Patent ID: 11942975
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC H

Claim 11:
12. An apparatus for correcting an input signal, configured for
receiving the input signal, the received input signal comprising a series of input values,
matching a series of template values to the series of input values by warping the series of template values and the series of input values relatively to each other so as to assign one or more template values to one or more input values,
wherein the series of template values represents an approximation of a noise signal that is expected to be comprised in the input signal,
obtaining a series of corrected input values based on a mismatch between the input values and their respective assigned template values, and
providing a corrected signal based on the series of corrected input values,
wherein the apparatus further comprises:
a transceiver, configured for transmitting an ultrasonic signal during a first time span, and configured for receiving an ultrasonic signal during a second time span,
wherein the transceiver is configured for providing an input signal comprising the received ultrasonic signal in a time series; and
means for obtaining information about time of flight of the ultrasonic signal by evaluating the corrected signal,
wherein the series of input values and the series of template values cover a time span of a ringing of the transceiver after transmitting the ultrasonic signal.