Patents by Inventor Behrooz Rezvani
Behrooz Rezvani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240125906Abstract: Disclosed herein are optical systems (e.g., LiDAR systems) and methods with improved eye safety. In some embodiments, a system includes a first light emitter configured to illuminate a first field of view (FOV) using light emitted at a first wavelength and a second light emitter configured to illuminate a second FOV using light emitted at a second wavelength. The second FOV is wider than the first FOV, and the first FOV extends to a further distance from the system than the second FOV. The system also includes a sensor configured to detect reflections off of targets within the second FOV, and at least one processor configured to execute one or more machine executable instructions.Type: ApplicationFiled: February 22, 2022Publication date: April 18, 2024Applicant: Neural Propulsion Systems, Inc.Inventors: Daryoosh REJALY, Oguzhan TEKE, Daniel M. BROWN, Babak HASSIBI, Behrooz REZVANI
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Publication number: 20230333206Abstract: Disclosed herein are systems and methods for estimating target ranges, angles of arrival, and speed using optimization procedures. Target ranges are estimated by performing an optimization procedure to obtain a denoised signal, performing a correlation of a transmitted waveform and the denoised signal, and using a result of the correlation to determine an estimate of a distance between the sensor and at least one target. Target angles of arrival are estimated by determining ranges at which targets are located, and, for each range, constructing an array signal from samples of received echo signals, and using the array signal, performing another optimization procedure to estimate a respective angle of arrival for each target of the at least one target. Doppler shifts may also be estimated using another optimization procedure. Certain of the optimization procedures use atomic norm techniques.Type: ApplicationFiled: February 25, 2023Publication date: October 19, 2023Applicant: Neural Propulsion Systems, Inc.Inventors: Babak HASSIBI, Behrooz REZVANI
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Publication number: 20230168359Abstract: Disclosed herein are systems, devices, and methods that may be used for autonomous driving and/or in autonomous vehicles. Some embodiments use an integrated wide-aperture multi-band radar subsystem and leverage the unique propagation properties of multiple bands and/or multiple sensor technologies to significantly improve detection and understanding of the scenery and, in particular, to see around corners to identify non-line-of-sight targets. In some embodiments, at least one processor of the system is capable of jointly processing return (reflected) signals in multiple bands to provide high accuracy in a variety of conditions (e.g., weather). The disclosed radar subsystem can be used alone or in conjunction with another sensing technology, such as, for example, LiDAR and/or cameras.Type: ApplicationFiled: January 27, 2023Publication date: June 1, 2023Applicant: Neural Propulsion Systems, Inc.Inventors: Behrooz REZVANI, Babak HASSIBI, Fredrik BRÄNNSTRÖM, Oguzhan TEKE
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Patent number: 11592521Abstract: Disclosed herein are systems and methods for estimating target ranges, angles of arrival, and speed using optimization procedures. Target ranges are estimated by performing an optimization procedure to obtain a denoised signal, performing a correlation of a transmitted waveform and the denoised signal, and using a result of the correlation to determine an estimate of a distance between the sensor and at least one target. Target angles of arrival are estimated by determining ranges at which targets are located, and, for each range, constructing an array signal from samples of received echo signals, and using the array signal, performing another optimization procedure to estimate a respective angle of arrival for each target of the at least one target. Doppler shifts may also be estimated using another optimization procedure. Certain of the optimization procedures use atomic norm techniques.Type: GrantFiled: December 12, 2020Date of Patent: February 28, 2023Assignee: Neural Propulsion Systems, Inc.Inventors: Babak Hassibi, Behrooz Rezvani
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Publication number: 20210325537Abstract: Disclosed herein are multiple-input, multiple-output (MIMO) LiDAR systems in which the fields of view of multiple illuminators (e.g., lasers) overlap and/or fields of view of multiple detectors (e.g., photodiodes) overlap. Some embodiments provide for illuminators that transmit substantially white pulse sequences that are substantially uncorrelated with each other so that they can be distinguished from one another when detected by a single detector.Type: ApplicationFiled: June 28, 2021Publication date: October 21, 2021Applicant: Neural Propulsion Systems, Inc.Inventors: Babak HASSIBI, Behrooz REZVANI
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Patent number: 11047982Abstract: Disclosed herein are multiple-input, multiple-output (MIMO) LiDAR systems in which the fields of view of multiple illuminators (e.g., lasers) overlap and/or fields of view of multiple detectors (e.g., photodiodes) overlap. Some embodiments provide for illuminators that transmit pulse sequences that are substantially white and substantially uncorrelated so that they can be distinguished from one another when detected by a single detector.Type: GrantFiled: August 9, 2020Date of Patent: June 29, 2021Assignee: Neural Propulsion Systems, Inc.Inventors: Babak Hassibi, Behrooz Rezvani
