Optical Communication Over Freee Space Patents (Class 398/118)
  • Patent number: 11153161
    Abstract: An Internet of Things, IoT, structure including application layers with a 3D Adaption Matrix, a server for an IoT structure, a device for an IoT application and a method for manipulating dependencies between the application layers is provided. The 3D Adaption Matrix includes adaption rules, which adaption rules are specified once and which adaption rules enable specifying dependencies between the application layers. A module of the IoT structure is configured to employ the adaption rules for an IoT application.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 19, 2021
    Inventors: Jan-Gregor Fischer, Thomas Hubauer, Michael Pirker
  • Patent number: 11074809
    Abstract: A communication system includes a first terminal and a second terminal including an stow part for stowing the first terminal. The first terminal includes a first light emitter that emits infrared light, a first light receiver that receives infrared light, and a first controller. The first controller causes the first light emitter to emit light based on first specifying information upon receiving a pairing request signal via the first light receiver. The second terminal includes a second stow sensor that detects stow of the first terminal, a second light emitter that emits infrared light, a second light receiver that receives infrared light, and a second controller. The second controller causes the second light emitter to emit light based on a pairing request signal in accordance with detection of stow of the first terminal by the second stow sensor and performs control corresponding to the information including the first specifying information.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 27, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Daiki Kurioka, Mitsuru Segawa, Yoshifumi Asao
  • Patent number: 11005565
    Abstract: Embodiments relate to a free space optical (FSO) communication terminal. The terminal includes an optical source and optics. The optical source can produce optical beams at different wavelengths. The optics direct optical beams in a direction towards a remote FSO communication terminal. A wavelength dependence of the optics results in a divergence of the optical beam that depends on a wavelength of the optical beam. A controller may control the wavelength of the optical beam produced by the optical source, thereby adjusting the divergence of the optical beam (e.g., according to an acquisition process or a tracking process).
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: May 11, 2021
    Assignee: SA Photonics, Inc.
    Inventors: Greg G. Mitchell, Dmitry V. Bakin, David A. Pechner
  • Patent number: 10998584
    Abstract: A battery management apparatus is provided. The battery management apparatus receives a first address assignment message from a first neighboring battery management apparatus through a first infrared (IR) communicator, sets an address of the battery management apparatus based on the received first address assignment message, determines an address of a second neighboring battery management apparatus based on the set address, and transmits a second address assignment message including the determined address to the second neighboring battery management apparatus through a second IR communicator.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: May 4, 2021
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Khomych Serhiy, Petrakivskyi Oleg, Baiev Oleksandr, Vitiuk Alina
  • Patent number: 10998971
    Abstract: A method by a coordination node is disclosed for controlling communications between visible Light Communication, VLC, Access Points, AP, and User Equipments, UEs. The method includes identifying occurrence of an event relating to operation of a first VLC AP. The method further includes determining that a second VLC AP and a third VLC AP each have communication coverage areas that are at least partially within a communication coverage area of the first VLC AP, responsive to identification of occurrence of the event. The method then controls the second and the third VLC APs responsive to the determination to avoid their interfering with communications between the first VLC AP and any UEs within common communication coverage areas of the second or the third VLC APs. Related coordination nodes are disclosed.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 4, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Nicolas Seyvet, Hongxin Liang, Keven Wang
  • Patent number: 10984302
    Abstract: Provided are an electronic shelf label, an electronic shelf label system, and an electronic shelf label method. The electronic shelf label includes a power supply unit configured to provide driving power to one or more terminals, a communication interface configured to provide a display signal to the one or more terminals, a terminal selection unit configured to select a terminal to be controlled among the one or more terminals, and a controller configured to control the terminal selection unit so as to select the terminal to be controlled and generate the display signal.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 20, 2021
    Assignee: ATEC AP CO., LTD.
    Inventors: Sin Young Jung, Bong Woo Kang
  • Patent number: 10948709
    Abstract: An electrowetting optical element, having a first electrode layer stack and a second electrode layer stack. Each layer stack has an electrode for applying a voltage to the electrodes for rearranging polar liquid relative to non-polar liquid. A containment space is formed between the first and second electrode layer stack. One or more cell walls extend between the electrode stacks for defining sides of the containment space forming cells. The electrowetting optical element further includes a retroreflective layer for reflecting incident light back through the element.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 16, 2021
    Assignee: MIORTECH B.V.
