CN100548039C - Signal receiver and digital record method - Google Patents
Signal receiver and digital record method Download PDFInfo
- Publication number
- CN100548039C CN100548039C CNB2004800063611A CN200480006361A CN100548039C CN 100548039 C CN100548039 C CN 100548039C CN B2004800063611 A CNB2004800063611 A CN B2004800063611A CN 200480006361 A CN200480006361 A CN 200480006361A CN 100548039 C CN100548039 C CN 100548039C
- Authority
- CN
- China
- Prior art keywords
- digital
- signal receiver
- cipher
- recording equipment
- encrypted
- 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
Abstract
Can provide content protecting by using for particular device and/or the unique digital cipher of equipment relevant with particular home and/or commercial domicile at digital record.According to exemplary embodiments, provide a kind of method (400) of using signal receiver and recording equipment to carry out digital record.Described method (400) comprises step: receive the digital cipher (410) unique to described signal receiver, receiving broadcast signal (420), use described digital cipher that described broadcast singal is encrypted to produce encrypted digital data (430) and described encrypted digital data is offered described digital recording equipment (440).
Description
It is the priority and the ownership equity of two patent applications of 60/453,662 and 60/453,764 that the application requires in the sequence number that on March 11st, 2003 submitted to United States Patent (USP) trademark office.
Technical field
The present invention relates generally to digital record, more specifically, relate to digital recording, it is unique digital cipher by using for particular device and/or for the equipment relevant with particular home and/or commercial domicile, and content protecting is provided.
Background technology
Personal video recorder (PVR) provides the digital recording equipment of different characteristics, and for example allowing the user to utilize to be presented at graphic user interface (GUI) on associated television, monitor or other display device to select will be in place's broadcasting of the time in future or the TV programme of broadcasting.This apparatus figure ground with selected program recording on the memory module of for example hard disk, in case and user command, by retrieval this program, decompression from memory or the described program and vision signal outputed on relevant television equipment, monitor or other display device program that comes playback to store of decoding.At present, the equipment with this ability is perhaps with for example " TiVO ", and " RePlayTV ", the trade name of " Sky+ " and " Showstopper " is sold.
For the digital recording equipment of for example PVR, content protecting is an important problem.Particularly, content protecting provides instrument and/or method, protects for example content of digital content, in order to avoid copied wrongly, delete, steal and/or reproduce.Now, be in variable condition at the problem of the protection content of digital recording equipment, this is because proposed a plurality of emulative content protecting technology.For example, electronic industries alliance (EIA) has proposed a plurality of different content protecting technology, and it is at for example EIA-761A, and EIA-762 discloses in the standard of EIA-770 and EIA-775.Although there are these content protecting technology, be used yet go back neither one industrial scale standard.Therefore, the supplementary technology that also is provided for making the content protecting of digital record to use in the present invention of this explanation.
Summary of the invention
According to a scheme of the present invention, a kind of signal receiver is disclosed.According to exemplary embodiments, described signal receiver comprises: be used to receive the signal that comprises specific digital content input unit, be used for memory allocation and give the storage device of the digital cipher of described signal receiver and described specific digital content, be used to use digital cipher to produce the output device that encrypted digital data is encrypted the encryption device of described specific digital content and is used for the numerical data of described encryption is outputed to recording equipment.
Preferably, the digital cipher of described distribution is unique for described signal receiver and described specific digital content, therefore can not come playback by another equipment with different digital ciphers that distribute.
According to another aspect of the present invention, a kind of method of using signal receiver and recording equipment to carry out digital record is disclosed.According to exemplary embodiments, the step that described signal receiver is carried out comprises: receive the digital cipher of distributing to specific digital content and described signal receiver, receive the signal that comprises described signal specific content, use described digital cipher to produce the numerical data of encrypting to encrypt described signal specific content and the numerical data of described encryption is offered described recording equipment.
According to another scheme of the present invention, a kind of digital recording equipment is disclosed.According to exemplary embodiments, described digital recording equipment comprises that operation is used to receive the input terminal from the encrypted digital data of external connection apparatus.By distributing to and the digital cipher of the corresponding specific digital content of described encrypted digital data and the one or more equipment relevant, encrypt described encrypted digital data with the specific residence that comprises external connection apparatus.Storage operation is used to write down the numerical data of described encryption.
