Patents Examined by Li Liu
  • Patent number: 10150323
    Abstract: An anti-counterfeiting method, system, and non-transitory computer readable medium, include a production circuit configured to produce a Directed Self-Assembly (DSA) pattern including a unique pattern, an analysis circuit configured to analyze the unique pattern, an embedding circuit configured to embed the unique pattern on a document, and a verification circuit configured to verify that the unique pattern embedded on the document corresponds to the document.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: December 11, 2018
    Inventors: Benjamin David Briggs, Lawrence A. Clevenger, Bartlet H. DeProspo, Michael Rizzolo
  • Patent number: 10148364
    Abstract: An example embodiment includes optical receiver that includes a polarization beam splitter (PBS), a polarization controller, and a forward error correction (FEC). The PBS is configured to split a received optical signal having an unknown polarization state into two orthogonal polarizations (x?-polarization and y?-polarization). The polarization controller includes no more than two couplers and no more than two phase shifters per wavelength channel of the x?-polarization and the y?-polarization. The polarization controller is configured to demultiplex the x?-polarization and the y?-polarization into a first demultiplexed signal having an first polarization on which a data signal is modulated and a second demultiplexed signal having a second, orthogonal polarization on which a pilot carrier oscillator signal is encoded. The FEC decoder module is configured to correct a burst of errors resulting from resetting one of the phase shifters based on error correction code (ECC) data encoded in the data signal.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: December 4, 2018
    Inventor: Ilya Lyubomirsky
  • Patent number: 10146021
    Abstract: A modular fiber optic patch panel system is disclosed. The system includes an enclosure and at least one patch panel module mounted in the enclosure. The enclosure includes a chassis with multiple module bays, each configured to receive a corresponding patch panel module. The patch panel modules each include a module housing, an input connector and an output connector. An optical directional coupler is connected to the input connector and a photodiode is positioned adjacent the optical directional coupler to measure an optical power level conveyed on the optical fiber. A data acquisition device is connected to the photodiode to capture the optical power level data and a microcontroller is connected to the data acquisition device to store the data.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: December 4, 2018
    Assignee: Facebook, Inc.
    Inventor: Kirk Erik Burgess
  • Patent number: 10142712
    Abstract: Embodiments describe transceiver architectures to enable ‘loopback’ operation, thereby allowing or on-chip or intra module characterization of the transceiver. This includes but is not limited to tests such as bit error rate (BER) characterization, received power characterization and calibration of filters (MUX, DMUX etc.) present in the transceiver. Embodiments may also describe architectures for superimposing low-speed data on to the signal coming out of a transmitter, which in turn enables low frequency communication between network elements in the external link.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: November 27, 2018
    Assignee: Aurrion, Inc.
    Inventors: John M. Garcia, Anand Ramaswamy, Gregory Alan Fish
  • Patent number: 10135542
    Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: November 20, 2018
    Assignee: Rockley Photonics Limited
    Inventors: Amit Singh Nagra, Hooman Abediasl, Joyce Kai See Poon, Zheng Yong
  • Patent number: 10135561
    Abstract: An optical communications system includes an optical transmitter and an optical receiver optically coupled to an optical combiner/splitter, the combiner/splitter coupled to optical media; and, another optical transmitter and another optical receiver optically coupled to another optical combiner/splitter, the another combiner/splitter remotely coupled to the optical media; wherein the optical transmitter and the another optical transmitter are configured to transmit optical signals at substantially the same wavelength.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: November 20, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Pinhas Yehuda Rosenfelder, Carmi Shapira
  • Patent number: 10133829
    Abstract: A system for deploying solar panels may include a classification module configured to receive an image of a structure with a roof and to classify portions of the image that include portions of the roof as roof image segments. The system may also include an identification module configured to identify a property of the roof based at least in part on the roof image segments and a configuration module configured to determine a configuration of one or more solar panels for placement on the roof based on the identified property of the roof.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: November 20, 2018
    Inventors: Wei-Peng Chen, Chetan Ramaiah
  • Patent number: 10129614
    Abstract: The present invention discloses a passive optical network communications method: reporting, by an optical network unit, ONU, a calibration record of the ONU, where the calibration record includes an ID of a calibrated wavelength channel; sending a first message to the ONU when the OLT determines, according to the calibration record, that a target wavelength channel ID corresponding to a target wavelength channel to which the ONU needs to switch is not in the calibration record, where the first message includes a forced wavelength switching flag; and instructing the ONU to switch to the calibrated target wavelength channel. In this way, the ONU can implement wavelength switching quickly after calibrating a new wavelength channel so as to perform data communication over the calibrated new wavelength channel.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: November 13, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bo Gao, Dekun Liu, Xuming Wu, Jianhe Gao
