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Panasonic has developed a visible light communication technology that can use the smartphone's camera to receive information. Features are communication speeds up to kbps. The subject of the visible light communication technology that used the camera of a smartphone earlier was that the communication speed was slow, and only about ten bits per second. Matsushita will start production of devices that send IDs from light sources in 2015.
The ID transmission device is conceived as a lighting fixture, a digital signage, an interior billboard, and the like. Sending the ID requires using the brightness of the light source (brightness and darkness). Taking a digital sign with a width of 1 m as an example, the ID can be received at a distance of about 5 m.
The smartphone receiving the ID must install a dedicated APP in advance. The image captured by the smartphone camera is read in units of blocks so that information can be read at a speed exceeding the frame rate of the smartphone camera.
In the future, Matsushita will host an experience event for customers with the help of Mitsukoshi Isetan Holding Group and Isetan Shinjuku Main Store. (Reporter: He Jiji, "Nikkei Electronics")
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