Title:
COMMUNICATION METHOD BETWEEN TERMINALS WITH PROPERTIES OF SOUND
Document Type and Number:
Japanese Patent JP2002354059
Kind Code:
A
Abstract:
To realize radio communication between near terminals with the properties of sound.
Data is sent as tones by changing it depending upon data sending the composition of the frequency of overtone elements to distinguish it every one attenuation sound in a receiving part to check overtone frequency elements included in received tones to identify data for communication in a PCM(Pulse Code Modulation) wave shape with attenuation consisting of fundamental tone frequency and the SIN curve of the frequency of the overtone elements.
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Inventors:
TSUTAKI KATSUHIKO
Application Number:
JP2001158476A
Publication Date:
December 06, 2002
Filing Date:
May 28, 2001
Export Citation:
Assignee:
CS ENGINEERING KK
International Classes:
H04L27/26; H04B11/00; H04L12/28; (IPC1-7): H04L27/26; H04B11/00; H04L12/28