Patents Assigned to Aura Intelligent Systems, Inc.
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Patent number: 11936477Abstract: An advanced radio apparatus includes a set of antennas; analog circuit; digital circuit; medium access control (MAC) controller; and processor operably connected to the set of antennas, the analog circuit, the digital circuit, and the MAC controller. The processor is configured to decompose wideband waveform signals into a time-frequency waveform based on a sequence of sub-band signals; generate a time-frequency radar waveform based on the decomposed wideband waveform signals; map, based on the time-frequency radar waveform, a constant amplitude zero auto-correlation (CAZAC) sequence into orthogonal frequency division multiplexing (OFDM) sub-carriers to generate a first radar signal. A transceiver is connected to the processor and configured to transmit, to a target object via a transmit antenna of the set of antennas, the first radar signal and receive, via a receive antenna of the set of antennas, a second signal that is reflected or backscattered from the target object.Type: GrantFiled: January 14, 2020Date of Patent: March 19, 2024Assignee: Aura Intelligent Systems, Inc.Inventor: Jungah Lee
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Patent number: 11796669Abstract: An advanced system and method is provided. The advanced system and method comprises: a set of antennas including a set of transmit antennas and a set of receive antennas; a digital beamformer; and a processor operably connected to the set of antennas and the digital beamformer, the processor configured to; identify a set of orthogonal multiple-input-multiple-output (MIMO) signals, generate a first set of beams via the digital beamformer, and map the set of orthogonal MIMO signals into each of the generated set of beams. The advanced system and method further comprises a transceiver operably connected to the processor, the transceiver configured to: transmit, to a target scene via the set of transmit antenna of the set of antennas, a first signal based on the first set of beams; and receive, via the set of receive antennas of the set of antennas, a second signal based on a second set of beams that is reflected or backscattered from the target scene.Type: GrantFiled: April 24, 2020Date of Patent: October 24, 2023Assignee: Aura Intelligent Systems, Inc.Inventor: Jungah Lee
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Patent number: 11252396Abstract: An advanced communication system is provided. The advanced communication system comprises generating a first signal with a polyphase coding based on a DFT spread OFDM with at least one CAZAC sequence in accordance with a configuration condition, applying a digital transmit beamforming to the generated first signal, converting the first signal to analog from digital, modulating the converted first signal with an energy source, emitting, using at least one energy emit element, the modulated first signal, detecting a second signal comprising at least a portion of the emitted first signal that is reflected from at least one object in a scene in a field-of-view, demodulating the detected second signal, converting the second signal to digital from analog, converting the converted second signal to a computational image, and generating a 3D image by applying coherent detection to the computational image. The first signal comprises a polyphase sequence.Type: GrantFiled: February 10, 2020Date of Patent: February 15, 2022Assignee: Aura Intelligent Systems, Inc.Inventor: Jungah Lee
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Patent number: 10560685Abstract: An advanced communication system is provided. The advanced communication system comprises generating a first signal with a polyphase coding based on a DFT spread OFDM with at least one CAZAC sequence in accordance with a configuration condition, applying a digital transmit beamforming to the generated first signal, converting the first signal to analog from digital, modulating the converted first signal with an energy source, emitting, using at least one energy emit element, the modulated first signal, detecting a second signal comprising at least a portion of the emitted first signal that is reflected from at least one object in a scene in a field-of-view, demodulating the detected second signal, converting the second signal to digital from analog, converting the converted second signal to a computational image, and generating a 3D image by applying coherent detection to the computational image. The first signal comprises a polyphase sequence.Type: GrantFiled: June 11, 2019Date of Patent: February 11, 2020Assignee: Aura Intelligent Systems, Inc.Inventor: Jungah Lee