence.The data verification of every module and erasablely carry out successively, after all Data Update are finished, the start-up system program.
Referring to Fig. 3,6, the software download of breakpoint transmission of the present invention, with the difference of said process be not receive DSI and DIRES, earlier from FLASH, read filtering data, be provided with filter the number parameter after, receive DDB information, filter and do not have received module data last time, concrete proof procedure is with top consistent, upgrade finish after, the start-up system program.
In conjunction with shown in Figure 6, the breakpoint transmission function is meant that apparatus of digital television receiving cuts off the power supply, do not have to cause under signal or other the unusual situation for a long time the software upgrading failure, once more in Sheng Ji the process, can not receive all data download again, but begin to receive from the place that last downloaded finishes, improved the speed of apparatus of digital television receiving software download.
Again referring to Fig. 6, apparatus of digital television receiving before system software upgrading failure the software download process and memory in the distribution condition of data, the systems soft ware of apparatus of digital television receiving is divided into n module, corresponding memory has a plurality of memory spaces, when module data of the every reception of apparatus of digital television receiving, after 32 verifications of digital signature checksum CRC are passed through, data are write corresponding memory block, and in the sequence number of the assigned address mark module of memory, the number of receiver module is downloaded complement mark.Apparatus of digital television receiving upgrading failure has both of these case: a kind of is when having received wherein m module, after 32 verifications of digital signature checksum CRC are passed through, and the data of this m module are write corresponding memory block, and module sequence number, number are downloaded after the sign renewal; Another kind is that apparatus of digital television receiving is when receiving m module.
In the process of system software upgrading once more, if first kind of situation begins to receive m+1 module, another kind of situation begins to receive m module.All receive until all modules, system software upgrading is finished.
The equipment of realizing the inventive method adopts code stream Play Server, modulator, multiplexer, digital receiver and television set.Concrete application process is:
At server end, the test of software download data stream, service data stream generation system program, software image file is generated the data flow (BUG of resolution system program of MPEG-2, increase new function), for the versatility of software download and the utilance of network, be injected into the data flow and the video-voice frequency flow of software download in the multiplexer together, multiplexer with data and video-voice frequency flow multiplexing after, be input in the modulator again, modulator is modulated back (setting frequency and symbol rate) to the signal of input, by wire cable signal modulator is modulated back (setting frequency and symbol rate) to the signal of input, by wire cable signal broadcasting is gone out, the data flow of the generation device that can be re-used is multiplexed in the video-voice frequency flow, also can modulated device modulation back output.
At receiving terminal, digital receiver and television set, apparatus of digital television receiving software initialization (software download program and system program are erasable in FLASH by burning equipment), the test of software download trigger mechanism, play data download stream at server end, when apparatus of digital television receiving start and switching frequency, system program interface display information, notify the user to start apparatus of digital television receiving, the upgrading of beginning software, the test of EMM data-triggered produces the EMM data by CA (condition receives, Conditional Access) system, after apparatus of digital television receiving receives the EMM data, system program interface display information notifies the user to start apparatus of digital television receiving, the beginning system software upgrading.
The apparatus of digital television receiving test of upgrading, play the data downloaded stream of different hardware version and software version at server end, when the hardware version among hardware version that filters in the download stream and the FLASH is inequality, system program interface display information: the apparatus of digital television receiving hardware version is inequality, the restarting systems program.When hardware version is identical, be filled into software version when identical with software version among the FLASH, system program interface display information: the apparatus of digital television receiving program is a new procedures, the restarting systems program.Be filled into software version among software version and the FLASH when inequality, display reminding information: just a moment,please, the beginning software download.After system program has been upgraded, the restarting systems program.After two apparatus of digital television receiving upgradings, every function is tested, the problem of system program has obtained solution, and newly-increased function operation is normal.
It should be noted that at last: above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (13)
1, method for downloading software in a kind of digital television broadcasting, it is characterized in that: which comprises at least startup software download program, read the download flag data of memory in the receiving equipment, need to judge whether executive software to download, wherein data flow is encapsulated packing with the double-layer structure of stored digital media control protocol at server end, formation meets the transport stream of MPEG-2, utilize the mode of data carousel to send, at the receiving equipment end, software download receives program according to described data flow stored digital media control protocol, to filtering with the data flow of stored digital media control protocol encapsulation packing, carry out the online upgrading of software according to described data flow.