    Inventors: Hermanus Feil, Doeke Jolt Oostra
  • Patent number: 10951308
    Abstract: In order to reduce wire connections and achieve a wireless communication environment securing a sufficient communication band, the present invention provides a communication apparatus that includes a wireless communication means for transmitting and receiving a wireless signal, an optical communication means for transmitting and receiving spatial light as communication light, and a control means for performing signal conversion in a process for converting the wireless signal and the communication light and setting a transmission destination of the wireless signal and the communication light.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 16, 2021
    Assignee: NEC CORPORATION
    Inventors: Go Watanabe, Satoshi Kyosuna
  • Patent number: 10942119
    Abstract: A system and method are provided for receiving light that has traveled from an optical source through an atmosphere along a distance. The system includes: a receiver lens system having an aperture and being arranged to receive the light from the optical source; a beam splitter; an imaging lens; an image processing component; a photodetector system; and a refractive index structure parameter component. The photodetector system outputs data associated with averaged scintillation data of the aperture. The image processing component generates a normalized covariance curve based on a first portion of the received light. The refractive index structure parameter component generates a refractive index structure parameter, Cn2, of the atmosphere along the distance based on the data associated with averaged scintillation data of the aperture and the normalized covariance curve.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: March 9, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: David T. Wayne, Galen D. Cauble
  • Patent number: 10925141
    Abstract: A lighting device control system includes plural lighting assemblies having RF modules. When the RF module of one of the lighting assemblies is switched on to send an activation signal, the RF module of an other lighting assembly received the activation signal is switched on in order to control plural lighting assemblies the same time.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 16, 2021
    Inventor: Yi-Wen Tang
  • Patent number: 10924183
    Abstract: A reconfigurable free-space optical inter-rack network includes a plurality of server racks, each including at least one switch mounted on a top thereof, where each top-mounted switch includes a plurality of free-space-optic link connector, each with a free-space optical connection to a free-space-optic link connector on another top-mounted switch, a single ceiling mirror above the plurality of server racks that substantially covers the plurality of server racks, wherein the single ceiling mirror redirects optical connections between pairs of free-space-optic link connectors to provide a clear lines-of-sight between each pair of connected free-space-optic link connectors, and a controller that preconfigures a free-space optical network connecting the plurality of server racks by establishing connections between pairs of free-space-optic link connectors, and that reconfigures connections between pairs of free-space-optic link connectors in response to network traffic demands and events.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: February 16, 2021
    Assignee: THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
    Inventors: Himanshu Gupta, Navid Hamedazimi, Samir Ranjan Das, Jon Longtin, Vyas Sekar, Max Curran
  • Patent number: 10916020
    Abstract: The present disclosure provides a method and device for identifying a light source. The method includes as follows. M stripe sets in an image may be detected. A first energy spectrum data corresponding to each of M stripe sets may be obtained. A second energy spectrum data corresponding to each light source in a database may be obtained. The database may include K light sources, and the energy spectrum data corresponds to an identity of the light source. A correlation coefficient between the second energy spectrum data and the first energy spectrum data may be calculated to obtain M*K correlation coefficients. The identity of each stripe set corresponding to the light source in the database may be determined according to the M*K correlation coefficients. With this disclosure, the tracking of the light source emitted by a controller can be achieved.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: February 9, 2021
    Assignee: GUANGDONG VIRTUAL REALITY TECHNOLOGY CO., LTD.
