Transmitter And Receiver Patents (Class 398/130)
  • Patent number: 11133866
    Abstract: An apparatus and system having an optical integrated circuit (referred to herein as an OMTP) configured for power on during discovery and optically communicating with the OMTP reader for the purpose of extracting data.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: September 28, 2021
    Assignee: PharmaSeq, Inc.
    Inventors: Wlodek Mandecki, Efrain Rodriguez, Robert Patti, Ioannis Kymissis
  • Patent number: 11050488
    Abstract: A system for visible light communication having a portable device with a visible light source operated to emit optical signals as light pulses representative of data, and a warning device having one or more sources providing one or more of visible and/or audible warning signals. The warning device has a controller which detects the data using electrical signals received from a light sensor representative of the light pulses. Responsive to at least a portion of the detected data, the controller operates one or more sources of the warning device. The detected data includes one or more programming options, such as patterns, for operating the one or more sources of the warning device. The portable device may be a smartphone or tablet having a built-in flash providing the visible light source, where programming options are selectable via a user interface along the portable device.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: June 29, 2021
    Assignee: Star Headlight & Lantern Co., Inc.
    Inventor: James J. Cronmiller
  • Patent number: 10985840
    Abstract: An information transmitter apparatus for use in an information transmission system is provided, where the information transmission system includes the information transmitter apparatus and an information receiver apparatus. The information transmitter apparatus transmits a surface-shaped visible light signal using a light source, where the visible light signal is modulated according to a modulated signal modulated using a plurality of respective-order carriers different from each other, and the respective-order carriers has a fundamental frequency and multiple frequencies of a frame output signal of a video camera of rolling shutter system provided in an information receiver apparatus. The information receiver apparatus receives the visible light signal using the video camera.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 20, 2021
    Assignees: INTER-UNIVERSTY RESEARCH INSTITUTE CORPORATION RESEARCH ORGANIZATION OF INFORMATION AND SYSTEMS, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Hiromichi Hashizume, Masanori Sugimoto, Takayuki Akiyama, Hayato Kumaki, Shota Shimada
  • Patent number: 10958357
    Abstract: A receiver for receiving an incident beam of optical power from a remote transmitter over a predefined field of view, comprising an input lens having a high durability coating that can withstand domestic handling and contamination. Such a high durability coating may reflect a non-insignificant part of the light incident thereon. Behind the lens, there is fitted a retroreflector disposed such that it reflects that part of the incident beam traversing the lens, back through the lens to the transmitter. Reflections from the front surface of the lens impinge on one or more transparent beam catchers appropriately located, and equipped with energy conversion devices, such as photovoltaic cells, to convert light from the reflections of the incident beam into electricity. Additional energy conversion devices may be located inward of the lens, to collect and convert reflections from the inner surface of the lens, of light returning from the retroreflector.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: March 23, 2021
    Assignee: WI-CHARGE LTD.
    Inventors: Ortal Alpert, Yoni Cohen, Ori Refael Mor, Omer Nahmias, Eitan Ronen, Lior Golan
  • Patent number: 10790900
    Abstract: This disclosure describes systems, methods, and devices related to frequency offset tracking in optical signals. A device may identify modulated light received from a light source, wherein the modulated light is received at a frame rate, and wherein the modulated light is associated with pixel clusters. The device may determine light samples based on the pixel clusters, the light samples including a first light sample and a second light sample. The device may determine a vector norm between the first light sample and the second light sample using an oversampling factor. The device may determine that the vector norm is below a threshold. The device may determine a start frame delimiter (SFD) based on the vector norm. The device may demodulate the symbol based on the oversampling factor.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 29, 2020
    Assignee: Intel Corporation
    Inventors: Javier Perez-Ramirez, Spencer Markowitz, Zoran Zivkovic, Nagarajan Muralidharan, Ankitkumar Navik, Rufeng Meng, Richard Roberts
  • Patent number: 10728976
    Abstract: A lighting apparatus may include light sources. Each light source may emit a different electromagnetic radiation having a different color temperature when turned ON. The lighting apparatus may include a voltage source providing power to the light sources and a controller. The controller may turn ON and OFF each light source such that each electromagnetic radiation of each light source comprises a series of pulses. The controller may alternate between turning ON each of the light sources with a speed sufficient to cause a perception of mixing the electromagnetic radiations of the light sources, thereby causing an appearance of a perceived light having a perceived color temperature different from the color temperatures of the light sources. To ensure that only one of the light sources is ON at a time, the controller may wait a predetermined time between turning OFF a light source and turning ON a subsequent light source.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: July 28, 2020
    Assignee: ROBERN, INC.
