Patent ID: 7472301
Filing Date: 2008-12-30
Classification: G06F,Y02D

Abstract:
1. Circuitry for conserving power in a closed system include an external device separated by a boundary from and in communication with an internal device; the internal device having multiple electronic components, comprising: a power source; a first electronic component operating at a first frequency and continuously powered on by the power source; and a second electronic component operating at a second frequency different than that of the first frequency of the first electric component, the second electronic component being maintained in a powered off state in which no energy is consumed by the second electronic component until energized in response to a power enabling signal generated by the first electronic component based on demand of the particular function to be performed by the second electronic component; the power source, the first electronic component and the second electronic component being disposed within the internal device; wherein the power enabling signal is generated by the first electronic component in response to (i) expiration of a predetermined time period for initiating automatic self-testing sequencing of the internal device; and (ii) receiving at the internal device an RF communication signal transmitted from the external device.