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1. (WO2015114702) TRANSMISSION DEVICE AND METHOD FOR CONTROLLING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/114702 International Application No.: PCT/JP2014/005478
Publication Date: 06.08.2015 International Filing Date: 29.10.2014
IPC:
H03F 3/217 (2006.01) ,H04B 1/04 (2006.01) ,H04L 27/36 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20
Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21
with semiconductor devices only
217
Class D power amplifiers; Switching amplifiers
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
02
Transmitters
04
Circuits
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
32
Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18, or H04L27/26213
34
Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
36
Modulator circuits; Transmitter circuits
Applicants: NEC CORPORATION[JP/JP]; 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP
Inventors: TAWA, Noriaki; JP
Agent: IEIRI, Takeshi; JP
Priority Data:
2014-01581630.01.2014JP
Title (EN) TRANSMISSION DEVICE AND METHOD FOR CONTROLLING SAME
(FR) DISPOSITIF D'ÉMISSION ET PROCÉDÉ DE COMMANDE DE CELUI-CI
(JA) 送信装置及びその制御方法
Abstract:
(EN) A transmission device (1) in one embodiment contains the following: pulse-signal generators (102, 103) that convert a carrier wave (CW1) and another carrier wave (CW2) that is 90° out of phase with said carrier wave (CW1) to pulse signals (P1, P2), respectively, and output said pulse signals; delta-sigma modulators (104, 105) that output delta-sigma modulated signals (M1, M2) obtained by subjecting an in-phase component signal (I) and a quadrature component signal (Q) from a baseband signal to delta-sigma modulation synchronized on the respective pulse signals (P1, P2); a multiplier (106) that generates an RF pulse-modulated signal (R1) by multiplying one delta-sigma modulated signal (M1) by the first pulse signal (P1); a multiplier (107) that generates another RF pulse-modulated signal (R2) by multiplying the other delta-sigma modulated signal (M2) by the other pulse signal (P2); a switching-amplifier unit (20) that amplifies the RF pulse-modulated signals (R1, R2); and a combiner (15) that combines the RF pulse-modulated signals (R1, R2) amplified by said switching-amplifier unit (20).
(FR) Un mode de réalisation de l'invention concerne un dispositif d'émission (1) comprenant : des générateurs de signal impulsionnel (102, 103) qui convertissent une onde porteuse (CW1) et une autre onde porteuse (CW2) déphasée de 90° par rapport à ladite onde porteuse (CW1) respectivement en signaux impulsionnels (P1, P2) et délivrent lesdits signaux impulsionnels; des modulateurs delta-sigma (104, 105) qui délivrent des signaux modulés delta-sigma (M1, M2) obtenus en soumettant un signal à composante en phase (I) et un signal à composante de quadrature (Q) d'un signal en bande de base à une modulation delta-sigma synchronisée sur les signaux impulsionnels (P1, P2) respectifs; un multiplicateur (106) qui génère un signal modulé par impulsions RF (R1) en multipliant un signal modulé delta-sigma (M1) par le premier signal impulsionnel (P1); un multiplicateur (107) qui génère un autre signal modulé par impulsions RF (R2) en multipliant l'autre signal modulé delta-sigma (M2) par l'autre signal impulsionnel (P2); une unité d'amplification à commutation (20) qui amplifie les signaux modulés par impulsions RF (R1, R2); et un combineur (15) qui combine les signaux modulés par impulsions RF (R1, R2) amplifiés par ladite unité d'amplification à commutation (20).
(JA)  一実施の形態によれば、送信装置(1)は、搬送波(CW1)及び搬送波(CW1)と90度位相の異なる搬送波(CW2)をそれぞれパルス信号(P1,P2)に変換して出力するパルス信号生成器(102,103)と、ベースバンド信号の同相成分信号(I)及び直交位相成分信号(Q)をそれぞれパルス信号(P1,P2)に同期してΔΣ変調し、ΔΣ変調信号(M1,M2)として出力するΔΣ変調器(104,105)と、ΔΣ変調信号(M1)と第1パルス信号(P1)とを乗算してRFパルス変調信号(R1)を生成する乗算器(106)と、ΔΣ変調信号(M2)とパルス信号(P2)とを乗算してRFパルス変調信号(R2)を生成する乗算器(107)と、RFパルス変調信号(R1,R2)を増幅するスイッチング増幅部(20)と、スイッチング増幅部(20)により増幅されたRFパルス変調信号(R1,R2)を合成する合成器(15)と、を備える。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)