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1. CN1582549 - Compensation for non-linear distortion in a modem receiver

Office
Chine
Numéro de la demande 02821923.6
Date de la demande 30.08.2002
Numéro de publication 1582549
Date de publication 16.02.2005
Numéro de délivrance 100566231
Date de délivrance 02.12.2009
Type de publication C
CIB
H04L 5/16
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
5Dispositions destinées à permettre l'usage multiple de la voie de transmission
14Fonctionnement à double voie utilisant le même type de signal, c. à d. duplex
16Systèmes semi-duplex; Commutation duplex-simplex; Transmission de signaux de rupture
CPC
H04L 27/0004
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
0004using wavelets
H04L 25/03343
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03343Arrangements at the transmitter end
H04L 25/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
14Channel dividing arrangements ; in which a single bit stream is divided between several baseband channels and reassembled at the receiver
Déposants Broadband Physics Inc.
英特泰克公司
Inventeurs Miller William J.
威廉·J·米勒
Mandataires wang yang
永新专利商标代理有限公司
Données relatives à la priorité 09943697 31.08.2001 US
Titre
(EN) Compensation for non-linear distortion in a modem receiver
(ZH) 调制解调器接收机中非线性失真的补偿
Abrégé
(EN)
A method and modem (202) for communicating serial input data over a transmission link are disclosed. Serial input data is partitioned into parallel data elements prior to rotation by an invertible linear mapping. Computationally efficient multi-rate wavelet filter banks are employed in a receiver (204) for analyzing a received signal. Self-interference components are calculated in the receiver (204) per sub-band and tap-weights for the filter banks are derived as a function over the range of self-interference values. A weighted sum is formed and subtracted from the delayed, received signal to eliminate the interference, and is removed from the recovered signal.

(ZH)

披露了用于通过传输链路发送串行输入数据的方法和调制解调器(202)。在通过可逆的线性映射进行旋转之前,串行输入数据划分成并行数据成分。为了分析接收信号,在接收机(204)中使用计算上有效的多速率小波滤波器。在接收机(204)中计算每个子频带的自干扰分量,而且得到作为一套自干扰值的函数的滤波器组的抽头加权。形成加权的总和,并从延时的接收信号中减去以消除该干扰,而且从恢复信号中除去该总和。