Title:
WIRELESS COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEIVING DEVICE AND INFORMATION PROCESSING DEVICE
Document Type and Number:
Japanese Patent JP2009225423
Kind Code:
A
Abstract:
To achieve downsizing, and reduction in weight and cost of a transmission device and a receiving device.
The wireless communication system 1 is provided with a wireless transmission device 10 and a wireless receiving device 50. The wireless transmission device 10 generates a signal including information and transmits the signal by means of an electromagnetic wave and an ultrasonic wave of a same frequency in parallel. The wireless receiving device 50 extracts the signal from at least one of the electromagnetic wave and the ultrasonic wave transmitted from the transmission device 10, acquires the information included in the extracted signal, and outputs the acquired information.
Inventors:
IRIE MICHIO
Application Number:
JP2008303760A
Publication Date:
October 01, 2009
Filing Date:
November 28, 2008
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H04B11/00; B63C11/26; H04B1/04; H04B1/16
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Kazuhiko Miyasaka
Osamu Suzawa
Kazuhiko Miyasaka
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