Global patent index - EP 1027649 A1

EP 1027649 A1 2000-08-16 - METHOD OF EMULATING A SHIFT REGISTER USING A RAM

Title (en)

METHOD OF EMULATING A SHIFT REGISTER USING A RAM

Title (de)

VERFAHREN ZUM EMULIEREN EINES SCHIEBEREGISTERS UNTER BENUTZUNG EINES RAM'S

Title (fr)

PROCEDE D'EMULATION D'UN REGISTRE A DECALAGE AU MOYEN D'UNE MEMOIRE RAM

Publication

EP 1027649 A1 (EN)

Application

EP 98947185 A

Priority

  • US 9819708 W
  • US 94746797 A

Abstract (en)

[origin: WO9919798A1] A method using a RAM (10) and a short shift register (20) to emulate a long shift register to store a stream of incoming bits. A pointer points to one of the RAM registers. To store an incoming bit, the contents of the RAM register pointed to by the pointer are written to the shift register (20) and shifted by one bit, the incoming bit is stored in the location in the shift register (20) freed up by the shift operation, the updated contents of the shift register (20) are written back to the RAM register pointed to by the pointer, and the pointer is incremented.

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

G06F 9/445; G06F 5/06

IPC 8 full level (invention and additional information)

G11C 19/00 (2006.01); G06F 5/08 (2006.01); G06F 5/10 (2006.01)

CPC (invention and additional information)

G06F 5/10 (2013.01); G06F 5/08 (2013.01); G06F 2205/104 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 9919798 A1 19990422; AU 9402098 A 19990503; CN 1119745 C 20030827; CN 1281559 A 20010124; EP 1027649 A1 20000816; EP 1027649 A4 20040804; JP 2001520429 A 20011030

INPADOC legal status

2005-03-30 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040909

2004-08-04 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20040623

2004-08-04 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7G 06F 9/445 A

2004-08-04 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7G 06F 5/06 B

2001-10-10 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: INFINEON TECHNOLOGIES AG

- Ref Legal Event Code: RAP1

2000-08-16 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000504

2000-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT