Extract from the Register of European Patents

EP About this file: EP1405179

EP1405179 - ENHANCING MERGEABILITY OF DATAPATHS AND REDUCING DATAPATH WIDTHS RESPONSIVELY TO REQUIRED PRECISION [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  27.04.2012
Database last updated on 16.04.2026
Most recent event   Tooltip27.04.2012Application deemed to be withdrawnpublished on 30.05.2012  [2012/22]
Applicant(s)For all designated states
Cadence Design Systems, Inc.
2655 Seely Road, MS/5B1
San Jose, CA 95134 / US
For all designated states
Mathur, Anmol
4046 Cranford Circle
San Jose, CA 95124 / US
[N/P]
Former [2004/18]For all designated states
Cadence Design Systems, Inc.
2655 Seely Road, MS/5B1
San Jose, CA 95134 / US
For all designated states
Mathur, Anmol
4046 Cranford Circle
San Jose, CA 95124 / US
Former [2004/15]For all designated states
Cadence Design Systems, Inc.
2655 Seely Road, MS/5B1
San Jose, CA 95134 / US
For all designated states
Saluja, Sanjeev
J-65, Sector 25, Jalvayu Vihar
201301 Noida (U.P.) / IN
Inventor(s)01 / SALUJA, Sanjeev
J-65, Sector 25, Jalvayu Vihar
201301 Noida (U.P.) / IN
02 / MATHUR, Anmol
4046 Cranford Circle
san Jose, CA 95124 / US
 [2004/18]
Former [2004/15]01 / SALUJA, Sanjeev
J-65, Sector 25, Jalvayu Vihar
201301 Noida (U.P.) / IN
Representative(s)Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte
Grillparzerstrasse 14
81675 München / DE
[N/P]
Former [2004/15]Viering, Jentschura & Partner
Postfach 22 14 43
80504 München / DE
Application number, filing date02737524.517.06.2002
[2004/15]
WO2002US19139
Priority number, dateUS20010298536P15.06.2001         Original published format: US 298536 P
[2004/15]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO02103515
Date:27.12.2002
Language:EN
[2002/52]
Type: A1 Application with search report 
No.:EP1405179
Date:07.04.2004
Language:EN
The application published by WIPO in one of the EPO official languages on 27.12.2002 takes the place of the publication of the European patent application.
[2004/15]
Search report(s)International search report - published on:US27.12.2002
(Supplementary) European search report - dispatched on:EP30.08.2007
ClassificationIPC:G06F9/44, G06F17/50
[2007/40]
CPC:
G06F8/443 (EP,US); G06F30/30 (EP,US); G06F9/44 (EP,US)
Former IPC [2004/15]G06F9/44
Designated contracting statesAT,   BE,   CH,   CY,   DE,   DK,   ES,   FI,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE,   TR [2004/15]
Extension statesALNot yet paid
LTNot yet paid
LVNot yet paid
MKNot yet paid
RONot yet paid
SINot yet paid
TitleGerman:VERBESSERUNG DER ZUSAMMENFÜRBARKEIT VON DATENWEGEN UND VERRINGERUNG VON DATENWEGBREITEN ALS REAKTION AUF EINE GEFORDERTE PRÄZISION[2004/15]
English:ENHANCING MERGEABILITY OF DATAPATHS AND REDUCING DATAPATH WIDTHS RESPONSIVELY TO REQUIRED PRECISION[2004/15]
French:AMELIORATION DE LA CAPACITE DE FUSION DE CHEMINS DE DONNEES ET REDUCTION DE LARGEURS DE CHEMINS DE DONNEES EN REPONSE A UNE PRECISION REQUISE[2004/15]
Entry into regional phase23.12.2003National basic fee paid 
23.12.2003Search fee paid 
23.12.2003Designation fee(s) paid 
23.12.2003Examination fee paid 
Examination procedure14.01.2003Request for preliminary examination filed
International Preliminary Examining Authority: US
23.12.2003Amendment by applicant (claims and/or description)
23.12.2003Examination requested  [2004/15]
30.05.2011Despatch of a communication from the examining division (Time limit: M06)
10.12.2011Application deemed to be withdrawn, date of legal effect  [2012/22]
13.01.2012Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2012/22]
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  30.05.2011
Fees paidRenewal fee
04.06.2004Renewal fee patent year 03
06.06.2005Renewal fee patent year 04
27.03.2006Renewal fee patent year 05
08.06.2007Renewal fee patent year 06
18.03.2008Renewal fee patent year 07
26.06.2009Renewal fee patent year 08
25.06.2010Renewal fee patent year 09
27.06.2011Renewal fee patent year 10
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Documents cited:Search[A]   KUM K-I ET AL: "Word-length optimization for high-level synthesis of digital signal processing systems", SIGNAL PROCESSING SYSTEMS, 1998. SIPS 98. 1998 IEEE WORKSHOP ON CAMBRIDGE, MA, USA 8-10 OCT. 1998, NEW YORK, NY, USA,IEEE, US, 8 October 1998 (1998-10-08), pages 569 - 578, XP010303719, ISBN: 0-7803-4997-0 [A] 1,8 * page 571, line 23 - page 575, line 6 * * figure 2 *

