Kabushiki Kaisha Toshiba

Katsuyoshi Suzuki

Shigehito Shimada

Akira Sasaki

Kazuyasu Sakai

According to one embodiment, there is provided a visible-light communications system in which bidirectional visible-light communication is performed between a visible-light communications device and a mobile terminal. The device has one light source. The mobile terminal has a retroflection unit. The mobile terminal further has first and second optical filters. The first optical filter extracts a visible light beam modulated with the data transmitted from the visible-light communications device. The second optical filter extracts a visible light beam that will be used as a retroflection light beam that is not modulated.

System for visible light communication using single light source

Disclosed herein is a visible-light communication system according to one embodiment of the invention. The system comprises two apparatus. One apparatus emits a visible light beam on which is superimposed transmission data. From the void data represented by the visible light beam, the other apparatus generates a retroflected light beam, superimposes transmission data on the retroflected light beam, and applies the retroflected light beam to the apparatus. On receiving the retroflected light beam, the apparatus identifies the transmission data coming from the other apparatus, on the basis of the identification data superimposed on the retroflected light beam.

Method and apparatus for visible light communication using single light source

In a visible light communication system, a transmission device includes a data modulation section which assigns 1-bit information to each of visible lights of RGB, and modulates transmission data into 3-bit modulation data. An LED light emission section transmits a multiplexed visible light signal, in which the RGB visible lights are multiplexed in accordance with the modulation data.

Visible light communication system and method therefor

An audio signal processing apparatus for processing an audio signal. The apparatus includes an audio signal input circuit into which the audio signals are input, an analyzer which analyzes the input audio signal and generates an output control signal, a sound effect processor which performs a prescribed sound effect processing on the input audio signal and outputs a resulting audio signal, a control circuit which controls the sound effect processor to optimize the sound effect processing in response to the control signal from the analyzer, and an audio signal output circuit for outputting the resulting audio signal.

Growing community of inventors

Soka, Japan

Katsuyoshi Suzuki