Falling state determination for data storage device
AssigneeWestern Digital Technologies, Inc.
InventorsMICHAEL T. NICHOLLS, HIEN T. CHU
Life of this patent
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Abstract
Determination of when an electronic device such as a data storage device (DSD) is falling. An input is received indicating an acceleration of the electronic device during a time period. A classifier function is calculated using the input and it is determined whether the electronic device is falling based on a calculated value of the classifier function. During a calibration process, acceleration values are recorded representing a plurality of actual falls and a plurality of false falls of the electronic device. Weight values are set for a weighted classifier function using the recorded acceleration values and the weighted classifier function is stored in a memory of the electronic device.
Claims31
A data storage device (DSD) comprising:
- a memory for storing data;
- and
- a controller configured to:
- receive an input indicating an acceleration of the DSD during a time period;
- calculate a classifier function using the input;
- and
- determine whether the DSD is falling based on a calculated value of the classifier function.
A method for determining when an electronic device is falling, the method comprising:
- receiving an input indicating an acceleration of the electronic device during a time period;
- calculating a classifier function using the input;
- and
- determining whether the electronic device is falling based on a calculated value of the classifier function.
A method for calibrating an electronic device for determining when the electronic device is falling, the method comprising:
- recording acceleration values representing a plurality of actual falls and a plurality of false falls of the electronic device;
- setting weight values for a weighted classifier function using the recorded acceleration values;
- and
- storing the weighted classifier function in a memory of the electronic device.
Dependencies are inferred from the claim text.