CN103780956B - Display system and display method - Google Patents
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- CN103780956B CN103780956B CN201210400703.4A CN201210400703A CN103780956B CN 103780956 B CN103780956 B CN 103780956B CN 201210400703 A CN201210400703 A CN 201210400703A CN 103780956 B CN103780956 B CN 103780956B
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Abstract
The invention provides a display system and a display method. The display system includes a processor used for decrypting a first encryption video stream through a first encryption and decryption standard so as to obtain a first video stream and encrypting the first video stream through a second encryption and decryption standard so as to obtain a second encryption video stream; a USB device; a storage unit including a driving program of the USB display device; and a chip group coupled to the processor, the USB display device and the storage unit, wherein the processor executes the driving program to decrypt the second encryption video streams so as to obtain the second video stream and decrypt the second video stream so as to obtain first video data; the processor also encrypts the obtained video data so as to obtain encryption video data and transmits the encryption video data to the USB display device; and the USB device decrypts the encryption video data so as to obtain second video data and plays the second video data on a display. The display system and the display method use the USB display device to play video content with content protection.
Description
Technical field
The present invention relates to display system, USB display device is more particularly, to utilized to play the video content of tool content protecting
Display system and display packing.
Background technology
Among numerous interfaces that PC and notebook computer are used, USB (Universal SerialBus) connects
Mouth is most successful is also range of application one kind the widest.In the specification of current USB interface, especially do not define audio frequency and regard
The application of frequency, particularly has the audio/video data of content protecting (such as digital copyright management DRM).For example, Blu-
The content of ray disc adopts adding of advanced access content system (Advanced Access Content System, AACS)
Decryption standard being encrypted, so as to protecting audio/video content.In traditional display system, the driving of graphic process unit
Program is only capable of for obtained original video data being sent to display card.Processor can further judge to show that card is to pass through again
Analog information interface (such as VGA, DSUB interface) or have data protection digital display interface (such as HDMI,
DisplayPort or DVI) exported.And there is high image quality resolution (the such as Full High of content protecting
Definition video file) is only capable of exporting the high image quality resolution just can with script by digital display interface, if logical
Cross the output of analog information interface, then the high image quality resolution depression of order of script must be standard resolution (Standard
Definition).
Therefore, under the software/hardware framework of current computer system limits, to play the video counts with content protecting
According to by external USB, user often cannot show that card plays video or the audio frequency of content protecting (such as DHCP).Cause
This, being badly in need of a kind of display system can play the video content with content protecting using USB display device.
Content of the invention
In order to overcome the defect of prior art, the present invention provides a kind of display system, including：One processor, in order to
One first encrypted video stream of one first encryption and decryption standard is deciphered to obtain one first video flowing, and with one second encryption and decryption standard
To this first video stream encryption to obtain one second encrypted video stream；One USB display device；One memory element, shows including this USB
One driver of showing device；And a chipset, it is coupled to this processor, this USB display device and this memory element；Its
In, computing device driver is deciphered to the second encrypted video stream to obtain one second video flowing, and to the second video flowing solution
Code is to obtain one first video data；Wherein processor also obtained video data is encrypted to obtain an encrypted video
Data, and enciphered video data is sent to USB display device；Wherein USB display device is decrypted to enciphered video data
To obtain one second video data, and play the second video data in a display.
The present invention also provides a kind of display packing, and for a display system, this display system includes：One processor, a USB
Display device, a memory element and a chipset, wherein this memory element include a driver of this USB display device, and
This chipset is coupled to this processor, this USB display device and this memory element, and the method includes：Using this processor to
One first encrypted video stream of one first encryption and decryption standard is deciphered to obtain one first video flowing, and with one second encryption and decryption standard
To this first video stream encryption to obtain one second encrypted video stream；Using this driver of this computing device to this second plus
Close video flowing is deciphered to obtain one second video flowing, and to this second decoding video stream to obtain one first video data；Using
This obtained video data is encrypted to obtain an enciphered video data this processor, and this enciphered video data is passed
Deliver to this USB display device；Using this USB display device, this enciphered video data is decrypted to obtain one second video counts
According to；And play this second video data of deciphering gained in a display using this USB display device.
