Systems and methods for thermal management

Details Systems and methods for thermal management Systems and methods for thermal management

2008-03-25

2008-03-25

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Mechanical control system

C438S017000, C438S054000, C713S322000, C713S501000

Reexamination Certificate

active

07349762

ABSTRACT:
Systems and methods for sensing temperatures of multiple functional blocks within a digital device and controlling the operation of these functional blocks in a manner that selectively reduces temperatures associated with some of the functional blocks, but not others. One embodiment comprises an integrated circuit having multiple functional blocks (such as processor cores) and a set of thermal sensors coupled to sense the temperatures of the functional blocks. The integrated circuit includes control circuitry configured to receive signals from the thermal sensors, detect thermal events in the functional blocks and to individually adjust operation of the functional blocks to reduce the temperatures causing the thermal events. In one embodiment, the control circuitry includes a detection/control circuit coupled to each of the functional blocks and a thermal management unit configured to evaluate detected thermal events and to determine actions to be taken in response to the thermal events.

REFERENCES:
patent: 5502838 (1996-03-01), Kikinis
patent: 6590405 (2003-07-01), Okayasu
patent: 2005/0162962 (2005-07-01), Shirota et al.
patent: 2006/0012930 (2006-01-01), Oh et al.
patent: 2006/0023546 (2006-02-01), Park

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