DISTANCE SENSOR AND METHOD FOR DETERMINING A DISTANCE
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Accused Products
Abstract
A distance sensor has an ultrasound transceiver for transmitting ultrasound pulses and for receiving reflected ultrasound pulses from an object. A discriminator unit is configured for determining a center of distribution of the received reflected ultrasound pulse on the basis of the received reflected ultrasound pulse exceeding a first threshold value and subsequently dropping below a second threshold value. A propagation time analyzer device, is designed for determining, based on the determined center of distribution, the distance to the object.
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Citations
20 Claims
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1-10. -10. (canceled)
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11. A distance sensor, comprising:
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an ultrasound transceiver for transmitting ultrasound pulses and for receiving reflected ultrasound pulses from an object; a discriminator unit for determining a center of distribution of the received reflected ultrasound pulses based on the received reflected ultrasound pulse exceeding a first threshold value and subsequently dropping below a second threshold value; and a propagation time analyzer device for determining, based on the determined center of distribution, the distance to the object. - View Dependent Claims (12, 13)
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14. A method for determining a distance to an object, the method comprising:
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establishing an end of a propagation time measurement by a center of distribution of a reflected ultrasound pulse; and determining the distance to the object based on the propagation time measurement of the reflected ultrasound pulse. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification