Title:
DIGITAL SIGNAL PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO2005024542
Kind Code:
A3
Abstract:
The invention relates to a digital signal processing device comprising: input storage means (3; 5); a computational device (4) that is connected to said means, defines a data path (9) and contains at least one arithmetic unit (6) in addition to a control input (2a) for specifying calculation operations; and output storage means (8). The data path (9) between the arithmetic unit (6; 7) and the output storage means (8) is equipped with a number-format conversion unit (10) comprising a shift unit (17). A number-format specification unit (11) and a control unit (17'), which is connected to the latter and calculates required shift operations on the basis of the number-format specification, are assigned to the number-format conversion unit (10). Formatting operations are calculated automatically using input and output format information and corresponding commands are applied to the shift unit (17).
Inventors:
HAHN ALOIS (AT)
VACLAVIK PREMYSL (AT)
KROTTENDORFER HEINZ GERALD (AT)
TIRINGER CHRISTIAN (AT)
VACLAVIK PREMYSL (AT)
KROTTENDORFER HEINZ GERALD (AT)
TIRINGER CHRISTIAN (AT)
Application Number:
PCT/AT2004/000305
Publication Date:
May 26, 2005
Filing Date:
September 07, 2004
Export Citation:
Assignee:
ON DEMAND MICROELECTRONICS GMB (AT)
HAHN ALOIS (AT)
VACLAVIK PREMYSL (AT)
KROTTENDORFER HEINZ GERALD (AT)
TIRINGER CHRISTIAN (AT)
HAHN ALOIS (AT)
VACLAVIK PREMYSL (AT)
KROTTENDORFER HEINZ GERALD (AT)
TIRINGER CHRISTIAN (AT)
International Classes:
G06F5/01; G06F7/57; H03M7/24; G06F7/544; (IPC1-7): G06F5/01; G06F7/48
Foreign References:
| US5764549A | 1998-06-09 | |||
| US6564238B1 | 2003-05-13 | |||
| US6535900B1 | 2003-03-18 | |||
| US5144572A | 1992-09-01 | |||
| US20010039557A1 | 2001-11-08 | |||
| US5666300A | 1997-09-09 | |||
| US5907498A | 1999-05-25 |
Other References:
SEEHYUN KIM ET AL: "Fixed-point optimization utility for C and C++ based digital signal processing programs", VLSI SIGNAL PROCESSING, VIII, 1995. IEEE SIGNAL PROCESSING SOCIETY YWORKSHOP ON SAKAI, JAPAN 16-18 SEPT. 1995, NEW YORK, NY, USA,IEEE, US, 16 September 1995 (1995-09-16), pages 197 - 206, XP010193918, ISBN: 0-7803-2612-1
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