CN102158760A - Playing authentication method, device and system and set box of digital satellite television - Google Patents
Playing authentication method, device and system and set box of digital satellite television Download PDFInfo
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- CN102158760A CN102158760A CN2011100750339A CN201110075033A CN102158760A CN 102158760 A CN102158760 A CN 102158760A CN 2011100750339 A CN2011100750339 A CN 2011100750339A CN 201110075033 A CN201110075033 A CN 201110075033A CN 102158760 A CN102158760 A CN 102158760A
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Abstract
The embodiment of the invention discloses a playing authentication method, device and system and a set box of a digital satellite television. The method comprises the following steps of: receiving a digital television program data stream sent by a satellite and authorized region GPS (Global Positioning System) information; obtaining local GPS information; according to the local GPS information and the authorized region GPS information, judging whether the local belongs to a region in which the digital television program is permitted to play; if yes, decoding the digital television program data stream, and playing the digital television program; and if no, refusing to play the digital television program. In the embodiment, whether the region of the set box is an authorized region is judged according to the local GPS information so as to judge whether a user is a legal user. The technical scheme provided by the embodiment of the invention is combined with the traditional encryption system, and thus stronger right protection can be provided for television program operators.
Description
Technical field
The present invention relates to digital TV field, relate in particular to a kind of broadcast method for authenticating, device, system and set-top box of satellite digital TV.
Background technology
Digital video broadcast-satellite (DTH, Direct To Home) has dual mode usually, does not a kind ofly encrypt, and is called (FTA, Free To All), and user's general receiving equipments such as antenna, tuner and receiver via satellite can receive and watches.Another kind is encrypted, and is called " rating of having ready conditions ", and except that general receiving equipment, viewing card that need be special also can be watched after paying, authorizing.
TV programme operator can take " rating of having ready conditions " broadcasting usually for the program of commercial character or special purpose.Its fundamental mode is: TV programme operator is by encrypting signal scrambling technique, and the restriction TV user can only just can be watched program by smart card, and then sells program and service is provided by the mode of smart card billing; And TV user has only with the smart card paying, could obtain the right of TV reception.
Operator adopts various condition rating encryption systems to be cracked to prevent TV programme in order to reach the purpose that CA (Conditional Access) promptly pays and receives, but from practice, is not very effective.Various popular encryption systems constantly are broken, and constantly change the also few of effect of password on the smart card.Viaccess, Nagravision, Irdeto, systems such as Conax are attacked maximum condition TV receiving systems.These encryption systems are cracked one by one, have greatly damaged the just rights and interests of TV programme operator.
By above basic condition as can be known; adopt condition rating encryption system to reach " rating of having ready conditions " singlely and obviously face huge challenge; therefore need be from other angle; develop a kind of method of protecting TV programme; with existing encryption system, for TV programme operator provides more powerful rights and interests protection.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of broadcast method for authenticating, device, system and set-top box of satellite digital TV are provided, satellite is at its transport stream (TS, Transport Stream) inserts the mandate region GPS information that allows to play this TV programme in, set-top box is then obtained local GPS information, and judge that by local GPS information whether the region, place of set-top box is to authorize the region, thereby judge whether it is validated user.The technical scheme that the embodiment of the invention provides combines with existing encryption system, can provide more powerful rights and interests protection for TV programme operator.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of broadcast method for authenticating of satellite digital TV, comprising:
Receive the Digital Television digital television program data flow of satellite transmission and authorize region GPS information, this mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program;
Obtain local GPS information, and, judge the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information;
If described being judged as be, then described digital television program data flow is decoded and play this digital television program, if described being judged as not, then refusal is play this digital television program.
Wherein, before the digital television program data flow of described reception satellite transmission and the mandate region GPS information, also comprise:
Satellite records the mandate region GPS information of each digital television program in the sub-Descriptor of business description of information on services SI table; And the data flow multiplexing of described SI table with this digital television program sent in transport stream.
Wherein, the digital television program data flow of described reception satellite transmission and mandate region GPS information comprise:
Transport stream is carried out frequency locking, demultiplexing, obtain digital television program data flow and SI table;
According to the Descriptor of described SI table, obtain the mandate region GPS information of this digital television program correspondence.
Wherein, the described mode of obtaining local GPS information comprises:
GPS positioner by self obtains local GPS information; Or obtain local GPS information to digital television program operator; Or local GPS information is preset at this locality.
