Apparatus and method for visible light communication
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-Seung Song, Tae-Han Bae, Eun-Tae Won, Do-Young Kim
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Abstract
An apparatus for transmitting Visible Light Communication (VLC) data, in which a data processor processes data to be transmitted, a modulator modulates data received from the data processor into a signal for VLC, a light output unit outputs light of a predetermined color and includes in the light a signal of any selected one characteristic among signals of two different characteristics, and a light output controller selects at least one of the signals of different characteristics, and controls the light output unit so that a signal from the modulator is output through the signal of the selected characteristic.
Claims12
An apparatus for transmitting Visible Light Communication (VLC) data, comprising:
- a data processor for processing data to be transmitted;
- a modulator for modulating data received from the data processor into a signal for VLC;
- a light output unit for outputting light of a predetermined color, and including in the light a signal of any selected one characteristic among signals of two different characteristics;
- and
- a light output controller for selecting at least one of the signals of the different characteristics, and controlling the light output unit so that a signal from the modulator is output through the signal of the selected characteristic,
- wherein the data processor includes, in the data to be transmitted, information indicating a characteristic selected by the light output controller.
An apparatus for receiving Visible Light Communication (VLC) data, comprising:
- a light receiving unit for selectively receiving any one of signals of different characteristics;
- a light reception controller for controlling signal selection of the light receiving unit;
- a demodulator for demodulating a signal received from the light reception controller into VLC data;
- and
- a data processor for processing data from the demodulator,
- wherein the data processor detects, from received data, information indicating a characteristic selected by the light reception controller, and provides the detected information to the light reception controller.
A Visible Light Communication (VLC) system, the system comprising:
- an apparatus for transmitting VLC data including a data processor for processing data to be transmitted, a modulator for modulating data received from the data processor into a signal for VLC, a light output unit for outputting light of a predetermined color, and including in the light a signal of any selected one characteristic among signals of two different characteristics, and a light output controller for selecting at least one of the signals of the two different characteristics, and controlling the light output unit so that a signal from the modulator is output through the signal of the selected characteristic, wherein the data processor includes, in the data to be transmitted, information indicating a characteristic selected by the light output controller;
- and
- an apparatus for receiving VLC data including a light receiving unit for selectively receiving the any one of signals of two different characteristics, a light reception controller for controlling signal selection of the light receiving unit, a demodulator for demodulating a signal received from the light reception controller into VLC data, and a data processor for processing the VLC data from the demodulator, wherein the data processor detects, from received data, information indicating a characteristic selected by the light reception controller, and provides the detected information to the light reception controller.
Dependencies are inferred from the claim text.