Method and system for estimating range with ultrasound
OwnerJoe Youssefinventor
Life of this patent
Estimating the term…
Abstract
Methods and systems are disclosed for employing an ultrasonic sensor to estimate a range for a moving object. At least one processor separates returned signals received by an ultrasonic transducer into a stationary object signal and a moving object signal. A gain is determined based at least in part on the stationary object signal. The stationary object signal is combined with the moving object signal using the gain and then filtered. The range for the moving object is estimated using the filtered combined stationary and moving object signal.
Claims23
A device comprising:
- an ultrasonic transducer configured to emit an ultrasonic pulse and receive returned signals corresponding to the emitted ultrasonic pulse;
- and
- at least one processor coupled with the ultrasonic transducer and configured to:
- separate the returned signals into a stationary object signal and a moving object signal;
- determine a gain based at least in part on the stationary object signal;
- combine the stationary object signal with the moving object signal using the gain;
- filter the combined stationary object signal and moving object signal;
- and
- estimate a range for a moving object based at least in part on the filtered combined stationary and moving object signal.
A sensor processing unit comprising:
- an ultrasonic transducer configured to emit an ultrasonic pulse and receive returned signals corresponding to the emitted ultrasonic pulse;
- and
- at least one sensor processor coupled with the ultrasonic transducer and configured to:
- separate the returned signals into a stationary object signal and a moving object signal;
- determine a gain based at least in part on the stationary object signal;
- combine the stationary object signal with the moving object signal using the gain;
- filter the combined stationary object signal and moving object signal;
- and
- estimate a range for a moving object based at least in part on the filtered combined stationary and moving object signal.
A method for employing an ultrasonic sensor to estimate a range for a moving object, comprising:
- separating, employing at least one a processor coupled with an ultrasonic transducer, returned signals received by the ultrasonic transducer and corresponding to a pulse emitted by the ultrasonic transducer into a stationary object signal and a moving object signal;
- determining a gain based at least in part on the stationary object signal;
- combining the stationary object signal with the moving object signal using the gain;
- filtering the combined stationary object signal and moving object signal;
- and
- estimating the range for the moving object based at least in part on the filtered combined stationary and moving object signal.
Dependencies are inferred from the claim text.