公开(公告)号：US20080030275A1

公开(公告)日：2008-02-07

申请号：US11890628

申请日：2007-08-06

Applicant: Francois Van Zanten

Inventor： Francois Van Zanten

IPC: H03F3/45 ,  H03F3/68

CPC classification number: H03F3/45183 ,  H03F1/086

Abstract: An embodiment of an amplifier circuit comprising a succession of amplification stages having at least a first amplification stage receiving a first signal and a second amplification stage downstream of the first amplification stage; a stage of unity gain capable of receiving the first signal and of providing a second signal corresponding to the low-impedance copy of the first signal; and a third amplification stage having its input connected to the output of the stage of unity gain by a capacitor and having its output connected to the output of the second amplification stage.

Abstract translation: 放大器电路的实施例包括一系列具有至少第一放大级接收第一信号的放大级和第二放大级在第一放大级下游; 能够接收第一信号并提供对应于第一信号的低阻抗拷贝的第二信号的单位增益级; 以及第三放大级，其输入端通过电容器连接到单位增益级的输出，并且其输出端连接到第二放大级的输出端。

公开(公告)号：US07295621B2

公开(公告)日：2007-11-13

申请号：US11190770

申请日：2005-07-27

Applicant: Rami Verbin ,  Ilan Sharfer ,  Osnat Neulender

Inventor： Rami Verbin ,  Ilan Sharfer ,  Osnat Neulender

IPC: H04L27/28

CPC classification number: H04L27/2602

Abstract: A method is provided for initiating communications over a channel between a transmitter and a receiver within a specified spectral range, subject to a mask to be applied at the transmitter so as to attenuate at least one segment of the spectral range. The method includes providing to the receiver a definition of the at least one segment and of a level of attenuation to be applied within the at least one segment during a training interval of the communications. A training signal is transmitted from the transmitter to the receiver while applying to the training signal the level of attenuation within the at least one segment. The receiver compensates for a response of the channel based on the received training signal and on the definition of the at least one segment and of the level of attenuation.

Abstract translation: 提供了一种用于在特定光谱范围内的发射机和接收机之间的信道上发起通信的方法，经受要在发射机处应用的掩码，以便衰减光谱范围的至少一个段。 所述方法包括：在所述通信的训练间隔期间向所述接收机提供所述至少一个段的定义和要在所述至少一个段内应用的衰减水平。 训练信号从发射机发射到接收机，同时向训练信号施加至少一个段内的衰减水平。 接收机根据接收到的训练信号和至少一个段的定义以及衰减水平来补偿信道的响应。

公开(公告)号：US07276966B1

公开(公告)日：2007-10-02

申请号：US10978015

申请日：2004-10-28

Applicant: Andrew Tham ,  Steven R. Norsworthy ,  Jason Rupert Redgrave

Inventor： Andrew Tham ,  Steven R. Norsworthy ,  Jason Rupert Redgrave

IPC: H03G3/20

CPC classification number: H03G3/3042 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/32 ,  H03F1/3211 ,  H03F1/3294 ,  H03F3/45183 ,  H03F2200/102 ,  H03F2203/45568

Abstract: Improved radio frequency (RF) envelope tracking apparatus for use in wireless and wired systems. In one exemplary embodiment, a transmitter upconversion stage receives input digital I and Q values, the output of the upconversion stage being fed to both an envelope tracking circuit and a power amplifier (before or after optional filtering). The envelope tracking circuit controls the operation of a power modulator, which adjusts the power amplifier. The envelope tracking circuit is specifically configured to provide improved linearity and power efficiency. The envelope tracking apparatus and methods of the present invention may be applied to heterodyne/super-heterodyne architectures as well as others.

