Title:
【発明の名称】音響通信システム
Document Type and Number:
Japanese Patent JP2003506918
Kind Code:
A
Abstract:
A toy system is described in which a data signal is encoded using spread spectrum technology to form a spread signal which is combined with an audio track to form a modified audio track. The modified audio track is then transmitted as an acoustic signal to a toy having an electro-acoustic transducer for converting the acoustic signal into an electrical signal which is then despread in order to regenerate the data signal, and the toy responds to the data signal. By using spread spectrum technology to spread the data signal over a wide frequency range, the spread signal in the modified audio track can be made virtually inaudible to a listener. The techniques described have relevance to acoustic communication systems other than toy systems.
Inventors:
David Bartlett
Scott Homel
Michael reynolds
David Alexander Butler
Peter John Kelly
Scott Homel
Michael reynolds
David Alexander Butler
Peter John Kelly
Application Number:
JP2001513842A
Publication Date:
February 18, 2003
Filing Date:
July 31, 2000
Export Citation:
Assignee:
Scientific Generics Limited
International Classes:
A63H30/02; A63H30/04; A63H33/30; G10L19/018; H04B1/707; H04B11/00; H04J13/10; A63H5/00; (IPC1-7): H04B11/00; A63H5/00; A63H30/02; A63H30/04; A63H33/30; H04B1/707
Attorney, Agent or Firm:
Furuya Eiko (4 outside)