Accordingly, the embodiment of the invention also provides a kind of digital television transfer and Play System, comprising:
Satellite is used for the mandate region GPS information at each digital television program of the Descriptor of SI table record; And the data flow multiplexing of described SI table with this digital television program sent in transport stream; Described mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program;
Digital TV set-top box is used to receive the transport stream of described satellite transmission, obtains the digital television program data flow and authorizes region GPS information; Obtain local GPS information,, judge the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information; If described being judged as is then described digital television program data flow to be decoded, and play this digital television program by described Digital Television; If described not being judged as not, then refuse this digital television program is decoded and play;
Digital Television is used for that the decoded digital television program data flow of described digital TV set-top box is converted to video and plays.
Accordingly, the embodiment of the invention also provides a kind of broadcast authentication device of satellite digital TV, comprising:
Receiver module is used to receive the transport stream of satellite transmission, obtains the digital television program data flow and authorizes region GPS information, and this mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program;
Authentication module is used to obtain local GPS information, and according to described local GPS information and mandate region GPS information, judges the local region that is allowed to play this digital television program that whether belongs to; If described being judged as be, then described digital television program data flow is decoded and play this digital television program, if described being judged as not, then refusal is play this digital television program.
Wherein, the mandate region GPS information of described transport stream to be satellite record in the sub-Descriptor of business description of information on services SI table each digital television program, and will be sent after the data flow multiplexing of described SI table and this digital television program is in transport stream.
Wherein, described receiver module comprises:
The transport stream receiving element is used for that transport stream to satellite transmission receives, frequency locking, demultiplexing, obtains digital television program data flow and SI table; Record the mandate region GPS information of each digital television program among the Descriptor of described SI table;
Authorize region GPS acquiring unit, be used for the Descriptor of the SI table that obtained according to described transport stream receiving element, obtain the mandate region GPS information of this digital television program correspondence.
Wherein, described authentication module comprises:
Local GPS acquiring unit is used to obtain local GPS information; The mode that described local GPS acquiring unit obtains local GPS information comprises: the GPS positioner by self obtains local GPS information; Or obtain local GPS information to digital television program operator; Or local GPS information is preset at this locality;
The GPS authenticating unit is used for judging the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information;
Playing control unit is used for the judged result according to described GPS authenticating unit, controls the broadcast of this digital television program; Described GPS authenticating unit is judged as and is, then allows described digital television program data flow is decoded and play this digital television program; Described GPS authenticating unit is judged as not, then forbids decoding and play operation that described digital television program data flow is carried out.
At last, the embodiment of the invention also provides a kind of digital TV set-top box, comprises the broadcast authentication device of foregoing satellite digital TV in the described digital TV set-top box.
Broadcast method for authenticating, device, system and the set-top box of the satellite digital TV that the embodiment of the invention provides, satellite inserts the mandate region GPS information that allows to play this TV programme in its TS, set-top box is then obtained local GPS information, and judge that by local GPS information whether the region, place of set-top box is to authorize the region, thereby judge whether it is validated user.The technical scheme that the embodiment of the invention provides combines with existing encryption system, can provide more powerful rights and interests protection for TV programme operator.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the broadcast method for authenticating first embodiment schematic flow sheet of satellite digital TV provided by the invention;
Fig. 2 is the broadcast method for authenticating second embodiment schematic flow sheet of satellite digital TV provided by the invention;
Fig. 3 is business description sub-definite and syntactic structure schematic diagram;
Fig. 4 is digital television transfer provided by the invention and Play System example structure schematic diagram;
Fig. 5 is the broadcast authentication device first example structure schematic diagram of satellite digital TV provided by the invention;
Fig. 6 is the broadcast authentication device second example structure schematic diagram of satellite digital TV provided by the invention.
Embodiment
Broadcast method for authenticating, device, system and the set-top box of the satellite digital TV that the embodiment of the invention provides; judge by more local GPS information and mandate region GPS information whether this locality is to authorize the region; thereby control authorized user and unauthorized user; this scheme can provide more powerful rights and interests protection for TV programme operator with existing encryption system.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Referring to Fig. 1, be the broadcast method for authenticating first embodiment schematic flow sheet of satellite digital TV provided by the invention, as shown in Figure 1, the broadcast method for authenticating of this satellite digital TV comprises:
At step S100, receive the Digital Television digital television program data flow of satellite transmission and authorize region GPS information, this mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program.
