Patents by Inventor Bradley Jonathan Luff

Bradley Jonathan Luff 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: 20200333443
    Abstract: A LIDAR system concurrently outputs multiple LIDAR output signals that concurrently illuminate the same sample region in a field of view for a data period. The sample region is one of multiple sample regions included in the field of view. The LIDAR system also includes electronics that use the multiple LIDAR output signals to generate LIDAR data for the sample region. The LIDAR data includes a distance and/or a radial velocity between the LIDAR system and an object that reflects the LIDAR output signals.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 22, 2020
    Inventors: Majid Boloorian, Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200309949
    Abstract: The LIDAR chip includes a utility waveguide that guides an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the chip. The chip also includes a control branch that removes a portion of the outgoing LIDAR signal from the utility waveguide. The control branch includes a control light sensor that receives a light signal that includes light from the removed portion of the outgoing LIDAR signal. The chip also includes a data branch that removes a second portion of the outgoing LIDAR signal from the utility waveguide. The data branch includes a light-combining component that combines a reference light signal that includes light from the second portion of the outgoing LIDAR signal with a comparative light signal that includes light that was reflected off an object located off of the chip.
    Type: Application
    Filed: June 13, 2020
    Publication date: October 1, 2020
    Inventors: Dazeng Feng, Bradley Jonathan Luff, Mehdi Asghari
  • Patent number: 10788582
    Abstract: The LIDAR chip includes a utility waveguide that guides an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the chip. The chip also includes a control branch that removes a portion of the outgoing LIDAR signal from the utility waveguide. The control branch includes a control light sensor that receives a light signal that includes light from the removed portion of the outgoing LIDAR signal. The chip also includes a data branch that removes a second portion of the outgoing LIDAR signal from the utility waveguide. The data branch includes a light-combining component that combines a reference light signal that includes light from the second portion of the outgoing LIDAR signal with a comparative light signal that includes light that was reflected off an object located off of the chip.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: September 29, 2020
    Assignee: SiLC Technologies, Inc.
    Inventors: Dazeng Feng, Bradley Jonathan Luff, Mehdi Asghari
  • Publication number: 20200284879
    Abstract: A LIDAR system includes a LIDAR chip that generates a LIDAR output signal. The LIDAR chip includes a utility waveguide configured to carry one or more light signals selected from an outgoing LIDAR signal and an incoming LIDAR signal. The system also includes an amplifier that has an amplifier waveguide with a first facet and a second facet. The amplifier being positioned such that the first facet is optically aligned with a facet of the utility waveguide but the second facet is not optically aligned with any waveguide.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 10, 2020
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200256956
    Abstract: Multiple LIDAR output signals are generated and are concurrently directed to the same sample region in a field of view. The LIDAR output signals have one or more optical diversities selected from a group consisting of wavelength diversity, polarization diversity, and diversity of an angle of incidence of the LIDAR output signal relative to the sample region.
    Type: Application
    Filed: February 3, 2020
    Publication date: August 13, 2020
    Inventors: Bradley Jonathan Luff, Dazeng Feng, Mehdi Asghari
  • Publication number: 20200249322
    Abstract: A LIDAR system has multiple LIDAR chips that each outputs a LIDAR output signal. External optics receive the LIDAR output signals from the LIDAR chips and operate on the LIDAR output signals such that the LIDAR output signals travel away from the external optics in different directions. A steering device receives the LIDAR output signals from the external optics and operates on the LIDAR output signals such that the LIDAR output signals travel away from the steering device in different directions. The system also includes electronics configured to operate the steering device so as to steer each LIDAR output signal to different sample regions in a field of view.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200241119
    Abstract: A LIDAR system includes a demultiplexer that separates an outgoing LIDAR signal into multiple LIDAR output signals that each carries a different channel and the different channels are each at a different wavelength. The system also includes a beam distributor that receives each of the LIDAR output signals. The beam distributor directs the received LIDAR output signals such that different LIDAR output signals travel away from the beam distributor in different directions.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200182973
    Abstract: A LIDAR system includes a LIDAR chip configured to generate a LIDAR output signal that exits from a waveguide on the LIDAR chip. The system also includes optics that receive the LIDAR output signal from the waveguide. Electronics are configured to tune an image distance at which the LIDAR output signal is focused after exiting from the optics.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 11, 2020
    Inventors: Bradley Jonathan Luff, Dazeng Feng, Mehdi Asghari
  • Publication number: 20200158830
    Abstract: The optical manifold has multiple cores that each generates an outgoing LIDAR signal that carries one or more channels. Scanning heads are located apart from the manifold. Each scanning head is associated with one of the cores and is configured such that each scanning head receives an outgoing LIDAR signal from the associated core. The scanning heads are each configured to transmit one or more LIDAR output signals that each carries light from a different one of the channels and such that the different LIDAR output signals each travels away from the scanning head in a different direction. Each of the cores is associated with different core electronics. The core electronics are configured to tune a property of one of the outgoing LIDAR signals such that the tuning of the property causes a change to the direction that the one or more LIDAR output signals travel away from the scanning head associated with the core electronics.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 21, 2020
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff, Majid Boloorian
  • Publication number: 20200142065
    Abstract: A LIDAR system includes a reference light source configured to generate an outgoing light signal that includes multiple reference channels that each has a different frequency. The system also includes a comparative light source configured to generate an outgoing light signal that includes multiple comparative channels. Each of the comparative channels has a different frequency. The comparative channels are each associated with one of the reference channels in that LIDAR data is generated for a sample region on a field of view using a comparative channel and the associated reference channel. The comparative channel and the associated reference channel have different frequencies.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 7, 2020
    Inventors: Majid Boloorian, Dazeng Feng, Bradley Jonathan Luff, Mehdi Asghari
  • Publication number: 20200116837
    Abstract: A LIDAR system includes a light source configured to generate an outgoing light signal that includes multiple channels that are each of a different wavelength. The system includes optical components that generate composite light signals. Each composite light signal includes light from a LIDAR input signal combined with light from a reference signal. The LIDAR input signals each includes light that was reflected by an object located apart from the system and that was included also in one of the channels. The reference signals do not include light that was reflected by the object but include light from one of the channels. Each of the composite signals is generated such that the reference signal and the LIDAR input included in the composite signal includes light from the same channel.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 16, 2020
    Inventors: Mehdi Aghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200116842
    Abstract: A LIDAR system is configured to generate an outgoing light signal that exits from the LIDAR system. The LIDAR system is configured to receive an incoming light signal that enters the LIDAR system and that includes light from the outgoing light signal. The LIDAR system also includes an optical switch that receives the outgoing light signal and the incoming light signal and is configured to be operated in different modes. The incoming light signal and/or the outgoing light signal are routed along different optical paths through the LIDAR system in response to the optical switch being in different modes.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 16, 2020
    Inventors: Mehdi Aghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200057143
    Abstract: A LIDAR system includes an emitter head configured to receive LIDAR output signals from one or more LIDAR chips and to output head output signals that each includes light from one of the LIDAR output signals. The emitter head is movable relative to the one or more LIDAR chips. The one or more LIDAR chips are configured to receive LIDAR input signals that each includes light from one of the head output signals. The LIDAR input signals include LIDAR data indicating the distance and/or radial velocity between a LIDAR chip and an object.
