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US 7,930,126 B2Granted
Sampling method for an asynchronous sensor and associated asynchronous sensor
AssigneeRobert Bosch GmbH
InventorsVolker Frese, Michael Schruellkamp, Thomas Mayer
Life of this patent
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Abstract
A sampling method is for an asynchronous sensor, in which sensor data are read out from a sensor element at a sampling rate and written into an output register and subsequently read out from the output register at an output rate. The output rate of the output register is increased by a programmable interpolation of at least two sampling values.
Claims19
A computer-implemented sampling method for an asynchronous sensor, comprising:
- reading sampling sensor values from a sensor element at a sampling rate;
- writing, via circuitry, the sensor values into an output register;
- subsequently reading, by a processor, the sensor values from the output register at an output rate;
- and
- programmably interpolating, by the processor, at least two of the sampling values to increase the output rate of the output register;
- wherein the programmable interpolation includes a linear interpolation, in which a difference of two sampling values is multiplied by a ratio of the output rate to the sampling rate and a result of the multiplication is added to an old sampling value and stored in the output register.
3 more elements
An asynchronous sensor arrangement, comprising:
- a sensor element;
- a control unit;
- and
- an output register;
- wherein the output register is configured to read out sampling sensor values at a sampling rate from the sensor element and to output the sensor values at an output rate to the control unit, the asynchronous sensor arrangement being configured to increase the output rate of the output register by a programmable interpolation of at least two of the sampling values;
- wherein the programmable interpolation includes a linear interpolation, in which a difference of two sampling values is multiplied by a ratio of the output rate to the sampling rate and a result of the multiplication is added to an old sampling value and stored in the output register.
3 more elements
A sensor arrangement, comprising:
- a sensor element;
- an output register, sampling sensor values being read from the sensor element at a sampling rate and being written into the output register;
- and
- a processor configured to:
- read the sensor values from the output register at an output rate;
- and
- programmably interpolate at least two of the sampling values to increase the output rate;
- wherein the programmable interpolation includes a linear interpolation, in which a difference of two sampling values is multiplied by a ratio of the output rate to the sampling rate and a result of the multiplication is added to an old sampling value and stored in the output register.
5 more elements
Dependencies are inferred from the claim text.