Inventor · disambiguated record
Rolf Hilgendorf
Also filed as: HILGENDORF ROLF · HILGENDORF ROLF B · HILGENDORF ROLF BERNHARD
17 granted patents·2 pending applications·367 citations·filing 1991–2009
94Inventor score
Top patents by PatentIndex Score
19 records- 0186US7376875B2Method of improving logical built-in self test (LBIST) AC fault isolationsIBM·Filed 2005·Granted May 20, 2008·13 cites·4 claims
- 0278US7602874B2Providing accurate time-based counters for scaling operating frequencies of microprocessorsIBM·Filed 2006·Granted Oct 13, 2009·8 cites·18 claims
- 0375US7890782B2Dynamic power management in an execution unit using pipeline wave flow controlIBM·Filed 2008·Granted Feb 15, 2011·5 cites·12 claims
- 0475US5355455AMethod and apparatus for avoiding deadlock in a computer system with two or more protocol-controlled buses interconnected by a bus adaptorIBM·Filed 1993·Granted Oct 11, 1994·67 cites·8 claims
- 0574US5974543AApparatus and method for performing subroutine call and return operationsIBM·Filed 1998·Granted Oct 26, 1999·79 cites·29 claims
- 0673US6986027B2Universal load address/value prediction using stride-based pattern history and last-value prediction in a two-level table schemeIBM·Filed 2001·Granted Jan 10, 2006·19 cites·9 claims
- 0769US5925124ADynamic conversion between different instruction codes by recombination of instruction elementsIBM·Filed 1997·Granted Jul 20, 1999·63 cites·20 claims
- 0866US5524270ASystem for transferring data between asynchronous data buses with a data buffer interposed in between the buses for synchronization of devices timed by different clocksIBM·Filed 1993·Granted Jun 4, 1996·46 cites·11 claims
- 0957US7865749B2Method and apparatus for dynamic system-level frequency scalingIBM·Filed 2003·Granted Jan 4, 2011·5 cites·18 claims
- 1053US7646838B2Providing accurate time-based counters for scaling operating frequencies of microprocessorsIBM·Filed 2008·Granted Jan 12, 2010·0 cites·16 claims
- 1152US6967510B2Time-base implementation for correcting accumulative error with chip frequency scalingIBM·Filed 2003·Granted Nov 22, 2005·2 cites·17 claims
- 1252US5930491AIdentification of related instructions resulting from external to internal translation by use of common ID field for each groupIBM·Filed 1997·Granted Jul 27, 1999·26 cites·20 claims
- 1351US8230440B2System and method to distribute accumulated processor utilization charges among multiple threadsGENDEN MICHAEL JOSEPH·Filed 2009·Granted Jul 24, 2012·1 cites·17 claims
- 1447US7321247B2Timer facility for high frequency processors with minimum dependency of processor frequency modesIBM·Filed 2004·Granted Jan 22, 2008·0 cites·13 claims
- 1545US2008189584A1System and apparatus for improving logical built-in self test (lbist) ac fault isolationsHILGENDORF ROLF·Filed 2008·Application pending·0 cites
- 1643US2004260960A1Method for pulse train reduction of clocking power when switching between full clocking power and nap modeIBM·Filed 2003·Application pending·0 cites
- 1742US6989696B2System and method for synchronizing divide-by countersIBM·Filed 2003·Granted Jan 24, 2006·3 cites·17 claims
- 1842US5317696ABus arbitration schemeIBM·Filed 1991·Granted May 31, 1994·14 cites·12 claims
- 1941US5568407AMethod and system for the design verification of logic units and use in different environmentsIBM·Filed 1995·Granted Oct 22, 1996·16 cites·26 claims
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