公开(公告)号：US20020041642A1

公开(公告)日：2002-04-11

申请号：US09876879

申请日：2001-06-07

Applicant: STMicroelectronics N.V.

Inventor： Corrinne Bonhomme

IPC: H03D001/00

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.

Abstract translation: 一种设备包括：接收机，包括用于估计传输信道的脉冲响应的估计块和变换块。 变换块可以包括用于基于传输信道的估计的脉冲响应来确定与变换的信道相对应的相位最小变换的脉冲响应的预处理块，以及用于对接收到的信号进行滤波的滤波器。 这使得可以保持所接收的信号的自相关和滤波信号的自相关之间的相等性。 此外，接收机可以包括均衡器，用于在考虑到转换的脉冲响应的同时对经滤波的信号进行均衡处理操作。

公开(公告)号：US20040218581A1

公开(公告)日：2004-11-04

申请号：US10792032

申请日：2004-03-03

Applicant: STMicroelectronics N.V.

Inventor： Chiara Cattaneo

IPC: H04J003/06

CPC classification number: H04B1/7183 ,  H04L25/0226

Abstract: A method for processing an incident pulsed signal of an ultra wide band type received over a channel by a data device operating in a wireless data communications system is provided. The incident pulsed signal carries information within a super-frame structure. Upon reception of each super-frame structure by a data device, coarse synchronization is performed with another data device acting as a coordinator device for the wireless data communications system. The coarse synchronization uses a first training sequence. Upon reception of each frame allocated to the data device operating within the super-frame structure, channel estimation is performed using a second training sequence. The channel estimation also performs a frame synchronization.

Abstract translation: 提供了一种用于处理由在无线数据通信系统中操作的数据装置在信道上接收的超宽带类型的入射脉冲信号的方法。 入射脉冲信号在超帧结构内承载信息。 在通过数据设备接收每个超帧结构时，与用作无线数据通信系统的协调器装置的另一数据装置执行粗略同步。 粗同步使用第一训练序列。 在接收到分配给在超帧结构内操作的数据设备的每帧时，使用第二训练序列来执行信道估计。 信道估计还执行帧同步。

公开(公告)号：US20040058658A1

公开(公告)日：2004-03-25

申请号：US10621030

申请日：2003-07-16

Applicant: STMicroelectronics N.V.

Inventor： Miguel Kirsch ,  Friedbert Berens

IPC: H04B001/18

CPC classification number: H03J7/02 ,  H04J13/0044

Abstract: A method for controlling frequency of a local oscillator in a DS-CDMA type receiver includes transforming a known spread spectrum signal into a sampled digital signal formed of symbols with a despreaded frequency spectrum, and determining a residual frequency error fe for each symbol including a first residual frequency error fe1. The method further includes correcting the frequency of the local oscillator with the residual frequency errors, and determining an average of absolute values of a predetermined number of successive residual frequency errors. The average is compared with a threshold, and if the average is greater than or equal to the threshold, the local oscillator frequency is corrected using an error equal to nullsgn(fe1) (1/Tnullnullfe1null), where sgn is the sign function, null null is the absolute value function and T is duration of a symbol before determining the next residual frequency error associated with the next symbol.

Abstract translation: 一种用于控制DS-CDMA型接收机中的本地振荡器的频率的方法，包括将已知的扩频信号变换成由具有解扩频谱的符号形成的采样数字信号，以及确定每个符号的残差频率误差fe， 残余频率误差fe1。 该方法还包括用残余频率误差校正本地振荡器的频率，以及确定预定数量的连续残差频率误差的绝对值的平均值。 将平均值与阈值进行比较，如果平均值大于或等于阈值，则使用等于-sgn（fe1）（1 / T- | fe1 |）的误差校正本振振荡器频率，其中sgn为 符号函数，| | 是绝对值函数，T是在确定与下一符号相关联的下一个残余频率误差之前的符号的持续时间。

公开(公告)号：US20030156363A1

公开(公告)日：2003-08-21

申请号：US10338817

申请日：2003-01-08

Applicant: STMICROELECTRONICS N.V.

Inventor： Koen Emiel Jozef Appeltans ,  Lucas Emiel Elie Vander Voorde

IPC: H02H007/00

CPC classification number: H02M7/125

Abstract: A protection device is provided for protecting a switching device that is able to control a current through an inductive load which is subject to a supply voltage, by switching a first and a second terminal of the inductive load to the respective pole of the supply voltage. The switching device is under control of a switching control device. The switching control device operates based on a predetermined algorithm. The switching device also includes flyback body diodes. The protection device includes measuring means for measuring a voltage level on a terminal of the load, and decision means for making a decision on switching the first terminal of the load if the measured voltage level exceeds the supply voltage. The protection device also includes instructing means for instructing the switching control device based on the decision for switching a first terminal of the load.

Abstract translation: 提供了一种保护装置，用于通过将感性负载的第一和第二端子切换到电源电压的相应极点来保护能够控制通过受电源电压的电感负载的电流的开关装置。 开关装置在开关控制装置的控制下。 开关控制装置基于预定算法进行动作。 开关器件还包括回扫体二极管。 保护装置包括用于测量负载端子上的电压电平的测量装置，以及如果所测量的电压电平超过电源电压则决定是否切换负载的第一端子。 保护装置还包括用于基于用于切换负载的第一端子的决定来指示切换控制装置的指示装置。

公开(公告)号：US20030060164A1

公开(公告)日：2003-03-27

申请号：US10254028

申请日：2002-09-24

Applicant: STMicroelectronics N.V.

Inventor： Corinne Bonhomme

IPC: H04B017/00

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.

