Title:
ACOUSTIC SIGNAL PROCESSING DEVICE AND PROGRAM
Document Type and Number:
Japanese Patent JP2015185950
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To perform acoustic communication with a particular device within a range where an acoustic signal reaches using the acoustic signal.SOLUTION: Acoustic signal generation means 101 generates an acoustic signal in which information is superposed on a particular frequency component. Storage means 102 stores data associating a ratio between before and after frequency shift of the acoustic signal with data representing moving speed as data on a frequency at which the acoustic signal is shifted. When the acoustic signal generation means 101 generates an acoustic signal, shifting means 103 shifts the frequency of the acoustic signal, i.e. the acoustic signal in which information is superposed on the particular frequency component, according to shift frequency data stored in the storage means 102. Output means 104 outputs the supplied acoustic signal, i.e. the acoustic signal whose frequency is shifted by the shifting means 103.
More Like This:
Inventors:
SAKURADA SHINYA
KAWAHARA TAKEHIKO
FUKUI MITSURU
KAWAHARA TAKEHIKO
FUKUI MITSURU
Application Number:
JP2014059134A
Publication Date:
October 22, 2015
Filing Date:
March 20, 2014
Export Citation:
Assignee:
YAMAHA CORP
International Classes:
H04B11/00; B66B3/00
Attorney, Agent or Firm:
Asahi Patent Office