The present invention also provides a kind of display system, including：One processor, in order to the 1 of one first encryption and decryption standard
One encrypted video stream deciphering obtaining one first video flowing, and with one second encryption and decryption standard to this first video stream encryption with
To one second encrypted video stream；One USB display device；One memory element, including a driver of this USB display device；With
And a platform courses hub, it is coupled to this processor, this USB display device and this memory element；Wherein, this computing device
This driver is deciphered to this second encrypted video stream to obtain one second video flowing, and to this second decoding video stream to obtain
One first video data；Wherein this processor also this obtained video data is encrypted to obtain an encrypted video number
According to, and this enciphered video data is sent to this USB display device；Wherein this USB display device is entered to this enciphered video data
Row deciphering is to obtain one second video data, and plays this second video data in a display.
The present invention also provides a kind of display system, including：One processor, in order to the 1 of one first encryption and decryption standard
One encrypted video stream deciphering obtaining one first video flowing, and with one second encryption and decryption standard to this first video stream encryption with
To one second encrypted video stream；One USB display device；One memory element, including a driver of this USB display device；With
And a chipset, it is coupled to this processor, this USB display device and this memory element；Wherein this driving journey of this computing device
This second encrypted video is streamed to this USB display device by sequence；Wherein this USB display device is carried out depending on stream to this second encryption
Deciphering is to obtain one second video flowing, and this second video flowing is decoded to obtain a video data；Wherein this USB shows
Device is also in this video data of a display broadcast decoder gained.
The present invention also provides a kind of display packing, and for a display system, this display system includes：One processor, a USB
Display device, a memory element and a chipset, wherein this memory element include a driver of this USB display device, and
This chipset is coupled to this processor, this USB display device and this memory element, and the method includes：Using this processor to
One first encrypted video stream of one first encryption and decryption standard is deciphered to obtain one first video flowing, and with one second encryption and decryption standard
To this first video stream encryption to obtain one second encrypted video stream；Using this driver of this computing device by this second plus
Close video stream is to this USB display device；Using this USB display device to this second encrypted video stream from this processor
It is decrypted to obtain one second video flowing；Using this USB display device, this second video flowing of deciphering gained is decoded
To obtain a video data；And play this video data using this USB display device in a display.
The present invention also provides a kind of display system, including：One processor, in order to the 1 of one first encryption and decryption standard
One encrypted video stream deciphering obtaining one first video flowing, and with one second encryption and decryption standard to this first video stream encryption with
To one second encrypted video stream；One USB display device；One memory element, including a driver of this USB display device；With
And a platform courses hub, it is coupled to this processor, this USB display device and this memory element；Wherein this computing device
This second encrypted video is streamed to this USB display device by this driver；Wherein this USB display device is to this second encryption
It is decrypted to obtain one second video flowing depending on stream, and this second video flowing is decoded to obtain a video data；Wherein
This USB display device is also in this video data of a display broadcast decoder gained.
The present invention can play the video content with content protecting using USB display device.
Brief description
Fig. 1 is the functional-block diagram showing the display system 100 according to one embodiment of the invention.
Fig. 2A is the functional-block diagram showing the display system 200 according to another embodiment of the present invention.
Fig. 2 B is the functional-block diagram showing the display system 200 according to further embodiment of this invention.
Fig. 3 A is the schematic diagram showing the software/hardware framework of display system 100 according to first embodiment of the invention.
Fig. 3 B is the schematic diagram showing the software/hardware framework of display system 100 according to second embodiment of the invention.
Fig. 4 is the flow chart showing according to the display packing being used for display system 100 in first embodiment of the invention.
Fig. 5 is the flow chart showing according to the display packing being used for display system 100 in second embodiment of the invention.
