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公开(公告)号：US20220398295A1
公开(公告)日：2022-12-15
申请号：US17582359
申请日：2022-01-24
Applicant: UHNDER, INC.
Inventor： Paul W. Dent , Frederick Rush , Monier Maher
Abstract: An integrated circuit chip implementing multiplication of an M×N element matrix with an N-element vector to obtain an M-element product by combining the vector with rows of bits of the same significance selected from the matrix one bit-row at a time to form partial products, exploiting the fact that the same potential combinations are needed for all bit-rows and all matrix rows to precompute all of the combinations once and for all, and combining selected partial products for different bit place-significance with a shift-and-add operation only once for each of the M product elements, thereby effectively using only M multiply-equivalent structures. An N-point Complex Fourier Transform can therefore be claimed which only needs 2N real multiplies and the product of an N×N matrix with another N×N matrix requires only N2 multiplies.
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公开(公告)号：US20220326347A1
公开(公告)日：2022-10-13
申请号：US17582437
申请日：2022-01-24
Applicant: UHNDER, INC.
Inventor： Suleyman Gokhun Tanyer , Paul Dent , Murtaza Ali , Curtis Davis
Abstract: An exemplary radar sensing system utilizing a sparse array antenna structure provides an enhanced angular resolution to detect multiple targets with improved accuracy beyond the abilities of conventional radar. The exemplary radar system uses sparsely located antenna array elements allowing improved FOV, angular resolution, beam width, and side lobes using fewer physical antenna elements. Sparse antenna arrays allow the use of physically larger elements, larger separation between transmitter and receiver elements to reduce mutual coupling, and fewer elements to reduce necessary computations.
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公开(公告)号：US11340331B2
公开(公告)日：2022-05-24
申请号：US15978457
申请日：2018-05-14
Applicant: UHNDER, INC.
Inventor： Monier Maher , Curtis Davis , Frederick Rush , Aria Eshraghi
IPC: G01S7/35 , G01S13/64 , G01S7/285 , G01S13/931 , G01S13/06 , G01S7/03 , G01S13/87 , G01S13/42 , G01S13/58 , G11C11/409 , G01S7/40 , G01S13/32 , G01S13/34 , G06F7/72
Abstract: A radar system includes transmitters and receivers configured for installation and use in a vehicle. The transmitters transmit radio signals. The receivers receive radio signals that include the transmitted radio signals reflected from objects in an environment. Each receiver has a controller, a buffer, and a post-buffer processor. The receiver processes the received radio signals and stored data samples in the buffer. The buffer operates in a plurality of modes defined by the controller. Two or more modes of operation of the plurality of modes are performed with a same set of data samples stored in the buffer. The post-buffer processor receives data samples from the buffer and performs at least one of correlation processing to determine object ranges, Doppler processing to determine object velocity, and, in combination with other receivers of the plurality of receivers, further processing to determine angular locations of the objects.
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公开(公告)号：US20210364634A1
公开(公告)日：2021-11-25
申请号：US17395823
申请日：2021-08-06
Applicant: UHNDER, INC.
Inventor： Curtis Davis , Monier Maher , Jean P. Bordes , Manju Hegde , Otto A. Schmid , Raghunath K. Rao , Marius Goldenberg , Aria Eshraghi , Vito Giannini , David S. Trager , Nikhilesh Bhagat , Srikanth Gollapudi , Sundar Govindarajan , Steve Borho , Jonathan Preussner , Paul W. Dent , Paul Bassett , Stephen W. Alland , Fred Harris , Wayne E. Stark , Murtaza Ali
IPC: G01S13/931 , G01S7/02 , G01S13/87 , H04L27/227
Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system includes transmitters configured to transmit radio signals, receivers configured to receive radar signals, and a control unit. The received radio signals include transmitted radio signals transmitted by the transmitters and reflected from objects in an environment. The control unit adaptively controls the transmitters and the receivers based on a selected operating mode for the radar system. The selected operating mode meets a desired operational objective defined by current environmental conditions. The control unit is configured to control the receivers to produce and process data according to the selected operating mode.
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公开(公告)号：US11086010B2
公开(公告)日：2021-08-10
申请号：US16207910
申请日：2018-12-03
Applicant: UHNDER, INC.
Inventor： Curtis Davis , Monier Maher , Jean P. Bordes , Manju Hegde , Otto A. Schmid , Raghunath K. Rao , Marius Goldenberg , Aria Eshraghi , Vito Giannini , David S. Trager , Nikhilesh Bhagat , Srikanth Gollapudi , Sundar Govindarajan , Steve Borho , Jonathan Preussner , Paul W. Dent , Paul Bassett , Stephen W. Alland , Fred Harris , Wayne E. Stark , Murtaza Ali
IPC: G01S13/931 , G01S7/02 , G01S13/87 , H04L27/227 , G01S7/35 , H04B17/309 , H04B17/345
Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements. The system also adapts to changing environmental conditions including interfering radio signals.