DOI:   http://dx.doi.org/10.1109/SIPS.1998.715819
 [A]   CONSTANTINIDES G A ET AL: "Heuristic datapath allocation for multiple wordlength systems", DESIGN, AUTOMATION AND TEST IN EUROPE, 2001. CONFERENCE AND EXHIBITION 2001. PROCEEDINGS 13-16 MARCH 2001, PISCATAWAY, NJ, USA,IEEE, 13 March 2001 (2001-03-13), pages 791 - 796, XP010538286, ISBN: 0-7695-0993-2 [A] 1,8 * paragraphs [0002] - [02.4] * * figure 2 *
 [A]   TOGAWA N ET AL: "A high-level synthesis system for digital signal processing based on enumerating data-flow graphs", DESIGN AUTOMATION CONFERENCE 1998. PROCEEDINGS OF THE ASP-DAC '98. ASIA AND SOUTH PACIFIC YOKOHAMA, JAPAN 10-13 FEB. 1998, NEW YORK, NY, USA,IEEE, US, 10 February 1998 (1998-02-10), pages 265 - 274, XP010275930, ISBN: 0-7803-4425-1 [A] 1,8 * page 266, column 2, line 22 - page 267, column 1, line 21 * * page 268, column 1, line 37 - column 2, line 2 * * figure 3 *

DOI:   http://dx.doi.org/10.1109/ASPDAC.1998.669463
 [PX]   MATHUR A ET AL: "Improved merging of datapath operators using information content and required precision analysis", PROCEEDINGS OF THE 38TH. ANNUAL DESIGN AUTOMATION CONFERENCE. (DAC). LAS VEGAS, NV, JUNE 18 - 22, 2001, PROCEEDINGS OF THE DESIGN AUTOMATION CONFERENCE, NEW YORK, NY : ACM, US, vol. CONF. 38, 18 June 2001 (2001-06-18), pages 462 - 467, XP010552432, ISBN: 1-58113-297-2 [PX] 1-16 * the whole document *

DOI:   http://dx.doi.org/10.1145/378239.378562
International search[A]   KOCH: "Structured design implementation - a strategy for implementing regular datapath on FPGAs", ACM, 1996, pages 151 - 157, XP002956422 [A]

DOI:   http://dx.doi.org/10.1145/228370.228392
 [A]   RUNDENSTEINER ET AL.: "Functional synthesis using area and delay optimization", IEEE, 1992, pages 291 - 296, XP010028936 [A]

DOI:   http://dx.doi.org/10.1109/DAC.1992.227790
 [A]   KLAUSER ET AL.: "Instruction fetch mechanism for multipath execution processors", IEEE, 1999, pages 38 - 47, XP010364937 [A]

DOI:   http://dx.doi.org/10.1109/MICRO.1999.809441
 [A]   RUDOLPH ET AL.: "Test scheduling and controller synthesis in the CADDY-system", IEEE, 1991, pages 278 - 282, XP002956415 [A]
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