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Patent number: 10931011Abstract: An antenna system comprises an antenna module, a controller, and a processor. The antenna module is capable of adopting, at any time, any one of a plurality of polarities. The controller is capable of providing a time-varying control signal to the antenna module. At a specified time, the time-varying control signal directs the antenna module to adopt a specified polarity. The processor obtains, from the antenna module, at least one digital stream in response to an incident radio-frequency (RF) signal impinging on the antenna module. At the specified time, the at least one digital stream corresponds to the antenna module having adopted the specified polarity. The processor analyzes the at least one digital stream from the antenna module, and generates an output signal corresponding to the incident RF signal.Type: GrantFiled: February 7, 2020Date of Patent: February 23, 2021Inventor: Behrooz Rezvani
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Publication number: 20210041562Abstract: Disclosed herein are multiple-input, multiple-output (MIMO) LiDAR systems in which the fields of view of multiple illuminators (e.g., lasers) overlap and/or fields of view of multiple detectors (e.g., photodiodes) overlap. Some embodiments provide for illuminators that transmit pulse sequences that have substantially white autocorrelation and are substantially uncorrelated so that they can be distinguished from one another when detected by a single detector.Type: ApplicationFiled: August 9, 2020Publication date: February 11, 2021Applicant: Neural Propulsion Systems, Inc.Inventors: Babak HASSIBI, Behrooz REZVANI
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Patent number: 10866304Abstract: Disclosed herein are systems and methods for estimating target ranges, angles of arrival, and speed using optimization procedures. Target ranges are estimated by performing an optimization procedure to obtain a denoised signal, performing a correlation of a transmitted waveform and the denoised signal, and using a result of the correlation to determine an estimate of a distance between the sensor and at least one target. Target angles of arrival are estimated by determining ranges at which targets are located, and, for each range, constructing an array signal from samples of received echo signals, and using the array signal, performing another optimization procedure to estimate a respective angle of arrival for each target of the at least one target. Doppler shifts may also be estimated using another optimization procedure. Certain of the optimization procedures use atomic norm techniques.Type: GrantFiled: September 12, 2019Date of Patent: December 15, 2020Assignee: Neural Propulsion Systems, Inc.Inventors: Babak Hassibi, Behrooz Rezvani
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Publication number: 20200176865Abstract: An antenna system comprises an antenna module, a controller, and a processor. The antenna module is capable of adopting, at any time, any one of a plurality of polarities. The controller is capable of providing a time-varying control signal to the antenna module. At a specified time, the time-varying control signal directs the antenna module to adopt a specified polarity. The processor obtains, from the antenna module, at least one digital stream in response to an incident radio-frequency (RF) signal impinging on the antenna module. At the specified time, the at least one digital stream corresponds to the antenna module having adopted the specified polarity. The processor analyzes the at least one digital stream from the antenna module, and generates an output signal corresponding to the incident RF signal.Type: ApplicationFiled: February 7, 2020Publication date: June 4, 2020Inventor: Behrooz Rezvani
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Patent number: 10559878Abstract: An antenna module, system, and method for receiving an incoming signal in a confined space are disclosed. The antenna module comprises a plurality of antenna elements and a plurality of combiners, each of the plurality of combiners coupled to a subset of the plurality of antenna elements. The system includes the antenna module, a processor, and a controller. The processor receives and analyzes outputs from the antenna module and generates an output signal corresponding to the incoming signal. The controller controls states of the antenna module, which is capable of being in any of a plurality of states to receive the incoming signal.Type: GrantFiled: September 8, 2019Date of Patent: February 11, 2020Inventor: Behrooz Rezvani
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Publication number: 20190393599Abstract: An antenna module, system, and method for receiving an incoming signal in a confined space are disclosed. The antenna module comprises a plurality of antenna elements and a plurality of combiners, each of the plurality of combiners coupled to a subset of the plurality of antenna elements. The system includes the antenna module, a processor, and a controller. The processor receives and analyzes outputs from the antenna module and generates an output signal corresponding to the incoming signal. The controller controls states of the antenna module, which is capable of being in any of a plurality of states to receive the incoming signal.Type: ApplicationFiled: September 8, 2019Publication date: December 26, 2019Inventor: Behrooz Rezvani
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Patent number: 10411341Abstract: An indoor antenna system comprises one or more antenna modules. Each antenna module comprises an antenna array configured to receive an input signal and generate a plurality of outputs, a selector that selects a subset of the plurality of outputs, and a converter that converts the subset of the plurality of outputs into a set of digital streams. The antenna system further includes a processor that receives and analyzes outputs from the one or more antenna modules and generates an output signal corresponding to the input signal, and a controller that controls states of the one or more antenna modules. Each antenna module is configurable to be in any of a plurality of states to receive the incoming signal. The controller is configured to cause the state of each antenna module to change.Type: GrantFiled: July 28, 2017Date of Patent: September 10, 2019Inventor: Behrooz Rezvani