    Inventors: Yongtao Hu, Jingwen Dai, Jie He
  • Patent number: 10904397
    Abstract: Techniques are described for enabling a service administrator to respond to a detected doorbell press at a property when an authorized user is unavailable to respond. In some implementations, a determination that a doorbell press has been detected at a property is made. Video data collected by a doorbell device of the property is obtained in response to determining that the doorbell press has been detected at the property. Sensor data collected by one or more sensors of a monitoring system located within the property is obtained in response to determining that the doorbell press has been detected at the property. A present security risk for the property is determined based at least on the obtained sensor data and the obtained video data. A communication session between the doorbell device and a server system associated with the monitoring system of the property is established in response to determining the present security risk for the property.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 26, 2021
    Assignee: Alarm.com Incorporated
    Inventor: Daniel Todd Kerzner
  • Patent number: 10887014
    Abstract: An optical transceiver for controlling a steering angle between a receive light beam and a transmit light beam includes an optical beam coupling device. The optical beam coupling device comprises a plurality of optical elements configured to control a steering angle between the receive light beam received by the optical beam coupling device along a first line of sight (LOS) and the transmit light beam that is output from the optical beam coupling device along a second LOS different from the first LOS, wherein both the receive light beam and the transmit light beam pass through the plurality of optical elements. The plurality of optical elements have a set of combinations for different positions of each of the optical elements, wherein each position in the set of combinations induces a different steering angle between the transmit light beam and the receive light beam.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: January 5, 2021
    Assignee: Facebook, Inc.
    Inventors: Kevin Michael Birnbaum, Harvard Keese Harding, Jr., Eric Douglas Miller
  • Patent number: 10812185
    Abstract: The disclosure provides for a system that includes a network controller. The network controller is configured to receive information from nodes of a network, where nodes include one node that is in motion relative to another node. The network controller is also configured to generate a table representing available nodes and possible links in the network based on the information, and determine a topology of the network based on the table. Additionally, the network controller is configured to receive client data information from a client device, and determine flows for the topology based on the client data information. Each flow includes one or more requirements for a routing path through the network. The network controller is configured to generate a network configuration for the topology based on the flows, and send instructions to the nodes of the network for implementing the network configuration and transmitting client data.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: October 20, 2020
    Assignee: Loon LLC
    Inventor: Brian Barritt
  • Patent number: 10761272
    Abstract: Aspects of the present disclosure describe large scale steerable optical switched arrays that may be fabricated on a common substrate including many thousands or more emitters that may be arranged in a curved pattern at the focal plane of a lens thereby allowing the directional control of emitted light and selective reception of reflected light suitable for use in imaging, ranging, and sensing applications including accident avoidance.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 1, 2020
    Assignee: Analog Photonics LLC
    Inventors: Ehsan Hosseini, Michael Watts
  • Patent number: 10742318
    Abstract: An optical wireless communication apparatus includes: a modulator for generating a reference signal including periodically repeating binary zeros and ones, receiving an input of a first binary data signal, and outputting a second binary data signal, wherein the second binary data signal has the same frequency as the reference signal, and has the same phase as the reference signal when the first binary data signal comprises binary zeros and has an opposite phase to the reference signal when the first binary data signal comprises binary ones, or has the same phase as the reference signal when the first binary data signal comprises binary ones and has an opposite phase to the reference signal when the first binary data signal comprises binary zeros, and a transmitter for turning a first light source on or off according to the reference signal, and turning a second light source on or off according to the second binary data signal.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 11, 2020
    Assignee: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Yeong Min Jang, Van Trang Nguyen, Chang Hyun Hong
  • Patent number: 10709967
    Abstract: A method for identifying one or more light sources may include capturing, via an imaging device, an image, the imaging device having a rolling shutter. The method may also include receiving, via at least one processor, the captured image, and detecting, via the at least one processor, whether the image includes a set of alternating stripes. The method may further include measuring, via the at least one processor, if the image includes a set of alternating stripes, a width of at least one stripe of the set of alternating stripes included in the captured image, and identifying, via the at least one processor, a light source causing the set of alternating stripes based on the measured width.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: July 14, 2020
    Assignee: GUANGDONG VIRTUAL REALITY TECHNOLOGY CO., LTD.
