TRANSMITTER, RECEIVER, TRANSMITTING METHOD, AND RECEIVING METHOD

Title:

TRANSMITTER, RECEIVER, TRANSMITTING METHOD, AND RECEIVING METHOD

Document Type and Number:

WIPO Patent Application WO/1999/004524

Kind Code:

A1

Abstract:

Digital communication equipment which is increased in communication capacity and data transmission quantity and improved in such radio communication performances as the fading resistance, interference resistance, etc. Multi-carrier modulation and spread spectrum are coupled with each other so as to obtain their merits by performing the multi-carrier modulation by means of a DMT modulating section (90) and, thereafter, diffusion modulation by means of a diffusion modulating section (14). In addition, the performance of the communication equipment is further improved by using discrete orthogonal wavelet inversion by means of an M-band wavelet inverting section (29) for the multi-carrier modulation.

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Inventors:

MATSUMOTO WATARU (JP)

Application Number:

PCT/JP1998/001710

Publication Date:

January 28, 1999

Filing Date:

April 15, 1998

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
MATSUMOTO WATARU (JP)

International Classes:

H04L27/00; H04L27/26; (IPC1-7): H04J11/00; H04J13/00

Foreign References:

JPH04309028A	1992-10-30
JPH04341027A	1992-11-27
JPH0951328A	1997-02-18

Attorney, Agent or Firm:

Mizoi, Shoji (17-10 Ofuna 2-chom, Kamakura-shi Kanagawa, JP)

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