Global Patent Index - EP 1163596 A1

EP 1163596 A1 2001-12-19 - METHODS AND APPARATUS FOR FACILITATING DIRECT MEMORY ACCESS

Title (en)

METHODS AND APPARATUS FOR FACILITATING DIRECT MEMORY ACCESS

Title (de)

VERFAHREN UND GERÄT UM DIREKTEN SPEICHERZUGRIFF ZU ERLEICHTERN

Title (fr)

PROCEDES ET APPAREIL DESTINES A FACILITER L'ACCES MEMOIRE DIRECT

Publication

EP 1163596 A1 (EN)

Application

EP 00911873 A

Priority

  • US 0004247 W
  • US 12102299 P

Abstract (en)

[origin: WO0051004A1] Methods and apparatus for facilitating a direct memory access in a computing system are disclosed. In one embodiment (Figure), a computing system (100) having a central processing unit (CPU) (114) and a main system memory (106), a DMA engine (110) coupled to CPU (114) performs a first DMA process that identifies a desired data set. Once identified, the DMA engine (110) moves the identified desired data set from a main system memory (106) to a memory segment (115) that is temporally closer to the process or (114) than is the main system memory (106).

IPC 1-7 (main, further and additional classification)

G06F 13/28

IPC 8 full level (invention and additional information)

G06F 13/28 (2006.01)

CPC (invention and additional information)

G06F 13/28 (2013.01)

Designated contracting state (EPC)

DE FR GB IE IT

EPO simple patent family

WO 0051004 A1 20000831; AU 3369700 A 20000914; CN 1153153 C 20040609; CN 1352773 A 20020605; EP 1163596 A1 20011219; EP 1163596 A4 20041201; JP 2002538522 A 20021112

INPADOC legal status


2006-01-04 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050628

2005-03-30 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050214

2004-12-01 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20041015

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB IE IT

2001-12-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010803

2001-12-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-12-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI