CN1998234A - Portable video storage and playback device - Google Patents
Portable video storage and playback device Download PDFInfo
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- CN1998234A CN1998234A CN 200480027703 CN200480027703A CN1998234A CN 1998234 A CN1998234 A CN 1998234A CN 200480027703 CN200480027703 CN 200480027703 CN 200480027703 A CN200480027703 A CN 200480027703A CN 1998234 A CN1998234 A CN 1998234A
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Abstract
A portable video storage and playback device can download, store, and playback video files. In an exemplary embodiment, the files can be played-back in a number of different formats. In one embodiment, the invention includes a disk drive for storing a plurality of video files. A processor is coupled to the disk drive and configured to manage the files stored on the disk, which includes the ability to store, display and retrieve the video files. The invention includes a number of interfaces, for example, PAL/NTSC, S-Video and USB, which allows the video to be downloaded and played-back in any of these formats or protocols. The invention and includes a video encoder/decoder, which in one aspect is for MPEG. Advantages of the invention include the ability to store a number of video files in a compact portable device that can be transported and viewed at convenient locations.
Description
Related application
The application requires No. the 60/586th, 827, U.S. Provisional Application submitting on July 9th, 2004 and the priority of No. the 60/506th, 088, the U.S. Provisional Application submitted on September 24th, 2003, and it is hereby expressly incorporated by reference.
Technical field
The present invention relates to the general field of portable video storage and replay device.
Background technology
The conventional video storage device comprises record-reproduce head and digital recording dish.These medium relative volumes are bigger, and this is for being gratifying such as the fixedly use of being in.Yet along with for mobility and the demand that increases day by day used in diverse location, user's selection is limited in carrying a plurality of record-reproduce heads or DVD, but because these media must be bought from the shop or mail-order, so they are inconvenient.
Need a kind of tight type portable video storage and replay device, it can support to download, store and a plurality of video files of resetting.
Summary of the invention
The present invention relates to the general field of portable video storage and replay device.The present invention can download, store and the playback of video file.In one embodiment, file can be reset with multiple different form.
In one embodiment, the present invention includes the disc driver that is used to store a plurality of video files.Processor is connected to disc driver, and is used for the file of managed storage on disk, and it comprises storage, shows and retrieve the ability of (retrieve) video file.The present invention comprises a plurality of interfaces thereon, for example, PAL/NTSC, S-Video and USB, it allows video to be downloaded with any in these forms or the agreement and resets.The present invention also comprises video encoder/decoder, and it is used for MPEG in one aspect.
The present invention has the ability of a plurality of video files of storage, and wherein, file can be relevant with Authorization Attributes.In optional embodiment, the present invention has safe authentication key, and its unauthorized that is used to protect the copyright works and prevent the copyright works is propagated.Because the video file attribute can be set to only ability playback of video when key is connected with device, so this security mechanism can also be protected privacy of user.
Advantage of the present invention is included in and can betransported and the ability of a plurality of video files of storage in the viewed tight type mancarried device in position easily.
Description of drawings
The present invention is described below with reference to accompanying drawings.
Fig. 1 is the structure chart of video storage and replay device according to an embodiment of the invention;
Fig. 2 A-B is an exemplary embodiment of the present invention;
Fig. 3 A-C shows online according to an embodiment of the invention video server and subscriber computer;
Fig. 4 shows information station (kiosk) according to an embodiment of the invention;
Fig. 5 A-B is a flow chart according to an embodiment of the invention; And
Fig. 6 A-C shows Docking station (dockingstation) according to an embodiment of the invention.
Embodiment
With reference to specific device and embodiment the present invention is described.Those skilled in the art will recognize that, describe and to be used for explanation and to be used to provide putting into practice optimal mode of the present invention.
The present invention relates to the general field of portable video storage and replay device.The present invention can download, store and the playback of video file.In one embodiment, file can be reset with multiple different form.
A. apparatus structure
In one embodiment, the present invention includes the disc driver 112 that is used to store a plurality of video files.Processor 110 is connected to disc driver 112, and is used for the file of managed storage on disk, and it comprises the ability of storage, demonstration and retrieve video file.The present invention comprises a plurality of interfaces thereon, for example, PAL/NTSC 116, S-Video 118 (for example, digital video) and USB 120-122 (preferably 2.0), it allows video to be downloaded with any in these forms or the agreement and resets.The present invention also comprises video encoder/decoder 114, and it is mpeg encoder/decoder at one aspect preferred.For example use the wave point 130 of IEEE802.11 agreement to be used for being connected, and can be used for being connected with information station as described below with other wireless local mesh element.RCI 132 is provided for remote control function.In addition, optionally mating interface 134 is used to be connected to Docking station as described below.
