Patents Examined by Li Liu
  • Patent number: 9900093
    Abstract: Disclosed herein is visible light communication technology having improved reception performance regardless of dimming control of lighting based on VPPM signals. A visible light communication apparatus includes a preamble generator for generating a preamble signal, a header generator for generating a PHY header, which includes information about the physical layer of a transmission packet and dimming information including the target dimming level of the transmission packet, a fixed dimming VPPM modulator for modulating the PHY header into a first VPPM signal according to a predetermined ratio, a transmission unit signal processor for generating transmission data by performing signal processing for data to be transmitted, a variable dimming VPPM modulator for modulating the transmission data into a second VPPM signal having the target dimming level of the transmission packet, and a signal synthesizer for forming the transmission packet by combining the first and second VPPM signals.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: February 20, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin-Doo Jeong, Tae-Gyu Kang, Myung-Soon Kim, Sang-Kyu Lim, Il-Soon Jang
  • Patent number: 9900604
    Abstract: A semiconductor integrated circuit according to an embodiment includes a compressor, a compression distortion detector, and an image-quality adjusting-parameter generator. The compressor generates a compressed image of an original image output from a host apparatus based on an image-quality adjusting parameter. The compression distortion detector detects a compression distortion of the compressed image. The image-quality adjusting-parameter generator updates the image-quality adjusting parameter based on the compression distortion.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: February 20, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Keiri Nakanishi
  • Patent number: 9893833
    Abstract: An optical device includes an optical port array having first and second optical inputs for receiving optical beams and a first plurality of optical outputs associated with switching functionality and a second plurality of optical outputs associated with channel monitoring functionality. A dispersion element receives the optical beam from an input and spatially separates the beam into a plurality of wavelength components. The focusing element focuses the wavelength components. The optical path conversion system receives the plurality of wavelength components and selectively directs each one to a prescribed one of the optical ports. The photodetectors are each associated with one of the optical outputs in the second plurality of optical outputs and receive a wavelength component therefrom. The controller causes the optical path conversion system to simultaneously direct each of the wavelength components to a different one of the optical outputs of the second plurality of optical outputs.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: February 13, 2018
    Assignee: Nistica, Inc.
    Inventor: Jefferson L. Wagener
  • Patent number: 9894426
    Abstract: Circuitry of a hybrid fiber-coaxial network may comprise a first transceiver configured to connect the circuitry to an optical link, a second transceiver configured to connect the circuitry to an electrical link, a first processing path, a second processing path, and a switching circuit. In a first configuration, the switching circuit may couple the first transceiver to the second transceiver via the first processing path. In a second configuration, the switching circuit may couple the first transceiver to the second transceiver via the second processing path. The first transceiver may comprise a passive optical network (PON) transceiver and the second transceiver may comprise a data over coaxial service interface specification (DOCSIS) physical layer transceiver. The switching circuit may be configured based on the type of headend to which the circuitry is connected.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 13, 2018
    Assignee: Maxlinear, Inc.
    Inventors: Sridhar Ramesh, Curtis Ling
  • Patent number: 9894427
    Abstract: In some embodiments, a system includes a set of servers, a set of switches within a switch fabric, and an optical device. The optical device is operatively coupled to the set of servers via a first set of optical fibers. Each server from the set of servers is associated with at least one wavelength from a set of wavelengths upon connection to the optical device. The optical device is operatively coupled to each switch from a set of switches via an optical fiber from a second set of optical fibers. The optical device, when operative, wavelength demultiplexes optical signals received from each switch from the set of switches, and sends, for each wavelength from the set of wavelengths, optical signals for that wavelength to the server from the set of servers.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: February 13, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Pradeep Sindhu, Roberto Marcoccia, Theodore J. Schmidt, George R. Sosnowski, Christian Malouin
  • Patent number: 9892330
    Abstract: The present application relates to a system for location measurement and night-time forward vehicle detection using a single multi-exposure camera and method thereof which use a long exposure and short exposure frame images among four exposure methods of a multi-exposure camera and applies a binarization method which use a local adaptive threshold value, and also applies a BLOB (Binary Large Objects) matching method which detects an identical candidate BLOB from a different exposure frame image thereby, enables further accurate detection and location measurement of a forward vehicle during night-time drive.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: February 13, 2018
    Assignee: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Ho Youl Jung, Hee Yong Lee, Dal Hyun Jang, Seung Hwan Lee, Chang Hyeon Park
  • Patent number: 9888161
    Abstract: Embodiments of the present disclosure provide a generation apparatus and method for evaluation information, an electronic device and a server. The generation apparatus for evaluation information includes: an acquiring unit configured to acquire an image to be evaluated; an analyzing unit configured to analyze the image to be evaluated according to pre-obtained information; and a generating unit configured to generate evaluation information of the image to be evaluated according to an analysis result of the analyzing unit. The evaluation information may be provided to a user for reference before shooting and/or publishing a photo, so that the user may adjust a content and/or a parameter of shooting, decide whether to shoot and/or publish the photo, and decide people to whom the photo is published, thereby improving user experiences.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: February 6, 2018
    Assignee: Sony Mobile Communications Inc.
