Transmitter And Receiver Patents (Class 398/130)
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Patent number: 12255683Abstract: In an aspect, an OWC transmitter transmits, to an OWC receiver, a first DC bias parameter, receives, from the OWC receiver, DC bias feedback based on a measurement associated with an OWC link between the OWC transmitter and the OWC receiver, and transmits an OWC signal with a second DC bias parameter that is based on the DC bias feedback from the OWC receiver. In another aspect, an OWC receiver receives, from an OWC transmitter, a first DC bias parameter, transmits DC bias feedback based on a measurement associated with an OWC link between the OWC transmitter and the OWC receiver, and receives, from the OWC transmitter, an OWC signal having a second DC bias parameter based on the DC bias feedback.Type: GrantFiled: March 9, 2023Date of Patent: March 18, 2025Assignee: QUALCOMM IncorporatedInventors: Morteza Soltani, Yisheng Xue, Jing Sun, Xiaoxia Zhang, Karoly Becze
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Patent number: 12219631Abstract: A wireless communication device may wirelessly control an object, such as a physical device, directly or through interaction with a virtual representation (or placeholder) of the object situated at a predefined physical location. In particular, the wireless communication device may identify an intent gesture performed by a user that indicates intent to control the object. For example, the intent gesture may involve pointing or orienting the wireless communication device toward the object, with or without additional input. Then, the wireless communication device may determine the object associated with the intent gesture using wireless ranging and/or device orientation. Moreover, the wireless communication device may interpret sensor data from one or more sensors associated with the wireless communication device to determine an action gesture corresponding to a command or a command value. The wireless communication device may then transmit the command value to control the object.Type: GrantFiled: August 22, 2022Date of Patent: February 4, 2025Assignee: Apple Inc.Inventors: James H. Foster, Duncan R. Kerr
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Patent number: 12177298Abstract: In one embodiment, a controller identifies access points forming an overhead mesh of access points in an area, each access point comprising one or more directional transmitters each configured to transmit a beam cone in a substantially downward direction towards a floor of the area. The controller determines coverage areas on the floor of the area for the one or more directional transmitters of the access points in the overhead mesh. The controller generates, based on the coverage areas, alternating communication schedules for the access points such that a client device at any given location on the floor of the area is within range of a plurality of receiving access points in the overhead mesh and at least one transmitting access point in the overhead mesh at a certain point in time. The controller sends the communication schedules to the access points.Type: GrantFiled: January 21, 2022Date of Patent: December 24, 2024Assignee: Cisco Technology, Inc.Inventors: Pascal Thubert, Patrick Wetterwald, Alessandro Erta, Domenico Ficara, Amine Choukir
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Patent number: 12047120Abstract: A LiFi system having multiple transceivers (11) and a single multiple-input-multiple-output (MIMO) modem (41) with at least M outputs, wherein the M transmit outputs of the MIMO modem (41) are fed to a linear combiner (42). The linear combiner creates M distinct linear combinations based on the N MIMO transmit branch signals of the MIMO modem and the linear combinations are chosen such that they allow decoding of each of the 5 N MIMO transmit branch signals when N of the M distinct output signals are received.Type: GrantFiled: April 20, 2021Date of Patent: July 23, 2024Assignee: SIGNIFY HOLDING B.V.Inventors: Johan-Paul Marie Gerard Linnartz, Paul Henricus Johannes Maria Van Voorthuisen
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Patent number: 11855705Abstract: 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: GrantFiled: March 17, 2021Date of Patent: December 26, 2023Assignee: Wi-Charge Ltd.Inventors: Ortal Alpert, Yoni Cohen, Ori Refael Mor, Omer Nahmias, Eitan Ronen, Lior Golan
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Patent number: 11659284Abstract: A visible light communication method transmits a signal by visible light communication. The visible light communication method includes modulating the signal into a predetermined blinking pattern, and transmitting the signal by causing visible light to blink according to the predetermined blinking pattern, from a projector disposed in an indoor space surrounded by a wall toward the wall. The visible light communication method also includes projecting video from the projector toward the wall, wherein the visible light is reflected by the wall to prevent the signal from being received in an outside of the indoor space, and the signal is used to transmit data related to the video projected to a plurality of terminals in the indoor space.Type: GrantFiled: September 22, 2022Date of Patent: May 23, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Ikuo Fuchigami, Hidehiko Shin, Tsutomu Mukai, Yosuke Matsushita, Shigehiro Iida, Kazunori Yamada