Because the present invention includes normal video output, so the present invention can directly be inserted in television set or the watch-dog such as PAL/NTSC and S-Video.The present invention also comprises USB port, and it can communicate with computer, is used for the demonstration on computer monitor and control unit.USB port is USB 2.0 preferably, and it is enough soon to support video.Can predict other interfaces can insert traditional, existing and other interfaces in the future.An example is live wire (Fire-Wire), and it can comprise in the present invention equally.
The present invention has the ability of a plurality of video files of storage, and wherein, file can be relevant with Authorization Attributes.In one embodiment, the present invention has safe authentication key, and its unauthorized that is used to protect the copyright works and prevent the copyright works is propagated.Because the video file attribute can be set to only ability playback of video when key is connected with device, so this security mechanism can also be protected privacy of user.
In one aspect of the invention, safe authentication key is to be connected to device to allow the hardware keys of playback of video file, the function of its combine digital copyright management (DRM).For example, this can be the usb key device 124 with specific key (for example, MAC Address) as described below, or has the SIM card of encryption key.Video player is playback of video just when key is connected to device and is discerned by device only.Though show usb key, the present invention can use any key, comprises the key of flush mounting inside.In one aspect of the invention, video is encrypted with key information, makes that the device that only has key can be with video-information decoding.Use the USB storage device to be as a noticeable aspect of key, the USB storage device may comprise makes it be worth little shortcoming aspect storage data usually, and usb key may be used for store video files.Because it is complete that video file does not need, so incomplete USB device has constituted gratifying video data storage device.
Because video title can generate when downloading based on key 124 to small part, so encryption device is useful.Then have only just can be decoded and watch with key for video data.This provides hardware distinctive digital copyright management feature, has prevented the unauthorised copies and the playback of this content.In one aspect of the invention, title also comprises the device identification relevant with specific device 100.Comprise under the situation of specific identification attribute that at device 100 qualification that it obtains authenticate device is used for communicating by letter and the foradownloaded video content with video server on network.
Owing to there are a plurality of possible subscription types, device 100 can be revised video title to satisfy any restriction to subscribing to.For example, if the user is authorized to watch particular video file three times, then title can be revised when viewed in that video is each.In case maximum times that video is viewed then under the situation of the subscription attribute not being made amendment, will no longer allow to watch this video.
Except above-mentioned interface, the present invention includes the fast storage interface, it can be used to upload digital photos, video clipping or the alternative document that is stored on the fast storage.Equally, the present invention can also store the information that is used in other devices on fast storage.
Fig. 2 A-B is the exemplary embodiment of the present invention that comprises integrated video display.Fig. 2 A shows the video display 220 of constituent apparatus and is arranged in control button 230 below the display.Fig. 2 B shows the video display 270 that is set to rotate up and expose control button 280.
Power can be provided by inside or external cell power supply, or is provided by the reference power supply outlet.As mentioned above, the present invention can be connected to television set, computer monitor and control unit or other display unit.In one aspect of the invention, device can be connected to video player or DVD player, with videograph to disk 112.In another aspect of this invention, can use the computer that is connected to USB port that video is downloaded on the disk 112.
B. server and information station configuration
Fig. 3 A-C shows online according to an embodiment of the invention video server and subscriber computer.In this embodiment, the user opens web browser (for example, Internet-browser) and visits the website with the video file that is used to download.Fig. 3 A shows exemplary screen 300, and it illustrates the technology that is used for the foradownloaded video file.Fig. 3 B shows example networks server 330, and it is used for store video files and makes that video file can be used for downloading by network (for example, the Internet).
Fig. 3 C shows subscriber computer 350, and device 100 can be connected to this computer, with from video server 330 foradownloaded video files.One such aspect in, key is connected to device when downloading, to differentiate the user and to create code that this code only just allows playback when key is connected to device.The user will or buy each video respectively, perhaps can subscribe to the video with the permission specific quantity at any time.For example, if the user has subscribed to 5 videos, then server will be stored and this user-dependent key information, and software will be guaranteed only to make the video of this limited quantity relevant with it with this user-dependent key, and do not allow the download of additional video, confirm that up to device video is by deletion from this device.By this way, the user is defined its subscription.