Wherein, description of reference numerals is as follows：
100th, 200A, 200B～display system；
110th, 210A, 210B～processor；
120th, 220B～graphic process unit；
130th, 230A～chipset；
131st, 231A～north bridge chips；
132nd, 232A～South Bridge chip；
133～internal bus；
140～first memory unit；
150～second memory unit；
160th, 260A, 260B～memory element；
161st, 261A, 261B～operating system；
162nd, 262A, 262B～first driver；
163rd, 263A, 263B～second driver；
164th, 264A, 264B～media file；
170th, 270A, 270B～USB display device；
180～external CD player；
211A, 211B～first core；
212A, 212B～second core；
213B～integration Memory Controller；
240A, 240B, 250B～memory cell；
290～platform courses hub；
310A-350A, 310B-350B～stage.
Specific embodiment
For enabling the above objects, features and advantages of the present invention to become apparent, a preferred embodiment cited below particularly, and join
Close accompanying drawing, be described in detail below.
Fig. 1 is the functional-block diagram showing the display system according to one embodiment of the invention.Display system 100 is included at one
Reason device 110, a graphic process unit 120, a chipset 130, a first memory unit 140, a second memory unit 150,
One memory element 160 and a USB display device 170.Chipset 130 as each element in display system 100 between company
Connect bridge.For example, chipset 130 may include north bridge chips 131 and a South Bridge chip 132, north bridge chips 131 and south bridge
Chip 132 is connected by an internal bus 133.North bridge chips 131 in order to the higher element of attended operation frequency, for example, are processed
Device 110, graphic process unit 120 and first memory unit 140 (such as system storage).South Bridge chip 132 is in order to connect behaviour
The relatively low element of working frequency (such as PC device) and input/output ancillary equipment, e.g. USB display device 170 or outside
Playing device (such as BluRay CD player).
First memory unit 140 is a system storage.When processor 110 to have content protecting (such as CSS or
AACS video data (the such as first encrypted audio stream and the first encrypted video stream)) is decrypted (decrypt), institute after deciphering
The audio/video temporal data (the such as first audio stream and the first video flowing) obtaining can first deposit in first memory unit
In 140.Further, processor can be produced after encryption again to the first audio stream and the first video stream encryption (for example using AES)
The second raw encrypted audio stream and the second encrypted video stream are also stored in first memory unit 140.Second memory list
Unit 150 is the special graphic memory of graphic process unit 120, in order to store graph data or the decoding of graphic process unit 120
(decode) video data after.
Memory element 160 stores an operating system 161, one first driver 162 and one second driver 163.Place
Reason device 110 execution operating system 161 is using as a job platform.First driver 162 is the special drive of graphic process unit 120
Dynamic program, can be decrypted to the video data (for example with the H.264 video flowing of AES Standard Encryption) with content protecting and logical
Cross graphic process unit 120 decoded video streams (such as H.264 video flowing).
In the first embodiment, the second driver 163 (is also known as hung for the specific drivers of USB display device 170
Hook driver (hook driver)), in order to the second encrypted video is obtained by first memory unit 140 by processor 110
Stream.More specifically, after the second driver 163 obtains the second encrypted video stream, need to add to second via processor 110 again
Close video flowing is decoded to produce the second video flowing, and the second driver 163 performed by processor 110 is again to second
Video flowing is decoded to obtain the first original video data.Then, processor 110 will decode the first video data of gained
Encryption is to obtain enciphered video data, and enciphered video data is sent to USB display device 170.USB display device 170 is again
The enciphered video data being received is decrypted, to obtain one second video data, and can regard in a display broadcasting second
Frequency evidence.
