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Patent Searching and Data


Title:
RECEPTION DEVICE AND RECEPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/064257
Kind Code:
A1
Abstract:
A reception signal, which includes a preamble field and a plurality of spectrum-spread-modulated data parts, is inputted to an input port. A demodulation unit demodulates the reception signal inputted thereto from the input port. The demodulation unit searches the reception signal, which has been inputted thereto from the input port, for the preamble field. When having detected the preamble field, the demodulation unit sequentially demodulates the plurality of data parts. When the demodulation of a data part is found impossible, the demodulation unit ceases the demodulation of the data parts following the data part for which the demodulation is found impossible, and the demodulation unit then reverts to the search for the preamble field. In this way, even when an erroneous detection of the preamble field occurs, the wasted processing time can be shortened.

Inventors:
TANAKA, Nobunari (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2014/075635
Publication Date:
May 07, 2015
Filing Date:
September 26, 2014
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H04B1/707; H04L7/00
Foreign References:
JP2011066530A2011-03-31
JP2009273044A2009-11-19
JP2007267085A2007-10-11
JP2010045597A2010-02-25
JP2007228525A2007-09-06
Other References:
GUSTAW MAZUREK: "Collision-Resistant Transmission Scheme for Active RFID Systems", EUROCON, 2007. THE INTERNATIONAL CONFERENCE ON "COMPUTER AS A TOOL", 9 September 2007 (2007-09-09), pages 2517 - 2520
GUSTAW MAZUREK: "Experimental RFID System with Active Tags, Signals and Electronic Systems, 2008.ICSES '08.", INTERNATIONAL CONFERENCE ON, 14 September 2008 (2008-09-14), pages 507 - 510
Attorney, Agent or Firm:
KITAYAMA, Mikio et al. (OWA PATENT FIRM, Tokyo Office 3rd Floor, Sankyo Building, 2-1-2, Koishikawa, Bunkyo-k, Tokyo 02, 〒1120002, JP)
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