Electrical computers and digital processing systems: support – Computer power control – Having power source monitoring
Reexamination Certificate
2011-01-18
2011-01-18
Cao, Chun (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Having power source monitoring
C713S300000
Reexamination Certificate
active
07873854
ABSTRACT:
The single chip microcontroller unit includes a processing unit having normal power mode of operation and a low power mode of operation. Analog circuitry and digital circuitry are connected to the processing unit. A power management unit controls power operations of the processing unit, the analog circuitry and the digital circuitry. Power monitoring circuitry provides power control signals to the power management unit. The power monitoring circuitry further includes a system voltage monitoring circuit for generating a system voltage control signal responsive to a system voltage level with respect to a predetermined level. The power monitoring circuitry also includes a supply monitoring circuit for determining if a chip supply voltage level exceeds a threshold level.
REFERENCES:
patent: 4586179 (1986-04-01), Sirazi et al.
patent: 5455927 (1995-10-01), Huang
patent: 6035358 (2000-03-01), Tanikawa
patent: 6268764 (2001-07-01), Eagar et al.
patent: 6429705 (2002-08-01), Bando et al.
patent: 6472912 (2002-10-01), Chiu et al.
patent: 7411380 (2008-08-01), Chang et al.
patent: 2003/0227306 (2003-12-01), Di Iorio
patent: 2007/0055900 (2007-03-01), Choi
patent: 2009/0085619 (2009-04-01), Westwick et al.
Guo Xiaoling
Liu Jia-Hau
Wei Dazhi
Westwick Alan L.
Cao Chun
Howison & Arnott, LLP
Silicon Laboratories Inc.
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