    Inventors: Jun Shi, Qing Yang
  • Patent number: 9886765
    Abstract: A subject image is acquired. A virtual model of the subject having a predetermined body thickness distribution is acquired. A composite image of an estimated primary X-ray image, which is obtained by estimating a primary X-ray image of the virtual model obtained by radiography from the virtual model, and an estimated scattered X-ray image, which is obtained by estimating a scattered X-ray image of the virtual model obtained by radiography from the virtual model, is generated as an estimated image which is obtained by estimating a radiographic image of the subject obtained by radiography. The body thickness distribution of the virtual model is corrected such that a difference between the estimated image and the subject image is reduced. The corrected body thickness distribution of the virtual model is determined as the body thickness distribution of the subject.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: February 6, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Satoshi Naito
  • Patent number: 9883195
    Abstract: An image processing apparatus and a method thereof are provided. The image processing apparatus includes at least one processor configured to implement: a decoder which decodes input image data; and a rendering module which renders the decoded image data according to a rendering cycle which corresponds to a refresh rate of a display to display a plurality of image frames of the image data, wherein the decoder decodes the input image data only when the processor is not being in use for rendering by the rendering module.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: January 30, 2018
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventor: Hyun Gyu Lee
  • Patent number: 9881222
    Abstract: One or more signals are used to identify regions of interest of an image. The signals are applied to the image to generate one or more models that are based on the regions of interest. The models may present different perspectives of the image by emphasizing various features and focal points. The models may be ranked and displayed according to a scoring paradigm that is based on one or more signals. Multi-tiered feedback mechanisms allow for the collection of user intent and/or other forms of explicit input. Feedback associated to the models may be obtained and used to generate additional models that are based on one or more signals and the feedback. The feedback may also be stored and utilized for machine learning purposes.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: January 30, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ilya Tumanov, David Benjamin Lee, Jennifer Michelstein Halberstam, Nathaniel George Freier, Karim T. Farouki
  • Patent number: 9876581
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: January 23, 2018
    Assignee: INPHI CORPORATION
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Patent number: 9870516
    Abstract: Some examples of a sketch-based image recognition system may generate a model for identifying a subject of a sketch. The model is formed from a plurality of images having visual features similar to the visual features of the sketch. The model may include object topics representative of categories which may correspond to the subject of the sketch and shape topics representative of the visual features of the sketch.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: January 16, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Changhu Wang, Lei Zhang, Zhenbang Sun
  • Patent number: 9870606
    Abstract: In order to take into account the local illumination variations in a scene, the invention proposes a method of compensating illumination variations in which distributions are determined for each block of an image (or view) and, in order to avoid a loss of the video coding efficiency, a distribution-based mapping function is automatically computed by a remote apparatus, such a decoder, from only information available at that apparatus when decoding a current block of the sequence of images. The present invention relates also to a method and device of encoding and/or decoding a sequence of images which comprises means configured to implement the method of compensating illumination variations according to the invention.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: January 16, 2018
    Assignee: Thomson Licensing
    Inventors: Philippe Bordes, Yannick Olivier, David Touze, Franck Hiron
  • Patent number: 9858652
    Abstract: Techniques to generate global tone-mapping operators (G-TMOs) that, when applied to high dynamic range images, visually approximate the use of spatially varying tone-mapping operators (SV-TMOs) are described. The disclosed G-TMOs provide substantially the same visual benefits as SV-TMOs but do not suffer from spatial artifacts such as halos and are, in addition, computationally efficient compared to SV-TMOs. In general, G-TMOs may be identified based on application of a SV-TMO to a down-sampled version of a full-resolution input image (e.g., a thumbnail). An optimized mapping between the SV-TMO's input and output constitutes the G-TMO. It has been unexpectedly discovered that when optimized (e.g., to minimize the error between the SV-TMO's input and output), G-TMOs so generated provide an excellent visual approximation to the SV-TMO (as applied to the full-resolution image).