2, the method for downloading software in the digital television broadcasting according to claim 1, it is characterized in that: double-layer structure comprises control channel and data channel, wherein control channel is provided with software download Image Data descriptor; Data channel comprises module data descriptor and module data two parts, and the module data descriptor is at the module data feature description; Behind the receiving equipment starting up, receiving software is downloaded described Image Data descriptor, judges whether to need to download software; During software download, receive module data descriptor in the Image Data earlier, filtering module size of data, number, and store the module data size of described filtration and the data message in the number; Receiver module data message again, filtering module data, the storage address data of erasable correspondence.
3, the method for downloading software in the digital television broadcasting according to claim 2, it is characterized in that: the module data descriptor comprises the digital signature descriptor in the module generation information, in order to data and the digital signature data that receives compared, receive corresponding module data by acquisition module digital signature descriptor during software download; Carry out verification, authentication at receiving equipment, this module data that verification, authentication are passed through is complete, and then, this module data is for to carry out downloaded software to this receiving equipment; Verification, the authentication unsanctioned, be not valid data then, do not handle.
4, the method for downloading software in the digital television broadcasting according to claim 3, it is characterized in that: the forming process of server end enciphered data is the systems soft ware Image Data piecemeal that will download, utilize the hash algorithm to produce summary data to each module data, the private cipher key that provides with the receiving equipment end utilizes RSA Algorithm that summary data is encrypted, ciphered data is encapsulated among the DIRES, broadcasting is gone out again.
5, the method for downloading software in the digital television broadcasting according to claim 3, it is characterized in that: the checking procedure of receiving equipment end is: after receiving the DIRES data message, filtration obtains module encrypt data, the public keys that provides with the receiving equipment end is decrypted with RSA Algorithm enciphered data, obtain data decryption, from DDB, be filled into the data of this module again, with the hash algorithm this module is produced summary data, again the data decryption of this module and the summary data of this module are compared, if identical, then the digital signature verification of this module is correct; The module data descriptor comprises the CRC32 descriptor, in order to data and the CRC32 data that receive are compared; During software download, obtain the CRC32 descriptor of calibration mode blocks of data at receiving equipment, receive corresponding module data again, verify calculating, checking is passed through, and illustrate that the module data of reception is correct, handles; Verify unsanctionedly, do not handle.
6, the method for downloading software in the digital television broadcasting according to claim 5 is characterized in that: the filtering module data, and after 32 verifications of digital signature checksum CRC are all passed through, the storage address data of erasable correspondence.
7, the method for downloading software in the digital television broadcasting according to claim 2, it is characterized in that: the module data descriptor comprises the storage address descriptor, during software download, receiving equipment obtains memory address information according to the storage address descriptor, deposits corresponding module data.
8, according to the method for downloading software in claim 2 or 3 or 4 or the 5 or 7 described digital television broadcastings, it is characterized in that: during software download, module data of the every reception of receiving equipment, after 32 verifications of digital signature checksum CRC are passed through, data are write corresponding memory block, and, write down the number of receiver module in the sequence number of the assigned address mark module of memory, be provided with and download complement mark in the module data descriptor.
9, the method for downloading software in the digital television broadcasting according to claim 2, it is characterized in that: the module data descriptor comprises the module identification information descriptor, and this module identification information descriptor has comprised the number and the described module identification information of software integral module data; During software download, receiving equipment is stored this module identification information descriptor; If this has downloaded all modules that this module identification information descriptor is described, then finish the software download task; If downloaded part of module, then produced the download interruption for downloading software, the point of interruption appears.
10, the method for downloading software in the digital television broadcasting according to claim 2 is characterized in that: behind the receiving equipment starting up, before the executive system routine, judge it is new software download service or breakpoint transmission download service earlier; If new software download, the complete downloading process of then carrying out software upgrading; As downloading, then directly carry out the continuous process of downloading that passes of software for breakpoint transmission.