At step S101, obtain local GPS information, and, judge the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information.As if described being judged as be, then execution in step S102; Otherwise, execution in step S103 then
At step S102, described digital television program data flow is decoded and play this digital television program.
At step S103, refusal is play this digital television program.
The broadcast method for authenticating of the satellite digital TV that the embodiment of the invention provides, receiving terminal inserts mandate region GPS information and the local GPS information that allows to play this TV programme via satellite in its transport stream, judge whether self region, place is to authorize the region, thereby judge whether it is validated user.The technical scheme that the embodiment of the invention provides combines with existing encryption system, can provide more powerful rights and interests protection for TV programme operator.
Referring to Fig. 2, be the broadcast method for authenticating second embodiment schematic flow sheet of satellite digital TV provided by the invention.In the present embodiment, with the flow process of the broadcast method for authenticating of more detailed this satellite digital TV of description.As shown in Figure 2, the broadcast method for authenticating of this satellite digital TV comprises:
At step S200, the mandate region GPS information of satellite each digital television program of record in business description (Descriptor) of information on services SI table; And the data flow multiplexing of described SI table with this digital television program sent in transport stream.This mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program; For example, certain digital television program only allows to play in Guangdong Province, and other province of China does not allow to play, and then should write down the GPS scope in Guangdong Province in this mandate region GPS information, promptly is allowed to play the GPS information of the region of this digital television program.
More specifically, according to digital video broadcasting (DVB, Digital Video Broadcasting) relevant criterion, at information on services (SI, Service Information) in the table, every business is respectively by different Descriptor explanations, as the CA_identifie_descriptor description is whether business is controlled by the condition system, its value is 0x53, what network_name_descriptor described is the network name of operator, its value is 0x40 etc., wherein, is worth business description that can be customized for Added Business for 0x80 to the descriptor of 0xFE.We are set to 0x90 with descriptor is the example explanation, and sub-specific definition of this business description and syntactic structure are as shown in Figure 3.
At step S201, transport stream is carried out frequency locking, demultiplexing, obtain digital television program data flow and SI table.More specifically, after digital TV set-top box is carried out frequency locking, demultiplexing to transport stream, with the digital television program data flow and the SI table of not decoded, promptly digital TV set-top box can be obtained the content of SI table, but can't obtain the information in the digital television program data flow.
At step S202,, obtain the mandate region GPS information of this digital television program correspondence according to the Descriptor of described SI table.More specifically, set-top box when analyzing the TS data, according to the descriptor of 0x90, in code stream, find authorize region GPS information and analyzed after, according to the service id of each TV programme, the mandate region GPS information of corresponding this program of preservation.
At step S203, obtain local GPS information.More specifically, the mode that digital TV set-top box is obtained local GPS information has multiple, and comprising: the GPS positioner by self directly obtains local GPS information; Or obtain local GPS information indirectly to digital television program operator; Or directly local GPS information is preset at this locality.
In embodiments of the present invention, implanting the GPS positioner with digital TV set-top box is example: this GPS positioner should be integrated RF radio frequency chip, baseband chip and core CPU, and add the related peripheral circuit and an integrated circuit forming, this GPS positioner can the tracing and positioning satellite channel, to determine the position of self.
At step S204,, judge the local region that is allowed to play this digital television program that whether belongs to according to local GPS information and mandate region GPS information.More specifically, authorize actual being and authorizing territorial scope of characterizing of region GPS information, digital TV set-top box judges that local GPS is that self location is whether in the mandate territorial scope after obtaining local GPS information, if in authorizing territorial scope, execution in step S205 then; If not in authorizing territorial scope, execution in step S206 then.
At step S205, digital TV set-top box is decoded and is play digital television programme data stream in authorizing territorial scope.
At step S206, digital TV set-top box is outside authorizing territorial scope, and refusal is decoded to the digital television program data flow of its reception and play.Preferably, digital TV set-top box can also be pointed out the user, and it haves no right to watch this program, or does not order this program as yet.