  • Patent number: 10128956
    Abstract: An optical communications apparatus comprising a host (100) and an optical module (200) comprising a Mach-Zehnder modulator (202), MZM, wherein the optical module is removably connected to the host via a connection path, the optical communications apparatus comprising: a signal generator (101) at the host, configured to generate a plurality of calibration signals at a plurality of frequencies; a host interface (102) configured to transmit the calibration signals to the optical module via the connection path; a module interface (201) configured to receive the transmitted calibration signals; wherein the MZM is configured to use the calibration signals to modulate a laser light source (206) and biased to a point at which average output power is proportional to the output modulated signal; an optical detector configured to measure an average magnitude of an output of the MZM when each of the calibration signals is used to modulate the laser light source; one of a host calibration unit (103) and a module calibrat
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 13, 2018
    Inventor: Robert Griffin
  • Patent number: 10128951
    Abstract: Optical fiber-based wireless systems and related components and methods support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The communications can be distributed between a head end unit (HEU) that receives carrier signals from one or more service or carrier providers and converts the signals to RoF signals for distribution over optical fibers to end points, which may be remote antenna units (RAUs). A microprocessor-based control system or systems may also be employed. The control systems may include one or more microprocessors or microcontrollers in one or more of the components of the system that execute software instructions to control the various components and provide various features for the optical fiber-based distributed antenna systems.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: November 13, 2018
    Assignee: Corning Optical Communications LLC
    Inventors: Raymond Allen Casterline, Steven Casey Kapp, Rajeshkannan Palanisamy, Eric Michael Sadowski, Dale Alan Webb, Michael Brian Webb
  • Patent number: 10121231
    Abstract: A method for filtering noise for imaging includes receiving an image frame having position and range data. A filter size divides the frame into filter windows for processing each of the filter windows. For the first pixel, a space to the center pixel and a range difference between this pixel and the center pixel is determined and used for choosing a selected weight from weights in a 2D weight LUT including weighting for space and range difference, a filtered range value is calculated by applying the selected 2D weight to the pixel, and the range, filtered range value and selected 2D weight are summed. The determining, choosing, calculating and summing are repeated for at least the second pixel. A total sum of contributions from the first and second pixel are divided by the sum of selected 2D weights to generate a final filtered range value for the center pixel.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: November 6, 2018
    Inventors: Mihir Narendra Mody, Shashank Dabral, Jesse Gregory Villarreal, Jr., William Wallace, Niraj Nandan
  • Patent number: 10116395
    Abstract: A photonic microwave mixing apparatus and method thereof are disclosed. An optical input carrying a frequency-to-be-converted microwave signal is injected into a photonic microwave mixing module of the photonic microwave mixing apparatus, wherein the photonic microwave mixing module includes a microwave mixing laser. The optical power and carrier frequency of the optical input are adjusted so as to place the microwave mixing laser in period-one nonlinear dynamics, and, at the same time, to achieve frequency-unlocking between the oscillation sidebands of the period-one nonlinear dynamics and the modulation sidebands of the optical input. Under such operation, the microwave mixing laser emits a nonlinear wave-mixing optical signal. Properly selecting the frequency components of the nonlinear wave-mixing optical signal through an optical frequency component selector generates an optical output carrying a frequency-converted microwave signal, therefore achieving microwave frequency conversion.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: October 30, 2018
    Assignee: National Chung Cheng University
    Inventors: Sheng-Kwang Hwang, Yu-Han Hung
  • Patent number: 10116385
    Abstract: During optical performance monitoring in low SNR conditions, the detection of pilot data may be more difficult because the detector may mistake noise for the pilot data signal. Systems and methods are disclosed herein that try to address this problem. In one embodiment, a pilot tone detector processes the received signal to determine a maximum correlation peak, and then performs tracking of the correlation peak over time. Unlike the pilot data signal, noise is typically more transient in nature. Therefore, if a correlation peak does not actually correspond to the pilot data signal, but instead corresponds to noise, then the correlation peak typically disappears over time when tracked. A search for a new correlation peak may then be performed. When a correlation peak is determined that actually corresponds to the pilot data signal, then the correlation peak typically remains when tracked.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 30, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhiping Jiang, Jianhong Ke, Dajiang Jin
  • Patent number: 10102634
    Abstract: Systems, devices, media, and methods are presented for segmenting an image of a video stream with a client device, binarizing an area of interest within one or more image, identifying an initial pupil location and an initial iris radius, and determining a final pupil location and a final iris radius. Some embodiments enable the client device to perform one or more operations within a user interface based on the image segmentation.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: October 16, 2018
    Assignee: Snap Inc.
