Title:
SELECTABLE PROCESSION / DECOMPRESSION FOR DATA STORED IN MEMORY
Document Type and Number:
WIPO Patent Application WO2004092960
Kind Code:
A3
Abstract:
Data, such as an image, is made up of data-items (pixels) that are each associated with a respective data address. Compressed blocks representing the data are stored in a memory system. Each block representing compressed data-items associated with data addresses in a respective sub-range of addresses of the data. Each block starts from a respective preferred starting address for multi address transfer. The sub-range of addresses of each block has a length corresponding to an address distance between the preferred starting address, leaving memory addresses not occupied by the particular block in between blocks due to compression. A decompressor is coupled between a processing element and the memory system. The decompressor starts a multi address memory transfer of a required one of the blocks from the memory system dynamically when the processing element requires access to the block, leaving memory addresses directly following the block up to a preferred starting address for a next one of the blocks untransferred in the transfer. The transferred data is decompressed and passed to the processor.
More Like This:
| JPS63136172 | IMAGE PROCESSING METHOD |
| JPS58217065 | STORING SYSTEM |
Inventors:
RIEMENS ABRAHAM K (NL)
VAN DER VLEUTEN RENATUS J (NL)
VAN DER WOLF PIETER (NL)
VAN DER VLEUTEN RENATUS J (NL)
VAN DER WOLF PIETER (NL)
Application Number:
PCT/IB2004/050426
Publication Date:
June 22, 2006
Filing Date:
April 13, 2004
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
RIEMENS ABRAHAM K (NL)
VAN DER VLEUTEN RENATUS J (NL)
VAN DER WOLF PIETER (NL)
RIEMENS ABRAHAM K (NL)
VAN DER VLEUTEN RENATUS J (NL)
VAN DER WOLF PIETER (NL)
International Classes:
G06F12/02; G06F12/08; G06F12/0802; H03M7/30
Foreign References:
| US6175896B1 | 2001-01-16 | |||
| US6263413B1 | 2001-07-17 | |||
| US5392417A | 1995-02-21 | |||
| US5864859A | 1999-01-26 |
Other References:
WELCH T A: "A TECHNIQUE FOR HIGH-PERFORMANCE DATA COMPRESSION", COMPUTER, IEEE SERVICE CENTER, LOS ALAMITOS, CA, US, vol. 17, no. 6, 1 June 1984 (1984-06-01), pages 8 - 19, XP000673349, ISSN: 0018-9162
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