The broadcast method for authenticating of the satellite digital TV that the enforcement embodiment of the invention provides, satellite inserts the mandate region GPS information that allows to play this TV programme in its transport stream, digital TV set-top box receives after the transport stream of satellite, by local GPS information is compared with authorizing region GPS information, judge whether self region, place is to authorize the region, thereby determine whether to have the right to play this program.The scheme that the embodiment of the invention provides can provide more powerful rights and interests protection for TV programme operator with existing encryption system.
Referring to Fig. 4, be digital television transfer provided by the invention and Play System example structure schematic diagram, as shown in the figure, this system comprises: satellite 1, digital TV set-top box 2, Digital Television 3.
Satellite 1 is used for the mandate region GPS information at each digital television program of the Descriptor of SI table record; And the SI table data flow multiplexing with this digital television program sent in transport stream; Authorizing region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program.For example, certain digital television program only allows to play in Guangdong Province, and other province of China does not allow to play, and then should write down the GPS scope in Guangdong Province in this mandate region GPS information, promptly is allowed to play the GPS information of the region of this digital television program.
Preferably, according to digital video broadcasting (DVB, Digital Video Broadcasting) relevant criterion, at information on services (SI, Service Information) in the table, every business is respectively by different Descriptor explanations, as the CA_identifie_descriptor description is whether business is controlled by the condition system, its value is 0x53, what network_name_descriptor described is the network name of operator, its value is 0x40 etc., wherein, is worth business description that can be customized for Added Business for 0x80 to the descriptor of 0xFE.We are set to 0x90 with descriptor is the example explanation, and sub-specific definition of this business description and syntactic structure are as shown in Figure 3.
Digital TV set-top box 2 is used to receive the transport stream that satellite 1 sends, and obtains the digital television program data flow and authorizes region GPS information; Obtain local GPS information,, judge the local region that is allowed to play this digital television program that whether belongs to according to local GPS information and mandate region GPS information; If be judged as be, then digital television programme data stream decoded, and play this digital television program by Digital Television 3; If be not judged as not, then refuse this digital television program is decoded and play.
Digital Television 3 is used for that the decoded digital television program data flow of digital TV set-top box is converted to video and plays.
Implement digital television transfer and Play System that the embodiment of the invention provides, satellite inserts the mandate region GPS information that allows to play this TV programme in its transport stream, digital TV set-top box receives after the transport stream of satellite, by local GPS information is compared with authorizing region GPS information, judge whether self region, place is to authorize the region, thereby determine whether to have the right to play this program.The scheme that the embodiment of the invention provides can provide more powerful rights and interests protection for TV programme operator with existing encryption system.
Referring to Fig. 5, be the broadcast authentication device first example structure schematic diagram of satellite digital TV provided by the invention, the device that present embodiment provides can be applicable in the digital television transfer and the digital TV set-top box of Play System as shown in Figure 4.The broadcast authentication device of this satellite digital TV comprises as shown in Figure 5:
The broadcast authentication device of the satellite digital TV that the enforcement embodiment of the invention provides, in the transport stream of satellite transmission, be inserted with under the situation of the mandate region GPS information that allows this TV programme of broadcast, this device or the digital TV set-top box that this device is housed receive after the transport stream of satellite, by local GPS information is compared with authorizing region GPS information, judge whether self region, place is to authorize the region, thereby determine whether to have the right to play this program.The scheme that the embodiment of the invention provides can provide more powerful rights and interests protection for TV programme operator with existing encryption system.
Referring to Fig. 6, be the broadcast authentication device second example structure schematic diagram of satellite digital TV provided by the invention.To structure and each functions of components of more detailed this device of description in the present embodiment.Equally, the device that present embodiment provides also can be applicable in the digital television transfer and the digital TV set-top box of Play System as shown in Figure 4.As shown in Figure 6, the broadcast authentication device of this satellite digital TV comprises equally: receiver module 21 and authentication module 22.
Transport stream receiving element 211 is used for that transport stream to satellite transmission receives, frequency locking, demultiplexing.The mandate region GPS information of satellite each digital television program of record in the Descriptor of the SI of this transport stream table.After 211 pairs of transport stream of transport stream receiving element are carried out frequency locking, demultiplexing, with the digital television program data flow and the SI table of not decoded.That is, transport stream can be known the content of SI table after transport stream receiving element 211 is handled, but can't know the information in the digital television program data flow, because this digital television program data flow is not decoded.