Description of drawings
In conjunction with the accompanying drawings, by explanation with reference to following embodiments of the invention, above-mentioned and other characteristics and advantage of the present invention, and the mode that obtains these advantages and characteristics will become more apparent, and the present invention is better understood, wherein:
Fig. 1 is the configuration of digital record according to an exemplary embodiment of the present invention;
Fig. 2 is the configuration according to the digital record of another exemplary embodiments of the present invention;
Fig. 3 is the configuration according to the digital record of another exemplary embodiments of the present invention;
Fig. 4 shows the flow chart according to the exemplary steps of a scheme of the present invention; And
Fig. 5 shows the flow chart of step according to another aspect of the present invention.
Example in this proposition shows the preferred embodiments of the present invention, and can not think by any way that these examples have limited scope of the present invention.In whole figure, use similar reference number to represent same or analogous assembly.
Embodiment
With reference now to accompanying drawing,, and more specifically with reference to figure 1, it shows the configuration 100 that is used for digital record according to an exemplary embodiment of the present invention.Configuration 100 comprises: for example signal receiving device of signal receiver 10 and for example digital recorder of digital recording equipment 30.In the exemplary embodiments of Fig. 1, signal receiver 10 equipment that 30 expressions separate with digital recording equipment.
According to exemplary embodiment, the described one or more digital ciphers that are stored in the memory 14 are distributed to signal receiver 10.Preferably, the digital cipher that is assigned with is unique, therefore can only use signal receiver 10 to decipher the numerical data of using described digital cipher to encrypt.Particular digital key can be linked to for example certain content of particular television broadcast program.For example, particular digital key can be downloaded to signal receiver 10, and before particular television broadcast program begins, it is stored in the memory 14.Then, E/D module 16 is used described particular digital key, produces and outputs to the corresponding enciphered data of particular television broadcast program that digital recording equipment 30 is used to write down via I/O terminal 18.After a while, can from digital recording equipment 30, retrieve the described encrypted digital data corresponding with described particular television broadcast program, and only by signal receiver 10 deciphering.Can download to signal receiver 10 (for example supporting nondirectional broadcast environment) by termly that this content is specific digital cipher, and/or consume as required or abandon by signal receiver 10.
According to another exemplary embodiments, unique digital cipher can be distributed to the one or more equipment relevant, thereby can only encrypt the numerical data of using described digital cipher to encrypt by described one or more equipment with particular home and/or commercial domicile.For example, in Fig. 1, this equipment relevant of signal receiver 10 expressions with particular home and/or commercial domicile.The combination in any of the foregoing description also is within the scope of the invention.
According to exemplary embodiments, can multi-form described digital cipher be offered signal receiver 10 according to various.As mentioned above, described digital cipher can be downloaded to signal receiver 10.For example, provide described digital cipher from for example broadcast source of satellite, cable, land and/or other broadcast source.Use this example, described digital cipher may be implemented as addressable signal, and comprises the broadcast singal that receives, and/or be independent of the broadcast singal that receives and be provided for signal receiver 10.As another example, during manufacture process, described digital cipher can be programmed in the memory 14 of signal receiver 10.As mentioned above, term " digital cipher " is meant encryption key and/or decruption key.Particularly, if described digital cipher is a symmetric key, a key can be used for the encryption and decryption function simultaneously.Alternatively, if described digital cipher is a unsymmetrical key, need independently encryption key and decruption key.
In one embodiment, described signal receiver 10 provides the user interface of reading, input or modification any digital key for the user of signal receiver.Therefore, if the user has copied the record that uses described signal receiver 10 records, this user can not use the playback apparatus except described signal receiver 10 to come this copy of playback, this is because described playback apparatus does not have decryption capabilities, or has the different digital key of distributing to it.
According to example embodiment, digital recording equipment 30 receives encrypted digital data from signal receiver 10 via I/O terminal 32, and encrypted digital data is recorded memory module 34.In case user command can be retrieved described encrypted numerical data, and provide it to signal receiver 10 from memory module 34, be used for deciphering and final the reproduction.As mentioned above, can be by the numerical data of encrypting for signal receiver 10 unique digital ciphers by the described encryption of digital recording equipment 30 records.In this case, can only use signal receiver 10 to decipher the numerical data of described encryption.The one or more equipment relevant with particular home and/or commercial domicile also can be shared this described digital cipher, so that can only decipher the numerical data of utilizing described digital cipher to encrypt by described one or more equipment.In this case, can be in whole described specific residence mobile digital recording equipment 30, and use with the miscellaneous equipment that provides that receives this equipment that is suitable for digital cipher.