    Inventors: James A. DeHope, Donna J. Morgan, Harshil N. Patel, James L. Stanley, Jr.
  • Patent number: 10708009
    Abstract: Aspects of the disclosure provide techniques for automatic repeat request (ARQ) in a free-space optical communication (FSOC) architecture. These techniques, including block-selective ARQ, adaptive retransmission delay, and random seed scrambling, can be used individually or in combination to combat problems involving frame loss or corruption. These techniques enable the system to rapidly recover by streamlining the retransmission process. For instance, block-selective ARQ acknowledges variable length blocks of frames in the return stream from the receiver to the transmitter. Adaptive retransmission delay allows the retransmission delay to grow in the absence of feedback by the receiver, up to some defined limit. And with random seed sampling, a scrambling sequence is incorporated to aid with frame syncing, which avoids the need for a line code. These aspects of the technology provide a robust communication process, and also reduce overhead costs associated with unnecessary retransmissions.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: July 7, 2020
    Assignee: X Development LLC
    Inventors: Bruce Moision, Edward Keyes, Oliver Bowen, Devin Brinkley, Baris Erkmen
  • Patent number: 10694498
    Abstract: Methods, systems, and devices for wireless communication are described. The methods, systems, and devices may include receiving control information from a serving station, synchronizing with an end device based at least in part on the control information received from the serving station, and receiving an acknowledgement (ACK) from the end device in response to the synchronizing, the ACK indicating the end device is synchronized with the relay device. The methods, systems, and devices may also include receiving a data packet from the end device subsequent to the synchronizing, and transmitting, to the serving station, the data packet received from the end device, the transmitting based at least in part on the control information received from the serving station.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 23, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Piyush Gupta, Junyi Li, Saurabha Rangrao Tavildar
  • Patent number: 10694328
    Abstract: A method (800) of locating a mobile device in a group of mobile devices is disclosed. The method comprises transmitting (802) a request message defining a code, receiving (804) the request message, driving (806) a light source of a light emitting mobile device such that it emits light being coded according to the code, detecting (808), by a light receiving device, the light emitted by the light source, retrieving (810) the code from the light, identifying (812) the light emitting mobile device based on the code, and providing (814) an indicator on the light receiving mobile device, the indicator indicating the location of the light emitting mobile device.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: June 23, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Dirk Valentinus René Engelen, Bartel Marinus Van De Sluis, Frederik Jan De Bruijn
  • Patent number: 10666356
    Abstract: Embodiments of the present application disclose a visible light-based communication method, a related device, and a related system. A first VLC device is configured to send a reporting indication message to a coordinator when a VPAN ID conflict occurs on a VPAN. The reporting indication message includes VPAN ID information detected by the first VLC device. A coordinator device is configured to receive the reporting indication message sent by the first VLC device. A coordinator device is configured to select a new VPAN ID based on the VPAN ID information to resolve the VPAN ID conflict effectively.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 26, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Chen Dong
  • Patent number: 10630390
    Abstract: When performing contactless communication, occurrence of error in data determined on the receiving side due to attenuation of a wireless signal is prevented on both receiving sides by using a simple configuration. Provided is a wireless communication device including: a transmitting unit provided on a first member and a receiving unit provided on a second member and located at a varying relative distance to the transmitting unit, the transmitting unit generates a first electric signal obtained by superimposing a pilot signal on a digital signal to be transmitted and transmits a wireless signal having an intensity in accordance with the first electric signal, the receiving unit generates a second electric signal in accordance with the intensity of the received wireless signal and detects a pilot signal component from the second electric signal, and the second electric signal is amplified in accordance with an attenuation amount of the pilot signal component.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takeshi Ide
  • Patent number: 10627519