Authorize region GPS acquiring unit 212, be used for the Descriptor of the SI table that obtained according to the transport stream receiving element, obtain the mandate region GPS information of this digital television program correspondence.
Local GPS acquiring unit 221 is used to obtain local GPS information.In embodiments of the present invention, the mode that local GPS acquiring unit 221 obtains local GPS information has multiple, comprising: the GPS positioner by self directly obtains local GPS information; Or obtain local GPS information indirectly to digital television program operator; Or directly local GPS information is preset at this locality.
In embodiments of the present invention, with local GPS acquiring unit 221 is that the GPS positioner is an example: this this locality GPS acquiring unit 221 should be integrated RF radio frequency chip, baseband chip and core CPU, and add the related peripheral circuit and an integrated circuit forming, this this locality GPS acquiring unit 221 can the tracing and positioning satellite channel, with the position of the broadcast authentication device of determining this satellite digital TV.
Playing control unit 223 is used for the judged result according to GPS authenticating unit 222, controls the broadcast of this digital television program.When GPS authenticating unit 222 judges that local GPS is authorizing in the territorial scope, then allow correlation module (as the decoder of digital electronics set-top box) that digital television programme data stream is decoded and play this digital television program; Otherwise playing control unit 223 is forbidden decoding and the play operation that correlation module carries out digital television programme data stream.Preferably, playing control unit 223 can also be pointed out the user when forbidding decoding that correlation module carries out digital television programme data stream and play operation, and it haves no right to watch this program, or does not order this program as yet.
The broadcast authentication device of the satellite digital TV that the enforcement embodiment of the invention provides, in the transport stream of satellite transmission, be inserted with under the situation of the mandate region GPS information that allows this TV programme of broadcast, this device or the digital TV set-top box that this device is housed receive after the transport stream of satellite, by local GPS information is compared with authorizing region GPS information, judge whether self region, place is to authorize the region, thereby determine whether to have the right to play this program.The scheme that the embodiment of the invention provides can provide more powerful rights and interests protection for TV programme operator with existing encryption system.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1. the broadcast method for authenticating of a satellite digital TV is characterized in that, comprising:
Receive the Digital Television digital television program data flow of satellite transmission and authorize region GPS information, this mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program;
Obtain local GPS information, and, judge the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information;
If described being judged as be, then described digital television program data flow is decoded and play this digital television program, if described being judged as not, then refusal is play this digital television program.
2. the broadcast method for authenticating of satellite digital TV as claimed in claim 1 is characterized in that, before the digital television program data flow of described reception satellite transmission and the mandate region GPS information, also comprises:
Satellite records the mandate region GPS information of each digital television program in the sub-Descriptor of business description of information on services SI table; And the data flow multiplexing of described SI table with this digital television program sent in transport stream.
3. the broadcast method for authenticating of satellite digital TV as claimed in claim 2 is characterized in that, the digital television program data flow of described reception satellite transmission and mandate region GPS information comprise:
Transport stream is carried out frequency locking, demultiplexing, obtain digital television program data flow and SI table;
According to the Descriptor of described SI table, obtain the mandate region GPS information of this digital television program correspondence.
4. the broadcast method for authenticating of satellite digital TV as claimed in claim 3 is characterized in that, the described mode of obtaining local GPS information comprises:
GPS positioner by self obtains local GPS information; Or obtain local GPS information to digital television program operator; Or local GPS information is preset at this locality.
5. digital television transfer and Play System is characterized in that, comprising:
Satellite is used for the mandate region GPS information at each digital television program of the Descriptor of SI table record; And the data flow multiplexing of described SI table with this digital television program sent in transport stream; Described mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program;
Digital TV set-top box is used to receive the transport stream of described satellite transmission, obtains the digital television program data flow and authorizes region GPS information; Obtain local GPS information,, judge the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information; If described being judged as is then described digital television program data flow to be decoded, and play this digital television program by described Digital Television; If described not being judged as not, then refuse this digital television program is decoded and play;
Digital Television is used for that the decoded digital television program data flow of described digital TV set-top box is converted to video and plays.
6. the broadcast authentication device of a satellite digital TV is characterized in that, comprising:
Receiver module is used to receive the transport stream of satellite transmission, obtains the digital television program data flow and authorizes region GPS information, and this mandate region GPS information is to be made of all GPS ensembles of communication that are allowed to play the region of this digital television program;
Authentication module is used to obtain local GPS information, and according to described local GPS information and mandate region GPS information, judges the local region that is allowed to play this digital television program that whether belongs to; If described being judged as be, then described digital television program data flow is decoded and play this digital television program, if described being judged as not, then refusal is play this digital television program.