Referring to Fig. 2, another exemplary embodiments shows the configuration 200 that is used for digital record according to the present invention.Configuration 200 comprises: for example the signal reception/route device of the signal receiving device of signal receiver 10, for example hub 20 and for example digital recorder of digital recording equipment 30.In Fig. 2, signal receiver 10 and the digital recording equipment 30 expressions assembly identical and/or similar with the assembly of the similar numbering of Fig. 1, and therefore no longer describe, so that description is simple and clear.In the exemplary embodiments of Fig. 2, each of signal receiver 10, hub 20 and digital recording equipment 30 is all represented the digital serial bus that is connected via the USB of for example various version and/or other type, comes separation equipment connected to one another.
According to exemplary embodiments, hub 20 is also operated the above-mentioned functions that is used to carry out signal receiver 10.Therefore, hub 20 operations are used for the signal receiving assembly via for example antenna, the signal of that reception provides from for example one or more signal sources in satellite, cable and/or terrestrial broadcast source, for example audio frequency, video and/or data-signal, and use for the unique one or more digital ciphers of hub 20, encrypt to the received signal, to produce the encrypted digital data that can be stored in the digital recording equipment 30.Identical with the embodiment of Fig. 1, the particular digital key that is used for hub 20 can be according to above-described mode, is linked with the certain content of for example particular television broadcast program.In addition, the one or more miscellaneous equipments that are associated with specific residence can be shared one or more digital ciphers that hub 20 uses, so that can only utilize hub 20 and/or one or more miscellaneous equipment to decipher the encrypted digital data that is produced by hub 20.For example in Fig. 2, signal receiver 10 and hub 20 expressions and particular home and/the commercial domicile associated device.In addition, identical with the embodiment of Fig. 1, the digital cipher that hub 20 receives from broadcast source, and/or during manufacture digital cipher is programmed in the memory 24.
With reference to figure 3, another embodiment shows the configuration 300 that is used for digital record according to the present invention.In Fig. 3, configuration 300 comprises the signal receiving device of signal receiver 10 for example and the digital recorder of digital recording equipment 30 for example.In Fig. 3, signal receiver 10, digital recording equipment 30 and assembly separately thereof are represented the identical and/or similar assembly of assembly with the similar numbering of Fig. 1 and 2, and are integrated in the single equipment 50.
In Fig. 3, signal receiver 10 and digital recording equipment 30 all via the signal receiving assembly of for example antenna, receive the one or more signal sources signal that provide, that comprise audio frequency, video and/or data-signal from for example satellite, cable, land and/or other broadcast source.In addition, because signal receiver 10 and digital recording equipment 30 are integrated in the single equipment 50, they are all shared for the unique one or more digital ciphers of equipment 50.Identical with the above embodiment, the particular digital key of being used by equipment 50 can be linked according to the certain content of above-described mode with for example particular television broadcast program.In addition, can also share the one or more digital ciphers that use by equipment 50 with one or more miscellaneous equipments that specific residence interrelates, so that can only utilize equipment 50 and/or described one or more miscellaneous equipment to decipher the encrypted digital data that produces by equipment 50.In addition, identical with the embodiment of Fig. 1 and 2, the digital cipher that equipment 50 receives from broadcast source, and/or during manufacture digital cipher is programmed in memory 14 and/or 34.
For the ease of understanding inventive concept of the present invention better, provide example now.With reference to figure 4, show the flow chart 400 that a scheme according to the present invention illustrates exemplary steps.For the purpose of typical case and explanation, the step of Fig. 4 is described with reference to above-mentioned exemplary embodiments shown in Figure 1.The step of Fig. 4 can not be considered to limit the present invention by any way just for the typical case.
In step 401, signal receiver 10 receives digital cipher and described digital cipher is stored in the memory 14.As mentioned above, signal receiver 10 for example receives described digital cipher from broadcast source according to various different modes in step 410, and/or during manufacture process described digital cipher is programmed in the memory 14.Described digital cipher is unique for signal receiver 10 and/or one or more miscellaneous equipments relevant with specific residence.Described digital cipher also can be linked with the certain content of for example particular television broadcast program.
In step 420, signal receiver 10 receives the one or more signal sources signal that provide, that comprise audio frequency, video and/or data-signal from for example satellite, cable, land and/or other broadcast source via the signal receiving assembly of for example antenna and input terminal 12.