    Abstract: An information processing device according to one aspect of the present disclosure is provided with an obtaining unit which obtains a speckle image obtained by imaging an interference state of reflection light of light obtained when irradiating an object with coherent light, a distance measuring unit which measures a distance to the object, a measuring unit which measures a movement amount of the obtained speckle image, and an arithmetic unit which performs an arithmetic operation of relative displacement amounts of surfaces of a plurality of objects on the basis of movement amounts of speckle images corresponding to the plurality of objects at different distances from an object plane on which the speckle image appears and measured distances to the objects. The present disclosure is applicable to an audio detecting system, for example.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: April 21, 2020
    Assignee: SONY CORPORATION
    Inventor: Masanori Iwasaki
  • Patent number: 10623098
    Abstract: The present application relates to the field of communications technologies, and discloses an access method, apparatus, device, and system for visible light communication. The method includes: obtaining neighbor visible light communication personal area network VPAN information, where the neighbor VPAN information includes information about at least one neighbor VPAN of a first VPAN, and information about each neighbor VPAN includes an identity ID and probe information of the neighbor VPAN; sending the neighbor VPAN information to user equipment, where the neighbor VPAN information is used by the user equipment to perform VPAN search and access. In embodiments of the present application, a VPAN sends obtained neighbor VPAN information to user equipment, so that the user equipment can perform VPAN search and access based on probe information of a neighbor VPAN in the neighbor VPAN information.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 14, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qiang Li, Tong Jiang, Chen Dong
  • Patent number: 10560566
    Abstract: Disclosed is an information communication terminal having a configuration in which it is possible to prevent a wrong operation of the information communication terminal due to an unconscious operation of an input equipment during operating an audio output equipment. That is, the information communication terminal includes a controller. The controller operates a detection sensor that detects an object approaching during operating the audio output equipment. And the controller controls a status of being input into the input equipment based on a detected result of the detection sensor.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 11, 2020
    Assignee: NEC CORPORATION
    Inventor: Daisuke Shouji
  • Patent number: 10520430
    Abstract: A speckle pattern is effectively utilized. An information processing apparatus is an information processing apparatus including a light output unit and an acquisition unit. The light output unit included in the information processing apparatus is for outputting a plurality of light beams for generating a speckle pattern, to a plurality of locations of objects which are within an imaging range. Also, the acquisition unit included in the information processing apparatus is for acquiring the speckle patterns formed by scattering of the plurality of light beams striking the plurality of locations on a location-by-location basis.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: December 31, 2019
    Assignee: SONY CORPORATION
    Inventor: Tomohiro Yamazaki
  • Patent number: 10454593
    Abstract: A receiver for receiving an incident beam of optical power from a remote transmitter over a predefined field of view, comprising an input lens having a high durability coating that can withstand domestic handling and contamination. Such a high durability coating may reflect a non-insignificant part of the light incident thereon. Behind the lens, there is fitted a retroreflector disposed such that it reflects that part of the incident beam traversing the lens, back through the lens to the transmitter. Reflections from the front surface of the lens impinge on one or more transparent beam catchers appropriately located, and equipped with energy conversion devices, such as photovoltaic cells, to convert light from the reflections of the incident beam into electricity. Additional energy conversion devices may be located inward of the lens, to collect and convert reflections from the inner surface of the lens, of light returning from the retroreflector.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 22, 2019
    Assignee: Wi-Charge Ltd.
    Inventors: Ortal Alpert, Yoni Cohen, Ori Refael Mor, Omer Nahmias, Eitan Ronen, Lior Golan
  • Patent number: 10419975
    Abstract: Technology for wireless transmission and reception of messages is disclosed. The disclosed technology includes detection and/or reception of messages in a manner in which the receiver latency for a message is automatically adjusted for each particular message. For example, the receiver latency for each message may be automatically adjusted based on channel conditions, e.g., instantaneous channel conditions, between the transmitter and receiver at the time that message is transmitted/received. For example, the receiver latency for a message may be proportional or otherwise associated with to the signal-to-noise ratio (“SNR”) at the receiver at the time that message is received.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 17, 2019
    Assignee: SpectraNet, Inc.
