Patent ID: 7149647
Filing Date: 2006-12-12
Classification: G06F,Y02D

Abstract:
1. A position pointing device comprising: a resonant circuit; a resonance-characteristic control circuit for controlling characteristics of the resonant circuit in accordance with pointing-device information at timing synchronized with at least part of an electromagnetic wave that is intermittently transmitted from a tablet and for returning the pointing-device information to the tablet; a clock oscillator circuit for generating a clock signal for driving the resonance-characteristic control circuit; clock starting means for stopping an operation of the clock oscillator circuit when a start condition is set thereby placing the reasonance-characteristic control circuit in a sleep state wherein the clock signal does not vary, and the clock starting means for starting the operation of the clock oscillator circuit when the resonant circuit generates a signal specified by the start condition, wherein the start condition specifies that, in response to what type of signal generated at the resonant circuit, the clock oscillator circuit is to be started; and start-condition setting means for setting the start condition in the clock starting means at timing in accordance with an operation of the resonance-characteristic control circuit, the start condition corresponding to content of controlling performed by the resonance-characteristic control circuit.