Title:
SIGNAL DEMULTIPLEXING DEVICE, SIGNAL DEMULTIPLEXING METHOD, AND SIGNAL DEMULTIPLEXING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2011/074702
Kind Code:
A1
Abstract:
Provided is a signal demultiplexing system that can minimize losses in demultiplexing performance even if signals unsuited to demultiplexing are inputted. The provided signal demultiplexing device contains: an input signal analysis device that determines whether or not a plurality of input signals are suited to demultiplexing; a data memory means for storing data from frequency-domain input signals which result from transformation of the aforementioned input signals into frequency-domain signals; a selection control means which stores the frequency-domain input signals in the data memory means if the input signal analysis means has determined that the input signals are suited to the generation of a demultiplexing matrix for demultiplexing; and a demultiplexing matrix generation means which generates a demultiplexing matrix using frequency-domain input signals including the most recent and older frequency-domain input signals stored in the data memory means.
Inventors:
HIGA, Kyota (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
比嘉 恭太 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
比嘉 恭太 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 〒1088001, JP)
Application Number:
JP2010/073066
Publication Date:
June 23, 2011
Filing Date:
December 15, 2010
Export Citation:
Assignee:
NEC CORPORATION (7-1Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
HIGA, Kyota (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
HIGA, Kyota (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
International Classes:
G10L21/02
Attorney, Agent or Firm:
ASAI, Toshio (7-1Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
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