    Inventor: Fedir Poliakov
  • Patent number: 10096117
    Abstract: A method for classifying a visual element in a video frame as either foreground or background, the video frame being characterized using a scene model comprising a plurality of modes, the method comprising the steps of: determining a blob boundary characteristic for a blob comprising at least the visual element; identifying a mode matched to the visual element; classifying the visual element and the matched mode as foreground dependent upon a match mode boundary characteristic of the matched mode; and updating the scene model dependent upon the blob boundary characteristic and the matched mode boundary characteristic.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Amit Kumar Gupta, Ashley John Partis, David Kenji See
  • Patent number: 10085707
    Abstract: The present invention correlates information, to be processed, about an organ and/or a disease, etc., obtained from a medical image and anatomical/functional medical knowledge information, and enables the information obtained from the medial image to be effectively utilized in medical examination and treatment processes. In a medical image information system (101), an image processing unit (103) processes an image, a graph model creation unit (104) creates a graph data model from the information obtained from the image, a graph data model processing unit (106) acquires a graph data model based on anatomical/functional medical knowledge, compares with each other and integrates the graph data models and stores an integrated graph data model, and a display processing unit (110) displays the integrated graph data model, whereby the effective use of information obtained from the image is made possible.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: October 2, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Kazuki Matsuzaki, Yuuichi Morimoto, Wataru Takeuchi, Kikuo Umegaki, Tohru Shiga, Koichi Yasuda
  • Patent number: 10091484
    Abstract: The present invention discloses a method for acquiring a comfort degree of a motion-sensing binocular stereoscopic video. The method includes the following steps: S1. carrying out binocular parallax and movement speed analysis on an input binocular video, and calculating a binocular parallax d, a movement speed vxy in a visual plane direction and a movement speed vz in a depth direction of each pixel point in the video; S2. calculating a corresponding comfort degree value c according to the parameters (d, vxy, vz) of the pixel point; S3. calculating the comfort degree value of the entire frame according to the calculated comfort degree value of each pixel point; S4. calculating the comfort degree value of the entire video according to the comfort degree value of each frame.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: October 2, 2018
    Inventors: Shimin Hu, Songpei Du, Masia Belen, Gutierrez Diego
  • Patent number: 10089768
    Abstract: An image processing device includes: a reference image selector configured to select one image of an image group as a reference image; a processing target image selector configured to select, as a processing target image, each of images of the image group other than the reference image; an arrangement order setting unit configured to set arrangement order of the images included in the image group; a conversion information estimation unit configured to estimate conversion information between the images adjacent to each other; a deformed image creation unit configured to create a deformed image by subjecting the processing target image to an image conversion using the conversion information cumulatively from the processing target image to the reference image in the arrangement order; and a color image creation unit configured to create a color image using the deformed images created based on the respective images and the reference image.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: October 2, 2018
    Inventors: Takeshi Otsuka, Yoichi Yaguchi
  • Patent number: 10083765
    Abstract: The present method provides for conversion of handwritten to data that is accurate and fast, yet with improved security. The method provides handwritten data split into two or more components and, thus, provided, out of context, for conversion into printed data, and for the secured transmittal of printed data for assembly into context for transmission to the client. The present disclosure also provides for storage of the unassembled data for future use.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 25, 2018
    Assignee: Paperclip Inc.
    Inventors: David Michael Bridges, Michael Alexander Suleski
  • Patent number: 10083523
    Abstract: Sensory processing of visual, auditory, and other sensor information (e.g., visual imagery, LIDAR, RADAR) is conventionally based on “stovepiped,” or isolated processing, with little interactions between modules. Biological systems, on the other hand, fuse multi-sensory information to identify nearby objects of interest more quickly, more efficiently, and with higher signal-to-noise ratios. Similarly, examples of the OpenSense technology disclosed herein use neurally inspired processing to identify and locate objects in a robot's environment. This enables the robot to navigate its environment more quickly and with lower computational and power requirements.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: September 25, 2018
    Assignee: Neurala, Inc.
    Inventors: Massimiliano Versace, Anatoly Gorshechnikov