Fig. 4 shows information station 410 according to an embodiment of the invention, and it is connected through the internet to video server 330.The information station storage also shows local stored video content on display 412, be used for selecting and the quick-downloading video-unit that arrives for the user.Periodically from server foradownloaded video content, so that content can be used to the user via high speed local interface 416 and 418, the high speed local interface can be physics socket or the antenna that is used for WLAN communication to information station 410 by internet interface 414.Because traditional Internet connection usually less than 1M bps, therefore may need to spend a period of time and be used for the video download.Yet local interface 416 can be easily in 10-100M bps scope, and this makes it possible to local quickly the download.Local interface 416 and socket 417 can be the interfaces of Ethernet, USB, live wire or other types.
Since comprise the user can with information station alternately with preview video, its a plurality of reasons of subscribing to attribute are downloaded and/or revised to device simultaneously, information station is useful.The user can briefly determine to subscribe to attribute, perhaps can determine the subscription attribute of each particular video file.These attributes comprise: play quantity, rental period, rent quota limit, purchase etc.
Information station is the no title file with video storage.Video data can not be play under the situation of effective heading file not having, and does not therefore exist the individual to invade information station and scatters the possibility of the illegal copies of video content.In fact, title produces when downloading, and is based in part on device identity and user's safe key, and this key is also referred to as digital copyright management (DRM) key.
Information station in processing not only as Distribution Layer, also as key-course.Information station comprises administrative center and bill center, and it is communicated by letter with central server 330, comprises the affairs of upgrading subscription and foradownloaded video content with execution.
C. operation
Fig. 5 A-B is a flow chart according to an embodiment of the invention.Fig. 5 A shows the technology that is used for the foradownloaded video content, and Fig. 5 B shows the technology that is used for the displaying video content.
In Fig. 5 A, step 510 beginning downloading process.Step 512 is differentiated the user by password, sign keyword or other such technology.In step 514, user search can with title and discern one and be used for downloading.In step 516, the user asks to download.In step 518, inspection of the present invention is to subscriber's download limits.If within restriction, then downloading in step 520, the subscriber goes through.In one aspect, shown in the step 522, video content used subscriber's key information to encrypt before downloading.If approval is not downloaded in step 520, then the subscriber can be chosen as new download paying in step 524.If the subscriber has the video of its limited quantity that can pay the bill, then the subscriber may can delete downloaded files, goes through to download new file then.If the subscriber selects not pay or take other such action, then process finishes in step 526.
In Fig. 5 B, step 560 beginning playing process.Step 562 checks that user's key is to guarantee its checking video.If key is correct, then step 564 is with video decode and broadcast.If key is incorrect, then step 566 refusal is with video decode and broadcast.In one aspect of the invention, use the information relevant that video is encoded, and key must be connected to device to allow playback with key.
D. bill management
The bill that is used for the video download and/or subscribes to can be managed with other service with uniform way.For example, according to the present invention, ISP (ISP) may want to provide Video service, and should serve and internet access cost is made out the bill together.ISP adopts the present invention to follow the trail of the subscriber and suitably monitor its download and subscription.
E. Docking station
Fig. 6 A shows Docking station 520 according to an embodiment of the invention.Docking station comprises support (cradle, pedestal) 522, device interface 524 and video output 526.For example, Docking station is provided for the support of device 100, to be connected with external display such as television set or computer monitor and control unit.The Docking station support also provides power for installing 100, with or power be provided or be battery recharge in the device to device.Fig. 6 B also illustrates the interface panel that is used for Docking station that comprises power input 528.
In embodiment shown in Fig. 6 B, Docking station comprises internet interface 535.Interface permission device 100 that should be additional is connected with video server and video data is downloaded to device 100.
In another embodiment shown in Fig. 6 C, Docking station comprises video input interface 547.This interface allows device 100 directly to import recording of video and logging mode as described below is provided from video.
Docking station can be set to three kinds of exemplary patterns and other predictable pattern operations.
1. normal play mode
Normal play mode relates to resetting and is stored in video data on video storage and the replay device 100.The controlling organization that is used for play content is installing 100, or commands by the Long-distance Control of communicating by letter with device 100 or Docking station.
2. propelling pattern
By internet usage interface 535, device can be in the off-peak hours foradownloaded video content such as night.Video content can by the user be used for from the Docking station removal device and or on device 100 view content or watch with information station.
