Vehicle acoustic transducer operation
First Claim
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1. A system, comprising a computer and a memory, the memory storing instructions executable by the computer to:
- identify a target;
input a perceived frequency by the target of an acoustic message to a phase-locked loop to identify a frequency adjustment of the acoustic message to adjust an emitted frequency of the acoustic message from a vehicle to an intended frequency to be received by the target, the perceived frequency based on a predicted target trajectory and a predicted vehicle trajectory, wherein the phase-locked loop minimizes a phase difference between the acoustic message at the perceived frequency and the acoustic message at the intended frequency; and
emit the acoustic message at the emitted frequency adjusted by the frequency adjustment.
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Abstract
A system includes a computer and a memory, the memory storing instructions executable by the computer to identify a target and to adjust a frequency of an acoustic message from a vehicle based on a predicted target trajectory and a predicted vehicle trajectory.
15 Citations
20 Claims
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1. A system, comprising a computer and a memory, the memory storing instructions executable by the computer to:
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identify a target; input a perceived frequency by the target of an acoustic message to a phase-locked loop to identify a frequency adjustment of the acoustic message to adjust an emitted frequency of the acoustic message from a vehicle to an intended frequency to be received by the target, the perceived frequency based on a predicted target trajectory and a predicted vehicle trajectory, wherein the phase-locked loop minimizes a phase difference between the acoustic message at the perceived frequency and the acoustic message at the intended frequency; and emit the acoustic message at the emitted frequency adjusted by the frequency adjustment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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identifying a target; inputting a perceived frequency by the target of an acoustic message to a phase-locked loop to identify a frequency adjustment of the acoustic message to adjust an emitted frequency of the acoustic message from a vehicle to an intended frequency to be received by the target, the perceived frequency based on a predicted target trajectory and a predicted vehicle trajectory, wherein the phase-locked loop minimizes a phase difference between the acoustic message at the perceived frequency and the acoustic message at the intended frequency; and emitting the acoustic message at the emitted frequency adjusted by the frequency adjustment. - View Dependent Claims (16, 17)
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18. A system, comprising:
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a transducer; means for identifying a target; means for inputting a perceived frequency by the target of an acoustic message to a phase-locked loop to identify a frequency adjustment of the acoustic message to adjust an emitted frequency of the acoustic message from a vehicle to an intended frequency to be received by the target, the perceived frequency based on a predicted target trajectory and a predicted vehicle trajectory, wherein the phase-locked loop minimizes a phase difference between the acoustic message at the perceived frequency and the acoustic message at the intended frequency; and means for emitting the acoustic message at the emitted frequency adjusted by the frequency adjustment. - View Dependent Claims (19, 20)
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Specification