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Patent number: 11538418Abstract: A display device and a driving method are provided. The display device includes a display panel and a control IC. The display panel includes a plurality of light-emitting elements. The control IC is configured to control the plurality of light-emitting elements to be turned on at a first frequency so as to display display-related data, and control at least two light-emitting elements of the plurality of light-emitting elements to be turned on and off at a second frequency greater than the first frequency so as to transmit visible light data.Type: GrantFiled: October 19, 2018Date of Patent: December 27, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jianguang Yang, Xiuyun Chen, Zongze He, Liang Zhang, Zhenghua Lu, Yuxuan Chen, Shuo Li, Feng Long
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Patent number: 11539435Abstract: Techniques and examples pertaining to single channel line-of-sight (LOS) communication are described. The transmitting end of the LOS communication involves direct modulation of a light emitted from a light emitter. The receiving end of the LOS communication involves receiving a video stream of the light emitter emitting the light, wherein the video stream comprises a plurality of video frames that are continuous in time. The receiving end of the LOS communication also involves converting the video stream to a binary string comprising a plurality of binary bits. Each of the binary bits corresponds to a respective one of the plurality of video frames, and the binary string contains a repeated binary pattern representing a message being conveyed. The receiving end of the LOS communication also involves extracting the binary pattern from the binary string and then decoding the binary pattern to obtain the message.Type: GrantFiled: November 29, 2017Date of Patent: December 27, 2022Assignee: Ford Global Technologies, LLCInventors: Aditya Singh, Weifeng Xiong, James Carthew
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Patent number: 11433253Abstract: In certain embodiments a light therapy system (e.g., phototherapy device), such as for treatment of Alzheimer's disease, depression, dementia, short-term memory, or for improved learning, improved athletic performance or improved cognitive performance, is provided where the light system comprises a blue light source that operates at a frequency in the range from 20 to 50 Hz (preferably around 40 Hz), whereby the system enables retinal ganglion cells of a human to be exposed in order to stimulate brain waves (gamma oscillations in the human's brain).Type: GrantFiled: January 28, 2020Date of Patent: September 6, 2022Assignees: The Regents of the University of California, Danmarks Tekniske UniversitetInventors: Jes Broeng, Paul Michael Petersen, Ngoc Mai Thi Nguyen, Lance Kriegsfeld
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Patent number: 11411657Abstract: The present relates to a quantum communication system for free space quantum key distribution. An emitter and a receiver, the emitter and the receiver are two points distanced by a free space quantum communication channel, the emitter being designed for wirelessly transmitting data to the receiver via said free space optical communication channel. The receiver includes an optical device capable of receiving the data within a predetermined field of view extending from said optical device toward the receiver. The system is characterized in that the emitter further comprises a light protecting device attached on said emitter. The light protecting device is configured to prevent any light coming from the environment beyond the emitter to enter within the field of view of the receiver. The invention further relates to a method for optimizing free space quantum key distribution.Type: GrantFiled: December 4, 2020Date of Patent: August 9, 2022Assignee: ID QUANTIQUE SAInventors: Bruno Huttner, Anett Krammer
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Patent number: 11388347Abstract: Disclosed is a method of capturing an image of a scene using a user device having a rolling shutter camera. The scene is subjected to an illumination by an LED light source. The method includes providing, by the user device, a notification signal to the LED light source, the notification signal being indicative of a capturing or imminent capturing of an image; adjusting, by the LED light source, an operating characteristic of the LED light source, based on the notification signal; and capturing, by the rolling shutter camera, the image of the scene, while the LED light source is operating at the adjusted operating characteristic.Type: GrantFiled: June 3, 2019Date of Patent: July 12, 2022Assignee: eldoLAB Holding B.V.Inventor: Andy Johanna Elisabeth Otten