    Inventors: Jie He, Jingwen Dai, Tao Zhu, Congling Wan
  • Patent number: 10678071
    Abstract: Systems and methods for smart contact lens data transfer using Light Fidelity (Li-Fi) are disclosed. In embodiments, a computer-implemented method, comprises: pairing a smart contact lens with a remote computing device, the smart contact lens including a data receiving device and a light transmitting device; receiving, by the smart contact lens, data from the remote computing device; and transmitting, by the light transmitting device of the smart contact lens, the data to a receiver device through Li-Fi communication between the light transmitting device of the smart contact lens and the receiving device.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: June 9, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gregory J. Boss, John E. Moore, Jr., Sarbajit K. Rakshit
  • Patent number: 10666357
    Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 26, 2020
    Assignee: Agency for Science, Technology and Research
    Inventors: Ee Jin Teo, Chengyuan Yang, Jinghua Teng
  • Patent number: 10659156
    Abstract: An apparatus and method are described for facilitating communication between a telecommunications network and a user device within a building. The apparatus has a first unit for mounting adjacent an external surface of a building, and a second unit for mounting adjacent an internal surface of the building so as to be separated from the first unit via an interface structure of the building, for example a window. The first unit has an antenna system to communicate with the telecommunications network over an external wireless communications link that employs signals in a frequency range that is attenuated by the interface structure to a degree inhibiting reception of the signals by a user device within the building.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 19, 2020
    Assignee: AIRSPAN NETWORKS INC.
    Inventors: Kenneth Fairweather, Martin Lysejko
  • Patent number: 10638051
    Abstract: A method includes setting an exposure time of an image sensor of a terminal of a customer so that, in an image obtained by capturing a subject, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject. The method also includes obtaining a bright line image including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time, and obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines. The method further includes sending the identification information to a server, obtaining a menu listing a product of the store from the server, displaying the menu on a display of the terminal, and sending product information of the product selected by the customer.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: April 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Ikuo Fuchigami, Tsutomu Mukai, Hidehiko Shin, Yosuke Matsushita, Shigehiro Iida, Kazunori Yamada
  • Patent number: 10531010
    Abstract: An information communication method obtains information from a subject using a terminal device that includes an image sensor. The method includes setting an exposure time of the image sensor having a plurality of exposure lines so that a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject. The method also includes obtaining a bright line image including a plurality of bright lines, and obtaining identification information of the subject. In the obtaining of the bright line image, an exposure time of each of the plurality of exposure lines partially overlaps with an exposure time of an adjacent one of the plurality of exposure lines. During asynchronous communication, a minimum width of the stripe pattern corresponds to at least two bright lines in the obtained bright line image.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Ikuo Fuchigami, Hidehiko Shin, Yosuke Matsushita, Shigehiro Iida, Tsutomu Mukai, Kazunori Yamada
  • Patent number: 10523876
    Abstract: An information communication method obtains information from a subject using a terminal device that includes an image sensor having a plurality of exposure lines. The method includes setting an exposure time of the image sensor so that, in an image obtained by capturing the subject by the image sensor, a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject. The method also includes obtaining a bright line image by capturing the subject that changes in luminance by the image sensor with the set exposure time, and obtaining identification information of the subject. An exposure time of each of the plurality of exposure lines partially overlaps with an exposure time of an adjacent one of the plurality of exposure lines, and the subject includes a first area and a second area.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: December 31, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Ikuo Fuchigami, Hidehiko Shin, Tsutomu Mukai, Yosuke Matsushita, Shigehiro Iida, Kazunori Yamada
  • Patent number: 10523318
    Abstract: Techniques are disclosed by which electronic devices that include line-of-sight optical communication systems may become optically aware of other electronic devices and perform optical communication handshakes with other devices. An electronic device may use a motion sensor to record its posing when it determines, during the performance of an optical communication handshake, that it is pointed at the electronic device with which it is performing the optical communication handshake (or that the other electronic device is within a field of view of the electronic device). A recorded device posing, in combination with optical communications and motion sensor data, may also be used to map another device's location and enable a user of an electronic device to pan away from and break optical communication with the other device, then easily return to a recorded posing that enables a continuation of optical communications with the other device.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 31, 2019
    Assignee: Apple Inc.