    Inventor: Jeffrey C. Adams
  • Patent number: 10404103
    Abstract: An optical power beam transmission system, with a directional light transmitter and receiver. The transmitter contains an amplifying laser medium, and this together with a retroreflector in the receiver, forms a laser resonator. When lasing sets in, the receiver can extract optical power through an output coupler and convert it to electrical power. The gain medium may be a disc having a thickness substantially smaller than its lateral dimensions. The laser resonator is operated as a stable resonator to ensure safe operation. This is achieved by use of an adaptive optical element, for reducing the diameter of the energy beam impinging on the gain medium, thereby increasing the overlap between the energy beam and the gain medium. As the transmitter-receiver distance is changed, such as by movement of the receiver, the adaptive optical element focal length changes to ensure that the cavity remains within its stability zone.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 3, 2019
    Assignee: WI-CHARGE LTD.
    Inventors: Ortal Alpert, Rudiger Paschotta
  • Patent number: 10378897
    Abstract: Methods, systems, and devices are described for determining positioning information of a mobile device using modulated light signals. A modulated light signal may be received from each of at least one light source. Each modulated light signal may be decoded to obtain identification information identifying the at least one light source. An angle of arrival of each modulated light signal may also be identified. Each angle of arrival of may be associated with an identified light source.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: August 13, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Jovicic, Thomas J. Richardson
  • Patent number: 10374723
    Abstract: An apparatus for generating a processed optical signal includes a first laser configured to emit a first optical signal in response to a first drive signal. The first optical signal has a first phase shift depending on a first integrated amplitude of the first drive signal. The apparatus also includes a spectral-temporal filter, in optical communication with the first laser, to change a first spectral profile and a first temporal profile of the first optical pulse so as to generate the processed optical signal. Replacing a conventional continuous-wave (CW) laser and external modulation with filter-based modulation can achieve the same or better performance without high-fidelity low-noise input signals.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: August 6, 2019
    Assignee: Massachusetts Institute of Technology
    Inventor: David O. Caplan
  • Patent number: 10367585
    Abstract: Methods for systems are described for communicating an optical data signal. An example method may comprise receiving a data signal comprising a first level indicative of an upper end of a power range of the data signal and a second level indicative of a lower end of the power range of the data signal. The example method may comprise modulating the data signal to generate a modulated data signal. The modulated data signal may comprise the first level modulated with a first beacon tone and the second level modulated with a second beacon tone. The second level may be modulated in phase with the first level. The method may comprise transmitting an optical signal comprising the modulated data signal.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 30, 2019
    Assignee: LGS Innovations LLC
    Inventor: James Richard Rapka
  • Patent number: 10291365
    Abstract: Aspects of the disclosure provide techniques for automatic repeat request (ARQ) in a free-space optical communication (FSOC) architecture. These techniques, including block-selective ARQ, adaptive retransmission delay, and random seed scrambling, can be used individually or in combination to combat problems involving frame loss or corruption. These techniques enable the system to rapidly recover by streamlining the retransmission process. For instance, block-selective ARQ acknowledges variable length blocks of frames in the return stream from the receiver to the transmitter. Adaptive retransmission delay allows the retransmission delay to grow in the absence of feedback by the receiver, up to some defined limit. And with random seed sampling, a scrambling sequence is incorporated to aid with frame syncing, which avoids the need for a line code. These aspects of the technology provide a robust communication process, and also reduce overhead costs associated with unnecessary retransmissions.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 14, 2019
    Assignee: X Development LLC
    Inventors: Bruce Moision, Edward Keyes, Oliver Bowen, Devin Brinkley, Baris Erkmen
  • Patent number: 10252935
    Abstract: Provided is a tempered glass which is suitable for protection of a display or the like and allows transmission of an infrared ray having a wavelength of from 5 ?m to 20 ?m. The tempered glass has a compressive stress layer on its surface and has formed therein a through hole penetrating through the tempered glass so as to pass through the surface.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: April 9, 2019
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Takashi Murata, Fumio Sato
  • Patent number: 10225015
    Abstract: A visible light communication method is provided that includes obtaining a first information, by a receiver, through visible light communication with a light source. The method also includes sending the first information and a second information, by the receiver, to a first server, the second information related to a membership information of a specified organization which is stored in the receiver. The method further includes obtaining, by the receiver, information from the first server using the first information and the second information.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: March 5, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Shigehiro Iida
  • Patent number: 10210447
