Patents by Inventor Pradeep Srinivasan

Pradeep Srinivasan 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).

  • Publication number: 20230103569
    Abstract: An optical sub-assembly includes a diode submount structure, a diode mounted to the diode submount, and a thermoelectric cooler (TEC). The TEC is in thermal contact with the diode, and the diode is positioned between the diode submount structure and the TEC.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 6, 2023
    Applicant: AEVA, INC.
    Inventors: Zhizhong Tang, Wenjing Liang, Kevin Kinichi Masuda, Pradeep Srinivasan
  • Publication number: 20230106643
    Abstract: A light detection and ranging (LIDAR) system and apparatus including a photonics chip mounted to a substrate, the photonics chip including one or more optical components and one or more electrical components and one or more integrated circuit (IC) chips mounted to the photonics chip to process an electrical signal generated by the one or more optical components and the one or more electrical components, wherein the one or more IC chips are physically separated from the substrate to reduce crosstalk on the LIDAR apparatus.
    Type: Application
    Filed: June 24, 2022
    Publication date: April 6, 2023
    Inventors: Zhizhong Tang, Pradeep Srinivasan, Bing Shen
  • Patent number: 11605930
    Abstract: A Distributed Feedback Laser (DFB) mounted on a Silicon Photonic Integrated Circuit (Si PIC), the DFB having a longitudinal length which extends from a first end of the DFB laser to a second end of the DFB laser, the DFB laser comprising: an epi stack, the epi stack comprising: one or more active material layers; a layer comprising a partial grating, the partial grating extending from the second end of the DFB laser, only partially along the longitudinal length of the DFB laser such that it does not extend to the first end of the DFB laser; a highly reflective medium located at the first end of the DFB laser; and a back facet located at the second end of the DFB laser.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: March 14, 2023
    Assignee: Rockley Photonics Limited
    Inventors: Mazin Alalusi, Kevin Masuda, Pradeep Srinivasan
  • Publication number: 20230034392
    Abstract: A system and method for facilitating data sharing between a first organization and a second organization. The method encompasses initiating, a secure network link between a digital platform of the first organization and the second organization. The method further comprises identifying, a first set of customer identifiers. Thereafter the method comprises receiving, a second bloom filter at the digital platform of the first organization. The method further comprises identifying, a first set of uncommon customers between the first organization and the second organization based on the second bloom filter and the first set of customer identifiers. Thereafter the method encompasses creating, a third bloom filter for the first set of uncommon customers. The method further comprises identifying, at the digital platform of the first organization, a first set of potentially common customers based at least on the third bloom filter and the first set of customer identifiers.
    Type: Application
    Filed: July 12, 2022
    Publication date: February 2, 2023
    Applicant: Flipkart Internet Private Limited
    Inventors: Pradyot H ADAVI, Pradeep SRINIVASAN, Sujeet KUMAR
  • Patent number: 11550171
    Abstract: An interferometer comprises a plurality of waveguide branches comprising a plurality of bus waveguides and a plurality of photonic resonators. A first waveguide branch of the plurality of waveguide branches comprises a first photonic resonator coupled to a first bus waveguide. The first photonic resonator is disposed to couple and circle a first portion of an optical beam at the first photonic resonator to generate a first phase shift of the first portion of the optical beam, where the first phase shift is the same as a second phase shift of a second photonic resonator coupled to a second bus waveguide.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: January 10, 2023
    Assignee: Aeva, Inc.
    Inventors: Brian J. Roxworthy, Pradeep Srinivasan
  • Publication number: 20220373652
    Abstract: A light detection and ranging apparatus (LIDAR) includes at least one waveguide including a first cladding layer having a first refractive index and a second cladding layer having multiple second refractive indexes to expand an optical mode of an optical beam propagating within the waveguide. The second refractive indexes include a gradient of refractive indexes and the first refractive index is less than the second refractive indexes.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 24, 2022
    Inventors: Mazin Alalusi, Pradeep Srinivasan, Kevin Masuda
  • Publication number: 20220357438
    Abstract: A LIDAR system includes multiple waveguides to receive a return signal at different angles from a scanning mirror, multiple optical detectors to receive the return signal the plurality of waveguides, and a signal processing system operatively coupled to the plurality of optical detectors. The signal processing system is to process a signal generated from each of the optical detectors and combine the processed signals from the different optical detectors into a combined signal, wherein the combined signal is used to determine range and velocity information associated with a target.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 10, 2022
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk
  • Patent number: 11422243
    Abstract: A LIDAR system includes an optical source and multiple waveguides at different positions within the LIDAR system to receive a return signal. A first waveguide receives a first portion of the return signal at a first angle relative to the scanning mirror and a second waveguide receives a second portion of the return signal at a second angle relative to the scanning mirror. The system further includes multiple optical detectors at different positions within the LIDAR system. A first optical detector receives the first portion of the return signal from the first waveguide and a second optical detector receives the second portion of the return signal from the second waveguide. The system further includes a signal processing system operatively coupled to the plurality of optical detectors to determine a distance and velocity of the target object based on the returned signal and corresponding positions of the plurality of waveguides.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: August 23, 2022
    Assignee: AEVA, INC.
