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US 11,994,584 B2Granted
Phase-based ultrasonic ranging
AssigneeTexas Instruments Incorporated
InventorCharles Kasimer Sestok, IV
Life of this patent
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Abstract
One example includes an ultrasonic ranging system. The system includes an ultrasonic transducer configured to transmit an ultrasonic signal and to receive reflected ultrasonic signal paths having been reflected from a plurality of target objects during a ranging operation. The system also includes a ranging processor configured to detect a location associated with the plurality of target objects based on monitoring phase information associated with the reflected ultrasonic signal paths.
Claims18
A system comprising:
- an ultrasonic transducer configured to:
- transmit an ultrasonic signal;
- and
- receive a reflected ultrasonic signal;
- and
- a processor configured to:
- generate samples of the reflected ultrasonic signal at different times;
- determine phase angles of the samples of the reflected ultrasonic signal;
- and
- determine a location of an object based on the phase angles.
7 more elements
A method comprising:
- transmitting, by an ultrasonic transducer, an ultrasonic signal;
- receiving, by the ultrasonic transducer, a reflected ultrasonic signal;
- generating, by a processor, samples of the reflected ultrasonic signal at different times;
- determining, by the processor, phase angles of the samples of the reflected ultrasonic signal;
- determining, by the processor, a location of an object based on the phase angles.
2 more elements
Dependencies are inferred from the claim text.