In step 430, the E/D module 16 of signal receiver 10 is used the described digital cipher that receives in step 410, the described signal that receives in step 420 is encrypted, thereby produced encrypted digital data.Because described digital cipher is unique for signal receiver 10 and/or one or more miscellaneous equipments relevant with specific residence, the described encrypted digital data that produces in step 430 can be decrypted by signal receiver 10 and/or described one or more miscellaneous equipment after a while.
In step 440, signal receiver 10 will offer digital recording equipment 30 at the encrypted digital data that step 430 produces via I/O terminal 18, be used for record.According to exemplary embodiments, in step 440, can use the USB of various version for example and/or the digital serial bus that other type connects, described encrypted digital data is offered digital recording equipment 30.
With reference now to Fig. 5,, shows the flow chart 500 that exemplary steps is shown according to another aspect of the present invention.For typical case and explanation, the step of Fig. 5 is described with reference to above-mentioned exemplary embodiments shown in Figure 1.The step of Fig. 5 can not be considered to limit the present invention by any way just for the typical case.
In step 510, the encrypted digital data that digital recording equipment 30 receives from signal receiver 10.According to exemplary embodiments, the encrypted digital data that receives in step 510 is the encrypted digital data that is provided in the step 440 of Fig. 4 by signal receiver 10.
In step 520, digital recording equipment 30 records encrypted digital data in the memory module 34.According to exemplary embodiments, in step 520, the microcontroller of memory module 34 makes encrypted digital data can be recorded to the HDD of memory module 34, and carries out the function that comprises data error detection and debugging functions.
In step 530, digital recording equipment 30 is from the described encrypted digital data of memory module 34 retrievals.According to exemplary embodiments, in step 530, the microcontroller of memory module 34 allows to the HDD retrieval encrypted digital data from memory module 34, and carries out the function that comprises data error detection and debugging functions.For example, can respond the user and come execution in step 530 to the input of signal receiver 10.This user's input makes signal receiver 10 retrieval command be outputed to the digital recording equipment 30 of initiating step 530.
In step 540, digital recording equipment 30 offers signal receiver 10 with described encrypted digital data, is used for being decrypted and subsequently reproduction via E/D module 16.According to exemplary embodiments,,, described encrypted digital data is offered signal receiver 10 via the USB of for example various version and/or the digital serial bus of other type connection in step 540.
As described here, the invention provides a kind of digital recording, this technology provides content protecting by using for particular device and/or the unique digital cipher of equipment relevant with family and/or commercial domicile.The present invention is applicable to the various equipment that have or do not have display device.Therefore, refer to various different systems and equipment at this used phrase " signal receiver " and " TV signal receiver ", comprising but be not limited to have television set, computer and/or the monitor of display device, and the system or equipment that does not comprise display device, for example set-top box, video tape recorder (VCR), digital versatile disc (DVD) player, video game box, computer or miscellaneous equipment.
Although as decision design the present invention has been described, the present invention can also make amendment in spirit and scope of the present disclosure.Therefore the application is meant and covers any variation, use or the reorganization of using general principle of the present invention.In addition, the application is intended to cover and has broken away from the disclosure but be in those skilled in the art's known or traditional range and fall into situation in the restriction of claims.
Claims (13)
1, a kind of signal receiver (10,20) comprising:
Input unit (12,22) is used for receiving the signal that comprises specific digital content from signal source, and receives the digital cipher that is assigned to described specific digital content and described signal receiver from described signal source;
Storage device (14,24) is used to store described digital cipher;
Encryption device (16,26) is used to use described digital cipher to encrypt described specific digital content, to produce encrypted digital data; And
Output device (18,28) is used for described encrypted digital data is outputed to recording equipment (30).
2, signal receiver according to claim 1 (10,20) is characterized in that, can not decipher described encrypted digital data by other signal receiver that is assigned with the different digital key.
3, signal receiver according to claim 1 (10,20) is characterized in that, during manufacture, described digital cipher is programmed in the described storage device (14,24).
4, signal receiver according to claim 1 (10,20) is characterized in that, described recording equipment (30) links to each other via digital serial bus and described signal receiver (10,20).
5, signal receiver according to claim 1 (10,20) is characterized in that, described signal receiver does not comprise the user interface that is used for the described digital cipher of user's modification.