    Abstract: A system for locating an asset can include a first visible light communication (VLC) device having a first controller, a first transceiver, and a first light source, where the first transceiver has a first range, where the first controller broadcasts, using the first transceiver, a first communication signal, where the first communication signal comprises an identification of the asset. The system can also include an asset communication device associated with the asset, where the asset communication device includes a second transceiver and a second controller, where the second transceiver has a second range, where the asset communication device is within the first range, where the second controller broadcasts, using the second transceiver, a second communication signal in response to the first communication signal, where the second communication signal comprises the identification of the asset.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: February 19, 2019
    Assignee: Cooper Technologies Company
    Inventors: Adikaramge Asiri Jayawardena, Joseph Michael Manahan
  • Patent number: 10181241
    Abstract: Certain aspects of the present disclosure generally relate to modulated warning lights for vehicles. In some aspects, a device may include an emitter to emit a warning light. The warning light may be in a visible spectrum. The device may include a modulator to modulate the warning light to generate a modulated warning light. The modulated warning light may be modulated to a particular pattern selected to convey a message. The message may be used to identify a carrier to which the device is attached such that the carrier is identifiable by a computer vision system that receives the modulated warning light.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: January 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: William Henry Von Novak, Linda Stacey Irish, Joseph Burke
  • Patent number: 10122844
    Abstract: Disclosed is an information communication terminal having a configuration in which it is possible to prevent a wrong operation of the information communication terminal due to an unconscious operation of an input equipment during operating an audio output equipment. That is, the information communication terminal includes a controller. The controller operates a detection sensor that detects an object approaching during operating the audio output equipment. And the controller controls a status of being input into the input equipment based on a detected result of the detection sensor.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 6, 2018
    Inventor: Daisuke Shouji
  • Patent number: 9977205
    Abstract: Embodiments describe an apparatus for magnetic charging and optical data transferring. The apparatus includes an inductive transmitting coil disposed within a housing, an optically transparent window disposed at a surface of the housing and above the inductive transmitting coil, and a first optical data transfer module disposed within the housing below the optically transparent window. The first optical data transfer module may be to perform at least one of emitting optical signals through the optically transparent window or detecting optical signals passing through the optically transparent window.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 22, 2018
    Assignee: Apple Inc.
    Inventors: Alexander W. Williams, Nicholas G. Merz
  • Patent number: 9927877
    Abstract: Methods and systems of manipulating data on an electronic device and a remote terminal are disclosed. The system includes at least one controller in an electronic device and a remote terminal, configured to initialize the electronic device and the remote terminal, detect a first input signal associated with a desired action, capture at least a portion of an external environment, detect a second input signal associated with the desired action, and perform the desired action on the electronic device and the remote terminal according to the first input signal and the second input signal. The system also includes at least one signal detection system in the electronic device and the remote terminal controlled by the at least one controller, at least one imaging and display system in the electronic device and the remote terminal generating an image output data in real-time.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 27, 2018
    Assignee: CAPE EVOLUTION LIMITED
    Inventors: Christopher David Cox, Benoit Chirouter
  • Patent number: 9871387
    Abstract: Embodiments disclosed herein disclose a wireless charging system configured to generate and transmit power waves that, due to physical waveform characteristics converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers, associated with an electronic device being powered by the wireless charging system, can extract energy from these pocket of energy and then convert the extracted energy into usable electric power for the electronic device associated with a receiver. The pocket of energy may manifest as a three-dimensional field (e.g., transmission field) where energy can be harvested by a receiver positioned within or nearby the pocket of energy. Video sensors capture actual video images of fields of view within the transmission field, and a processor identifies selected objects, selected events, and/or selected locations within the captured actual video images.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 16, 2018
    Assignee: Energous Corporation
    Inventors: Douglas Bell, Michael A. Leabman
  • Patent number: 9831950
    Abstract: A visible light communication receiver to be attached to a mobile object includes: a light receiving device which receives a light signal for visible light communication, the light signal including predetermined information; and a lens component disposed over the light receiving device. The lens component has a first directional angle on a first plane and a second directional angle on a second plane orthogonal to the first plane. The first directional angle is narrower than the second directional angle.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: November 28, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masaaki Ikehara, Yoshihiko Matsukawa, Masahito Ohnishi
