WO1999009467A2 - A transient datastream-processing buffer memory organization with software management adapted for multilevel housekeeping - Google Patents
A transient datastream-processing buffer memory organization with software management adapted for multilevel housekeeping Download PDFInfo
- Publication number
- WO1999009467A2 WO1999009467A2 PCT/IB1998/001143 IB9801143W WO9909467A2 WO 1999009467 A2 WO1999009467 A2 WO 1999009467A2 IB 9801143 W IB9801143 W IB 9801143W WO 9909467 A2 WO9909467 A2 WO 9909467A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sbm
- housekeeping
- datastream
- organization
- data
- Prior art date
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 38
- 230000008520 organization Effects 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 title claims abstract description 11
- 230000001052 transient effect Effects 0.000 title description 2
- 238000013507 mapping Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
- G06F5/06—Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor
-
- 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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
-
- 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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99951—File or database maintenance
- Y10S707/99952—Coherency, e.g. same view to multiple users
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99951—File or database maintenance
- Y10S707/99952—Coherency, e.g. same view to multiple users
- Y10S707/99953—Recoverability
Definitions
- Figure 1 exemplary hardware for thereon mapping the organization
- Figure 2 an example of a data flow organization
- Figure 3 an exemplary sector header format
- Figure 4 an exemplary user data format of an audio sector.
- Subsequent writing of the data to other buffers is generally executed through logical assigning of the data as will be discussed hereinafter. If applicable, read-modify-write memory cycles can be executed, in which case there is physical data transport between processing facility and memory. Furthermore, module 22 may perform error checking on the data, and if necessary and feasible, error correction. Upon finding or reaching an appropriate level of correctness, user data are presented to decryption control module 51. These user data exclude sector headers and error checking information ECC. Next to decryption control module 51, the corrected data are assigned to buffer 30, that is used for a pre-navigation feature.
- Figure 3 shows an exemplary sector format; this pertains to the format as relevant on interface 20.
- a sector contains a sector header, that delimits the sector, indicates a time value, an identifier, and possibly other parameters that may be used for subsequently organizing the storage proper.
- Part 54 contains error protection code, such as the redundancy symbols of a Reed-Solomon code that can be used for correcting a percentage of the symbols that have been received in an incorrect manner. After executing the correction, part 54 generally is of no use for further processing.
- the header and ECC information are sequestered and not used in subsequent accessing.
- Figure 4 shows an exemplary user data format of an audio sector.
- the sector contains two packets of audio data, that each comprise a relevant packet header information, and two parts of the relevant audio data.
- the number of audio parts may be different, and their sizes may be non-uniform.
- the function of the headers on this level may be variable.
- the header information is sequestered and not used in subsequent accessing.
- Other decoder types may use the header for easier delimitation of the information.
- Capacity of a DVD disc 14 GByte Input data rate: 11 Mb it/ sec Buffer size indications: SBM ERRCHECK 10 KByte SBM_VBR 500 KByte SBM_PRENAV 20 KByte SBM_AUDIO 20 KByte SBM VIDEO 250 KByte SBM_SUBPIC 64 KByte SBM_POSTNAV 20 KByte SBM_SUBCODE 1 KByte SBM_VID_USER_DATA 5 KByte
- the SBM controls all buffer accesses in a manner that is invisible for producer as well as for consumer processes, and in particular controls:
- SBM determines if it is a NAV pack
- SBM also adds the unit to the list of SBM_PRENAV with range indication [X,N-Y) and increments the number of references to the unit again
- DMX requests SBM to copy S bytes from SBMJVBR to SBM POSTNAV
- an audio decoder requires a PES stream: • when DMX discovers audio packets in SBM_VBR, it can request SBM to copy them completely to SBM_AUDIO
- SBM adds the unit to this list of SBM_AUDIO and increments the number of references to the unit (this means that the same unit is referenced multiple times from the same buffer; also see note below)
- SBM sets the range indication in the SBM_AUDIO buffer to [X+S1 +Q2,X+S1 +S2) • note that in this example, X+SH-S2 equals N-Y
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51295699A JP2001505752A (en) | 1997-08-20 | 1998-07-27 | Temporary data stream processing buffer memory organization with software management adapted for multiple levels of housekeeping |
EP98932463A EP0932862A2 (en) | 1997-08-20 | 1998-07-27 | A transient datastream-processing buffer memory organization with software management adapted for multilevel housekeeping |