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Patent number: 11380236Abstract: A sub-pixel arrangement structure, a mask device, and a display device are provided. The sub-pixel arrangement structure includes: a reference sub-pixel array, a plurality of third sub-pixels, and a plurality of fourth sub-pixels. In the reference sub-pixel array, each row of sub-pixels or each column of sub-pixels includes: first sub-pixels and second sub-pixels, both of which are arranged alternately; in either or both of first and second directions of the sub-pixels in the reference sub-pixel array, one of the third sub-pixels is arranged between any two adjacent sub-pixels in the reference sub-pixel array; and one of the fourth sub-pixels is arranged among any four adjacent sub-pixels in the reference sub-pixel array, and a center of the one of the fourth sub-pixels is located between two rows of sub-pixels of the four sub-pixels arranged in two rows and two column.Type: GrantFiled: July 26, 2019Date of Patent: July 5, 2022Assignees: BOE Technology Group Co., LTD., Chengdu BOE Optoelectronics Technology Co., LTD.Inventors: Yuanqi Zhang, Fengli Ji, Peng Xu, Sen Du
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Patent number: 11277633Abstract: The invention pertains to a computer-implemented method for compensating motion for a digital holographic video stream, the method comprising: obtaining (1010) a sequence of frames representing consecutive holographic images of a scenery; obtaining (1020) translation and rotation vectors describing a relative motion of at least one object in said scenery between a pair of frames from among said sequence of frames; and applying (1030) an affine canonical transform to a first frame of said pair of frames so as to obtain a predicted frame, said affine canonical transform representing said translation and rotation vectors. The invention also pertains to a computer program product and to an apparatus for compensating motion for a digital holographic video stream.Type: GrantFiled: February 1, 2019Date of Patent: March 15, 2022Assignee: Vrije Universiteit BrusselInventors: David Blinder, Colas Schretter, Peter Schelkens
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Patent number: 11271645Abstract: The disclosure provides for a communication system that includes one or more sensors and one or more processors. The one or more processors are configured to receive, during a first timeframe, a first indication of an error rate of a communication link, a second indication of an amount of received power at a remote communication system, and one or more measurements related to the state of the communication system. The one or more processors are then configured to estimate a plurality of disturbance values to the communication system according to the one or more measurements and the second indication. Each disturbance value is associated with a set of components of the communication system. The one or more processors are configured to adjust a beam divergence of a beacon beam or a communication beam transmitted from the communication system based on the plurality of disturbance values and the first indication.Type: GrantFiled: December 1, 2020Date of Patent: March 8, 2022Assignee: X Development LLCInventors: Travis Lantz, Paul Csonka, Bruce Moision
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Patent number: 11218219Abstract: A bidirectional optical wireless transmission system which at least includes one or more optical nodes and terminals is proposed. While the optical node is composed of an optical transmitter, a first optical receiver and a beam collimator; a spatial light modulator, a passive retroreflector and a second optical receiver are employed by the optical terminal to receive the modulated and unmodulated incident beams, which were transmitted from the optical node simultaneously. In the optical terminal, the modulated incident beams are received by the second receiver and the unmodulated incident beams are reflected and through the spatial light modulator in order to be modulated by the spatial light modulator. These modulated reflected beams from spatial light modulator are returned to the optical node through the optical path parallel to the incident beams and received by the first optical receiver within the optical node.Type: GrantFiled: September 1, 2020Date of Patent: January 4, 2022Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hsi-Hsir Chou, Wei-Ta Huang
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Patent number: 11197357Abstract: A method of transmitting data serially can be provided by generating a pulse for a current data bit on an electrical conductor coupled to a string of LEDs, where the pulse has a pulse duration that is defined by a time between a rising edge of the current data bit and a falling edge of the current data bit, that is based on a logical value of the current data bit. A random delay time can be introduced between the falling edge of the current data bit and a rising edge of the next data bit and then the rising edge of the next data bit can be generated after expiration of the random delay time.Type: GrantFiled: August 25, 2020Date of Patent: December 7, 2021Inventors: David Steiner, Timothy Wayne Crockett