In a second embodiment, the second driver 162 in order to by processor 110 by first memory unit 140
Obtain the second encrypted video stream, and the second encrypted video is streamed to USB display device 170.USB display device 170 is then right
The second encrypted video stream being received first is decrypted, to obtain the 3rd video flowing.It is noted that in this embodiment, USB
Display device 170 also includes a Video Decoder (not illustrating) in order to be decoded the 3rd video flowing of deciphering gained to obtain
Original video data.In view of the instant execution efficiency play, the Video Decoder in USB display device 170 is (for example
H.264 decoder) generally realized with hardware circuit.USB display device 170 will decode the video data of gained in a display again
Upper broadcasting.
In one embodiment, display system 100 is optionally included with an external CD player 180.External CD player 180 coupling
It is connected to South Bridge chip 132, in order to play the audio/video data with content protecting (such as AACS encryption).In another enforcement
In example, memory element 160 also optionally stores the media file 164 with content protecting.Processor 110 can be single by storage
Unit 160 storage has the media file 164 of content protecting (such as AACS encryption) and carries out data protection decoding (decrypt).
Fig. 2A is the functional-block diagram showing the display system 200 according to another embodiment of the present invention.Please also refer to Fig. 1
And Fig. 2A, the subelement function in display system 200A is identical with the element in display system 100, such as chipset 230A
(including north bridge chips 231A and South Bridge chip 232A), memory element 260A (include operating system 261A, the first driver
262A and the second driver 263A) and USB display device 270A.Display system 200A is existed with the difference of display system 100
Include one first core 211A and one second core 212A, the function of the wherein first core 211A and processor in processor 210A
110 is identical, and the function of the second core 212A is identical with graphic process unit 120.In other words, processor 210A incorporates one simultaneously
As processor and graphic process unit function (such as IntelCore 2Duo processor), and processor 210A also using one integration
Memory architecture (UnifiedMemory Architecture), implies that the first core 211A and the second core 212A access data
It is all using memory cell 240A.More specifically, memory cell 240A, in addition to system storage, is also figure
Memorizer.
Fig. 2 B is the functional-block diagram showing display system 200B according to further embodiment of this invention.Please also refer to figure
2A and Fig. 2 B, the subelement function in display system 200B is identical with the element in display system 200A, e.g. stores single
First 260B (including operating system 261B, the first driver 262B and the second driver 263B) and USB display device
270B.With the difference of display system 200A, display system 200B is that display system 200B uses a platform courses hub
(PlatformControl Hub, PCH) 290 is in order to replace the part work(of the north bridge chips 231A in script display system 200A
Energy (such as real-time clock) and the repertoire of South Bridge chip 232A, and processor 210B passes through a direct media interface
(Direct Media Interface, DMI) is connected with platform courses hub 290.Processor 210B (e.g. Intel
I3, i5, i7 processor), it includes the first core 211B, the second core 212B and an integration Memory Controller 213B, wherein
The function of the first core 211B and the second core 212B is identical with the first core 211A and the second core 212A respectively.Note
It is that the memory cell 240B in display system 200B is directly electrically to connect with the integration Memory Controller in processor 210B
Connect, and memory cell 240B is equally to use to integrate memory architecture (Unified MemoryArchitecture), for
First core 211B (typically processing arithmetic core) and the second core 212B (graphics processing core) are passed through to integrate memorizer control
Device 213B accesses the data in memory cell 240B.
For purposes of the invention, either display system 100,200A or 200B, all can be play by USB display device in having
Hold the video file of the high image quality resolution of protection.For purposes of illustration only, embodiment described later is taking the display system 100 of Fig. 1 as a example.
Those of ordinary skill in the art ought can be appreciated that and for the operation of present invention display system 100 be applied to display system 200A and 200B.
Fig. 3 A is the schematic diagram showing the software/hardware framework of display system 100 according to first embodiment of the invention.Please
With reference to Fig. 1 and Fig. 3 A, the handling process of the software/hardware of display system 100 is broadly divided into stage 310A～350A totally 5
The individual stage.Stage 310A is also referred to as the unprotected architecture of user pattern (User mode unprotected
infrastructure).For example, in stage 310A, display system 100 can by playout software (such as Power DVD,
Media Player etc.) play the video file with content protecting (such as AACS encryption).Then, processor 110 is to having
The video content of content protecting is decrypted (including the first encrypted audio stream and the first encrypted video stream), and enters the stage
320A.