    Inventors: Tong Chen, Mark T. Winkler, Wenrui Cai, Mehmet Mutlu, Omid Momtahan, Orit A. Shamir
  • Patent number: 10520607
    Abstract: A beam tracking method and a terminal including the same. The terminal may measure power of a signal received from a base station and determine whether there is a behavior change of the terminal. Further, the terminal may determine whether the signal is blocked using the measured power and the behavior change of the terminal and perform the beam tracking through a secondary beam if it is determined that the signal is blocked.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 31, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Jung-Woo Park
  • Patent number: 10520602
    Abstract: In one embodiment, a laser system includes a seed laser configured to produce optical seed pulses. The laser system also includes a first fiber-optic amplifier configured to amplify the seed pulses by a first amplifier gain to produce a first-amplifier output that includes amplified seed pulses and amplified spontaneous emission (ASE). The laser system further includes a first optical filter configured to remove from the first-amplifier output an amount of the ASE. The laser system also includes a second fiber-optic amplifier configured to receive the amplified seed pulses from the first optical filter and amplify the received pulses by a second amplifier gain to produce output pulses. The output pulses have output-pulse characteristics that include: a pulse repetition frequency of less than or equal to 100 MHz; a pulse duration of less than or equal to 20 nanoseconds; and a duty cycle of less than or equal to 1%.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 31, 2019
    Assignee: Luminar Technologies, Inc.
    Inventors: Alain Villeneuve, Jason M. Eichenholz
  • Patent number: 10491833
    Abstract: A position coordinates setter sets position coordinates being coordinates of an image region of an LED in an image. An image region determiner determines whether or not an image region having a predetermined luminance value is present at the position coordinates. If an image region having the predetermined luminance value is not present at the position coordinates, the image region determiner determines whether or not the image region at the position coordinates is overexposed or underexposed, and the exposure controller continues setting, if the image region is overexposed, the exposure time shorter by one degree at a time until the luminance value of the image region at the position coordinates becomes the predetermined luminance value, and continues setting, if the image region is underexposed, the exposure time longer by one degree at a time until the luminance value of the image region at the position coordinates becomes the predetermined luminance value.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: November 26, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Naotomo Miyamoto
  • Patent number: 10455161
    Abstract: A method includes setting an exposure time of an image sensor included in a terminal device so that a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of each of the plurality of subjects. The method also includes obtaining a bright line image including a plurality of bright lines corresponding to each of the plurality of subjects, and obtaining a plurality of identification information from the plurality of subjects. The method further includes specifying locations of the plurality of subjects, determining directions of arrival of lights from the plurality of subjects, calculating distances between the terminal device and each of the plurality of subjects using each of the directions of the arrival of lights, and calculating a location of the terminal device using the locations of the plurality of the subjects and the distances.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 22, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Ikuo Fuchigami, Hidehiko Shin, Tsutomu Mukai, Yosuke Matsushita, Shigehiro Iida, Kazunori Yamada
  • Patent number: 10454577
    Abstract: It is difficult in a free space optical transmitter to transmit a beacon beam stably at low cost, and that it is impossible to maintain stable tracking; therefore, a free space optical transmitter according to an exemplary aspect of the present invention includes a laser beam transmitting means for transmitting a plurality of laser beams capable of interfering with each other and differing in one of an optical frequency and a time variation in a phase difference; and a wavefront control beam transmitting means for transmitting, to a free space, a plurality of wavefront control beams obtained by making each of the plurality of laser beams have a different wavefront.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 22, 2019
    Assignee: NEC CORPORATION
    Inventors: Seigo Takahashi, Toshiharu Ito, Kohei Hosokawa, Manabu Arikawa, Yoshimasa Ono, Takashi Ishikawa
  • Patent number: 10439858
    Abstract: An apparatus includes a low noise amplifier (LNA) multiplexer configured to receive a plurality of radio frequency (RF) signals at a plurality of input terminals and to combine the plurality of RF signals into a combined RF signal that is output at an output terminal. The LNA multiplexer includes a plurality of input signal paths, and each input signal path is coupleable to a respective input terminal of the plurality of input terminals and is configured to receive a respective RF signal of the plurality of RF signals. The apparatus further includes an LNA demultiplexer configured to receive the combined RF signal at an input port coupled to the output terminal and to distribute the combined RF signal to a plurality of output ports, each output port of the plurality of output ports configured to output the combined RF signal to a respective downconverter of a plurality of downconverters.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Miodrag Tasic, Chiewcharn Narathong, Christian Holenstein, Dongling Pan, Yiwu Tang, Rajagopalan Rangarajan, Lai Kan Leung
