The University of Edinburgh

Purelifi Limited

Siemens Aktiengesellschaft

Samsung Electronics Co., Ltd.

Ntt Docomo, Inc.

Huawei Technologies Co., Limited

Nokia Corporation

Agilent Technologies, Inc.

Mobiltec

Eads Deutschland Gmbh

Harald Haas

Egon Schulz

Hermann Rohling

Elena Costa

Dirk Galda

Mostafa Afgani

Dobroslav Tsonev

Mohamed Sufyan Islim

Sang-Boh Yun

Harald Burchardt

Stefan I Videv

Yeon-Woo Lee

Stephan Berner

Stephen McLaughlin

Nikola Serafimovski

Zubin Bharucha

Niclas Meier

Sinan Sinanovic

Eung-sun Kim

Wei Pan

Gunther Auer

Tae-In Hyon

Mario Cappitelli

Ian Underwood

Gordon Povey

Stéphane Beauregard

Peter E Omiyi

Steve McLaughlin

Zhe Chen

Marco Di Renzo

Rui Bian

Ardimas Andi Purwita

Zhihong Zeng

Roger James Brook Jellicoe

Rit Abu-Alhiga

Sovan Das

Zixiong Wang

Tom Higgison

Khaled S Hassan

Chang-Wook Ahn

Rami Ismail Taha Abu-Alhiga

Mesleh Raed

Raed Mesleh

Wasiu Popoola

Dobroslav School Of Engineering Tsonev

Zixiong School Of Engineering Wang

Svilen Dimitrov

An optical wireless communication (OWC) interface apparatus comprises: at least one input and/or output configured to transfer data signals from and/or to a bus device; optical interface circuitry configured to transfer optical wireless communication (OWC) signals representative of the data signals between the OWC interface apparatus and a light transmitter and/or receiver apparatus, wherein the light transmitter and/or receiver apparatus is configured to transmit and/or receive the OWC signals as free-space light signals; and interface control circuitry that is configured to establish and/or maintain communication with the bus device in accordance with a bus protocol thereby to enable transfer of the data signals between the OWC interface apparatus and the bus device.

Optical wireless communication apparatus and method

An optical wireless communication (OWC) system comprises:

Optical wireless communication system and method

An optical wireless communications receiver for a portable communications device, the receiver being configured to receive radiation signals on which communication data is encoded, wherein the receiver is comprised in or on or configured for mounting to at least part of a periphery or edge of the device. Advantageously, the optical wireless communications comprises a plurality of, receiver elements distributed along or around the receiver and/or comprises an optical guide configured to receive radiation and convey at least part of the radiation along the optical guide to at least one of the receiver elements.

Receiver and associated mobile communications device

An optical wireless communication (OWC) system comprises: an access point (AP) comprising a plurality of OWC transmitters and a plurality of OWC receivers; a station (STA) comprising at least one retroreflector; and a controller configured to control the OWC AP transmitters and/or OWC AP receivers; wherein the controller is configured to process data representative of at least one OWC signal that is received by at least one of the OWC AP receivers after having been transmitted by at least one of the OWC AP transmitters and reflected by the at least one retroreflector; and the controller is configured to activate and/or deactivate at least one of the OWC AP transmitters and/or OWC AP receivers based on the processing of the data that is representative of the received at least one OWC signal.

Light communication system and method

An optical wireless communication system and method An optical wireless communication (OWC) system comprises: a multiple input multiple output (MIMO) device configured to provide a plurality of signals each representing a respective data stream; conditioning circuitry configured to receive the plurality of signals from the MIMO device and process the plurality of signals to produce at least one conditioned signal representative of the data stream(s) and suitable for transmission using an OWC transmission device; an OWC transmission device comprising at least one transmitter for transmitting light and configured to be responsive to the at least one conditioned signal to transmit light representative of the data stream(s) using the at least one transmitter.

