Patent ID: 11892431
Assignee: THUNDERTECH INC.
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A system comprising:
an acoustic array of 1014 acoustic transceivers, comprising six array panels, each of the array panels comprising a transceiver array of 169 acoustic transceivers, each acoustic transceiver further comprising:
a transmitter element configured to generate sound;
a receiver element to capture sound;
a 24-bit digital to analog converter (DAC) to convert a digital signal to an analog signal for transmission by the transmitter element; and
a 24-bit analog to digital converter to convert an analog signal from the receiver element to a digital signal;

a driver circuit coupled with the plurality of acoustic array, the driver circuit configured to drive individually each transmitter element and each receiver element of each transceiver array;
a controller interface coupled to the driver circuit;
a controller coupled to the controller interface, the controller comprising:
a processor; and
non-transitory computer readable media comprising instructions executable by the processor to:
provide, via the controller interface, a probe signal to the driver circuit;
provide, via the controller interface, a cancellation signal to the driver input, to cancel incoming acoustic signals and correlated noise at each receiver element of the acoustic array;
provide, via the controller interface, a transmit focal point for the probe signal to be transmitted by the acoustic array;
adjust, via the driver circuit, a first phase of the probe signal at one or more transmitter elements of the acoustic array based on the focal point; and
emit, via the acoustic array, the probe signal at the focal point, wherein the probe signal is a broadband signal comprising a plurality of frequencies within a frequency band ranging from 10 Hz to 10 kHz, each of the acoustic transceivers transmitting 10,000 frequencies within the plurality of frequencies;
emit, via the acoustic array, the cancellation signal;
receive, via the controller interface, a plurality of digital signals, the plurality of signals comprising:
a first 24-bit digital signal for each of the 10,000 frequencies from the DAC of each transceiver;
a second 24-bit signal for each of the 10,000 frequencies from the ADC of each transceiver; and

produce a high-resolution, three-dimensional signal with 84 bits of dynamic resolution from the plurality of digital signals by performing the following operations:
for each transceiver, combine the first 24-bit digital signal with the second 24-bit digital signal to produce a single-frequency transceiver signal having 48 bits of dynamic range per frequency per transceiver;
for each of the 10,000 frequencies, combine the single-frequency transceiver signal of each transceiver to produce a combined single-frequency signal having 68 bits of dynamic range per frequency;
combine each of the 10,000 single frequency signals to produce a multi-frequency signal having 81 bits of dynamic range; and
combine a plurality of multi-frequency signals received over a duration of eight seconds to produce the high-resolution, three-dimensional signal.