3. logging mode
Another pattern is a logging mode, and it is store video when the user watches program, makes the user can have a rest for a moment or look back the specific part of video when continuing the record input video stream.
F. other DRM features
1. definition
Digital copyright management (DRM) is a kind of system, is used for scattering and/or the illegal distribution of forbidden data is protected the copyright of the data of propagating via the Internet or other Digital Medias by the safety that allows data.Usually, the DRM system by or make it only can make content optionally not scattered the data encryption by the user capture of authorizing or with content-label digital watermarking or similar approach, protect the intellectual property.
For example, subscriber's information module (SIM) is " smart card " of use in GSM type cell phone small-sized, postage-stamp-sized.SIM card comprises microchip, and its storage is used for the data to the call identifying person of Internet Service Provider.In the present invention, SIM is used to discern the network of network user of invention, and alternatively, is used to use DRM with content locking and encryption.
The SIM rod is a kind of SIM that can insert by the standard interface such as USB, serial port or other interfaces in PC or other devices.
Sometimes the mobile storage means (RMD) that is called as key chain driver or usb driver, fast-loop driver or disk-on-key is the plug and play portable memory, it uses fast storage or minidisk driver, and weight is enough gently to be attached to key chain or to be contained in the pocket.Can use RMD to replace floppy disk, Zip driving-disc or CD.When the user inserted RMD in the USB port on the computer, operating system was identified as removable driver with driver.Be different from most of removable drivers, the key chain driver does not need to restart after it is attached, and does not need battery or external power source, and does not rely on platform.A plurality of key chain drive manufacturers provide the supplementary features such as password protection, and Downloadable driver, its allow key chain driver with do not have USB port than the legacy system compatibility.
2.DRM how to work
DRM is by with content-encrypt and comprise that describing content will be protected content by the title of the file how to use.For example, the method of using can comprise: (a) can be viewed to content or the restriction of the number of times play, (b) internally hold effective time quantitative limitation, for example, content no longer can be viewed or be reset certain the time, perhaps (c) user's unrestricted broadcast, for example, content purchase or permanent license method.
The content of DRM protection uses key to lock.This secret key is usually directed to the user name and password or user name and device ID.When by the user name and password when locked, DRM need be connected to the Internet usually, and the method that makes the user name and password to be verified and to use can be verified.This is counted as the online mode of DRM protection.The content viewers application program need know to go to where verifying on the Internet.
Alternatively, DRM can be used with off line or flush mounting pattern.Under this pattern, device provides its oneself checking user and the method for opening content, and does not need to be connected to the Internet.Under this pattern, content is locked into device and only can be used on device.
Under offline mode, comprise information information, associated with the file that file is when viewed, be stored in the protected field on the device.Guarantee that the user capture that the protected field can not be installed is the responsibility of device manufacturer.The viewed person's application program of this information is used, and is used for the DRM method of file with checking before opening file.
3. pass through the identification of SIM rod
The SIM rod has two purposes in network of the present invention.It can be used for the user of the recognition network for the purpose of bill, and alternatively, the device that its content that can be used to discern the DRM protection is connected to.
For example, when being used to discern the user, standard GSM A3 authentication technique is used to prevent swindle.The A3 algorithm is used to differentiate gsm mobile telephone by the GSM network.GSM A3 algorithm is the one-way function of realizing in subscriber's identification module (SIM).Network of the present invention contains the AUC (AuC) that is useful on this purpose.
Yet SIM can also be used for being provided for the device ID of the content of DRM protection under offline mode.In this case, SIM device ID is used for locked content and is stored in SIM about the information of the file of DRM protection.When by specific watch application program (its know use SIM as locking device and know how to handle DRM) when using, even under offline mode, content also can move between device.In this example, a necessary condition is that all use can be from the specific application program of watching of the Internet download for all devices.
4. SIM and the movably distribution of storage device (key) by making up
When with SIM when in key, making up such as the mobile storage means of the quick disk of USB, the user has aforementioned capabilities and another movable fixture of SIM rod, the content of DRM protection can be downloaded to this movable fixture.
Use infestation network of the present invention, the user inserts for example standard USB 2 ports with the SIM and the mobile storage means of combination.Network uses SIM to verify user's identity, and content is locked onto SIM device ID, and the content of locking is downloaded to the memory of key POD.The user has the content of transmitting drm protection under offline mode now and play the facilitated method of this content on multiple arrangement.
