Patent ID: 9025961
Filing Date: 2015-05-05
Classification: H04B

Abstract:
1. A content supplying system which uses spatial light transmission comprising: a spatial light transmitter which is provided with an ID information storage portion for storing ID information of its own and also provided with a light emitting portion for emitting spatial light on which the ID information is superimposed; a handheld terminal which is provided with content storing means for storing content information so as to correspond to the ID information and also provided with content reproducing means for reproducing content read from the content storing means as text, images, video or sounds; and a spatial light receiver which is connected to the handheld terminal and provided with a light receiving portion for receiving spatial light emitted from the light emitting portion of the spatial light transmitter, wherein ID information obtaining means for obtaining the ID information which is transmitted by being superimposed on spatial light from a light receiving signal of the light receiving portion is installed at the spatial light receiver or the handheld terminal, and wherein the handheld terminal is in communication with the spatial light transmitter, and the light receiving portion of the spatial light receiver receives spatial light emitted from the spatial light transmitter, the ID information obtaining means obtains the ID information which is superimposed on spatial light from the light receiving signal of the light receiving portion, and the content reproducing means of the handheld terminal reproduces a content selected on the basis of the ID information, and the spatial light receiver is provided with a light receiving circuit for inputting a light receiving signal of the light receiving portion and an output terminal for outputting the light receiving signal from the light receiving circuit, the output terminal of the spatial light receiver is connected to a microphone input terminal of the handheld terminal, and the ID information obtaining means installed at the handheld terminal inputs the light receiving signal containing ID information through the microphone input terminal, thereby extracting and obtaining the ID information from the light receiving signal.