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: January 2, 2018
    Assignee: Apple Inc.
    Inventors: Graham D. Finlayson, Jakkarin Singnoo
  • Patent number: 9858497
    Abstract: Techniques are provided in which a plurality of edges are detected within a digital image. An anchor point located along an edge of the plurality of edges is selected. An analysis grid associated with the anchor point is generated, the analysis grid including a plurality of cells. An anchor point normal vector comprising a normal vector of the edge at the anchor point is calculated. Edge pixel normal vectors comprising normal vectors of the edge at locations along the edge within the cells of the analysis grid are calculated. A histogram of similarity is generated for each of one or more cells of the analysis grid, each histogram of similarity being based on a similarity measure between each of the edge pixel normal vectors within a cell and the anchor point normal vector, and a descriptor is generated for the analysis grid based on the histograms of similarity.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: January 2, 2018
    Assignee: Nant Holdings IP, LLC
    Inventors: Bing Song, Nicholas J. Witchey
  • Patent number: 9853737
    Abstract: Disclosed are bias control methods for Mach-Zehnder modulators for the generation of optical QAM signals while ensuring correct I/Q polarity of the generated optical QAM signal. One exemplary method involves temporarily offsetting I and Q biases from ideal transmission null bias points while another illustrative method temporarily makes I and Q data streams identical.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: December 26, 2017
    Assignee: Acacia Communications, Inc.
    Inventors: Christian Rasmussen, Seo Yeon Park, Mehrdad Givehchi
  • Patent number: 9853762
    Abstract: Systems and methods of sharing optical spectrum between a plurality of users of a submarine optical system includes receiving one or more optical signals from the plurality of users of the submarine optical system, wherein each of the plurality of users are assigned a slice of optical spectrum on the submarine optical system; monitoring each of the one or more optical signals to determine compliance with one or more constraints; and adding the one or more optical signals to the submarine optical system if compliant with the one or more constraints.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 26, 2017
    Assignee: Ciena Corporation
    Inventors: Darwin Bruce Evans, Robert Hadaway, Loren Berg
  • Patent number: 9852521
    Abstract: An image coding device including: an edge detecting section configured to perform edge detection using an image signal of a reference image for a coding object block; a transform block setting section configured to set transform blocks by dividing the coding object block such that a boundary between the blocks after division does not include an edge on a basis of a result of the edge detection; and a coding processing section configured to generate coded data by performing processing including an orthogonal transform of each of the transform blocks.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 26, 2017
    Assignee: SONY CORPORATION
    Inventors: Kazuhiro Shimauchi, Yuji Wada, Hiroshi Ikeda, Daisuke Tahara
  • Patent number: 9847835
    Abstract: A Lighting device, which performs visible light communication with a receiver including an image sensor, includes: a dividing unit that divides identification information assigned to the lighting device into N packets (where N is a natural number greater than or equal to 2); a block generator that generates signal blocks each of which includes M packets (where M is a natural number greater than or equal to N) that include at least one of each of the N packets; and a light source that sequentially transmits the signal blocks in (i) each frame cycle of the image sensor or in (ii) each cycle substantially equal to an integral multiple of the frame cycle, by superimposing each of the signal blocks onto illumination light. The block generator generates the signal blocks so that an order of arranging the M packets is different between consecutive signal blocks in the signal blocks.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: December 19, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeaki Yamasaki, Yoshihiko Matsukawa
  • Patent number: 9846222
    Abstract: An example of a lighting device including a light source, a modulator and a processor. The processor is configured to control the light source to emit light for general illumination and control the modulator to modulate the intensity of the emitted light to superimpose at least two sinusoids. Frequencies of the at least two sinusoids enable a mobile device to infer the physical location of the lighting device.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: December 19, 2017
    Assignee: ABL IP HOLDING LLC
    Inventors: Daniel Ryan, Kelby Edward Green, Emanuel Paul Malandrakis, Konstantin Klitenik