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk
  • Patent number: 11408980
    Abstract: A light detection and ranging apparatus (LIDAR) includes an optical source to generate an optical beam and one or more waveguides to steer the optical beam. The one or more waveguides include a first cladding layer having a first refractive index and a second cladding layer disposed below the first cladding layer, the second cladding layer having second refractive indexes including a range of different refractive indexes, wherein the range of different refractive indexes is greater than the first refractive index of the first cladding layer.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: August 9, 2022
    Assignee: Aeva, Inc.
    Inventors: Mazin Alalusi, Pradeep Srinivasan, Kevin Masuda
  • Publication number: 20220221742
    Abstract: An interferometer comprises a plurality of waveguide branches comprising a plurality of bus waveguides and a plurality of photonic resonators. A first waveguide branch of the plurality of waveguide branches comprises a first photonic resonator coupled to a first bus waveguide. The first photonic resonator is disposed to couple and circle a first portion of an optical beam at the first photonic resonator to generate a first phase shift of the first portion of the optical beam, where the first phase shift is the same as a second phase shift of a second photonic resonator coupled to a second bus waveguide.
    Type: Application
    Filed: November 30, 2021
    Publication date: July 14, 2022
    Inventors: Brian J. Roxworthy, Pradeep Srinivasan
  • Patent number: 11378664
    Abstract: A light detection and ranging (LIDAR) system and apparatus including a photonics chip coupled to a substrate, the photonics chip including an optical source to generate an optical beam, a waveguide to direct the optical beam through the photonics chip, a photodetector to generate an electrical signal in response to detecting a return signal, and an optical coupler to transmit the optical beam from the waveguide to a target in the field of view of the LIDAR apparatus. The system and apparatus may further include an integrated circuit (IC) chip coupled to the photonics chip, the IC chip to process the electrical signal generated by the photodetector.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: July 5, 2022
    Assignee: Aeva, Inc.
    Inventors: Zhizhong Tang, Pradeep Srinivasan, Bing Shen
  • Patent number: 11372105
    Abstract: A system including one or more waveguides to receive a first returned reflection having a first lag angle and generate a first waveguide signal, receive a second returned reflection having a second lag angle different from the first lag angle, and generate a second waveguide signal. The system includes one or more photodetectors to generate a first output signal within a first frequency range, and generate, based on the second waveguide signal and a second LO signal, a second output signal within a second frequency range. The system includes an optical frequency shifter (OFS) to shift a frequency of the second LO signal to cause the second output signal to shift from within the second frequency range to within the first frequency range to generate a shifted signal. The system includes a processor to receive the shifted signal to produce one or more points in a point set.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: June 28, 2022
    Assignee: Aeva, Inc.
    Inventors: Brian J. Roxworthy, Pradeep Srinivasan, Ashwin Samarao
  • Publication number: 20220200244
    Abstract: A multi-channel laser source, including: a bus waveguide coupled, at an output end of the bus waveguide, to an output of the multi-channel laser source; a first semiconductor optical amplifier; a first back mirror; a first wavelength-dependent coupler, having a first resonant wavelength, on the bus waveguide; a second semiconductor optical amplifier; a second back mirror; and a second wavelength-dependent coupler, on the bus waveguide, having a second resonant wavelength, different from the first resonant wavelength. In some embodiments the first semiconductor optical amplifier is coupled to the bus waveguide by the first wavelength-dependent coupler, which is nearer to the output end of the bus waveguide than the second wavelength-dependent coupler, the second semiconductor optical amplifier is coupled to the bus waveguide by the second wavelength-dependent coupler, and the first wavelength-dependent coupler is configured to transmit light, at the second resonant wavelength, along the bus waveguide.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 23, 2022
    Inventors: Aaron John ZILKIE, Pradeep SRINIVASAN
  • Publication number: 20220196813
    Abstract: A polarization splitter-rotator (PSR) is described. The PSR having a silicon nitride based waveguide to split and rotate an optical beam. The silicon nitride based waveguide having a first silicon nitride segment including a first layer and a second layer coupled with the first layer.
