Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2011-04-05
2011-04-05
Lee, Thomas (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
C713S320000, C713S330000, C713S340000, C327S524000, C327S530000
Reexamination Certificate
active
07921312
ABSTRACT:
A system and method is disclosed for providing a plurality of hardware performance monitors for adaptive voltage scaling in an integrated circuit system that comprises a plurality of clock domains. Each hardware performance monitor is associated with one of the plurality of clock domains and provides a signal that measures a performance of its respective clock domain temperature, process corner and supply voltage. The difference between the measured performance and a nominal expected performance for each hardware performance monitor is determined. The largest of the plurality of difference signals is selected and used in an advanced power controller to provide adaptive voltage scaling for the integrated circuit system.
REFERENCES:
patent: 4068159 (1978-01-01), Gyugyi
patent: 4231335 (1980-11-01), Hallberg et al.
patent: 4649334 (1987-03-01), Nakajima
patent: 4829268 (1989-05-01), Leuthold et al.
patent: 5166959 (1992-11-01), Chu et al.
patent: 5264745 (1993-11-01), Woo
patent: 5444381 (1995-08-01), Locher et al.
patent: 5594324 (1997-01-01), Canter et al.
patent: 5638005 (1997-06-01), Rajan et al.
patent: 5812860 (1998-09-01), Horden et al.
patent: 5867012 (1999-02-01), Tuthill
patent: 5926044 (1999-07-01), Niimura
patent: 5929622 (1999-07-01), Kardash
patent: 5941631 (1999-08-01), Hsu
patent: 5943227 (1999-08-01), Bryson et al.
patent: 5969515 (1999-10-01), Oglesbee
patent: 6121758 (2000-09-01), Bellina et al.
patent: 6157247 (2000-12-01), Abdesselem et al.
patent: 6208127 (2001-03-01), Doluca
patent: 6356615 (2002-03-01), Coon et al.
patent: 6369557 (2002-04-01), Agiman
patent: 6405353 (2002-06-01), Maheshwari
patent: 6415388 (2002-07-01), Browning et al.
patent: 6424184 (2002-07-01), Yamamoto et al.
patent: 6456049 (2002-09-01), Tsuji
patent: 6498321 (2002-12-01), Fulmer et al.
patent: 6535735 (2003-03-01), Underbrink et al.
patent: 6548991 (2003-04-01), Maksimovic et al.
patent: 6583675 (2003-06-01), Gomez
patent: 6614284 (2003-09-01), Beeman et al.
patent: 6657467 (2003-12-01), Seki et al.
patent: 6664775 (2003-12-01), Clark et al.
patent: 6697767 (2004-02-01), Wang et al.
patent: 6700422 (2004-03-01), Tang et al.
patent: 6708312 (2004-03-01), Chiang et al.
patent: 6768363 (2004-07-01), Yoo et al.
patent: 6868503 (2005-03-01), Maksimovic et al.
patent: 6882172 (2005-04-01), Suzuki et al.
patent: 6900478 (2005-05-01), Miyagi
patent: 6944780 (2005-09-01), Kranzen et al.
patent: 7024568 (2006-04-01), Maksimovic et al.
patent: 7030661 (2006-04-01), Doyle
patent: 7080268 (2006-07-01), Mosley
patent: 7100061 (2006-08-01), Halepete et al.
patent: 7106040 (2006-09-01), Maksimovic et al.
patent: 7112978 (2006-09-01), Koniaris et al.
patent: 7117378 (2006-10-01), Maksimovic et al.
patent: 7120804 (2006-10-01), Tschanz et al.
patent: 7157889 (2007-01-01), Kernahan et al.
patent: 7180322 (2007-02-01), Koniaris et al.
patent: 7228242 (2007-06-01), Read et al.
patent: 7289921 (2007-10-01), Salmi et al.
patent: 7301378 (2007-11-01), Cao
patent: 7479768 (2009-01-01), Salmi
patent: 7581120 (2009-08-01), Hartman et al.
patent: 2002/0114244 (2002-08-01), Kelly et al.