6, a kind of method (400/500) of using signal receiver and recording equipment to carry out digital record, the step that wherein said signal receiver is carried out comprises:
The digital cipher (410) of specific digital content and described signal receiver is distributed in reception;
Receive the signal (420) that comprises described specific digital content from signal source;
Use described digital cipher that described specific digital content is encrypted, to produce encrypted digital data (430); And
Described encrypted digital data is offered described recording equipment (440).
7, method according to claim 6 (400/500) is characterized in that, the step that described recording equipment is carried out comprises:
Reception is from the described encrypted digital data (510) of described signal receiver;
Described encrypted digital data is recorded memory (520);
Retrieval described encrypted digital data (530) from described memory; And
Described encrypted digital data is offered described signal receiver (540).
8, method according to claim 6 (400/500) is characterized in that, can not decipher described encrypted digital data by other signal receiver that is assigned the different digital key.
9, method according to claim 6 (400/500) is characterized in that during manufacture, and described digital cipher is programmed in the memory of described signal receiver.
10, method according to claim 6 (400/500) is characterized in that, described signal receiver and described recording equipment are integrated in the single equipment.
11, method according to claim 6 (400/500) is characterized in that, described signal receiver is connected to described recording equipment from the outside.
12, method according to claim 11 (400/500) is characterized in that, described signal receiver links to each other with described recording equipment via digital serial bus.
13, method according to claim 6 (400/500) is characterized in that, described signal receiver does not comprise the user interface that is used for the described digital cipher of user's modification.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45376403P | 2003-03-11 | 2003-03-11 | |
| US60/453,764 | 2003-03-11 | ||
| US60/453,662 | 2003-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1759604A CN1759604A (en) | 2006-04-12 |
| CN100548039C true CN100548039C (en) | 2009-10-07 |
Family
ID=36704060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800063611A Expired - Fee Related CN100548039C (en) | 2003-03-11 | 2004-03-10 | Signal receiver and digital record method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100548039C (en) |
-
2004
- 2004-03-10 CN CNB2004800063611A patent/CN100548039C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1759604A (en) | 2006-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101669364B (en) | Electronic device, reproduction method | |
| CN1783298B (en) | Digital information recording and reproducing method and apparatus therefor | |
| US20090193266A1 (en) | Access control for protected and clear AV content on same storage device | |
| JP2005244992A (en) | Instrument and method equipped with limited receiving function and copy prevention function for encryption of broadcast data | |
| MXPA03009297A (en) | Method of protecting recorded multimedia content against unauthorized duplication. | |
| US20070136610A1 (en) | Smart card with data storage, set-top box, portable player for operating smart card with data storage and method for manufacturing smart card with data storage | |
| US7117534B2 (en) | Interfacing a conditional access circuit to a digital device using input and output stream switching | |
| KR100927352B1 (en) | Method and apparatus for providing conditional access | |
| JP4707114B2 (en) | Content protection for digital recording | |
| JP4186429B2 (en) | Content transmitting apparatus and method, content receiving apparatus and method | |
| JP2005523547A (en) | Permit recording based on region | |
| CN101320582A (en) | Control method, recording device, recording and reproducing device | |
| CN100548039C (en) | Signal receiver and digital record method | |
| JPH07162832A (en) | Video information transmitter | |
| JP4469587B2 (en) | Information recording apparatus, information recording method, and digital broadcast receiver | |
| US20060018471A1 (en) | Information recording apparatus and method, information reproducing apparatus and method, information recording/reproducing apparatus and method, and computer program product | |
| JP5241945B2 (en) | Digital content receiving apparatus and digital content receiving method | |
| US20070248228A1 (en) | Audio and video recording apparatus | |
| JP2000285027A (en) | Cache device, transmitting device and program recording medium | |
| US20050152553A1 (en) | Method of synchronizing dynamic decryption keys and matching content protected data in a real time environment | |
| JP5081512B2 (en) | Digital content receiving apparatus and digital content receiving method | |
| JP5002699B2 (en) | Digital information recording / reproducing apparatus and digital information recording / reproducing method | |
| JP2002314924A (en) | Image recorder | |
| JP6602991B2 (en) | Digital content receiving apparatus and digital content receiving method | |
| JP4871992B2 (en) | Digital information recording / reproducing apparatus and digital information recording / reproducing method |
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 | ||
| CP02 | Change in the address of a patent holder |
Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: La France Patentee before: THOMSON LICENSING |
|
| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190516 Address after: Paris France Patentee after: Interactive digital CE patent holding Co. Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20210310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |