Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2011-01-11
2011-01-11
Lee, Thomas (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S300000, C713S310000, C713S320000, C713S330000
Reexamination Certificate
active
07870407
ABSTRACT:
A processor can operate in different power modes. In an active power mode, the processor executes software. In response to receiving a halt indication from the software, hardware at the processor evaluates bus transactions for the processor. If the bus transactions meet a heuristic, hardware places a processor core in a lower power mode, such as a retention mode. Because the bus transactions are evaluated by hardware, rather than by software, and the software is not required to perform handshakes and other protocols to place the processor in the lower power mode, the processor is able to place the processor core into the lower power mode more quickly, thereby conserving power.
REFERENCES:
patent: 5396635 (1995-03-01), Fung
patent: 5884088 (1999-03-01), Kardach et al.
patent: 6000035 (1999-12-01), Matsushima et al.
patent: 6018803 (2000-01-01), Kardach
patent: 6161187 (2000-12-01), Mason et al.
patent: 6240521 (2001-05-01), Barber et al.
patent: 6754837 (2004-06-01), Helms
patent: 6816977 (2004-11-01), Brakmo et al.
patent: 7036031 (2006-04-01), Takeuchi
patent: 7133944 (2006-11-01), Song et al.
patent: 7337335 (2008-02-01), Jorgenson et al.
patent: 7493440 (2009-02-01), Song et al.
patent: 7689849 (2010-03-01), Sokorac
patent: 2004/0128416 (2004-07-01), Kurts et al.
patent: 2004/0255176 (2004-12-01), George et al.
patent: 2005/0138442 (2005-06-01), Keller et al.
patent: 2006/0136763 (2006-06-01), Jorgenson et al.
patent: 2007/0016812 (2007-01-01), Song et al.
patent: 2008/0263377 (2008-10-01), Jorgenson et al.
International Search Report for PCT/US2008/006294 dated Sep. 23, 2009, 16 pages.
Branover Alex
Helms Frank P.
Lewchuk Kurt
Mackey Paul
Owen Jonathan M.
Advanced Micro Devices , Inc.
Choudhury Zahid
Lee Thomas
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