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US 7,352,293 B1Granted
Multi-mode encoder output generator
AssigneeHewlett-Packard Development Company, L.P.
InventorDavid A. Rehmann
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Abstract
Various apparatus and methods of a multi-mode encoder output generator are disclosed.
Claims20
An apparatus comprising:
- an output generator configured to output signals based at least in part upon sensed edge signals received from a quadrature encoder, the output generator being configured to operate in a first output mode in which output signals are based upon interpolation of sensed edge signals from a first channel of the quadrature encoder and a second output mode in which output signals are based upon sensed edge signals from the first channel and a second channel of the quadrature encoder.
An apparatus comprising:
- means for interpolating sensed edge signals received from an encoder to form interpolated signals;
- and
- output means for switching between a first mode in which sensed edge signals from the encoder are output and a second mode in which the interpolated signals are output.
A method comprising:
- operating in a first output mode in which output signals are based upon interpolation of sensed edge signals from a first channel of a quadrature encoder;
- and
- operating in a second output mode in which output signals are based upon sensed edge signals from the first channel and a second channel of the quadrature encoder.
Dependencies are inferred from the claim text.