Abstract translation: 用于无线和有线系统的改进的射频（RF）包络跟踪装置。 在一个示例性实施例中，发射机上变频级接收输入数字I和Q值，上变频级的输出馈送到包络跟踪电路和功率放大器（在可选滤波之前或之后）。 包络跟踪电路控制调节功率放大器的功率调制器的操作。 包络跟踪电路被特别地配置成提供改进的线性度和功率效率。 本发明的信封跟踪装置和方法可以应用于外差/超外差架构以及其他。

公开(公告)号：US20070139229A1

公开(公告)日：2007-06-21

申请号：US11559632

申请日：2006-11-14

Applicant: Friedbert Berens

Inventor： Friedbert Berens

IPC: H03M7/00

CPC classification number: H04L1/005 ,  H03M13/05 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/2767 ,  H03M13/2789 ,  H03M13/299 ,  H03M13/3905 ,  H03M13/6508 ,  H04L1/0055 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071

Abstract: To control a decoding latency, larger blocks are nonequally segmented into smaller ones. The decoding process starts directly after reception of the first small block. The latency is defined by the latency of the last small block decoding. Changing the number of iterations during the turbo-code decoding also permits control of the decoding latency.

Abstract translation: 为了控制解码延迟，较大的块被非均匀地分段成较小的块。 解码处理在接收到第一小块之后直接开始。 延迟由最后一个小块解码的延迟定义。 在turbo码解码期间改变迭代次数还可以控制解码延迟。

公开(公告)号：US20060258314A1

公开(公告)日：2006-11-16

申请号：US11382553

申请日：2006-05-10

Applicant: Andras Pozsgay

Inventor： Andras Pozsgay

IPC: H04B7/00 ,  H04B1/06 ,  H04B1/26

CPC classification number: H03C3/40

Abstract: The method and device include the generation of two output signals (IRF, QRF) in phase quadrature, having a frequency spectrum including a dominant harmonic at a wanted frequency FC. The generation of a periodic basic signal (VP) having a frequency FOSC equal to the product of R and the desired frequency FC is included, R being a non-integer rational number greater than one and equal to a ratio p/q, in which p is an integer multiple of 4 and q an odd integer. Also included is a processing of the basic signal including, for example, at least a preprocessing having a frequency division by p with elimination of the even harmonics and a frequency multiplication by q.

Abstract translation: 该方法和装置包括产生相位正交的两个输出信号（I SUB RF，Q RF），具有包括所需频率F < SUB> C 。 具有等于​​R乘积和期望频率F C C的频率F OSC等于周期性基本信号（V SUB）的周期性的产生是 包括，R是大于1并且等于p / q的非整数有理数，其中p是4的整数倍，q是奇整数。 还包括基本信号的处理，包括例如至少具有除以均匀谐波的p分频的预处理和乘以q的倍频。

公开(公告)号：US07130594B2

公开(公告)日：2006-10-31

申请号：US10754464

申请日：2004-01-09

Applicant: Patrick Cerisier ,  Andréa Panigada

Inventor： Patrick Cerisier ,  Andréa Panigada

IPC: H04B1/04 ,  H01Q11/12

CPC classification number: H03M3/446 ,  H03M3/43 ,  H03M3/45 ,  H03M3/454

Abstract: A power amplification device includes an input for receiving a signal having a desired frequency band. The signal also has a transfer function associated therewith. The power amplification device further includes power amplification circuitry having an order greater than or equal to one, and signal amplifiers connected between the input and the power amplification circuitry. Each signal amplifier has a predetermined gain so that zeros of the transfer function are outside the desired frequency band.

Abstract translation: 功率放大装置包括用于接收具有期望频带的信号的输入端。 该信号还具有与其相关联的传递函数。 功率放大装置还包括具有大于或等于1的量级的功率放大电路，以及连接在输入和功率放大电路之间的信号放大器。 每个信号放大器具有预定的增益，使得传递函数的零在所期望的频带之外。

公开(公告)号：US07065375B2

公开(公告)日：2006-06-20

申请号：US10254028

申请日：2002-09-24

Applicant: Corinne Bonhomme

Inventor： Corinne Bonhomme

IPC: H04B1/12

CPC classification number: G01S11/06

Abstract: A process for estimating a speed of movement of a mobile terminal operating in a wireless communication system and communicating with a base station via a transmission channel includes estimating fading of the transmission channel, and performing an autocorrelation on the fading for providing a first autocorrelation result. Reference autocorrelation results are calculated for predetermined values of speed of movement of the mobile terminal, with the calculating being based upon a known autocorrelation function performed on the fading. The process further includes comparing the first autocorrelation result to the various reference autocorrelation results, and estimating the speed of movement of the mobile terminal based upon the comparison.

