System for dynamically managing power consumption in a...

Details System for dynamically managing power consumption in a... System for dynamically managing power consumption in a...

2010-06-23

2011-10-04

Lappas, Jason (Department: 2827)

Static information storage and retrieval

Associative memories

Priority encoders

C365S049170, C365S049100

Reexamination Certificate

active

08031503

ABSTRACT:
The power consumption of a search engine such as a CAM device is dynamically adjusted to prevent performance degradation and/or damage resulting from overheating. For some embodiments, the CAM device is continuously sampled to generate sampling signals indicating the number of active states and number of compare operations performed during each sampling period. The sampling signals are accumulated to generate an estimated device power profile, which is compared with reference values corresponding to predetermined power levels to generate a dynamic power control signal indicating predicted increases in the device's operating temperature resulting from its power consumption. The dynamic power control signal is then used to selectively reduce the input data rate of the CAM device, thereby reducing power consumption and allowing the device to cool.

REFERENCES:
patent: 6324087 (2001-11-01), Pereira
patent: 6763425 (2004-07-01), Pereira
patent: 7346000 (2008-03-01), Srinivasan et al.
patent: 7382637 (2008-06-01), Rathnavelu et al.

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