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Patent Agency Ranking
公开(公告)号：US20200292665A1
公开(公告)日：2020-09-17
申请号：US16815320
申请日：2020-03-11
Applicant: UHNDER, INC.
Inventor： Richard Behrens , Frederick Rush , Monier Maher , Murtaza Ali
Abstract: A radar sensing system includes a transmitter and a receiver. The transmitter is configured to transmit a radio signal. The receiver is configured to receive radio signals that include the transmitted radio signal reflected from objects in the environment. The transmitter and receiver are configured to distribute the signal power over frequency so that it is separated from noise and impairments at DC and low frequencies as may be caused by some radar system components which introduce DC offsets and/or low frequency (e.g. flicker) noise.
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7.发明申请公开(公告)号：US20190154796A1
公开(公告)日：2019-05-23
申请号：US16259379
申请日：2019-01-28
Applicant: UHNDER, INC.
Inventor： Aria Eshraghi , Curtis Davis , Murtaza Ali , Paul Dent
Abstract: A radar system for mobile applications includes transmitters and receivers. The transmitters are configured for installation and use in a mobile application. Each of the transmitters is configured to generate a radio signal. The receivers are configured for installation and use in the mobile application. Each of the receivers is configured to receive radio signals that include transmitted radio signals transmitted by the transmitters and reflected from objects in the environment. A first transmitter of the transmitters is configured to frequency modulate the transmitted radio signal using a shaped frequency pulse which is defined by a sequence of chips. The sequence of chips is selected to realize a selected frequency pulse shape.
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8.发明授权公开(公告)号：US10191142B2
公开(公告)日：2019-01-29
申请号：US15953826
申请日：2018-04-16
Applicant: UHNDER, INC.
Inventor： Aria Eshraghi , Curtis Davis , Murtaza Ali , Paul Dent
Abstract: A method for determining a frequency modulation includes generating a symbol stream that is filtered, with multiple samples per period. Sample values represent samples of the filtered symbols at instants separated by intervals of a fraction of a time period between successive symbols. Samples of I and Q waveforms are calculated from frequency modulating a signal with the sequence of symbols. For each possible set of symbol values on which a waveform depends, an average waveform is produced over all symbol values outside the group; and on which the waveform is not to depend, all waveforms are superimposed within +/−half a period of the center symbol of each group having the same set of values and averaging the superimposed I, Q samples to produce for each group an averaged set of samples and an average waveform. Final I, Q values are stored for subsequent frequency modulation.
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公开(公告)号：US20180259620A1
公开(公告)日：2018-09-13
申请号：US15978457
申请日：2018-05-14
Applicant: UHNDER, INC.
Inventor： Monier Maher , Curtis Davis , Frederick Rush , Aria Eshraghi
CPC classification number: G01S7/352 , G01S7/032 , G01S7/285 , G01S7/354 , G01S7/4017 , G01S7/4021 , G01S13/06 , G01S13/325 , G01S13/34 , G01S13/42 , G01S13/584 , G01S13/64 , G01S13/87 , G01S13/878 , G01S13/931 , G01S2013/9375 , G01S2013/9378 , G01S2013/9385 , G06F7/724 , G11C11/409
Abstract: A radar system includes transmitters and receivers configured for installation and use in a vehicle. The transmitters transmit radio signals. The receivers receive radio signals that include the transmitted radio signals reflected from objects in an environment. Each receiver has a controller, a buffer, and a post-buffer processor. The receiver processes the received radio signals and stored data samples in the buffer. The buffer operates in a plurality of modes defined by the controller. Two or more modes of operation of the plurality of modes are performed with a same set of data samples stored in the buffer. The post-buffer processor receives data samples from the buffer and performs at least one of correlation processing to determine object ranges, Doppler processing to determine object velocity, and, in combination with other receivers of the plurality of receivers, further processing to determine angular locations of the objects.
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10.发明申请公开(公告)号：US20180259619A1
公开(公告)日：2018-09-13
申请号：US15953826
申请日：2018-04-16
Applicant: UHNDER, INC.
Inventor： Aria Eshraghi , Curtis Davis , Murtaza Ali , Paul Dent
CPC classification number: G01S7/352 , G01S7/282 , G01S13/325 , G01S13/87 , G01S13/931 , G01S2007/358 , G01S2013/936 , G01S2013/9375 , G01S2013/9378
Abstract: A method for determining a frequency modulation includes generating a symbol stream that is filtered, with multiple samples per period. Sample values represent samples of the filtered symbols at instants separated by intervals of a fraction of a time period between successive symbols. Samples of I and Q waveforms are calculated from frequency modulating a signal with the sequence of symbols. For each possible set of symbol values on which a waveform depends, an average waveform is produced over all symbol values outside the group; and on which the waveform is not to depend, all waveforms are superimposed within +/−half a period of the center symbol of each group having the same set of values and averaging the superimposed I, Q samples to produce for each group an averaged set of samples and an average waveform. Final I, Q values are stored for subsequent frequency modulation.
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