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1. (WO2019065716) RE-QUANTIZATION DEVICE HAVING NOISE SHAPING FUNCTION, SIGNAL COMPRESSION DEVICE HAVING NOISE SHAPING FUNCTION, AND SIGNAL TRANSMISSION DEVICE HAVING NOISE SHAPING FUNCTION
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Pub. No.: WO/2019/065716 International Application No.: PCT/JP2018/035643
Publication Date: 04.04.2019 International Filing Date: 26.09.2018
IPC:
H03M 7/38 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
7
Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
30
Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
36
Conversion to or from differential modulation with several bits, i.e. the difference between successive samples being coded by more than one bit
38
adaptive
Applicants:
国立大学法人名古屋工業大学 NAGOYA INSTITUTE OF TECHNOLOGY [JP/JP]; 愛知県名古屋市昭和区御器所町字木市29番 29, Aza Kiichi, Gokiso-cho, Showa-ku, Nagoya-shi, Aichi 4660061, JP
Inventors:
米谷 昭彦 YONEYA Akihiko; JP
Agent:
及川 周 OIKAWA Shu; JP
小林 淳一 KOBAYASHI Junichi; JP
大槻 真紀子 OTSUKI Makiko; JP
春田 洋孝 HARUTA Hirotaka; JP
Priority Data:
2017-19123729.09.2017JP
2018-09314514.05.2018JP
Title (EN) RE-QUANTIZATION DEVICE HAVING NOISE SHAPING FUNCTION, SIGNAL COMPRESSION DEVICE HAVING NOISE SHAPING FUNCTION, AND SIGNAL TRANSMISSION DEVICE HAVING NOISE SHAPING FUNCTION
(FR) DISPOSITIF DE REQUANTIFICATION À FONCTION DE MISE EN FORME DU BRUIT, DISPOSITIF DE COMPRESSION DE SIGNAL À FONCTION DE MISE EN FORME DU BRUIT, ET DISPOSITIF DE TRANSMISSION DE SIGNAL À FONCTION DE MISE EN FORME DU BRUIT
(JA) ノイズシェーピング機能を有する再量子化装置およびノイズシェーピング機能を有する信号圧縮装置およびノイズシェーピング機能を有する信号送信装置
Abstract:
(EN) This re-quantization device including a noise shaping function is provided with: a subtractor which detects re-quantization noise of the re-quantization device; a discrete temporal filter which attaches a frequency weight to the detected re-quantization noise; an adder which adds an additional signal to quantization noise; and an additional signal selector which selects the value of a current time of a series of additional signals for minimizing the magnitude of quantization noise of one or more samples ahead having an evaluated frequency weight.
(FR) La présente invention concerne un dispositif de requantification à fonction de mise en forme du bruit, comprenant : un soustracteur qui détecte le bruit de requantification du dispositif de requantification ; un filtre temporel discret qui attribue une pondération fréquencielle au bruit de requantification détecté ; un sommateur qui ajoute un signal supplémentaire au bruit de quantification ; et un sélecteur de signaux supplémentaires qui sélectionne la valeur d'un temps actuel d'une série de signaux supplémentaires de façon à réduire à un minimum l'amplitude du bruit de quantification d'un ou de plusieurs échantillon(s) anticipé(s) ayant une pondération fréquentielle évaluée.
(JA) 再量子化装置としての再量子化ノイズを検出する減算器と、検出された再量子化ノイズに対して周波数重みを付ける離散時間フィルタと、量子化ノイズに付加信号を加算する加算器と、1サンプル以上先の評価された周波数重みのついた量子化ノイズの大きさを最小化する付加信号の列の現時刻の値を選択する付加信号選出器とを設ける。
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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)