  • Patent number: 10432307
    Abstract: Aspects of the present disclosure describe systems, methods, and structures for free-space optical communications using Hermite-Gaussian modes resulting in advantageous performance over prior art systems particularly with respect to lateral misalignment.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 1, 2019
    Assignee: NEC Corporation
    Inventor: Giovanni Milione
  • Patent number: 10419113
    Abstract: An optical communications system comprises a first node comprising a phased array transmitter for generating an optical beam and a receiver, and a second node comprising a phase conjugate mirror for returning the optical beam to be detected by the receiver of the first node. The phased array transmitters allow for electronic steering of the beams in a way that is much faster and with a potentially smaller physical footprint than the mechanical systems. The phase conjugate mirrors return the received beams of photons back over the exact path they were sent from the phased array transmitters, ensuring continuity of communication even in the presence of atmospheric turbulence.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 17, 2019
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Robin Mark Adrian Dawson, Juha Pekka Laine, Steven Spector, Murali Chaparala
  • Patent number: 10411826
    Abstract: The invention relates to an apparatus, system and method for communicating data from a source node unit communicatively coupled with the lighting actuator to a data end node unit wirelessly via light waves. The lighting actuator comprises a network interface to receive a temporary data path definition assigning the lighting actuator as selected data injection unit for embedding data from the source node unit into light waves for emission to 5 the data end node unit and a light channel configuration to be applied, and a configuration module configured to assign a light channel to the data end node unit according to a light channel configuration stored on the lighting actuator, wherein data communication addressed to the data end node unit and received in accordance with the temporary data path definition is forwarded to the data end node unit using the assigned light channel.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 10, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventor: Bjorn Christiaan Wouter Kaag
  • Patent number: 10389478
    Abstract: An electronic device and communication coverage compensation method thereof for use in short range communication. An electronic device includes a housing, a radio communication circuit arranged in the housing and configured to support radio communication with a neighboring electronic device, a processor arranged in the housing and electrically connected to the radio communication circuit, a memory arranged in the housing and electrically connected to the processor, the memory storing instructions that, when executed by the processor, cause the processor to communicate with the neighboring electronic device with the radio communication circuit, change, when detecting an event triggering a change from a first symbol rate to a second symbol rate, from the first symbol rate to the second symbol rate, determine a compensation value based on a coverage range, and adjust a transmit power of the radio communication circuit based on the compensation value.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: August 20, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Junsik Kwon, Daehui Kang, Chunho Park, Yunsik Bae
  • Patent number: 10367502
    Abstract: An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include first circuitry having at least a first emitter and a first detector, second circuitry having at least a dual-purpose component, an isolation material configured to electrically isolate the first circuitry from the second circuitry, and switching circuitry adapted to connect the dual-purpose component to emit a first signal for detection by the first detector in a first configuration, and to receive a second signal from the first emitter in a second configuration.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: July 30, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Richard Lum, Thiam Siew Tay, Yuen Yin Chan
  • Patent number: 10367581
    Abstract: A portable terminal detects a color change region corresponding to a marker in frames, and determines whether the brightness and/or hue change with time in the color change region matches a search rule. Subsequently, when the brightness and/or hue change with time in the color change region matches a search rule, the portable terminal restores information by decoding and determines whether the information is the content of predetermined information corresponding to the search rule determined to match. Furthermore, when the restored information is the content of predetermined information corresponding to the search rule determined to match, the portable terminal displays the information in association with the color change region to provide notice that the corresponding flying object is an appropriate flying object performing optical communication.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: July 30, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Nobuo Iizuka, Masaaki Kikuchi, Keiichi Kaneko
  • Patent number: 10313011
