1
Masao Nakagawa, Toshihiko Komine, Shinichiro Haruyama, Takaaki Ishigure, Yasuhiro Koike, Shogo Kitano, Yasuo Sugawara: Illuminative light communication device. Nakagawa Laboratories, Rader Fishman & Grauer PLLC, September 1, 2009: US07583901 (199 worldwide citation)

The present invention has been developed considering the above-described problems and aims to provide various structures and applications for illuminative light communication. According to the first aspect of the prevent invention, a broadcast system includes an LED light source 115 for lighting, a ...


2
Nakagawa Masao, Komine Toshihiko, Haruyama Shinichiro, Ishigure Takaaki, Koike Yasuhiro, Kitano Shogo, Sugawara Yasuo: Illumination light communication device. Nakagawa Lab, November 14, 2007: EP1855398-A1 (8 worldwide citation)

An illuminative light communication device is described, which comprises a lighting unit that emits light for lighting; a modulator (211) that controls blinking or light intensity of the lighting unit in accordance with data, thereby modulating the emitted light; and a light receiving unit (213) tha ...


3
Nakagawa Masao, Komine Toshihiko, Haruyama Shinchiro, Ishigure Takaaki, Koike Yasuhiro, Kitano Shogo, Sugawara Yasuo: Illumination light communication device. Nakagawa Lab, November 21, 2007: EP1858179-A1 (1 worldwide citation)

An illuminative light communication device is described, which comprises a lighting unit (316) that emits light for lighting; a modulator (311) that controls blinking or light intensity of the lighting unit in accordance with data, thereby modulating the emitted light; a communicating unit (317) tha ...


4
Masao Nakagawa, Toshihiko Komine, Shinichiro Haruyama, Takaaki Ishigure, Yasuhiro Koike, Shogo Kitano, Yasuo Sugawara: Illuminative light communication device. Rader Fishman & Grauer Pllc, March 16, 2006: US20060056855-A1

The present invention has been developed considering the above-described problems and aims to provide various structures and applications for illuminative light communication. According to the first aspect of the prevent invention, a broadcast system includes an LED light source 115 for lighting, a ...


5
Masao Nakagawa, Toshihiko Komine, Shinichiro Haruyama: Illuminative light communication device. Nakagawa Laboratories, Rader Fishman & Grauer Pllc, December 3, 2009: US20090297166-A1

The illuminating end communication device is equipped with an illuminating light source. An electric power fed to the light source is modulated with a modulating unit responding to transmission data, and the modulated light is sent out as illuminating light. The illumination light is received by the ...


6
Masao Nakagawa, Toshihiko Komine, Shinichiro Haruyama: Illuminative light communication device and lighting device. Nakagawa Laboratories, Rader Fishman & Grauer Pllc, December 3, 2009: US20090297167-A1

In the case of performing communication by using illumination light when the illumination is on, switches are turned on, a signal modulated in an optical modulation part in accordance with information is superposed to a power waveform for the illumination with a power distributor and the illuminatio ...