11, the method for downloading software in the digital television broadcasting according to claim 10, it is characterized in that: breakpoint transmission is downloaded and is comprised if in the point of interruption module data descriptor download complement mark has been set, and then next module from this point of interruption module begins to download; If in the point of interruption module data descriptor download complement mark is not set, then begins to download again from this point of interruption module.
12, according to the method for downloading software in claim 2 or 3 or 4 or 5 or 7 or the 9 or 10 described digital television broadcastings, it is characterized in that: behind the receiving equipment starting up, judge earlier whether the module data number or the identifying information that have write down be complete, if it is imperfect, then carry out breakpoint transmission and download, the module data that directly will not receive last time filters, downloads; If complete, direct-execution system program then, or carry out complete more newly downloaded of other new software.
13, the method for downloading software in the digital television broadcasting according to claim 1 is characterized in that: receiving equipment is an apparatus of digital television receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02131085 CN1234239C (en) | 2002-09-30 | 2002-09-30 | Software downloading method in digital TV broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02131085 CN1234239C (en) | 2002-09-30 | 2002-09-30 | Software downloading method in digital TV broadcast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1487740A CN1487740A (en) | 2004-04-07 |
| CN1234239C true CN1234239C (en) | 2005-12-28 |
Family
ID=34144775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02131085 Expired - Fee Related CN1234239C (en) | 2002-09-30 | 2002-09-30 | Software downloading method in digital TV broadcast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1234239C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007121679A1 (en) * | 2006-04-21 | 2007-11-01 | Netac Technology Co., Ltd. | Method for upgrading software or content of terminal device based on digital tv data broadcast |
| CN103596011A (en) * | 2013-11-20 | 2014-02-19 | 北京中星微电子有限公司 | Storage processing method and device for image data |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100484234C (en) * | 2005-12-07 | 2009-04-29 | 中国科学院研究生院 | Method for real-time inserting signature and identifying signature in indigit TV transmission flow |
| KR20080007889A (en) * | 2006-07-18 | 2008-01-23 | 삼성전자주식회사 | Broadcasting receiving apparatus and software update method of broadcasting receiving apparatus |
| CN101212599B (en) * | 2006-12-31 | 2011-05-11 | 深圳市同洲电子股份有限公司 | Digital TV user interface management system and method |
| CN101472051B (en) * | 2007-12-27 | 2012-05-02 | 深圳创维数字技术股份有限公司 | Method for updating set-top box software |
| CN101546321B (en) * | 2008-03-28 | 2013-11-13 | 爱国者电子科技有限公司 | Breakpoint continuous transmission method of mobile storage equipment |
| CN101286809A (en) | 2008-05-07 | 2008-10-15 | 中兴通讯股份有限公司 | Method and device for conditional receiving update of plug-in by multimedia broadcast |
| CN101291195B (en) * | 2008-05-23 | 2011-01-19 | 中兴通讯股份有限公司 | File downloading method, system and terminal realizing breaker point continuous transmission |
| US8893112B2 (en) * | 2009-12-21 | 2014-11-18 | Intel Corporation | Providing software distribution and update services regardless of the state or physical location of an end point machine |
| DE102010033229A1 (en) * | 2010-08-03 | 2012-02-09 | Siemens Aktiengesellschaft | Method and system for tamper-proof transmission of control data |
| CN102630046B (en) * | 2012-03-13 | 2015-07-15 | 深圳市九洲电器有限公司 | Data acquisition system, method, set-top box, network server |
| CN103309758B (en) * | 2012-03-15 | 2016-01-27 | 中国移动通信集团公司 | A kind of mthods, systems and devices blocking application and download |
| EP3116218B1 (en) * | 2014-04-18 | 2020-02-12 | Huawei Device Co., Ltd. | Software upgrade method, device and equipment |
| CN104850427B (en) * | 2015-04-22 | 2019-08-30 | 深圳市元征科技股份有限公司 | A kind of code upgrade method and device |
| CN106708549B (en) * | 2015-11-16 | 2020-10-30 | 成都鼎桥通信技术有限公司 | OTA (over the air) upgrading method of handheld terminal |