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Patent number: 10375534Abstract: Techniques for transmitting and sharing a video sequence over an ultra-low bandwidth channel, such as a short message service (SMS) channel, are disclosed herein. A video is segmented into regions of various interest levels. A set of parameters is developed from a video region of a high interest, wherein the parameters represent a mapping function of a database to model the video region. The set of parameters is transmitted over the ultra-low bandwidth channel to a remote device, wherein the remote device also has access to an instance of the database. The remote device synthesizes the video by using the mapping function of the database, which is represented by the transmitted set of parameters.Type: GrantFiled: December 22, 2011Date of Patent: August 6, 2019Assignee: Seyyer, Inc.Inventor: Behrooz Rezvani
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Publication number: 20180034150Abstract: An indoor antenna system comprises one or more antenna modules. Each antenna module including an antenna array configured to receive an input signal and generate a plurality of outputs, a selector that selects a subset of the plurality of outputs, and a converter that converts the subset of the plurality of outputs into a set of digital streams. The antenna system further includes a processor that receives and analyzes outputs from the one or more antenna modules and generate an output signal corresponding to the input signal, and a controller that controls states of the one or more antenna modules. Each antenna module is configurable to be in any of a plurality of states to receive the incoming signal. The controller is configured to cause the state of each antenna module to change extremely fast so that each state lasts for a time corresponding to a few wavelengths, long enough so at least one wavelength is observed at a particular state.Type: ApplicationFiled: July 28, 2017Publication date: February 1, 2018Inventor: Behrooz Rezvani
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Patent number: 9082400Abstract: Techniques for generating a video sequence of a person based on a text sequence, are disclosed herein. Based on the received text sequence, a processing device generates the video sequence of a person to simulate visual and audible emotional expressions of the person, including using an audio model of the person's voice to generate an audio portion of the video sequence. The emotional expressions in the visual portion of the video sequence are simulated based a priori knowledge about the person. For instance, the a priori knowledge can include photos or videos of the person captured in real life.Type: GrantFiled: May 4, 2012Date of Patent: July 14, 2015Assignee: SEYYER, INC.Inventors: Behrooz Rezvani, Ali Rouhi
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Patent number: 8619887Abstract: Wireless devices capable of one or more of extended multiple input multiple output (MIMO), dual bonded, and dual concurrent operation are disclosed. Methods for switching between the operational states for wireless devices capable of multiple operational states are also disclosed.Type: GrantFiled: September 23, 2009Date of Patent: December 31, 2013Assignee: Quantenna Communications, Inc.Inventors: Behrooz Rezvani, Farrokh R. Farrokhi, Sam Heidari
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Patent number: 8483297Abstract: A technique involves using a fast Fourier transform (FFT) module to transform multiple different types of signals. This may be accomplished using one or more of three techniques: logic within the FFT module can enable different processing depending upon a processing state, the FFT module can be called iteratively to transform a signal that is larger than the FFT implemented in the FFT module, the FFT module can be used for parallel transformation of multiple signals that are smaller than the FFT implemented in the FFT module. Thus, a single FFT module can be used to transform a first type of signal (e.g., WIFI) and a second type of signal (e.g., GPS) if configured according to the technique.Type: GrantFiled: May 12, 2008Date of Patent: July 9, 2013Assignee: Quantenna Communications, Inc.Inventors: Behrooz Rezvani, Farrokh Farrokhi
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Patent number: 8446998Abstract: A technique for processing received signals in multiple-antenna systems. Received signals from the different antennas may be amplified by a Low Noise Amplifier (LNA) and time-multiplexed by a switch to form a single analog signal. The time-multiplexed analog signal is down-converted and processed using a single RF chain for each signal component. This may result in an N-fold decrease in hardware in multiple antenna receiver systems.Type: GrantFiled: May 4, 2007Date of Patent: May 21, 2013Assignee: Quantenna Communications, Inc.Inventors: Behrooz Rezvani, Farrokh Farrokhi, Andrea Goldsmith
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Publication number: 20130124206Abstract: Techniques for generating a video sequence of a person based on a text sequence, are disclosed herein. Based on the received text sequence, a processing device generates the video sequence of a person to simulate visual and audible emotional expressions of the person, including using an audio model of the person's voice to generate an audio portion of the video sequence. The emotional expressions in the visual portion of the video sequence are simulated based a priori knowledge about the person. For instance, the a priori knowledge can include photos or videos of the person captured in real life.Type: ApplicationFiled: May 4, 2012Publication date: May 16, 2013Applicant: Seyyer, Inc.Inventors: Behrooz Rezvani, Ali Rouhi