  • Patent number: 9831949
    Abstract: A modulation device includes a modulator circuit that causes a light source to perform light communication, storage storing an internal ID, and a control circuit that determines whether an external ID is input into the modulation device. When the control circuit determines that the external ID is input into the modulation device, the control circuit causes the input external ID to be input, as a modulation signal, into the modulator circuit. When the control circuit determines that the external ID is not input into the modulation device, the control circuit causes the internal ID stored in the storage to be input, as a modulation signal, into the modulator circuit.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 28, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshihiko Matsukawa, Shojirou Kido
  • Patent number: 9825704
    Abstract: A modulation device includes: a modulation ID signal generator that generates a first ID signal including first identification information; a reception terminal capable of receiving a second ID signal including second identification information; a transmission terminal capable of transmitting the first ID signal and the second ID signal out of the modulation device; a detector that detects a received state in which the second ID signal is received by the reception terminal and an unreceived state in which the second ID signal is not received by the reception terminal; and a switch circuit that outputs the first ID signal to the transmission terminal when the detector detects the unreceived state and outputs the second ID signal to the transmission terminal when the detector detects the received state.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: November 21, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shojirou Kido, Yoshihiko Matsukawa
  • Patent number: 9810531
    Abstract: A system for an installation and a method for operating a system, including stationary transceiver modules and a vehicle having a transceiver module, the individual transceiver module having a controllable light source and a light sensor, so that a data transmission is able to be carried out between the vehicle and the stationary modules.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 7, 2017
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong Hua, Christoph Steffen Keppler
  • Patent number: 9780877
    Abstract: The present application relates to multi-stage amplitude modulation-based methods, apparatuses, and systems for coding and decoding a visible light signal. The coding method includes the following steps: dividing to-be-transmitted information into multiple information units, where each information unit includes multiple bits; converting the multiple information units into multiple electrical signal units indicated by at least three levels, where an interval indicated by a first level in the at least three levels exists between adjacent electrical signal units, and each electrical signal unit uses a combination of other levels in the at least three levels to represent the multiple bits of a corresponding information unit; combining the electrical signal units to obtain a coded electrical signal; and transmitting the coded electrical signal in a visible light signal form.
    Type: Grant
    Filed: January 30, 2016
    Date of Patent: October 3, 2017
    Assignee: KUANG-CHI INNOVATIVE TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Linyong Fan
  • Patent number: 9749045
    Abstract: Disclosed is a visible ray communication system including a transmission apparatus and a reception apparatus, wherein the transmission apparatus includes: a plurality of light emitting devices; an S/P converter for serial-to-parallel converting transmission data, thereby generating N data streams; a modulator for modulating the generated N data streams for respective carriers with a predetermined number of dimensions, thereby generating N modulated signals; a carrier signal multiplier for multiplying the generated N modulated signals by orthogonal N carrier signals, respectively, thereby generating N transmission signals; and a light emitting control unit for illuminating the plurality of light emitting devices according to the generated N transmission signals.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 29, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Atsuya Yokoi
  • Patent number: 9742494
    Abstract: A visible light communication method is provided that includes obtaining a first ID indicating a default interpolation ID previously stored in a receiver. The method also includes obtaining a second ID, by the receiver, through visible light communication with a light source, and generating a third ID, by the receiver, by combining the first ID and the second ID. The method further includes obtaining, by the receiver, information from a server using the third ID, which is a combination of the first ID and the second ID.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: August 22, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Shigehiro Iida
  • Patent number: 9705594
    Abstract: The disclosure relates to a lighting fixture, which includes an array of solid-state light sources that are configured to generate light for general illumination lighting purposes and control circuitry. A drive signal is used to drive solid-state light sources. The control circuitry is configured to use a control output to control the drive signal to at least one of the solid-state light sources. The control output is configured to control the drive signal to 1) set at least one characteristic of the light generated by the array of the solid-state light sources, and 2) modulate the light with data for transmission. The light is modulated such that any change in the at least one characteristic based on the light being modulated is anthropically imperceptible. The characteristic of the light generated by the array of solid-state light sources may include the intensity, color, color temperature and the like.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 11, 2017
    Assignee: Cree, Inc.