KR1019997003402A KR100594953B1 (en) | 1997-08-20 | 1998-07-27 | A transient datastream-processing buffer memory organization with software management adapted for multilevel housekeeping |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97202555.5 | 1997-08-20 | ||
EP97202555 | 1997-08-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999009467A2 true WO1999009467A2 (en) | 1999-02-25 |
WO1999009467A3 WO1999009467A3 (en) | 1999-05-06 |
Family
ID=8228651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1998/001143 WO1999009467A2 (en) | 1997-08-20 | 1998-07-27 | A transient datastream-processing buffer memory organization with software management adapted for multilevel housekeeping |
Country Status (6)
Country | Link |
---|---|
US (1) | US6230163B1 (en) |
EP (1) | EP0932862A2 (en) |
JP (1) | JP2001505752A (en) |
KR (1) | KR100594953B1 (en) |
TW (1) | TW432321B (en) |
WO (1) | WO1999009467A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803470A1 (en) * | 1999-12-30 | 2001-07-06 | Thomson Multimedia Sa | METHOD FOR MANAGING A MEMORY IN A TELEVISION RECEIVER AND TELEVISION RECEIVER |
US7930711B2 (en) * | 2003-03-06 | 2011-04-19 | Wegener Communications, Inc. | Apparatus and method for addressing control in a network for distributed data |
US7020689B2 (en) | 2003-03-07 | 2006-03-28 | Wegener Communications, Inc. | System and method for command transmission utilizing an email return path |
US7296204B2 (en) * | 2003-05-30 | 2007-11-13 | Wegener Communications, Inc. | Error correction apparatus and method |
US7206411B2 (en) | 2003-06-25 | 2007-04-17 | Wegener Communications, Inc. | Rapid decryption of data by key synchronization and indexing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5237661A (en) * | 1989-05-29 | 1993-08-17 | Hitachi, Ltd. | Buffer management method and system therefor using an I/O buffer on main memory and utilizing virtual memory and page fixing |
EP0684562A1 (en) * | 1994-05-16 | 1995-11-29 | Compaq Computer Corporation | Method for allocating high memory in a personal computer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7713708A (en) | 1977-12-12 | 1979-06-14 | Philips Nv | INFORMATION BUFFER MEMORY OF THE "FIRST-IN, FIRST-OUT" TYPE WITH FIXED INPUT AND VARIABLE OUTPUT. |
NL7713706A (en) | 1977-12-12 | 1979-06-14 | Philips Nv | INFORMATION BUFFER MEMORY OF THE "FIRST-IN, FIRST-OUT" TYPE WITH A VARIABLE INPUT AND A VARIABLE OUTPUT. |
NL7713707A (en) | 1977-12-12 | 1979-06-14 | Philips Nv | INFORMATION BUFFER MEMORY OF THE "FIRST-IN, FIRST-OUT" TYPE WITH VARIABLE INPUT AND FIXED OUTPUT. |
JP2521016B2 (en) * | 1991-12-31 | 1996-07-31 | インターナショナル・ビジネス・マシーンズ・コーポレイション | Multimedia data processing system |
US5652613A (en) * | 1995-06-07 | 1997-07-29 | Lazarus; David Beryl | Intelligent electronic program guide memory management system and method |
JP3617879B2 (en) * | 1995-09-12 | 2005-02-09 | 株式会社東芝 | Disk repair method and disk repair device for real-time stream server |
US5847762A (en) * | 1995-12-27 | 1998-12-08 | Thomson Consumer Electronics, Inc. | MPEG system which decompresses and then recompresses MPEG video data before storing said recompressed MPEG video data into memory |
US6023233A (en) * | 1998-03-20 | 2000-02-08 | Craven; Peter G. | Data rate control for variable rate compression systems |
-
1998
- 1998-07-27 WO PCT/IB1998/001143 patent/WO1999009467A2/en not_active Application Discontinuation
- 1998-07-27 JP JP51295699A patent/JP2001505752A/en not_active Ceased
- 1998-07-27 KR KR1019997003402A patent/KR100594953B1/en not_active IP Right Cessation
- 1998-07-27 EP EP98932463A patent/EP0932862A2/en not_active Ceased
- 1998-08-14 US US09/134,106 patent/US6230163B1/en not_active Expired - Fee Related
- 1998-08-26 TW TW087114087A patent/TW432321B/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5237661A (en) * | 1989-05-29 | 1993-08-17 | Hitachi, Ltd. | Buffer management method and system therefor using an I/O buffer on main memory and utilizing virtual memory and page fixing |
EP0684562A1 (en) * | 1994-05-16 | 1995-11-29 | Compaq Computer Corporation | Method for allocating high memory in a personal computer |
Non-Patent Citations (4)
Title |
---|
COMPUTER NETWORKS, ARCHITECTURE AND APPLICATIONS, PROCEEDINGS OF THE IFIP TC6 CONFERENCE 1994, Jan. 1995, (London), RAGHAVAN R.V. et al., ISBN:0-412-71190-7. pages: 285-303 XP002982333 * |
IEEE COMPUTER AND COMMUNICATIONS SOCIETIES, Volume 3, 1997, KIEN A. HUA et al., "Earthworm: A Network Memory Management Technique for Large-Scale Distributed Multimedia Appications". pages: 990-997 XP001055967 * |
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, Volume 43, No. 3, August 1997, M. YASUDA et al., "MPEG2 Video Decoder and AC-3 Audio Decoder LSIs for DVD Player". pages: 462-467 XP000742518 * |
See also references of EP0932862A2 * |
Also Published As
Publication number | Publication date |
---|---|
TW432321B (en) | 2001-05-01 |
KR100594953B1 (en) | 2006-07-03 |
WO1999009467A3 (en) | 1999-05-06 |
JP2001505752A (en) | 2001-04-24 |
KR20000068786A (en) | 2000-11-25 |
US6230163B1 (en) | 2001-05-08 |
EP0932862A2 (en) | 1999-08-04 |
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