    Abstract: It is difficult in a free space optical receiver to satisfy both of the stable receiving and the highly sensitive receiving; therefore, a free space optical receiver according to an exemplary aspect of the present invention includes a light collecting means for collecting laser light having propagated through a free space transmission path; a multimode light generating means for receiving input of the laser light collected by the light collecting means, exciting multimode light, and outputting multimode propagation light including a plurality of propagation mode light beams with a number smaller than a number of multimode light beams possible to be excited; and a mode separating means for separating the multimode propagation light into the plurality of propagation mode light beams and outputting the plurality of propagation mode light beams.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: June 4, 2019
    Assignee: NEC CORPORATION
    Inventors: Seigo Takahashi, Toshiharu Ito, Akihiro Tanaka, Kohei Hosokawa, Manabu Arikawa
  • Patent number: 10270541
    Abstract: The present disclosure provides optical link management in a marine seismic environment. A first device can transmit, to a second device, a first optical transmission at a first output level. The first optical transmission can include a first packet corresponding to a network protocol. The first device can determine that the second device failed to receive the first packet via the first optical transmission. The first device can transmit, responsive to failure of the first optical transmission, a second optical transmission at a second output level different than the first output level. The second optical transmission can include a second packet corresponding to the network protocol. The first device can identify that the second packet was successfully received by the second link manager agent. The first device can establish, responsive to the identification that the second packet was successfully received, the second output level as a transmission output level for the first device.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: April 23, 2019
    Assignee: Magseis FF LLC
    Inventors: Michael Morris, Thomas O'Brien, Philip Navratil
  • Patent number: 10263700
    Abstract: Panels configured to be connected to a Li-Fi communication network. The panels include a first side and an opposing second side. Components of the Li-Fi network are positioned on the second side. The components include one or more nodes for sending and receiving Li-Fi signals, and one or more light pathways for transmitting and receiving the Li-Fi signals. The panels may be further configured to connect to a support structure to allow for Li-Fi communication with the support structure and/or adjacent panel. The support structure is configured to support the panels and also facilitate the Li-Fi communication.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: April 16, 2019
    Inventor: David Lynn
  • Patent number: 10243669
    Abstract: The present application relates to an optical signal receiving apparatus, including a housing for accommodating a body inside the housing, where the body is provided with an optical receiver for receiving an external optical signal, and an optical-to-electrical conversion device is arranged at a central position of the optical receiver. The optical signal receiving apparatus is further provided with a lamp cup for reflecting the external optical signal to the optical-to-electrical conversion device, a light ring for indicating a light incident region, a pry-proof circuit arranged on the body, a power control circuit, and a keying circuit. The optical signal receiving apparatus of the present application can improve user experience.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 26, 2019
    Assignee: KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Weizi Huang, Xin Zhang, Zhiwei Pan, Weicheng Xu
  • Patent number: 10205530
    Abstract: A pulsed light communication device has a plurality of indicator light emitting diodes emitting diodes emitting at least one of a plurality of wavelengths of colored light to correspond to a designated color assigned to a security level for a network. A continuous uninterrupted modulated pulsed light emitting diode light signal may be generated having a sensitivity threshold detection level exceeding minimal parameters of a photodetector.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: February 12, 2019
    Assignee: Federal Law Enforcement Development Services, Inc.
    Inventors: John C. Pederson, Timothy J. Vogt
  • Patent number: 10205506
    Abstract: A communication apparatus searches for other communication apparatuses each of which can execute, as a proxy of the communication apparatus, at least one of transmission processing and reception processing of a wireless signal during a period of a predetermined length which comes at a predetermined time interval, and selects, from the other communication apparatuses detected by the search, an apparatus for executing the processing as the proxy of the communication apparatus.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: February 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsufumi Mogi, Hitoshi Aoki
  • Patent number: 10181901
    Abstract: Techniques are disclosed for establishing communication between light-based communication (LCom) luminaires within a navigation array of luminaires and mobile computing devices having varying components and processes using an encoding scheme received from passing mobile computing devices. The encoding scheme is a set of rules for encoding and generating a visible-light communication (VLC) signal so that the mobile computing device may recognize VLC signals broadcast by the luminaire. In accordance with some embodiments, the disclosed techniques can be used, for example, to accommodate future computing devices that may incorporate different camera technologies and different processing algorithms to process waveforms in the VLC signals.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 15, 2019
    Assignee: OSRAM SYLVANIA Inc.