Stage 320A is also referred to as user pattern shielded architecture (User mode
protectedinfrastructure).Processor 110 obtained first audio stream (for example stereo or Doby volume after deciphering
Code) and the first video flowing (such as H.264 video flowing) be stored in first memory unit 140, then by the first audio stream and first
Video flowing is encrypted using another data encrypting and deciphering standard (such as AES, 3AES) to obtain the second encrypted audio stream and second
Encrypted video stream, and the second encrypted audio stream and the second encrypted video stream are stored in memory cell 140, it is respectively sent to altogether
Corresponding audio devices (such as adlib) and graphic process unit 120, and enter stage 330A.It is noted that there is content protecting
In the video content (such as BluRay CD) of shield (such as AACS), audio signal is more unrestricted, and audio devices can receive
After second encrypted audio stream, the second encrypted audio stream is decrypted to obtain the second audio stream, then to the second audio stream
Can get the voice data of script, be available for playing.
Stage 330A is also referred to as driver core schema environmental protection (Drivers Kernel ModeProtected
Environment).In stage 330A, processor 110 executes the second driver 163 and obtains in memory cell 140
Second encrypted video stream, and the second encrypted video stream is decrypted to obtain the second video flowing, and right by graphic process unit 120
Second decoding video stream is to obtain the first video data.Then, the first video data of decoding gained is carried out by processor 110 again
Encryption (for example using AES standard) obtains an enciphered video data, and enciphered video data is sent to USB display device
170, and enter stage 340A.It should be noted that in stage 310A～330A, being all belonging to the part of software, imply that using process
Device 110 carries out the encryption and decryption operation of correlation.It is noted that in stage 330A, the second encrypted video stream is responsible for by processor 110
Deciphering and the operation of decoding, and the first obtained video data are re-encrypted, and enciphered video data are sent to USB and show
Device 170.
In stage 340A, the enciphered video data being received first is decrypted by USB display device 170, to obtain second
Video data, the second video data is sent to display by analog information interface or digital display interface and (does not paint
Show), and enter stage 350A.Because the second driver 163 of USB display device 170 is by straight in first memory unit 140
Access to obtain the second encrypted video stream, and be decrypted and the action that decodes is to obtain the first video data.But by processor 110 to
Transmission path between USB display device 170 still needs and re-encrypts protection, and therefore processor 110 is again to the first video data
It is encrypted (for example using AES standard) and obtain enciphered video data.USB display device 170 is to the encrypted video being received
After data is decrypted, can get the second video, no matter USB display device 170 passes through analog information interface or numerical monitor
Interface is play original video data over the display and all be can not be limited, and also need not show the picture depression of order of high image quality resolution
Show.In stage 350A, display can directly play the video data from USB display device 170.
Fig. 3 B is the schematic diagram showing the software/hardware framework of display system 100 according to second embodiment of the invention.Please
With reference to the application Fig. 1 and Fig. 3 A, Fig. 3 B.The difference of Fig. 3 A and Fig. 3 B essentially consists in stage 330B and 340B.In the stage
In 330B, processor 110 executes the second driver 163, obtains the second encrypted video stream by first memory unit 140
(for example passing through the H.264 video flowing of AES encryption), then the second encrypted video is streamed to USB display device 170.In the stage
In 340B, USB display device 170 is first decrypted to the second encrypted video stream being received to obtain the 3rd video flowing.Because of USB
Display device 170 has a Video Decoder (such as H.264 decoder), and therefore USB display device 170 can directly regard to the 3rd
Frequency stream is decoded to obtain original video data, and obtained video data is passed through analog information interface or numeral
Display interface is sent to display (not illustrating), and enters stage 350B.Stage 310B, 320B and 350B in Fig. 3 B respectively with
Stage 310A, 320A and 350A in Fig. 3 A is similar to, and its details repeats no more in this.