    Type: Application
    Filed: July 12, 2021
    Publication date: June 23, 2022
    Inventors: Bing Shen, Kevin Masuda, Brett E. Huff, Pradeep Srinivasan
  • Patent number: 11362485
    Abstract: Embodiments of the present disclosure include method for sequentially mounting multiple semiconductor devices onto a substrate having a composite metal structure on both the semiconductor devices and the substrate for improved process tolerance and reduced device distances without thermal interference. The mounting process causes “selective” intermixing between the metal layers on the devices and the substrate and increases the melting point of the resulting alloy materials.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: June 14, 2022
    Assignee: Aeva, Inc.
    Inventors: Zhizhong Tang, Pradeep Srinivasan, Kevin Masuda, Wenjing Liang
  • Publication number: 20220137198
    Abstract: A LIDAR system includes an optical source and multiple waveguides at different positions within the LIDAR system to receive a return signal. A first waveguide receives a first portion of the return signal at a first angle relative to the scanning mirror and a second waveguide receives a second portion of the return signal at a second angle relative to the scanning mirror. The system further includes multiple optical detectors at different positions within the LIDAR system. A first optical detector receives the first portion of the return signal from the first waveguide and a second optical detector receives the second portion of the return signal from the second waveguide. The system further includes a signal processing system operatively coupled to the plurality of optical detectors to determine a distance and velocity of the target object based on the returned signal and corresponding positions of the plurality of waveguides.
    Type: Application
    Filed: May 13, 2021
    Publication date: May 5, 2022
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk
  • Publication number: 20220138865
    Abstract: Systems and methods for distributing transaction files among accounts corresponding to a physical card. The method includes receiving a transaction file from a transaction processing entity. The transaction file is associated with a physical card. The method also includes identifying at least one purse segment in the transaction file. Each purse segment corresponds to a transaction associated with the physical card. The method further includes, for each of the at least one purse segments, identifying a purse ID corresponding to at least one account associated with the physical card and extracting transaction data from the transaction file corresponding to the purse ID. The method also includes, for each of the at least one purse segments, storing the transaction data corresponding to the purse ID into a distribution file and transmitting the distribution file to an account processing system.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 5, 2022
    Inventors: Thejaswini Srikanta, Jayesh Parab, Pradeep Srinivasan Madhu
  • Publication number: 20220059996
    Abstract: A multi-channel laser source, including: a bus waveguide coupled, at an output end of the bus waveguide, to an output of the multi-channel laser source; a first semiconductor optical amplifier; a first back mirror; a first wavelength-dependent coupler, having a first resonant wavelength, on the bus waveguide; a second semiconductor optical amplifier; a second back mirror; and a second wavelength-dependent coupler, on the bus waveguide, having a second resonant wavelength, different from the first resonant wavelength. In some embodiments the first semiconductor optical amplifier is coupled to the bus waveguide by the first wavelength-dependent coupler, which is nearer to the output end of the bus waveguide than the second wavelength-dependent coupler, the second semiconductor optical amplifier is coupled to the bus waveguide by the second wavelength-dependent coupler, and the first wavelength-dependent coupler is configured to transmit light, at the second resonant wavelength, along the bus waveguide.
    Type: Application
    Filed: November 4, 2021
    Publication date: February 24, 2022
    Inventors: Aaron John ZILKIE, Pradeep SRINIVASAN
  • Patent number: 11237250
    Abstract: A light detection and ranging apparatus (LIDAR) includes an optical source to generate an optical beam and one or more waveguides to steer the optical beam. The one or more waveguides include a first cladding layer having a first refractive index and a second cladding layer disposed below the first cladding layer, the second cladding layer having second refractive indexes including a range of different refractive indexes, wherein the range of different refractive indexes is greater than the first refractive index of the first cladding layer.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 1, 2022
    Assignee: Aeva, Inc.
    Inventors: Mazin Alalusi, Pradeep Srinivasan, Kevin Masuda
  • Patent number: 11209677
    Abstract: An interferometer comprises a plurality of waveguide branches, where each waveguide branch of the plurality of waveguide branches is disposed to shift a phase of a corresponding portion of the optical beam. Each waveguide branch comprises a bus waveguide and a photonic resonator coupled to the bus waveguide, where the photonic resonator is disposed proximate to the bus waveguide, and where the photonic resonator is disposed to couple and circle the corresponding portion of the optical beam, at the photonic resonator, one or more times to shift the phase of the corresponding portion of the optical beam.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: December 28, 2021
    Assignee: Aeva, Inc.
    Inventors: Brian J. Roxworthy, Pradeep Srinivasan