patent: 2003/0071657 (2003-04-01), Soerensen et al.
patent: 2003/0076183 (2003-04-01), Tam et al.
patent: 2003/0093160 (2003-05-01), Maksimovic et al.
patent: 2007/0139097 (2007-06-01), Yang
patent: 1238843 (1999-12-01), None
patent: 100511098 (2009-07-01), None
patent: WO 01/35200 (2001-05-01), None
patent: WO 03/062972 (2003-07-01), None
Yee William Li, et al., “Asynchronous Datapath with Software-Controlled On-Chip Adaptive Voltage Scaling for Multirate Signal Processing Applications”, Proceedings of the Ninth International Symposium on Asynchronous Circuits and Systems (ASYNC'03), 2003 IEEE, 10 pages.
Woonseok Kim, et al., “Preemption-Aware Dynamic Voltage Scaling in Hard Real-Time Systems”, Proceedings of the 2004 International Symposium on Low Power-Electronics and Design (ISLPED'04), p. 393-398.
Sandeep Dhar, et al., “Switching Regulator with Dynamically Adjustable Supply Voltage for Low Power VLSI”, IECON'01: The 27th Annual Conference of the IEEE Industrial Electronics Society, 2001, p. 1874-1879.
Mohamed Elgebaly, et al., “Variation-Aware Adaptive Voltage Scaling System,” IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 15, No. 5, May 2007, p. 560-571.
Sandeep Dhar, et al., “Closed-loop Adaptive Voltage Scaling Controller for Standard-Cell ASICs,” ISLPED'02, Aug. 12-14, 2002, 5 pages.
Hiroshi Okano, et al., “Supply Voltage Adjustment Technique for Low Power Consumption and its Application to SOCs with Multiple Threshold Voltage CMOS”, 2006 Symposium on VLSI Circuits Digest of Technical Papers, 2 pages.
Jianfeng Huang, et al., “Power optimization in data-path scheduling and binding with multiple supply voltages and threshold voltages by simulated annealing”, 2005 IEEE, p. 1370-1374.
Sandeep Dhar, et al., “Closed-Loop Adaptive Supply Voltage Scaling Controller for Low-Power Embedded Processors”, 2005 IEEE Region 5 and IEEE Denver Section Technical, Professional and Student Development Workshop, p. 6-11.
W. Hung, et al., “Total Power Optimization through Simultaneously Multiple-VDD Multiple-VTH Assignment and Device Sizing with Stack Forcing”, ISLPED '04, Aug. 9-11, 2004, p. 144-149.
Anirban Basu, et al., “Simultaneous Optimization of Supply and Threshold Voltages for Low-Power and High-Performance Circuits in the Leakage Dominant Era”, DAC 2004, Jun. 7-11, 2004. p. 884-887.
S. Thompson, et al., “Dual Threshold Voltages and Substrate Bias: Keys to High Performance, Low Power, 0.1 μm Logic Designs”, 1997 Symposium on VLSI Technology Digest of Technical Papers, p. 69-70.
A. Bassi, et al., “Measuring the effects of process variations on circuit performance by means of digitally-controllable ring oscillators”, 2003 IEEE, p. 214-217.
Pasi Salmi, et al., “System and Method for Rapidly Increasing a Rising Slew Rate of an Adjustable Supply Voltage in Adaptive Voltage Scaling”, U.S. Appl. No. 11/138,037, filed May 26, 2005.
Michael J. Dong, et al., “Low Power Signal Processing Architectures for Network Microsensors”, 1997, ACM Publication, p. 173-177.
Roy H. Liu, “Multi-voltage Adaptive Voltage Scaling SoC Reference Design”, National Semiconductor Corporation, Nov. 15, 2006, p. 1-8.
Juha Pennanen, et al., “System and Method for Providing Hardware Performance Monitors for Adaptive Voltage Scaling With a Plurality of VT Logic Libraries”, U.S. Appl. No. 11/712,709, filed Mar. 1, 2007.
Pennanen Juha
Salmi Pasi
Brown Michael J
Lee Thomas
National Semiconductor Corporation
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