Patent ID: 8363344
Filing Date: 2013-01-29
Classification: G06F,G11B

Abstract:
1. An information handling system comprising: a free fall sensor configured to detect movement in the information handling system; an amplifier and sampling circuit in communication with the free fall sensor, the amplifier and sampling circuit configured to sample data signals from the free fall sensor based on an initial sampling signal and based on a variable sampling signal; a sampling data analyzer in communication with the amplifier and sampling circuit, the sampling data analyzer configured to compare a magnitude of a sampled data point to a predetermined magnitude, to output an alert signal and to output a reset signal when the magnitude of the sampled data point is above the predetermined magnitude, and to clear a counter buffer when the reset signal is received; a monitor unit in communication with the sampling data analyzer, the monitor unit configured to set the counter buffer to a high voltage level when the alert signal is received, and to output a vary sampling signal when the alert signal is received; a counter timer in communication with the monitor unit, the counter timer configured to count down when the alert signal is received; a sampling clock duration controller in communication with the monitor unit, the sampling clock duration controller configured to vary a duration and a frequency of a sampling signal control in response to the vary sampling signal; and a sampling clock generator in communication with the sampling clock duration controller and with the amplifier and sampling circuit, the sampling clock generator configured to send the initial sampling signal to the amplifier and sampling circuit, and further configured to send the variable sampling signal to the amplifier and sampling circuit in response to the variation of the duration and the frequency of the sampling signal control, wherein the variable sampling signal has different frequencies and different durations that vary between different pairs of pulses of the variable sampling signal.