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Pub. No.:    WO/2011/013716    International Application No.:    PCT/JP2010/062727
Publication Date: 03.02.2011 International Filing Date: 28.07.2010
H04L 25/02 (2006.01), H04B 3/02 (2006.01), H04B 3/50 (2006.01)
Applicants: PANASONIC CORPORATION [JP/JP]; 1006, Oaza Kadoma, Kadoma-shi, Osaka 5718501 (JP) (For All Designated States Except US).
MATSUMOTO, Tadashi [JP/JP]; (JP) (For US Only).
KOISE, Shoji [JP/JP]; (JP) (For US Only)
Inventors: MATSUMOTO, Tadashi; (JP).
KOISE, Shoji; (JP)
Agent: NISHIKAWA, Yoshikiyo; Hokuto Patent Attorneys Office, Umeda Square Bldg. 9F, 12-17, Umeda 1-chome, Kita-ku, Osaka-shi, Osaka 5300001 (JP)
Priority Data:
2009-175854 28.07.2009 JP
(JA) 通信システムおよび通信端末
Abstract: front page image
(EN)A transmitting circuit (14) is so configured as to be connected to a communication line (4), and to transmit primary signals (51), which are composed of current signals, to the communication line (4) by changing the current that flows into the transmitting circuit from a transmission unit (2) via the communication line (4). A receiving circuit (15) is so configured as to receive secondary signals (52), which are formed by converting the primary signals (51) transmitted from the transmitting circuit (14) into voltage signals by means of a current-voltage conversion unit (3) provided between the transmission unit (2) and the communication line (4). Namely, the primary signals (51) composed of the current signals transmitted from the communication terminal (10) are converted, by means of the current-voltage conversion unit (3), into the secondary signals (52) composed of the voltage signals. Thus, communication can be performed even when the impedance of the communication line is reduced, and introduction of communication system is facilitated.
(FR)Un circuit de transmission (14) est configuré de façon à être connecté à une ligne de communication (4) et à transmettre des signaux primaires (51) composés de signaux de courant, à la ligne de communication (4) par modification du courant circulant dans le circuit de transmission à partir d'une unité de transmission (2) par l'intermédiaire de la ligne de communication (4). Un circuit de réception (15) est configuré de façon à recevoir des signaux secondaires (52) formés par conversion des signaux primaires (51) transmis à partir du circuit de transmission (14) en signaux de tension au moyen d'une unité de conversion courant-tension (3) disposée entre l'unité de transmission (2) et la ligne de communication (4), c'est-à-dire que les signaux primaires (51) composés de signaux de courant transmis à partir du terminal de communication (10) sont convertis, au moyen de l'unité de conversion courant-tension (3) en signaux secondaires (52) composés de signaux de tension. On peut réaliser ainsi une communication, même lorsque l'impédance de la ligne de communication est réduite, et on facilite l'introduction d'un système de communication.
(JA) 送信回路14は、通信線4に接続され、伝送ユニット2から通信線4を介して流れ込む電流を変化させることで電流信号からなる一次信号51を通信線4上に送出するように構成される。また、受信回路15は、送信回路14から送出された一次信号51が、伝送ユニット2と通信線4との間に設けた電流電圧変換部3にて電圧信号に変換されてなる二次信号52を受信するように構成される。つまり、通信端末10から送出される電流信号からなる一次信号51は、電流電圧変換部3にて電圧信号からなる二次信号52に変換されることになる。これにより、通信線のインピーダンスが低下しても通信可能となり、通信システムの導入が容易になる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, 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 (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, 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)