Patents by Inventor Babak Hassibi

Babak Hassibi 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).

  • Patent number: 11001881
    Abstract: This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 11, 2021
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Arjang Hassibi, Babak Hassibi, Haris Vikalo
  • Publication number: 20210133571
    Abstract: Systems and methods for training models in accordance with embodiments of the invention are illustrated. One embodiment includes a method for training an overparameterized model. The method includes steps for initializing an overparameterized model, receiving a set of one or more training samples, determining losses for the set of training samples based on a loss function by computing a loss component of the loss function, and computing a regularizing component of the loss function, wherein computing the regularizing component includes applying a potential function to weights of the overparameterized model, and updating weights of the model based on the determined losses for the set of training samples.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 6, 2021
    Applicant: California Institute of Technology
    Inventors: Navid Azizan Ruhi, Ali Sahin Lale, Babak Hassibi
  • Patent number: 10992353
    Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: April 27, 2021
    Assignees: California Institute of Technology, The Regents of the University of California, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung, Hamid Jafarkhani
  • Patent number: 10992507
    Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 27, 2021
    Assignees: California Institute of Technology, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung
  • Publication number: 20210041562
    Abstract: 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: Application
    Filed: August 9, 2020
    Publication date: February 11, 2021
    Applicant: Neural Propulsion Systems, Inc.
    Inventors: Babak HASSIBI, Behrooz REZVANI
  • Publication number: 20200403664
    Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Applicants: California Institute of Technology, The Regents of the University of California, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung, Hamid Jafarkhani
  • Publication number: 20200403837
    Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 24, 2020
    Applicants: California Institute of Technology, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung
  • Patent number: 10866304
    Abstract: 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: Grant
    Filed: September 12, 2019
    Date of Patent: December 15, 2020
    Assignee: Neural Propulsion Systems, Inc.
    Inventors: Babak Hassibi, Behrooz Rezvani
  • Patent number: 10804982
    Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: October 13, 2020
    Assignees: California Institute of Technology, The Regents of the University of California, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung, Hamid Jafarkhani
  • Patent number: 10797926
    Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 6, 2020
    Assignees: California Institute of Technology, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung
  • Publication number: 20200259534
    Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Applicants: California Institute of Technology, The Regents of the University of California, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung, Hamid Jafarkhani
  • Publication number: 20190323070
    Abstract: This present disclosure provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The present disclosure also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 24, 2019
    Inventors: Arjang HASSIBI, Babak HASSIBI, Haris VIKALO, Jose Luis RIECHMANN
  • Patent number: 10425106
    Abstract: Balanced Reed-Solomon codes in accordance with embodiments of the invention enable balanced load in distributed storage systems. One embodiment includes a storage controller, wherein the storage processor is configured by the controller Reed-Solomon application to: receive a data segment; partition the data segment into a first block of data and a second block of data; transmit the first block of data to a first node controller in the plurality of node controllers; transmit the second block of data to a second node controller in the plurality of node controllers; wherein the node processor in the first node controller is configured by the node Reed-Solomon application to: receive the first block of data; encode the first block of data using a balanced and sparsest error-correcting code; and store the encoded first block of data in the node memory of the first node controller.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 24, 2019
    Assignee: California Institute of Technology
    Inventors: Wael Halbawi, Babak Hassibi, Zihan Liu
  • Publication number: 20190238379
    Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Applicants: California Institute of Technology, Technische Universität Berlin
    Inventors: Philipp Walk, Babak Hassibi, Peter Jung
  • Publication number: 20180251828
    Abstract: This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Arjang Hassibi, Babak Hassibi, Haris Vikalo
  • Publication number: 20180251829
    Abstract: This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Arjang Hassibi, Babak Hassibi, Haris Vikalo
  • Publication number: 20180152204
    Abstract: Balanced Reed-Solomon codes in accordance with embodiments of the invention enable balanced load in distributed storage systems. One embodiment includes a storage controller, wherein the storage processor is configured by the controller Reed-Solomon application to: receive a data segment; partition the data segment into a first block of data and a second block of data; transmit the first block of data to a first node controller in the plurality of node controllers; transmit the second block of data to a second node controller in the plurality of node controllers; wherein the node processor in the first node controller is configured by the node Reed-Solomon application to: receive the first block of data; encode the first block of data using a balanced and sparsest error-correcting code; and store the encoded first block of data in the node memory of the first node controller.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicant: California Institute of Technology
    Inventors: Wael Halbawi, Babak Hassibi, Zihan Liu
  • Publication number: 20170362648
    Abstract: This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample. Also provided herein are biosensor arrays, systems and methods for affinity based assays that are able to simultaneously obtain high quality measurements of the binding characteristics of multiple analytes, and that are able to determine the amounts of those analytes in solution. The invention also provides a fully integrated bioarray for detecting real-time characteristics of affinity based assays.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 21, 2017
    Inventors: Arjang HASSIBI, Babak Hassibi, Haris Vikalo
  • Publication number: 20170081714
    Abstract: This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 23, 2017
    Inventors: Arjang Hassibi, Babak Hassibi, Haris Vikalo
  • Patent number: 9458497
    Abstract: This invention provides methods and systems for measuring the concentration of multiple nucleic acid sequences in a sample. The nucleic acid sequences in the sample are simultaneously amplified, for example, using polymerase chain reaction (PCR) in the presence of an array of nucleic acid probes. The amount of amplicon corresponding to the multiple nucleic acid sequences can be measured in real-time during or after each cycle using a real-time microarray. The measured amount of amplicon produced can be used to determine the original amount of the nucleic acid sequences in the sample.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 4, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Arjang Hassibi, Babak Hassibi, Haris Vikalo