| 54 |
Titel |
TI |
[EN] Method of operand width reduction to enable usage of narrower saturation adder |
| 71/73 |
Anmelder/Inhaber |
PA |
IBM, US
|
| 72 |
Erfinder |
IN |
GEMMEKE TOBIAS, DE
;
LEENSTRA JENS, DE
;
MAEDING NICOLAS, DE
;
SCHELM KERSTIN, DE
|
| 22/96 |
Anmeldedatum |
AD |
15.11.2006 |
| 21 |
Anmeldenummer |
AN |
56016506 |
|
Anmeldeland |
AC |
US |
|
Veröffentlichungsdatum |
PUB |
14.06.2011 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
EP
05112559
20051221
|
| 51 |
IPC-Hauptklasse |
ICM |
G06F 7/00
(2006.01)
|
| 51 |
IPC-Nebenklasse |
ICS |
G06F 15/00
(2006.01)
G06F 7/38
(2006.01)
G06F 7/50
(2006.01)
|
|
IPC-Zusatzklasse |
ICA |
|
|
IPC-Indexklasse |
ICI |
|
|
Gemeinsame Patentklassifikation |
CPC |
G06F 7/49921
|
|
MCD-Hauptklasse |
MCM |
G06F 7/00
(2006.01)
|
|
MCD-Nebenklasse |
MCS |
G06F 15/00
(2006.01)
G06F 7/38
(2006.01)
G06F 7/50
(2006.01)
|
|
MCD-Zusatzklasse |
MCA |
|
| 57 |
Zusammenfassung |
AB |
[EN] An electronic computing circuit for implementing a method for reducing the bit width of two operands from a bit length N to a reduced bit length M, thus, M<N. To enable a wider re-usage of existing designs or building blocks being all specialized to the usual bit length of a power of 2 (8, 16, 32, 64 etc.), the chip structure of which is already highly optimized in regard of speed and space savings, a circuit is implemented as an addend width reduction circuit to perform the steps of: receiving said two N-bit operands as an input, adding the (N−M+1) most significant bits of said two N-bit operands separately in an auxiliary adder logic, calculating at least the two most significant bits of reduced-bit-length output operands in a decision logic processing the add result of said auxiliary adder logic, such that a predetermined post-processing can be correctly performed with said output operands. |
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt |
CT |
US000004819198A
US000005623423A
US000005835782A
US000006732126B1
|
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt |
CT |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt |
CTNP |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt |
CTNP |
|
|
Zitierende Dokumente |
|
Dokumente ermitteln
|
|
Sequenzprotokoll |
|
|
|
Prüfstoff-IPC |
ICP |
G06F 7/499
|
