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1. (WO2007007729) WIRELESS RECEIVER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/007729 International Application No.: PCT/JP2006/313709
Publication Date: 18.01.2007 International Filing Date: 10.07.2006
IPC:
H04J 1/00 (2006.01) ,H04B 1/16 (2006.01) ,H04B 1/7097 (2011.01) ,H04J 1/02 (2006.01) ,H04J 11/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
1
Frequency-division multiplex systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06
Receivers
16
Circuits
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
69
Spread spectrum techniques
707
using direct sequence modulation
7097
Interference-related aspects
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
1
Frequency-division multiplex systems
02
Details
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
11
Orthogonal multiplex systems
Applicants:
松下電器産業株式会社 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP/JP]; 〒5718501 大阪府門真市大字門真1006番地 Osaka 1006, Oaza Kadoma, Kadoma-shi, Osaka 5718501, JP (AllExceptUS)
佐々木 亮 SASAKI, Makoto; null (UsOnly)
榎 貴志 ENOKI, Takashi; null (UsOnly)
Inventors:
佐々木 亮 SASAKI, Makoto; null
榎 貴志 ENOKI, Takashi; null
Agent:
鷲田 公一 WASHIDA, Kimihito; 〒2060034 東京都多摩市鶴牧1丁目24-1新都市センタービル5階 Tokyo 5th Floor, Shintoshicenter Bldg. 24-1, Tsurumaki 1-chome Tama-shi, Tokyo 2060034, JP
Priority Data:
2005-20203011.07.2005JP
Title (EN) WIRELESS RECEIVER
(FR) RÉCEPTEUR SANS FIL
(JA) 無線受信装置
Abstract:
(EN) A wireless receiver having improved receiving characteristics is provided. The wireless receiver (151) is provided with an antenna (152) for receiving wireless signals including a modulation signal and a pilot signal having a frequency different from that of the modulation signal; a distributor (159) for distributing the received signal received by the antenna (152) in two directions; a band pass filter (160) for extracting a signal composition corresponding to the pilot signal, from the one signal distributed by the distributor (159); a delay corrector (162) for delaying the other signal distributed by the distributor (159); a quadrature demodulator (163) for multiplying the signal composition from the band pass filter (160) by the other signal delayed by the delay corrector (162) by frequency and for performing quadrature demodulation; and a synthesizer (165) provided before the quadrature demodulator (163), for synthesizing the signal component from the band pass filter (160) with a local oscillation signal having a frequency equivalent to the signal component.
(FR) La présente invention concerne un récepteur sans fil possédant des caractéristiques de réception améliorées. Le récepteur sans fil (151) est muni d'une antenne (152) destinée à recevoir les signaux sans fil et comprenant un signal de modulation et un signal pilote dont la fréquence diffère de celle d'un signal de modulation ; un distributeur (159) permettant de distribuer le signal reçu par l'antenne (152) dans deux directions ; un filtre passe-bande (160) pour extraire une composition de signal correspondant au signal pilote, à partir de celui distribué par le distributeur (159) ; un correcteur de délai (162) destiné à retarder l'autre signal distribué par le distributeur (159) ; un démodulateur de quadrature (163) pour multiplier la composition du signal à partir du filtre passe-bande (160) par l'autre signal retardé par le correcteur de délai (162) par fréquence et pour réaliser la démodulation de quadrature ; ainsi qu'un synthétiseur (165) fourni avant le démodulateur de quadrature (163), afin de synthétiser le composant du signal à partir du filtre passe-bande (160) avec un signal d'oscillation local ayant une fréquence équivalente au composant du signal.
(JA)  受信特性を向上する無線受信装置。無線受信装置(151)に、変調信号と当該変調信号の周波数と異なる周波数を持つパイロット信号とを含む無線信号を受信するアンテナ(152)と、アンテナ(152)にて受信した受信信号を2方向に分配する分配器(159)と、分配器(159)にて分配された一方の信号から前記パイロット信号に対応する信号成分を抽出するバンドパスフィルタ(160)と、分配器(159)にて分配された他方の信号に遅延を与える遅延補正器(162)と、バンドパスフィルタ(160)からの信号成分と遅延補正器(162)にて遅延が付加された前記他方の信号とを周波数乗算し且つ直交復調を行う直交復調器(163)と、直交復調器(163)の前段に設けられ、バンドパスフィルタ(160)からの信号成分に当該信号成分に相当する周波数を持つ局部発振信号を合成する合成器(165)とを設けた。
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP1895695US20090207945JP4791468