5. the distribution by mobile storage means
Even do not have in mobile storage means under the situation of SIM, network of the present invention also can download to storage device with the content of DRM protection.In this case, lack the DRM heading message in the content file.
When the network user of the present invention determined play content, the user must be connected to the Internet and get in touch with video server, to obtain heading message.The user does not need to determine he thinks how to use this content before this.Want how to use this content based on the user, network of the present invention will suitably be presented the bill for the user and be made up the DRM title.For example, the user can want view content three times, perhaps can determine this content can use five days.Alternatively, the user can select the another kind of DRM method that allows.In case heading message is downloaded to the user, content just can be viewed under offline mode.How the postponement decision is bought and/or used the ability of content is unique under offline mode.
In addition, file can be copied and send to other people.Yet other users were not authorized to view content before the expense of getting in touch and paying with video server with the right of the mode view content of deciding through consultation.
G. conclusion
Advantage of the present invention is included in the ability that can betransported or store a plurality of video files in the tight type mancarried device that the position is watched easily.
Described exemplary embodiment and optimal mode, within theme of the present invention that is defined by the claims and spirit, can modify and change the disclosed embodiments.
Claims (15)
1. video storage and replay device comprise:
Storage medium is used to store a plurality of video files;
A plurality of interface ports are used for transmitting video data;
Video encoder/decoder is used for video data encoding and decoding; And
Processor is connected to described storage medium, described a plurality of interface ports and described video encoder/decoder, is used to manage described video file.
2. video storage according to claim 1 and replay device, wherein:
Described processor is used for by storage, demonstration and retrieves described video file and manage described video file.
3. video storage according to claim 2 and replay device further comprise:
Key is used for being connected to of described interface port, and wherein, described key comprises that being used for server carries out the video file coding and be used for the information that described device carries out the video file decoding.
4. video storage according to claim 1 and replay device further comprise:
Information station is used for from server foradownloaded video file, and provides visit to described video file to described device.
5. video storage according to claim 2 and replay device, wherein:
Described video server is used to use the information relevant with described key to discern the subscriber.
6. video storage according to claim 1 and replay device further comprise:
The bill server is used for the video file of being downloaded by described device is kept accounts.
7. a video information station is used for using with video storage and replay device, and described video information station comprises:
Storage medium is used to store a plurality of video files;
Interface port is used for communicating by letter with central video server and being used for from described central video server foradownloaded video data;
At least one interface port is used for carrying out video data communication with described video storage and replay device;
Processor is connected to described storage medium and described interface port, and is used for optionally controlling described storage medium and interface port; And
Video encoder/decoder is used for coming coding video frequency data based on the authorization code relevant with replay device with described video storage at least in part.
8. video information according to claim 7 station, wherein:
Described processor is used for by storage, demonstration and retrieves described video file and manage described video file; And
Described processor be used for by with transfer of data to described central server, and come optionally to give video storage and replay device based on subscription data at least in part with the assigns authorized of video data, differentiate described video storage and replay device.
9. video information according to claim 8 station, wherein:
Described video server is used to use the information relevant with described key to discern described subscriber.
10. video information according to claim 7 station further comprises:
The bill server is used for the video file of being downloaded by described device is kept accounts.
11. video information according to claim 8 station further comprises:
The bill server is used for the video file of being downloaded by described device is kept accounts.
12. a Docking station is used for using with video storage and replay device, described Docking station comprises:
A plurality of interface ports are used for carrying out video data communication with described video storage and replay device and display; And
Authenticate device is used for allowing the described video data of decoding.
13. Docking station according to claim 12, wherein:
Described processor is used for by storage, demonstration and retrieves described video file and manage described video file.
14. Docking station according to claim 12 further comprises:
Key is used for being connected to of described interface port, and wherein, described key comprises that being used for server carries out the video file coding and be used for the information that described device carries out the video file decoding.
15. Docking station according to claim 13, wherein:
Described video server is used to use the information relevant with described key to discern described subscriber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50608803P | 2003-09-24 | 2003-09-24 | |
| US60/506,088 | 2003-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1998234A true CN1998234A (en) | 2007-07-11 |
Family
ID=38252277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480027703 Pending CN1998234A (en) | 2003-09-24 | 2004-09-24 | Portable video storage and playback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1998234A (en) |
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2004
- 2004-09-24 CN CN 200480027703 patent/CN1998234A/en active Pending
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