It is noted that either Fig. 3 A and Fig. 3 B, display system 100 all can not pass through graphic process unit 120 or its
One driver 162 is decoded to video flowing, but by software (being decoded by processor 110, such as Fig. 3 A) or hardware
The mode of (being decoded by USB display device 170, such as Fig. 3 B) is decoded to video flowing.Based on same reasons, in display system
In 200A and 200B, the second core 212A/212B that the present invention also can not pass through processor 210A/210B (implies that graphics process
Device) or its first driver 262A/262B video flowing is decoded.In these cases, display system 100 and 200A/
The element that 200B is used by the video content that the broadcasting of USB display device has content protecting is similar.The common skill in this area
Art personnel when understanding, the present invention also may be selected traditional approach pass through graphic process unit 120 or its first driver 162 (or
Second core 212A/212B of processor 210A/210B and its first driver 262A/262B) video flowing is decoded
To obtain video data, and analog information interface is passed through (for the high image quality resolution having content protecting by graphic process unit 120
Video content, need to be by resolution depression of order) or digital display interface playing video data over the display.
Fig. 4 is the flow chart showing according to the display packing being used for display system 100 in first embodiment of the invention.Please be same
When with reference to Fig. 1, Fig. 3 A and Fig. 4.In step S410, processor 110 is to (the advanced access of such as AACS of one first encryption and decryption standard
Content system encryption and decryption standard) one first encrypted video stream deciphering to obtain one first video flowing (such as H.264 video flowing),
And with one second encryption and decryption standard (such as AES advanced encryption and decryption standard), this first video stream encryption is encrypted with obtaining one second
Video flowing.In step S420, processor 110 executes the second driver 163 to the second encrypted video stream deciphering to obtain one the
Two video flowings (such as H.264 video flowing), and to the second decoding video stream to obtain one first video data.In step S430,
Processor 110 executes the second driver 163 and first video data is encrypted to obtain an enciphered video data, and will add
Close video data is sent to USB display device 170.In step S440, USB display device 170 is to the encrypted video number being received
According to being decrypted to obtain one second video data.In step S450, USB display device 170 plays deciphering institute in a display
The second video data obtaining.
Fig. 5 is the flow chart showing according to the display packing being used for display system 200 in another embodiment of the present invention.Please be same
When with reference to Fig. 1, Fig. 3 B and Fig. 5.In step S510, processor 110 is to (the advanced access of such as AACS of one first encryption and decryption standard
Content system encryption and decryption standard) one first encrypted video stream deciphering to obtain one first video flowing (such as H.264 video flowing),
And with one second encryption and decryption standard (such as AES advanced encryption and decryption standard), this first video stream encryption is encrypted with obtaining one second
Video flowing.In step S520, processor 110 execution the second driver 163 obtains the second encrypted video stream, and second is encrypted
Video stream is to USB display device 170.In step S530, USB display device 170 is decrypted to the second encrypted video stream
To obtain one second video flowing.In step S540, USB display device 170 is decoded to the second video flowing to obtain a video
Data.In step S550, USB display device 170 is in the video data of a display broadcast decoder gained.
It is noted that the flow process of the display packing of Fig. 4 and Fig. 5 only describes display system 100 (note：Display system 200A/
200B is also similar to) how the video content with content protecting is play by USB display device.In display system 100 and 200A/
The video flowing not being protected in 200B or the data path of original video data disclose, in the aforementioned embodiment in this
Repeat no more.
Though the present invention is disclosed as above with preferred embodiment, so it is not limited to the scope of the present invention, any this area
Those of ordinary skill, without departing from the spirit and scope of the present invention, when doing a little change and retouching, the therefore present invention
Protection domain is defined when the scope being defined depending on appended claim.
