EP1295480A2 - Kompressionssystem und -verfahren zum gebrauch in einer set-top-box - Google Patents
Kompressionssystem und -verfahren zum gebrauch in einer set-top-boxInfo
- Publication number
- EP1295480A2 EP1295480A2 EP01948749A EP01948749A EP1295480A2 EP 1295480 A2 EP1295480 A2 EP 1295480A2 EP 01948749 A EP01948749 A EP 01948749A EP 01948749 A EP01948749 A EP 01948749A EP 1295480 A2 EP1295480 A2 EP 1295480A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- images
- format
- jpeg
- mpeg
- gif
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
Definitions
- An image display system includes a web server with web pages containing images in a first format.
- the first format includes a Graphics Interchange Format (GIF), a Joint Photographies Experts Group (JPEG) format and/or a Motion Pictures Experts Group (MPEG) format.
- GIF Graphics Interchange Format
- JPEG Joint Photographies Experts Group
- MPEG Motion Pictures Experts Group
- a distributed communications system is connected to the web server.
- a proxy server is connected to the distributed communications system. The proxy server decompresses the first format images.
- the proxy server converts the first format images to a second format that includes either JPEG or
- FIG. 8A is a flowchart illustrating steps for converting a GIF image with animation into MPEG I-frame(s);
- FIG. 8B is a flowchart illustrating steps for converting a GIF image with translucency into MPEG I-frame(s);
- the set top box 26 is illustrated in further detail and includes an input/output interface 150, a processor 154, and memory 156 that can include random access memory (RAM), read only memory (ROM), and other electronic storage such as a hard drive, a floppy drive, an optical storage device, or any other suitable memory.
- RAM random access memory
- ROM read only memory
- other electronic storage such as a hard drive, a floppy drive, an optical storage device, or any other suitable memory.
- an operating system 160 is loaded into the memory 156.
- a set top box browser 162 is also loaded into the memory 156 when needed.
- the set top box 26 is connected to a broadcast network 163.
- the set top box 26 is connected to the distributed communication system 18 in any of the ways described above with respect to FIG 2A.
- the proxy server 22 creates a first JPEG frame 206 from the GIF image 202.
- a second JPEG frame 208 or a GIF image is created therefrom.
- the area 204 is transparent, a single bit for each pixel is sufficient to describe the transparent mask. In this situation, the transparent information is preferably sent as a GIF image. If the area 204 is translucent, 8 bits or more may be employed to describe the translucency mask for each pixel in the frame 200. In these circumstances, an MPEG I-frame (first embodiment) or JPEG frame (second embodiment) is preferably used.
- control decompresses the GIF image.
- control recovers GIF frames within the GIF image animation.
- control creates an MPEG header and an MPEG I-frame for the frames as previously described.
- control compresses the MPEG I- frame or frames and transmits the MPEG I-frame(s) to the set top box 26 and/or stores the MPEG I-frame(s) at the proxy server 22.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Graphics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60701500A | 2000-06-29 | 2000-06-29 | |
US607015 | 2000-06-29 | ||
PCT/US2001/020413 WO2002003705A2 (en) | 2000-06-29 | 2001-06-27 | Compression system and method for use in a set top box environment |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1295480A2 true EP1295480A2 (de) | 2003-03-26 |
Family
ID=24430432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01948749A Withdrawn EP1295480A2 (de) | 2000-06-29 | 2001-06-27 | Kompressionssystem und -verfahren zum gebrauch in einer set-top-box |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1295480A2 (de) |
WO (1) | WO2002003705A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7831992B2 (en) | 2002-09-18 | 2010-11-09 | General Instrument Corporation | Method and apparatus for forwarding television channel video image snapshots to an auxiliary display device |
WO2004040914A1 (en) * | 2002-11-01 | 2004-05-13 | Nokia Corporation | A method and device for transcoding images |
GB0402482D0 (en) * | 2004-02-04 | 2004-03-10 | Pioneer Digital Design Ct Ltd | Interactive multimedia processing system and method |
US7936933B2 (en) | 2005-11-18 | 2011-05-03 | Microsoft Corporation | Accelerating video data decoding |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3184763B2 (ja) * | 1995-06-07 | 2001-07-09 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | マルチメディア直接アクセス記憶装置及びフォーマット方法 |
US5721878A (en) * | 1995-06-07 | 1998-02-24 | International Business Machines Corporation | Multimedia control system and method for controlling multimedia program presentation |
US6421733B1 (en) * | 1997-03-25 | 2002-07-16 | Intel Corporation | System for dynamically transcoding data transmitted between computers |
US6104441A (en) * | 1998-04-29 | 2000-08-15 | Hewlett Packard Company | System for editing compressed image sequences |
-
2001
- 2001-06-27 EP EP01948749A patent/EP1295480A2/de not_active Withdrawn
- 2001-06-27 WO PCT/US2001/020413 patent/WO2002003705A2/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO0203705A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002003705A3 (en) | 2003-01-23 |
WO2002003705A2 (en) | 2002-01-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030110 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WONG, ANDREW, C. Inventor name: LUE, VINCENT Inventor name: DENMAN, DONN Inventor name: KNITTEL, BRIAN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20031229 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH CY DE FR GB IT LI |