    Inventor: Everett Bradford
  • Patent number: 9667345
    Abstract: The present disclosure provides a method, an apparatus, and a system for encoding and decoding a visible light signal. The encoding method includes the following steps: dividing to-be-transmitted data into a plurality of data units, where each data unit includes one or more bits; converting the data units into a plurality of electrical signal units, where for each electrical signal unit, the number of level transitions is used to represent the one or more bits of a corresponding data unit, and an interval indicated by a predetermined level exists between adjacent electrical signal units, where a level in each electrical signal unit has a first level duration, and the predetermined level between adjacent electrical signal units has a second level duration; combining the electrical signal units to obtain an encoded electrical signal; and transmitting the encoded electrical signal in a visible light signal form.
    Type: Grant
    Filed: January 31, 2016
    Date of Patent: May 30, 2017
    Assignee: KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Linyong Fan
  • Patent number: 9296486
    Abstract: The invention provides in-flight refueling systems with a communication sub-system available in radio silence operations including at least a first digital wireless data link comprising a first RF transceiver and a second RF transceiver coupled, respectively, to first and second antennas located in two points inside the boom or the hose of the refueling system or in RF communication with them and connected, respectively, to refueling control units in the tanker aircraft and in the free end of the refueling device by data buses allowing a digital communication between them.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 29, 2016
    Assignee: EADS Construcciones Aeronáuticas S.A.
    Inventor: Luis Fernando Giménez Abad
  • Patent number: 9287977
    Abstract: A visible light communication method includes: obtaining a first ID identifying an area in which a receiver is present; obtaining a second ID by the receiver through visible light communication; and obtaining information corresponding to a third ID which is a combination of the first ID and the second ID. For example, in the obtaining of a first ID, the first ID may be obtained by referring to a table showing correspondence between the first ID and location information obtained by the receiver and indicating a location of the receiver.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: March 15, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Shigehiro Iida
  • Patent number: 9235262
    Abstract: A remote control microdisplay device that uses hand and head movement and voice commands to control the parameters of a field of view for the microdisplay within a larger virtual display area associated with a host application.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: January 12, 2016
    Assignee: Kopin Corporation
    Inventors: Jeffrey J. Jacobsen, Christopher Parkinson, Stephen A. Pombo
  • Patent number: 9175837
    Abstract: A marker system includes a controller with a plurality of emitters electrically interfaced to the controller such that, upon the controller initiating a flow of electric current though one or more of the emitters, the one or more of the emitters emit light. There is also at least one detector electrically interfaced to the controller. The detector(s) are for detecting light in of a specific wavelength and converting the light to an electrical signal that is then received by the controller. Software is stored on a non-transitory storage associated with the controller. The software monitors the at least one detector for an incoming IFF signal and the software initiating the flow of electric current through a selected set of the plurality of emitters responsive to receiving the incoming IFF signal from the at least one detector.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: November 3, 2015
    Assignee: Arcachon Holdings LLC
    Inventors: Gary Leegate, Marcia Baldwin, Jamey Marcus Caldwell
  • Patent number: 9175838
    Abstract: A helmet-mounted or helmet-integrated combination personnel marker/identification light and active “Identification Friend or Foe” (IFF) includes infrared interrogation and response capabilities. The IFF function provides acquisition and processing of an incoming IR laser IFF interrogation and then sends one or more user-defined responses to the interrogator and/or the user/wearer. A photo sensor array is designed to detect and identify incoming infrared signals. The array is arranged to provide omni-directional, line-of-sight sensing over more than a full hemisphere. A detachable user feedback module comprised of a vibratory pad and cable provides a user/wearer alert when infrared interrogation has been detected. An operating status switch allows the user/wearer to confirm that the device is in an active mode.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 3, 2015
    Assignee: Arcachon Holdings LLC
    Inventors: Gary Leegate, Marcia Baldwin
  • Patent number: 9172412