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Patent number: 11133866Abstract: 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: GrantFiled: February 25, 2015Date of Patent: September 28, 2021Assignee: PharmaSeq, Inc.Inventors: Wlodek Mandecki, Efrain Rodriguez, Robert Patti, Ioannis Kymissis
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Patent number: 11050488Abstract: 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: GrantFiled: October 4, 2019Date of Patent: June 29, 2021Assignee: Star Headlight & Lantern Co., Inc.Inventor: James J. Cronmiller
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Patent number: 10985840Abstract: 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: GrantFiled: July 2, 2018Date of Patent: April 20, 2021Assignees: INTER-UNIVERSTY RESEARCH INSTITUTE CORPORATION RESEARCH ORGANIZATION OF INFORMATION AND SYSTEMS, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Hiromichi Hashizume, Masanori Sugimoto, Takayuki Akiyama, Hayato Kumaki, Shota Shimada
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Patent number: 10958357Abstract: 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: GrantFiled: October 21, 2019Date of Patent: March 23, 2021Assignee: WI-CHARGE LTD.Inventors: Ortal Alpert, Yoni Cohen, Ori Refael Mor, Omer Nahmias, Eitan Ronen, Lior Golan
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Patent number: 10790900Abstract: 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: GrantFiled: December 27, 2018Date of Patent: September 29, 2020Assignee: Intel CorporationInventors: Javier Perez-Ramirez, Spencer Markowitz, Zoran Zivkovic, Nagarajan Muralidharan, Ankitkumar Navik, Rufeng Meng, Richard Roberts
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Patent number: 10728976Abstract: 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: GrantFiled: May 15, 2019Date of Patent: July 28, 2020Assignee: ROBERN, INC.Inventors: James A. DeHope, Donna J. Morgan, Harshil N. Patel, James L. Stanley, Jr.
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Patent number: 10708009Abstract: 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: GrantFiled: February 4, 2020Date of Patent: July 7, 2020Assignee: X Development LLCInventors: Bruce Moision, Edward Keyes, Oliver Bowen, Devin Brinkley, Baris Erkmen
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Patent number: 10694328Abstract: 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: GrantFiled: August 30, 2017Date of Patent: June 23, 2020Assignee: SIGNIFY HOLDING B.V.Inventors: Dirk Valentinus René Engelen, Bartel Marinus Van De Sluis, Frederik Jan De Bruijn
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Patent number: 10694498Abstract: 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: GrantFiled: June 24, 2016Date of Patent: June 23, 2020Assignee: QUALCOMM IncorporatedInventors: Piyush Gupta, Junyi Li, Saurabha Rangrao Tavildar
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Patent number: 10666356Abstract: 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: GrantFiled: October 26, 2018Date of Patent: May 26, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Chen Dong
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Patent number: 10630390Abstract: 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: GrantFiled: November 29, 2018Date of Patent: April 21, 2020Assignee: CANON KABUSHIKI KAISHAInventor: Takeshi Ide
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Patent number: 10627519Abstract: 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: GrantFiled: August 3, 2015Date of Patent: April 21, 2020Assignee: SONY CORPORATIONInventor: Masanori Iwasaki
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Patent number: 10623098Abstract: 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: GrantFiled: December 21, 2018Date of Patent: April 14, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Qiang Li, Tong Jiang, Chen Dong
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Patent number: 10560566Abstract: 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: GrantFiled: October 19, 2018Date of Patent: February 11, 2020Assignee: NEC CORPORATIONInventor: Daisuke Shouji
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Patent number: 10520430Abstract: 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: GrantFiled: June 19, 2015Date of Patent: December 31, 2019Assignee: SONY CORPORATIONInventor: Tomohiro Yamazaki
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Patent number: 10454593Abstract: 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: GrantFiled: February 2, 2016Date of Patent: October 22, 2019Assignee: Wi-Charge Ltd.Inventors: Ortal Alpert, Yoni Cohen, Ori Refael Mor, Omer Nahmias, Eitan Ronen, Lior Golan