| CN106791942A (en) * | 2016-12-30 | 2017-05-31 | 北京四达时代软件技术股份有限公司 | Data processing method and data processing equipment |
| CN108334282B (en) * | 2017-12-28 | 2021-07-09 | 宁德时代新能源科技股份有限公司 | Method and device for downloading program file of automobile electronic control unit |
| CN109993003A (en) * | 2019-03-12 | 2019-07-09 | 广州大学 | A kind of software flow safe verification method and device based on SGX |
| CN113760333A (en) * | 2021-09-16 | 2021-12-07 | 海宁奕斯伟集成电路设计有限公司 | Software upgrading method and device, electronic equipment and computer readable storage medium |
-
2002
- 2002-09-30 CN CN 02131085 patent/CN1234239C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007121679A1 (en) * | 2006-04-21 | 2007-11-01 | Netac Technology Co., Ltd. | Method for upgrading software or content of terminal device based on digital tv data broadcast |
| CN103596011A (en) * | 2013-11-20 | 2014-02-19 | 北京中星微电子有限公司 | Storage processing method and device for image data |
| CN103596011B (en) * | 2013-11-20 | 2017-07-04 | 北京中星微电子有限公司 | The storage processing method and device of view data |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1487740A (en) | 2004-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1234239C (en) | Software downloading method in digital TV broadcast | |
| US7698562B2 (en) | Authenticated program execution method | |
| US8397078B2 (en) | Method for authenticating and executing a program | |
| CN100338954C (en) | Process for updating a revocation list of noncompliant keys appliances or modules | |
| CN100425020C (en) | Method for upgrading software of digital terminal system in DVB system | |
| EP1619826B1 (en) | Authentification of data in a digital transmission system | |
| KR100726347B1 (en) | Authentication of data transmitted in a digital transmission system | |
| CN1147089C (en) | Method and system for consumer electronic device certificate management | |
| JP5049862B2 (en) | Transmission device and conditional access device | |
| US20050138401A1 (en) | Program data file storage method and authenticated program execution method | |
| US8411686B2 (en) | Method and device for updating a multimedia broadcast conditional access plug-in | |
| EP1755340A1 (en) | Digital cable television broadcast receiver | |
| US20030196113A1 (en) | System and method for providing a secure environment for performing conditional access functions for a set top box | |
| US7804959B2 (en) | Digital cable television broadcasting receiver | |
| CN1285114A (en) | Scrambling unit for digital transmission system | |
| CN1977534A (en) | Composite session-based encryption of video on demand content | |
| CN101394237A (en) | A host device interfacing with a point of deployment (POD) and a method of processing certificate status information | |
| EP2482551B1 (en) | Method, device and system for implementing the grouping of broadcast services | |
| CN102035829B (en) | Encryption apparatus, decryption apparatus, licensing apparatus and content data generation method | |
| EP1510057B1 (en) | Signing and authentication devices and processes and corresponding products, notably for dvb/mpeg mhp digital streams | |
| US7627762B2 (en) | Signing and authentication devices and processes and corresponding products, notably for DVB/MPEG MHP digital streams | |
| CN103281572A (en) | DVB (Digital Video Broadcasting) condition receiving device capable of descrambling integrated basic data and normal data | |
| CN1741608A (en) | Method for realizing machine-card separation in digital TV system | |
| US20090125965A1 (en) | Method for updating resident software in different appliances and appliances adapted to be updated by same | |
| CN103139551A (en) | Satellite television receiver and update method of application software |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING WIDE-SOFTWARE TECHNOLOGY CO. Free format text: FORMER OWNER: BEIJING ZHONGSHILIAN DIGITAL SYSTEM CO., LTD. Effective date: 20070302 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070302 Address after: 100083, Beijing, Zhongguancun, Haidian District East Road, 66 century science and technology building, block B, 26 Patentee after: Beijing Kuanshi Software Technology Co., Ltd. Address before: 100176, Beijing economic and Technological Development Zone, Beijing Hongda North Road, 10, Wanyuan business center, 5 floor Patentee before: Beijing Zhongshilian Digital System Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051228 Termination date: 20130930 |