A method includes detecting, by a mobile device, a light sequence emitted from a light emitting diode associated with an access point and determining, by the mobile device, an identifier for the access point based on the light sequence. The method also includes reporting, by the mobile device, a geospatial location of the mobile device and the identifier for the access point to an automated frequency coordination (AFC) server to perform AFC for the access point.

Proposed is a signal transmission method for a transmitting end performing visible light communication. The signal transmission method for a transmitting end performing visible light communication comprises: a step of modulating a signal; and a step of applying analog dimming control on the modulated signal and transmitting same. Meanwhile, the analog dimming control may include biasing of the modulated signal, and scaling of the modulated signal.

The embodiments set forth a technique for enabling a computing device to securely communicate with a peripheral computing device. According to some embodiments, the method can include the steps of (1) receiving, at a detection sensor of the computing device, a light signal from the peripheral computing device, wherein the light signal is received at a first frequency that is higher than a second frequency capable of being detected by a camera system of the computing device, (2) extracting information from the light signal, and (3) performing an operation using the information.

An optical communication transmitting device, an optical communication receiving device, a method, and a system are provided. The optical communication transmitting device includes: a light-emitting display screen, a liquid crystal panel, and a control circuit; the liquid crystal panel is located at a light emission side of the light-emitting display screen; the control circuit is configured to generate, according to a presetting encoding rule, a driving voltage that controls liquid crystal molecules of the liquid crystal panel to be twisted, and the presetting encoding rule is related to a target deflection angle, wherein a polarized light beam emitted from the light-emitting display screen passes through the liquid crystal panel driven by the driving voltage, and then is deflected according to the target deflection angle, and then is transmitted to an optical communication receiving device.

Vehicles are equipped with Free-Space-Optics (FSO) transceivers for establishing one or more inter-vehicle communication link. A vehicle, mounted with one or one or more FSO transceiver unit, may enable individual driver to initiate and engage automated communication, exchanging vehicle, road, or driving environment conditions, with another vehicle, forming a vehicle communication network. A group of vehicles may spontaneously, opportunistically, or automatically communicate with each other, forming a vehicle communication network. The FSO transceiver unit enables the determine independently or communicate concomitantly one or more inter-vehicle distance, range, location, speed, velocity, acceleration, using a position locating and range measurement system. Each vehicle can perform unicast, multicast, or broadcast communication using an On-Board Unit containing hardware and software to enable access to the in-vehicle bus systems to collect vehicle information for dissemination in real-time.

Disclosed is a light intensity signal transmitting device based on a high-speed LED array. The light intensity signal transmitting device includes an LED array and a control board card; through a novel arrangement and driving mode, the LED array has a high-speed modulation characteristic and can transmit high-bit light intensity information at the switching speed of single-point LEDs; the control board card performs high-speed display by gating an I/O port of the LED array, and is used as a light intensity signal transmitting end to transmit a light signal. According to the light intensity signal transmitting device, on the premise that the switching rate of the LED array is ensured, multi-bit binary data transmission is realized, and the transmission rate is improved.

An injection locked transmitter for an optical communication network includes a primary seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one secondary laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the primary seed laser source. The laser injected modulator is configured to receive the primary seed laser source input and the input data stream, and output a laser modulated data stream.

A packaged integrated white light source configured for illumination and communication or sensing comprises one or more laser diode devices. An output facet configured on the laser diode device outputs a laser beam of first electromagnetic radiation with a first peak wavelength. The first wavelength from the laser diode provides at least a first carrier channel for a data or sensing signal.

An optical wireless communication (OWC) transmitter comprising a baseband chip comprises: a media access control (MAC) layer configured to receive data from a network; a first physical (PHY) layer associated with a first light source; and a second physical (PHY) layer associated with a second light source; wherein the first PHY layer is configured to receive first data from the MAC layer and provide a first signal to the first light source, so as to drive the first light source to emit first modulated light that comprises or is representative of the first data; and the second PHY layer is configured to receive second data from the MAC layer and provide a second signal to the second light source, so as to drive the second light source to emit second modulated light that comprises or is representative of the second data.

A method of coordinating wireless power transfer and data communication between a transmitter and a receiver comprising recognizing at the receiver that an energy store electrically coupled to the receiver requires an electrical charge, emitting from the receiver a beacon signal to the transmitter, the beacon signal including information about the receiver and a state of charge of the energy store, recognizing at the receiver first and second localization signals from the transmitter, establishing low-power and high-power laser beam connections between the receiver and the transmitter in response to the localization signals, and communicating further information via the low-power beam on a periodic basis while optical power is being transferred via the high-power beam. The low-power beam connection includes further information about the receiver and the state of charge of the energy store. Optical power is transferred from the transmitter to the receiver via the high-power beam.