    Type: Application
    Filed: March 11, 2019
    Publication date: February 20, 2020
    Inventors: Mehdi Asghari, Bradley Jonathan Luff
  • Publication number: 20200025926
    Abstract: A LIDAR system includes a LIDAR chip and local electronics that receive signals from the LIDAR chip. The local electronics are configured to operate one or more components on the LIDAR chip such that the LIDAR chip transmits an optical data signal from the LIDAR chip such that optical data signal includes data generated from the signals received from the LIDAR chip.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 23, 2020
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20200018857
    Abstract: A LIDAR system has a LIDAR chip that includes an optical port through which a light signal exits from the optical chip. The light signal includes data from which a value of one or more components can be approximated. The one or more components selected from a group consisting of a relative distance between the LIDAR chip and an object located off the LIDAR chip, and a radial velocity between the object and the LIDAR chip.
    Type: Application
    Filed: August 27, 2018
    Publication date: January 16, 2020
    Inventors: Dazeng Feng, Mehdi Asghari, Bradley Jonathan Luff
  • Publication number: 20190391242
    Abstract: An optical system has a LIDAR chip that includes a switch configured to direct an outgoing LIDAR signal to one of multiple different alternate waveguides. The system also includes a redirection component configured to receive the outgoing LIDAR signal from any one of the alternate waveguides. The redirection component is also configured to redirect the received outgoing LIDAR signal such that a direction that the outgoing LIDAR signal travels away from the redirection component changes in response to changes in the alternate waveguide to which the optical switch directs the outgoing LIDAR signal.
    Type: Application
    Filed: February 15, 2019
    Publication date: December 26, 2019
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20190369251
    Abstract: The chip includes multiple steering waveguides positioned on a base. Each of the steering waveguides is being configured to carry an output signal. The steering waveguides each terminate at a facet. The facets are arranged such that output signals exit the chip through the facets and combine to form a LIDAR output signal. The chip also includes phase tuners positioned on at least a portion of the steering waveguides. Electronics operate the phase tuners so as to tune a phase differential between the output signals on adjacent steering waveguides. The electronics tune the phase differential so as to tune the direction that the LIDAR output signal travels away from the chip.
    Type: Application
    Filed: January 23, 2019
    Publication date: December 5, 2019
    Inventors: Dazeng Feng, Bradley Jonathan Luff, Mehdi Asghari
  • Publication number: 20190369244
    Abstract: The chip includes multiple component assemblies that are each configured to generate and steer a direction of a LIDAR output signal that exits from the chip. The LIDAR output signals generated by different components assemblies have different wavelengths.
    Type: Application
    Filed: January 25, 2019
    Publication date: December 5, 2019
    Inventors: Mehdi Asghari, Dazeng Feng, Bradley Jonathan Luff
  • Publication number: 20190346568
    Abstract: The LIDAR chip includes a utility waveguide that guides an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the chip. The chip also includes a control branch that removes a portion of the outgoing LIDAR signal from the utility waveguide. The control branch includes a control light sensor that receives a light signal that includes light from the removed portion of the outgoing LIDAR signal. The chip also includes a data branch that removes a second portion of the outgoing LIDAR signal from the utility waveguide. The data branch includes a light-combining component that combines a reference light signal that includes light from the second portion of the outgoing LIDAR signal with a comparative light signal that includes light that was reflected off an object located off of the chip.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 14, 2019
    Applicant: SiLC Technologies, Inc.
    Inventors: Dazeng Feng, Bradley Jonathan Luff, Mehdi Asghari
  • Patent number: 10330864
    Abstract: An optical device includes a waveguide on a base and a taper on the base. The waveguide and the taper are optically aligned such that the taper and the waveguide exchange light signals during operation of the device. The taper is configured to guide the light signals through a taper material and the waveguide is configured to guide the light signals through a waveguide medium. The taper material and the waveguide medium are different materials and/or have different indices of refraction.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 25, 2019
    Assignee: Mellanox Technologies Silicon Photonics Inc.
    Inventors: Mehdi Asghari, Wei Qian, Pegah Seddighian, Bradley Jonathan Luff, Dazeng Feng, Joan Fong, Cheng-Chih Kung, Monish Sharma