公开(公告)号：US07035357B2

公开(公告)日：2006-04-25

申请号：US09876879

申请日：2001-06-07

Applicant: Corinne Bonhomme

Inventor： Corinne Bonhomme

IPC: H03D1/00 ,  H03H7/30

CPC classification number: H04L25/03254

Abstract: A device includes a receiver including an estimation block for estimating the impulse response of the transmission channel and a transformation block. The transformation block may include a preprocessing block for determining a phase minimum transformed impulse response corresponding to a transformed channel based upon the estimated impulse response of the transmission channel, and a filter for filtering the signal received. This makes it possible to retain equality between the autocorrelation of the signal received and the autocorrelation of the filtered signal. Further, the receiver may include an equalizer for applying an equalization processing operation to the filtered signal while taking account of the transformed impulse response.

公开(公告)号：US07023907B1

公开(公告)日：2006-04-04

申请号：US09446357

申请日：1998-06-10

Applicant: Sven-Rune Olofsson ,  Joachim Johansson ,  Mikael Isaksson ,  Hans Ohman ,  Daniel Bengtsson ,  Lennart Olsson ,  Anders Isaksson ,  Goran Okvist ,  Lis-Mari Ljunggren ,  Hans Lungberg ,  Tomas Stefansson ,  Gunnar Bahlenberg ,  Siwert Hakansson ,  Magnus Johansson

Inventor： Sven-Rune Olofsson ,  Joachim Johansson ,  Mikael Isaksson ,  Hans Ohman ,  Daniel Bengtsson ,  Lennart Olsson ,  Anders Isaksson ,  Goran Okvist ,  Lis-Mari Ljunggren ,  Hans Lungberg ,  Tomas Stefansson ,  Gunnar Bahlenberg ,  Siwert Hakansson ,  Magnus Johansson

IPC: H04B1/38

CPC classification number: H04M11/062

Abstract: A VDSL-modem which is divided into an analog part which is placed in an optical node and a digital part which is placed in a local station. The analog part of the VDSL-modem includes an A/D-converter and D/A-converter, a filter, an amplifier, a hybrid/balun, an adaptive noise attenuator, an optical interface, and possibly an echo canceller. The digital part of the modem includes an FFT/IFFT-processor, a synchronizer, an equalizer, an interleaving unit, an error correction unit, a protocol manager, and an optical interface. The VDSL-modem simplifies synchronization of the modem and reduces power consumption in the optical node. A multiplexor function in the optical node in addition is simpler because it need not manage a protocol.

Abstract translation: VDSL调制解调器，其分为放置在光节点中的模拟部分和放置在本地站中的数字部分。 VDSL调制解调器的模拟部分包括A / D转换器和D / A转换器，滤波器，放大器，混合/平衡 - 不平衡变换器，自适应噪声衰减器，光学接口以及可能的回波消除器。 调制解调器的数字部分包括FFT / IFFT处理器，同步器，均衡器，交错单元，纠错单元，协议管理器和光接口。 VDSL调制解调器简化了调制解调器的同步，并降低了光节点的功耗。 另外，光节点中的复用器功能更简单，因为它不需要管理协议。

公开(公告)号：US20060064627A1

公开(公告)日：2006-03-23

申请号：US11231656

申请日：2005-09-21

Applicant: Friedbert Berens ,  Laurent Chalard

Inventor： Friedbert Berens ,  Laurent Chalard

IPC: H03M13/03

CPC classification number: H04L1/0057 ,  H03M13/118 ,  H03M13/6306 ,  H03M13/6368 ,  H04L1/0041 ,  H04L1/0068

Abstract: The method and device include determining by removing N−N, rows from an original generator matrix (G) defining the LDPC code and having N rows and N−M columns for obtaining a generator sub-matrix (G1) having N−M columns and N1 rows. The method also includes delivering by receiving an input data vector of size N−M and multiplying the input vector with the generator sub-matrix for obtaining the punctured encoded code word.

Abstract translation: 该方法和装置包括通过从定义LDPC码的原始生成矩阵（G）中移除NN来确定，并具有N行和NM列，以获得具有NM的生成子子矩阵（G SUB） 列和N＆lt; 1＆lt; 1＆gt;行。 该方法还包括通过接收大小为N-M的输入数据向量并将输入向量与生成器子矩阵相乘以获得打孔的编码码字来进行发送。