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Extract from the Register of European Patents

EP About this file: EP0480193

EP0480193 - Multi-prediction branch prediction mechanism [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  02.01.1995
Database last updated on 29.06.2024
Most recent event   Tooltip02.01.1995Change or deletion - application deemed withdrawnpublished on 22.02.1995 [1995/08]
Applicant(s)For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
[N/P]
Former [1992/16]For all designated states
International Business Machines Corporation
Old Orchard Road
Armonk, N.Y. 10504 / US
Inventor(s)01 / Emma, Philip George
55 Mill Plain Road 24-3
Danbury, Connecticut 06811 / US
02 / Knight, Joshua Wilson
3490 Sagamore Avenue
Mohegan Lake, New York 10547 / US
03 / Pomerene, James Herbert
403 N. Bedford Road
Chappaqua, New York 10514 / US
04 / Puzak, Thomas Roberts
9 School House Place
Ridgefield, Connecticut 06877 / US
05 / Rechtschaffen, Rudolph Nathan
24 Innes Road
Scarsdale, New York 10583 / US
06 / Robinson, James Robert
R.R. 2 Box 319
Clinton Corners, New York 12514 / US
07 / Van Norstrand, Albert James, Jr.
3 Grandmour Drive
Red Hook, New York 12571 / US
[1992/16]
Representative(s)Jost, Ottokarl
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
70548 Stuttgart / DE
[N/P]
Former [1992/16]Jost, Ottokarl, Dipl.-Ing.
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart / DE
Application number, filing date91115459.912.09.1991
[1992/16]
Priority number, dateUS1990059452909.10.1990         Original published format: US 594529
[1992/16]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0480193
Date:15.04.1992
Language:EN
[1992/16]
Type: A3 Search report 
No.:EP0480193
Date:14.09.1994
Language:EN
[1994/37]
Search report(s)(Supplementary) European search report - dispatched on:EP01.08.1994
ClassificationIPC:G06F9/38
[1992/16]
CPC:
G06F9/3806 (EP,US); G06F9/3848 (EP,US)
Designated contracting statesDE,   FR,   GB [1992/16]
TitleGerman:Verzweigungsvorhersagemechanismus mit mehreren Voraussagen[1992/16]
English:Multi-prediction branch prediction mechanism[1992/16]
French:Mécanisme de prédiction de branchements multiprédictif[1992/16]
File destroyed:31.08.2001
Examination procedure31.03.1994Application deemed to be withdrawn, date of legal effect  [1995/08]
29.04.1994Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [1995/08]
Fees paidPenalty fee
Additional fee for renewal fee
30.09.199303   M06   Not yet paid
30.09.199404   M06   Not yet paid
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[XY]EP0320098  (INT COMPUTERS LTD [GB]) [X] 1 * page 3, line 5 - line 19 * * page 3, line 47 - line 53 * * page 4, line 50 - line 55 * * page 5, line 40 - page 6, line 16 * [Y] 2-7;
 [Y]EP0227892  (IBM [US]) [Y] 2-7 * page 4, line 17 - line 31 * * page 8A, line 14 - line 19 * * figures 1A,1B *;
 [XY]EP0229619  (NEC CORP [JP]) [X] 1 * figures 1A,1B,1C * * see Abstract * [Y] 2-7;
 [Y]EP0318778  (IBM [US]) [Y] 2-7 * page 4, line 22 - page 6, line 2 *;
 [DY]US4477872  (LOSQ JACQUES J [US], et al) [DY] 3-7 * figure 3 * * See Abstract *;
 [A]EP0381444  (DIGITAL EQUIPMENT CORP [US]) [A] 1-7 * page 2, line 34 - line 39 *;
 [XY]  - G.S. RAO, "Technique for minimizing branch delay due to incorrect branch history table predictions", IBM TECHNICAL DISCLOSURE BULLETIN, (198206), vol. 25, no. 1, pages 97 - 98 [X] 1 * whole document * [Y] 2-7
 [Y]  - "Decode Branch History Table", IBM TECHNICAL DISCLOSURE BULLETIN, (198210), vol. 25, no. 5, pages 2396 - 2398 [Y] 3-7 * whole document *
 [A]  - J.K.F. LEE AND A.J. SMITH, "Branch prediction strategies and branch target buffer design", COMPUTER, US, (198401), vol. 17, no. 1, pages 6 - 22, XP000211855 [A] 1-7 * page 12, paragraph 3 - page 13, paragraph L *

DOI:   http://dx.doi.org/10.1109/MC.1984.1658927
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.