7. the broadcast authentication device of satellite digital TV as claimed in claim 6, it is characterized in that, the mandate region GPS information of described transport stream to be satellite record in the sub-Descriptor of business description of information on services SI table each digital television program, and will be sent after the data flow multiplexing of described SI table and this digital television program is in transport stream.
8. the broadcast authentication device of satellite digital TV as claimed in claim 7 is characterized in that, described receiver module comprises:
The transport stream receiving element is used for that transport stream to satellite transmission receives, frequency locking, demultiplexing, obtains digital television program data flow and SI table; Record the mandate region GPS information of each digital television program among the Descriptor of described SI table;
Authorize region GPS acquiring unit, be used for the Descriptor of the SI table that obtained according to described transport stream receiving element, obtain the mandate region GPS information of this digital television program correspondence.
9. the broadcast authentication device of satellite digital TV as claimed in claim 8 is characterized in that, described authentication module comprises:
Local GPS acquiring unit is used to obtain local GPS information; The mode that described local GPS acquiring unit obtains local GPS information comprises: the GPS positioner by self obtains local GPS information; Or obtain local GPS information to digital television program operator; Or local GPS information is preset at this locality;
The GPS authenticating unit is used for judging the local region that is allowed to play this digital television program that whether belongs to according to described local GPS information and mandate region GPS information;
Playing control unit is used for the judged result according to described GPS authenticating unit, controls the broadcast of this digital television program; Described GPS authenticating unit is judged as and is, then allows described digital television program data flow is decoded and play this digital television program; Described GPS authenticating unit is judged as not, then forbids decoding and play operation that described digital television program data flow is carried out.
10. a digital TV set-top box is characterized in that, comprises the broadcast authentication device as each described satellite digital TV in the claim 6 to 9 in the described digital TV set-top box.
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| CN2011100750339A CN102158760A (en) | 2011-03-28 | 2011-03-28 | Playing authentication method, device and system and set box of digital satellite television |
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| CN105611333A (en) * | 2015-12-28 | 2016-05-25 | 北京中传数广技术有限公司 | Satellite live broadcast system and method in support of longitude and latitude authorization |
| CN106998587A (en) * | 2016-01-26 | 2017-08-01 | 北京华信泰科技股份有限公司 | A kind of recognition methods, device and the Integrated Receive Decoder in legal rating region |
| CN110361759A (en) * | 2014-04-23 | 2019-10-22 | 开放电视公司 | For protecting the technology of real-time positioning signal |
| WO2020259604A1 (en) * | 2019-06-28 | 2020-12-30 | 海信视像科技股份有限公司 | Digital content transmitting apparatus and method, and digital content receiving apparatus and method |
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| US20210247522A1 (en) * | 2014-04-23 | 2021-08-12 | Opentv, Inc. | Techniques for securing live positioning signals |
| US11567217B2 (en) * | 2014-04-23 | 2023-01-31 | Opentv, Inc. | Techniques for securing live positioning signals |
| US20230213660A1 (en) * | 2014-04-23 | 2023-07-06 | Opentv, Inc. | Techniques for securing live positioning signals |
| US11892548B2 (en) * | 2014-04-23 | 2024-02-06 | Opentv, Inc. | Techniques for securing live positioning signals |
| CN105611333A (en) * | 2015-12-28 | 2016-05-25 | 北京中传数广技术有限公司 | Satellite live broadcast system and method in support of longitude and latitude authorization |
| CN106998587A (en) * | 2016-01-26 | 2017-08-01 | 北京华信泰科技股份有限公司 | A kind of recognition methods, device and the Integrated Receive Decoder in legal rating region |
| CN106998587B (en) * | 2016-01-26 | 2020-06-23 | 北京华信泰科技股份有限公司 | Method and device for identifying legal viewing area and comprehensive receiving decoder |
| WO2020259604A1 (en) * | 2019-06-28 | 2020-12-30 | 海信视像科技股份有限公司 | Digital content transmitting apparatus and method, and digital content receiving apparatus and method |
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Application publication date: 20110817 |