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Patent number: 10419975Abstract: 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: GrantFiled: December 7, 2016Date of Patent: September 17, 2019Assignee: SpectraNet, Inc.Inventor: Jeffrey C. Adams
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Patent number: 10404103Abstract: 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: GrantFiled: May 10, 2017Date of Patent: September 3, 2019Assignee: WI-CHARGE LTD.Inventors: Ortal Alpert, Rudiger Paschotta
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Patent number: 10378897Abstract: 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: GrantFiled: June 21, 2013Date of Patent: August 13, 2019Assignee: QUALCOMM IncorporatedInventors: Aleksandar Jovicic, Thomas J. Richardson
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Patent number: 10374723Abstract: 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: GrantFiled: January 26, 2018Date of Patent: August 6, 2019Assignee: Massachusetts Institute of TechnologyInventor: David O. Caplan
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Patent number: 10367585Abstract: 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: GrantFiled: December 14, 2017Date of Patent: July 30, 2019Assignee: LGS Innovations LLCInventor: James Richard Rapka
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Patent number: 10291365Abstract: 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: GrantFiled: December 29, 2016Date of Patent: May 14, 2019Assignee: X Development LLCInventors: Bruce Moision, Edward Keyes, Oliver Bowen, Devin Brinkley, Baris Erkmen
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Patent number: 10252935Abstract: 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: GrantFiled: September 26, 2014Date of Patent: April 9, 2019Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takashi Murata, Fumio Sato
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Patent number: 10225015Abstract: 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: GrantFiled: July 18, 2017Date of Patent: March 5, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Mitsuaki Oshima, Koji Nakanishi, Hideki Aoyama, Shigehiro Iida
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Patent number: 10210447Abstract: 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: GrantFiled: June 2, 2017Date of Patent: February 19, 2019Assignee: Cooper Technologies CompanyInventors: Adikaramge Asiri Jayawardena, Joseph Michael Manahan
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Patent number: 10181241Abstract: 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: GrantFiled: April 4, 2017Date of Patent: January 15, 2019Assignee: QUALCOMM IncorporatedInventors: William Henry Von Novak, Linda Stacey Irish, Joseph Burke
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Patent number: 10122844Abstract: 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: GrantFiled: June 14, 2017Date of Patent: November 6, 2018Inventor: Daisuke Shouji
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Patent number: 9977205Abstract: 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: GrantFiled: September 22, 2016Date of Patent: May 22, 2018Assignee: Apple Inc.Inventors: Alexander W. Williams, Nicholas G. Merz
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Patent number: 9927877Abstract: 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: GrantFiled: June 21, 2013Date of Patent: March 27, 2018Assignee: CAPE EVOLUTION LIMITEDInventors: Christopher David Cox, Benoit Chirouter
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Patent number: 9871387Abstract: 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: GrantFiled: February 25, 2016Date of Patent: January 16, 2018Assignee: Energous CorporationInventors: Douglas Bell, Michael A. Leabman
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Patent number: 9831949Abstract: 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: GrantFiled: May 27, 2016Date of Patent: November 28, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshihiko Matsukawa, Shojirou Kido
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Patent number: 9831950Abstract: 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: GrantFiled: August 30, 2016Date of Patent: November 28, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masaaki Ikehara, Yoshihiko Matsukawa, Masahito Ohnishi
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Patent number: 9825704Abstract: 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: GrantFiled: May 20, 2016Date of Patent: November 21, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shojirou Kido, Yoshihiko Matsukawa
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Patent number: 9810531Abstract: 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: GrantFiled: December 13, 2013Date of Patent: November 7, 2017Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Zhidong Hua, Christoph Steffen Keppler