SONIC COMMUNICATION SYSTEM WITH SONIC SIGNAL OUTPUT DEVICE, AND PORTABLE TERMINAL DEVICE UTILIZING THE SYSTEM

Japanese Patent JP2015041928

A

PROBLEM TO BE SOLVED: To provide a portable terminal for increasing a transmissible information quantity while maintaining a high-speed property of processing in a system for transferring information relating to a place to the portable terminal via a sonic signal.SOLUTION: A sonic signal output device comprises means for outputting a sonic signal formed from one or more sinusoidal waves of different frequencies. For the sonic signal, a predetermined number of frequencies included in a frequency domain utilizing an upper limit range of audible frequencies correspond to a predetermined number of bits, and a value of each of bits is represented by the presence/absence of output of a sinusoidal wave in a corresponding frequency. Information that should be transferred using the sonic signal is information which can be associated with a place where the sonic wave output device is installed. The information is divided into a plurality of sub information items, and each of the sub information items is represented by at least a part of the predetermined number of bits of the sonic signal. The sonic signal output device includes means for switching a sonic signal to be outputted at a predetermined time interval and outputs the sonic signals representing the sub information items while circulating them in accordance with the order of forming the information.

ENDO TAKAHIRO
NAGAMI KENICHI

JP2013172712A

March 02, 2015

August 22, 2013

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INTEC INC

H04B11/00

JP2013106278A	2013-05-30
JP2011023923A	2011-02-03

Seiji Ono
Hisako Tanaka
Tsuda 理

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