US Patent 7868479 Power gating for multimedia processing power management

Circuitry for implementation of power gating within a multimedia processing environment is described. The disclosed circuitry supports effective power management for a multimedia display processor, which may include various components that operate separately from one another. In this manner, the disclosed circuitry can support power conservation and enhanced performance within a multimedia processing environment. In some aspects, headswitch or footswitch circuitry may be implemented to selectively connect and disconnect different logic components of a multimedia display processor to a power rail depending on the operating mode of the respective logic component, e.g., depending on whether the logic component is in an active or inactive mode.