There is a photovoltaic (PV) panelincluding an array of photovoltaic (PV) elements (). Each PV element () is stand alone and can be electronically addressed individually. The PV panel () also includes a number of spectral filters (), in this example, a red filter (), a green filter () and a blue filter () arranged over some of the PV elements () to filter out the red, green and blue spectral components from white (combined red, green and blue) light emitted from a red-green-blue (RGB) transmitter. Data can be transmitted by modulating the spectral components of the RGB transmitter such that the data in each of the spectral components can be recovered from the electrical signal generated by the PV elements ().

Optical wireless communications system

An optical communication access point comprises: an optical communication channel for allowing wireless light communication with a remote device, and a memory for storing content, wherein the content in the memory is accessible by the remote device via the wireless light communication link.

Li-drive

A processing system for a transmission apparatus, and an associated transmission apparatus and method, the processing system being configured to produce or generate a transmission signal representative of an original signal comprising data portions; the data being carried by or comprised in waveforms or streams in the transmission signal; the processing system being configured to generate the respective waveforms or streams by loading the data onto selected data symbols or subcarriers in the frequency domain to form the transmission signal.

Communication scheme for intensity modulated systems

A method and associated access point for processing data for transmission to communication devices, the method comprising determining or receiving channel state information, CSI, relating to a plurality of the communication devices; for each of one or more sub-carriers, determining which communication devices can communicate using the respective subcarrier according to, or based on, the channel state information or data derived therefrom; allocating communication devices to sub-carriers upon which each communication device can communicate; and providing data for at least one or more or each communication device on the sub-carriers to which the respective communication device has been allocated. Preferably, the method uses an adaptive bit loading algorithm to allocate communication devices to sub-carriers.

Multiuser access for optical communications

A transmission system for transmitting data as part of a communications system, the data comprising a plurality of data symbols or elements, the transmission system being configured to divide the data into at least a first data portion and a second data portion, wherein the first data portion is communicated by transmitting signals in selected carrier channels, wherein the transmission system is configured to encode at least one data symbol or element by selecting a relative order of at least one first carrier channel having a first operational state and at least one second carrier channel having a second operational state.

Communication apparatus and method

A transmission apparatus that produces, generates and/or transmits a unipolar signal representative of an original bipolar signal having one or more data frames, wherein each of the one or more frames of the original bipolar signal are converted into and/or transmitted as a plurality of unipolar portions, frames or frame portions of one or more information streams; and the transmission apparatus is configured to concurrently transmit the one or more information streams and at least one other information stream. Preferably, the different information streams are transmitted simultaneously on the same channel/link. Advantageously, one or more of the information streams are optionally arranged such that the interference due to the at least one other information stream on the at least one information stream does not adversely affect the information carried in the at least one information stream. The present invention also includes a corresponding receiver, system device and methods.

Transmission scheme for communications systems

A receiver system () having at least one receiver () for receiving optical communications signals () that encode or transmit information; wherein the receiver system () is adapted to produce one or more electrical signals () from the received optical signal () and/or from ambient light () such that the receiver system () is usable as a source of electrical power and the encoded or transmitted information from the received optical communication signal () is recovered or recoverable from the electrical signal(s) (). Embodiments of the invention also relate to a communications system () that further comprises one or more transmitters () and a device having the receiver systems (), along with associated methods of using and producing. Particular embodiments relate to identification tags () and user devices () having a display () that at least partially overlaps the receiver(s) ().

Receiver for communications systems

A communications system having at least one transmitter and at least one receiver, wherein the transmitters and/or receivers have an angular dependence, such that at least one response of the receivers to a received signal and/or at least one property of the signals transmitted by the transmitters is angularly dependent; the receiver and transmitter and/or the signals transmitted by the transmitters of two or more transmitter-receiver pairs have a distinct associated angular arrangement or relationship, wherein the at least one angularly dependent response of the receivers to the signal and/or the at least one angularly dependent property of the signal is dependent on the angular arrangement or relationship; and the system is configured to use the angularly dependent property and/or response to identify or discriminate the transmitter from which the signal was transmitted and/or at least one communication channel associated therewith.

System and method for communication between transmitters and receivers having an angular dependence

Growing community of inventors

Edinburgh, United Kingdom

Harald Haas