Abstract translation: 用于估计在无线通信系统中操作并且经由传输信道与基站进行通信的移动终端的移动速度的过程包括估计传输信道的衰落，以及对衰落进行自相关以提供第一自相关结果。 针对移动终端的移动速度的预定值计算参考自相关结果，其计算基于对衰落执行的已知的自相关函数。 该过程还包括将第一自相关结果与各种参考自相关结果进行比较，以及基于该比较来估计移动终端的移动速度。

公开(公告)号：US20030050017A1

公开(公告)日：2003-03-13

申请号：US10232117

申请日：2002-08-30

Applicant: STMicroelectronics N.V.

Inventor： Miguel Kirsch

IPC: H04B017/00 ,  H04Q007/20

CPC classification number: G01S11/06

Abstract: Estimating the speed of movement of a mobile terminal of a wireless communication system communicating with a base station includes calculating a normalized auto-covariance of the instantaneous power of the signal received by the mobile terminal or by the base station.

Abstract translation: 估计与基站通信的无线通信系统的移动终端的移动速度包括计算由移动终端或基站接收的信号的瞬时功率的归一化自协方差。

公开(公告)号：US20020176513A1

公开(公告)日：2002-11-28

申请号：US10113958

申请日：2002-04-01

Applicant: STMicroelectronics N.V.

Inventor： Philippe Gouessant ,  Thierry Arnaud

IPC: H04K001/02

CPC classification number: H04W52/52 ,  H04W52/226 ,  H04W52/367 ,  H04W52/44

Abstract: The transmission power of a cellular mobile telephone is adjusted as a function of received power information. The celluar mobile telephone is equipped with a variable-gain amplifier that covers the transmission power range, and the gain and supply voltage of the amplifier are tuned as a function of the received power information.

Abstract translation: 蜂窝移动电话的发送功率作为接收功率信息的函数进行调整。 celluar移动电话配备有覆盖发射功率范围的可变增益放大器，并且放大器的增益和电源电压作为接收功率信息的函数进行调谐。

公开(公告)号：US20020012410A1

公开(公告)日：2002-01-31

申请号：US09855734

申请日：2001-05-15

Applicant: STMicroelectronics N.V.

Inventor： David Chappaz

IPC: H03D001/04 ,  H03K005/01 ,  H03D001/06 ,  H03K006/04 ,  H04B001/10 ,  H04L001/00 ,  H04L025/08

CPC classification number: H04L25/0202

Abstract: A first estimate is made of the impulse response of the channel considered as a whole, then this first estimate is corrected independently of the information transmitted for obtaining a corrected final estimate of the impulse response of the channel. This is done by taking account of the fact that the impulse response of the sender and the impulse response of the receiver are known.

Abstract translation: 首先估计作为整体考虑的信道的脉冲响应，然后该第一估计被独立于为了获得校正的信道的脉冲响应的最终估计而被发送的信息被校正。 这是通过考虑到发送器的脉冲响应和接收器的脉冲响应是已知的事实来完成的。

公开(公告)号：US20150341159A1

公开(公告)日：2015-11-26

申请号：US14817996

申请日：2015-08-04

Applicant: STMicroelectronics N.V.

Inventor： Steven R. Norsworthy ,  Jason Rupert Redgrave

IPC: H04L7/00 ,  H04L7/02

CPC classification number: H04L7/0008 ,  H03H17/0614 ,  H03H17/0628 ,  H03H2218/04 ,  H04L7/0025 ,  H04L7/005 ,  H04L7/02

Abstract: An interpolator or decimator includes an elastic storage element in the signal path between first and second clock domains. The elastic element may, for example, be a FIFO which advantageously allows short term variation in sample clocks to be absorbed. A feedback mechanism controls a delta-sigma modulated modulo-N counter based sample clock generator. The elastic element combined with a delta-sigma modulator and counter creates a noise-shaped frequency lock loop without additional components, resulting in a much simplified interpolator and decimator.

Abstract translation: 内插器或抽取器包括在第一和第二时钟域之间的信号路径中的弹性存储元件。 弹性元件可以例如是有利地允许采样时钟的短期变化被吸收的FIFO。 反馈机制控制基于Δ-Σ调制的模N计数器的采样时钟发生器。 与Δ-Σ调制器和计数器结合的弹性元件产生噪声形式的频率锁定环，而没有额外的组件，导致了非常简化的内插器和抽取器。

公开(公告)号：US09130700B2

公开(公告)日：2015-09-08

申请号：US14295233

申请日：2014-06-03

Applicant: STMicroelectronics, N.V.

Inventor： Steven R. Norsworthy ,  Jason Rupert Redgrave

IPC: H03L7/16 ,  H04B1/06 ,  H04L7/00 ,  H03H17/06 ,  H04L7/02

CPC classification number: H04L7/0008 ,  H03H17/0614 ,  H03H17/0628 ,  H03H2218/04 ,  H04L7/0025 ,  H04L7/005 ,  H04L7/02

Abstract: Interpolator and decimator apparatuses and methods are improved by the addition of an elastic storage element in the signal path. In one exemplary embodiment, the elastic element comprises a FIFO which advantageously allows short term variation in sample clocks to be absorbed, and also provides a feedback mechanism for controlling a delta-sigma modulated modulo-N counter based sample clock generator. The elastic element combined with a delta-sigma modulator and counter creates a noise-shaped frequency lock loop without additional components, resulting in a much simplified interpolator and decimator.

Abstract translation: 通过在信号路径中添加弹性存储元件来改进插值器和抽取器装置和方法。 在一个示例性实施例中，弹性元件包括有利地允许采样时钟的短期变化被吸收的FIFO，并且还提供用于控制基于Δ-Σ调制的模N计数器的采样时钟发生器的反馈机制。 与Δ-Σ调制器和计数器结合的弹性元件产生噪声形式的频率锁定环，而没有额外的组件，导致了非常简化的内插器和抽取器。