    Inventors: Christian Breuer, Anant Aggarwal, Barry Stout
  • Patent number: 10171178
    Abstract: The present invention relates to a laser data transmission system and, more particularly, to a communication system using a plurality of laser beams populated with quantum entangled photons. At least one of the laser beams is moved to form an overlapping pattern with a second laser reference beam to form an interference pattern between the laser beams as they impinge upon a detector array to transmit encoded data and to remotely decode the encoded data simultaneously. The interference patterns are used to encode and simultaneously decode the interference shadows upon impingement of the laser beams on a detector array.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: January 1, 2019
    Inventor: Charles Michael Turner
  • Patent number: 10172192
    Abstract: A light-emitting diode (LED) lamp single live wire intelligent control apparatus includes at least one first LED lamp half-wave driving device, a single live wire control circuit connected in series on a same alternating current (AC) loop, and a control output circuit. Or the LED lamp single live wire intelligent control apparatus includes one second LED lamp half-wave driving device and a single live wire control circuit connected in series on a same AC loop.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: January 1, 2019
    Assignee: SHENZHEN POWER2CONTROL SMART TECH CO., LTD
    Inventors: Hui Li, Long Zhao
  • Patent number: 10158424
    Abstract: Aspects of the present invention disclose a method, computer program product, and system for establishing an optical communication link. The method includes one or more processors controlling an optical detection apparatus to scan an environment to detect at least one marker. The method further includes one or more processors detecting a first marker of the one or more markers, wherein the first marker includes information that indicates a location of a first optical access point. The method further includes one or more processors determining the location of the first optical access point based on an analysis of the first marker. The method further includes one or more processors controlling an optical communication apparatus to align with the determined location of the first optical access point. The method further includes one or more processors establishing an optical communication link between the optical communication apparatus and the first optical access point.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 18, 2018
    Assignee: International Business Machines Corporation
    Inventors: Johannes Bort, Emil O. Gemes, Frank Krick, Thorsten Muehge, Erik Rueger
  • Patent number: 10148351
    Abstract: A system monitors optical performance of an optical link within an optical network. The system includes an optical transmitter having an expanded-spectrum pilot-tone modulator for modulating an expanded-spectrum pilot tone onto a high-speed data signal to generate an expanded-spectrum optical signal and an optical receiver for receiving the expanded-spectrum optical signal and for detecting and decoding the expanded-spectrum pilot tone to enable monitoring of the optical performance of the optical link.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: December 4, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhiping Jiang, Minggang Si, Dajiang Jin, Xiaodong Luo, Jianhong Ke
  • Patent number: 10142019
    Abstract: An End User Device (EUD) and an associated method for selecting Visible light communication Personal Area Network Coordinators (VPANCs) is disclosed. The method includes receiving, by the EUD, a set of customized channel scan parameters and a VPANC selection policy from a current VPANC the EUD is associated with, wherein the set of customized channel scan parameters and the VPANC selection policy are created by the current VPANC; assessing, by the EUD, quality of an active channel currently used by the EUD, wherein the active channel is associated with the current VPANC; and switching, by the EUD, to a new VPANC from a plurality of VPANCs based on the set of customized channel scan parameters and the VPANC selection policy in response to the assessing, wherein the plurality of VPANCs comprise the current VPANC.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: November 27, 2018
    Assignee: WIPRO LIMITED
    Inventors: Saptarshi Chaudhuri, Avijit Manna
  • Patent number: 10135528
    Abstract: A receiver system (100) having at least one receiver (101) for receiving optical communications signals (103b) that encode or transmit information; wherein the receiver system (100) is adapted to produce one or more electrical signals (104) from the received optical signal (103b) and/or from ambient light (103a) such that the receiver system (100) is usable as a source of electrical power and the encoded or transmitted information from the received optical communication signal (103b) is recovered or recoverable from the electrical signal(s) (104). Embodiments of the invention also relate to a communications system (400) that further comprises one or more transmitters (406) and a device having the receiver systems (401), along with associated methods of using and producing. Particular embodiments relate to identification tags (1000) and user devices (300) having a display (301) that at least partially overlaps the receiver(s) (302).
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: November 20, 2018
    Assignee: The University Court of the University of Edinburgh
    Inventors: Dobroslav Tsonev, Harald Haas, Zixiong Wang, Stefan I. Videv, Tom Higgison