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1. (WO2019026412) RF SIGNAL GENERATION DEVICE AND RF SIGNAL GENERATION METHOD
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Pub. No.: WO/2019/026412 International Application No.: PCT/JP2018/021346
Publication Date: 07.02.2019 International Filing Date: 04.06.2018
IPC:
H03F 3/217 (2006.01) ,H04B 1/04 (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
Applicants:
日本電気株式会社 NEC CORPORATION [JP/JP]; 東京都港区芝五丁目7番1号 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP
Inventors:
相馬 達也 SOMA Tatsuya; JP
Agent:
岩壁 冬樹 IWAKABE Fuyuki; JP
塩川 誠人 SHIOKAWA Masato; JP
Priority Data:
2017-15139304.08.2017JP
Title (EN) RF SIGNAL GENERATION DEVICE AND RF SIGNAL GENERATION METHOD
(FR) DISPOSITIF DE GÉNÉRATION DE SIGNAL RF ET PROCÉDÉ DE GÉNÉRATION DE SIGNAL RF
(JA) RF信号生成装置およびRF信号生成方法
Abstract:
(EN) This RF signal generation device is provided with: an RF signal generation unit 102 which performs pulse modulation on a predetermined signal such that the predetermined signal has four or more valued discrete output levels and the lowest level and any other level appear alternately; a code converter 91 which converts an output signal from the RF signal generation unit 102 into an RF signal of a smaller number of levels than the number of levels of the output signal; a driver unit 203 which converts an output signal from the code converter 91 into a two-valued signal with multiple bits, the bit corresponding to the signal level being significant; and a digital amplifier 303 which, on the basis of an output signal from the driver unit 203, outputs voltage corresponding to the output level of the code converter 91.
(FR) La présente invention concerne un dispositif de génération de signal RF qui comprend : une unité de génération de signal RF (102) qui réalise une modulation d'impulsion sur un signal prédéterminé de telle sorte que le signal prédéterminé a des niveaux de sortie discrets à quatre valeurs ou plus et le niveau le plus bas et tout autre niveau apparaissent en alternance ; un convertisseur de code (91) qui convertit un signal de sortie de l'unité de génération de signal RF (102) en un signal RF d'un plus petit nombre de niveaux que le nombre de niveaux du signal de sortie ; une unité de commande (203) qui convertit un signal de sortie provenant du convertisseur de code (91) en un signal à deux valeurs avec de multiples bits, le bit correspondant au niveau de signal étant significatif ; et un amplificateur numérique (303) qui, sur la base d'un signal de sortie provenant de l'unité de commande (203), produit une tension correspondant au niveau de sortie du convertisseur de code (91).
(JA) RF信号生成装置は、所定の信号に、4値以上の離散的な出力レベルを有し最低レベルとその他のレベルとが交互に出現するようにパルス変調を施すRF信号生成部102と、RF信号生成部102の出力信号を、そのレベルの数よりも少ないレベル数のRF信号に変換するコードコンバータ91と、コードコンバータ91の出力信号を、信号レベルに応じたビットが有意である複数ビットの2値信号に変換するドライバ部203と、ドライバ部203の出力信号に基づいて、コードコンバータ91の出力レベルに応じた電圧を出力するデジタル増幅器303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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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)