    Abstract: Systems and methods reduce electromagnetic interference from high speed data carried by wired interconnects with a radio receiver for at least one protected radio frequency band. A spectral encoder changes the encoding of the high speed data to modify its frequency spectrum and reduce its spectral in the protected frequency band. The wired interconnect carries the spectrally encoded data to its destination, where it is spectrally decoded back to its original form. Spectral encoding may include polynomial scrambling. The data may be encoded with different coding parameters in parallel and the best result selected for communication over the wired interconnect. The coding parameters may be changed depending on which radio receivers and/or protected frequency bands are in use at any given time.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 27, 2015
    Inventors: Andrew Joo Kim, David Anthony Stelliga
  • Patent number: 9088362
    Abstract: An information communication method is provided that transmits a signal using a change in luminance. The information communication method includes determining a pattern of the change in luminance by modulating the signal to be transmitted, and transmitting the signal by a display, which is a light emitter, changing in luminance according to the determined pattern. Additionally, in the transmitting, a part of the display changes in luminance according to the pattern to display the image, the part emitting light with predetermined brightness or more.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: July 21, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Mitsuaki Oshima, Hideki Aoyama
  • Patent number: 9042734
    Abstract: A laser relay module for free space optical communications including an optical telescope for receiving and transmitting optical beams; an optical diplexer for separating transmitting and received optical beams; an optical amplifier; a modulated beacon laser for line of sight control of a plurality of communicating remote network nodes; a beacon beam detector for detecting an incoming beacon optical beam for line of sight control of the optical telescope and receiving data from other network nodes; and means for inserting an output of the modulated beacon laser into the optical telescope for transmission to another network node, and for transporting the incoming beacon optical beam to the beacon detector.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: May 26, 2015
    Assignee: RAYTHEON COMPANY
    Inventors: Maciej D. Makowski, Gary D. Coleman, William J. Miniscalco, Stephen D. Nordel
  • Patent number: 9037001
    Abstract: Methods and apparatus related to the detection of low-rate visible light communication (VLC) signals and the recovery of information communicated by the VLC signals are described. Various methods and apparatus are well suited for embodiments in which a device, e.g., a smartphone, including a camera which uses a rolling shutter. The rolling shutter facilitates the collection of different time snapshots of a received low rate time varying VLC signal with different pixel rows in the image sensor of a frame corresponding to different time snapshots. In some embodiments, demodulation is used to recover and identify a single tone being communicated in a frame from among a plurality of possible alternative tones that may be communicated, each different tone corresponding to a different set of information bits.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 19, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Jovicic, Thomas Joseph Richardson, Ivan Klimek
  • Patent number: 9025961
    Abstract: A spatial light transmitter of a content supplying system stores ID information of its own and emits spatial light on which the ID information is superimposed from a light emitting portion. A spatial light receiver is used by being connected to a handheld terminal and receives spatial light emitted from the spatial light transmitter. When a user carries the handheld terminal and moves close to the spatial light transmitter, the spatial light receiver receives spatial light emitted from the spatial light transmitter, and ID information obtaining means of the spatial light receiver obtains the ID information which is superimposed on spatial light from a light receiving signal of the light receiving portion, thereby outputting the ID information to the handheld terminal. Alternatively, the ID information obtaining means of the handheld terminal obtains the ID information on the basis of the light receiving signal, and the handheld terminal reproduces the content selected on the basis of the ID information.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 5, 2015
    Assignee: VLC Co., Ltd.
    Inventors: Fumitaka Murayama, Hiroyuki Kurokawa, Hiroki Narusawa
  • Patent number: 9014553
    Abstract: A satellite test signal reflection apparatus for testing transmitters sending out optical signals, the apparatus includes a plate that is at least partially permeable to optical signals. The plate has a base with a first surface with a residual reflective coating and a second surface. The residual reflective coating is configured to split an optical beam, which penetrates the plate in a first direction from the first surface to the second surface, into a reflective optical beam and a transmitted optical beam.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: April 21, 2015
    Assignee: Tesat-Spacecom GmbH & Co. KG
    Inventor: Andreas Weichert