Claims (5)
1. a kind of display system, including：
One processor, in order to decipher to one first encrypted video stream with one first encryption and decryption standard to obtain one first video
Stream, and with one second encryption and decryption standard to this first video stream encryption to obtain one second encrypted video stream；
One USB display device；
One memory element, including a driver of this USB display device；And
One chipset, is coupled to this processor, this USB display device and this memory element；
Wherein, this driver of this computing device is deciphered to this second encrypted video stream to obtain one second video flowing, and right
This second decoding video stream is to obtain one first video data；
Wherein this processor also this obtained video data is encrypted to obtain an enciphered video data, and this is encrypted
Video data is sent to this USB display device；
Wherein this USB display device is decrypted to this enciphered video data to obtain one second video data, and in a display
This second video data play by device.
2. a kind of display packing, for a display system, this display system includes：One processor, a USB display device, one deposit
Storage unit and a chipset, wherein this memory element include a driver of this USB display device, and this chipset is coupled to
This processor, this USB display device and this memory element, the method includes：
Using this processor, one first encrypted video stream with one first encryption and decryption standard is deciphered to obtain one first video flowing,
And with one second encryption and decryption standard to this first video stream encryption to obtain one second encrypted video stream；
Using this driver of this computing device, this second encrypted video stream is deciphered to obtain one second video flowing, and to this
Second decoding video stream is to obtain one first video data；
Using this processor, this obtained video data is encrypted to obtain an enciphered video data, and this encryption is regarded
Frequency evidence is sent to this USB display device；
Using this USB display device, this enciphered video data is decrypted to obtain one second video data；And
Play this second video data of deciphering gained using this USB display device in a display.
3. a kind of display system, including：
One processor, in order to decipher to one first encrypted video stream with one first encryption and decryption standard to obtain one first video
Stream, and with one second encryption and decryption standard to this first video stream encryption to obtain one second encrypted video stream；
One USB display device；
One memory element, including a driver of this USB display device；And
One platform courses hub, is coupled to this processor, this USB display device and this memory element；
Wherein, this driver of this computing device is deciphered to this second encrypted video stream to obtain one second video flowing, and right
This second decoding video stream is to obtain one first video data；
Wherein this processor also this obtained video data is encrypted to obtain an enciphered video data, and this is encrypted
Video data is sent to this USB display device；
Wherein this USB display device is decrypted to this enciphered video data to obtain one second video data, and in a display
This second video data play by device.
4. display system as claimed in claim 3, also includes：
One memory cell, wherein this processor also include one first core, one second core and an integration Memory Controller,
This integration Memory Controller is electrically connected at this memory cell, in order to allow this first core and this second core control this to deposit
The data access of storage unit, wherein this first video flowing are stored in this memory cell.
5. display system as claimed in claim 4, this first video obtained by wherein this second video flowing being decrypted
Data storage is in this memory cell.
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| CN201210400703.4A CN103780956B (en) | 2012-10-19 | 2012-10-19 | Display system and display method |
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| CN201210400703.4A CN103780956B (en) | 2012-10-19 | 2012-10-19 | Display system and display method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009549A (en) * | 2006-01-26 | 2007-08-01 | 中国科学院计算技术研究所 | Decoding device for the digital copyright management |
| TW200937248A (en) * | 2007-12-07 | 2009-09-01 | Atmel Corp | Secure software download |
| CN101930279A (en) * | 2009-06-25 | 2010-12-29 | 陈仲文 | Electronic device for reducing power consumption of computer motherboard and motherboard thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009549A (en) * | 2006-01-26 | 2007-08-01 | 中国科学院计算技术研究所 | Decoding device for the digital copyright management |
| TW200937248A (en) * | 2007-12-07 | 2009-09-01 | Atmel Corp | Secure software download |
| CN101930279A (en) * | 2009-06-25 | 2010-12-29 | 陈仲文 | Electronic device for reducing power consumption of computer motherboard and motherboard thereof |
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