公开(公告)号：US20030054771A1

公开(公告)日：2003-03-20

申请号：US10233055

申请日：2002-08-30

Applicant: STMicroelectronics N.V.

Inventor： David Chappaz

IPC: H04B017/00

CPC classification number: H04L25/0212 ,  G01S11/026

Abstract: Estimating the speed of movement of a mobile terminal includes estimating the impulse response of the transmission channel at a given instant, and estimating the time derivative of the estimated impulse response. Estimating the speed also includes determining of a ratio of the energy of the estimated impulse response to the energy of the estimated time derivative.

Abstract translation: 估计移动终端的移动速度包括估计在给定时刻的传输信道的脉冲响应，以及估计估计的脉冲响应的时间导数。 估计速度还包括确定估计的脉冲响应的能量与估计的时间导数的能量的比率。

公开(公告)号：US20020052215A1

公开(公告)日：2002-05-02

申请号：US10000612

申请日：2001-10-24

Applicant: STMicroelectronics N.V.

Inventor： Patrick Conti ,  Friedbert Berens

IPC: H04B007/00

CPC classification number: H04W52/52

Abstract: A cellular telephone includes a plurality of power amplifiers having a common operating region. If one of the amplifiers has to be deselected, a desired moment for the switching to another amplifier is defined based upon a predetermined transmission interrupt criterion. The power continues to be adjusted with the currently selected amplifier until the instant of switch over. Switching to the other amplifier may then be performed after the transmission has been interrupted.

Abstract translation: 蜂窝电话包括具有公共操作区域的多个功率放大器。 如果必须取消其中一个放大器，则基于预定的传输中断标准来定义用于切换到另一放大器的所需时刻。 电源继续使用当前选择的放大器进行调整，直到切换为止。 然后可以在传输中断之后切换到另一个放大器。

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：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。

公开(公告)号：US20040240597A1

公开(公告)日：2004-12-02

申请号：US10814824

申请日：2004-03-31

Applicant: STMicroelectronics N.V.

Inventor： Chiara Cattaneo ,  Nils Rinaldi ,  Matteo Frigerio ,  Regis Cattenoz

IPC: H04L027/06

CPC classification number: H04B1/7183 ,  H04B2001/6908

Abstract: An incident signal contains a preamble including a training sequence having a series of pulses whose polarity and time shifts are defined by respective polarity code and time-hopping code. A method includes a digital cross-correlation of the received signal with the training sequence. The cross-correlation algebraically sums in accordance with the polarity code windows of the received signal. The starting points of the windows are determined by the time-hopping code. The cross-correlation further includes detecting the end point of the preamble from the result of the digital cross-correlation. When the size of the receiving buffer, i.e., the size of the window is smaller than the number N of samples of each replica of the training sequence, it is particularly advantageous that the digital cross-correlation be performed iteratively in a block-by-block fashion. The computation of each block is split into M slices which are computed by algebraically summing windows N/M samples long.

Abstract translation: 入射信号包含前导码，其包括具有一系列脉冲的训练序列，其极性和时间偏移由相应的极性码和跳时码定义。 一种方法包括接收信号与训练序列的数字互相关。 互相关代数根据接收信号的极性码窗口相加。 窗口的起点由跳时码决定。 互相关还包括从数字互相关的结果检测前同步码的终点。 当接收缓冲器的大小（即，窗口的大小）小于训练序列的每个副本的样本数N时，特别有利的是，数字互相关是逐个逐行执行的， 块时尚。 每个块的计算被分成M个片段，它们通过对N / M个样本长的代数求和来计算。

公开(公告)号：US20040171397A1

公开(公告)日：2004-09-02

申请号：US10754465

申请日：2004-01-09

Applicant: STMicroelectronics N.V. ,  STMicroelectronics S.r.I.

Inventor： Patrick Cerisier ,  Giovanni Cerusa

IPC: H04B015/00

CPC classification number: H03F3/211 ,  H03F3/2175 ,  H03F2200/331 ,  H03F2200/372

Abstract: A power amplification device includes an input for receiving a signal having a useful or desired frequency band, and power amplification circuitry of the delta-sigma type connected to the input. The power amplification circuitry exhibits an order greater than or equal to one in the useful frequency band, and an order greater than or equal to one outside the useful frequency band.

Abstract translation: 功率放大装置包括用于接收具有有用或期望频带的信号的输入端和连接到输入端的Δ-Σ型功率放大电路。 功率放大电路在有用频带中呈现大于或等于1的阶数，以及在有用频带外的大于或等于1的阶数。

公开(公告)号：US20040162045A1

公开(公告)日：2004-08-19

申请号：US10754464

申请日：2004-01-09

Applicant: STMicroelectronics N.V. ,  STMicroelectronics S.r.l.

Inventor： Patrick Cerisier ,  Andrea Panigada

IPC: H04B001/16

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：US20040073421A1

公开(公告)日：2004-04-15

申请号：US10622019

申请日：2003-07-17

Applicant: STMicroelectronics N.V.

Inventor： Michael Ansorge ,  Giuseppina Biundo Lotito ,  Benito Carnero

IPC: G10L019/10

CPC classification number: G10L19/12 ,  G10L19/08

Abstract: A method for encoding wideband speech includes sampling the speech to obtain successive voice frames each comprising a predetermined number of samples, and determining for each voice frame parameters of a linear prediction model. The parameters include a long-term excitation word extracted from an adaptive coded directory, and a short-term excitation word extracted from a fixed coded directory. The extraction of the long-term excitation word is performed using a first weighting filter. The extraction of the short-term excitation word is performed using a second weighting filter cascaded with a third weighting filter. The first and third weighting filters are equal.

Abstract translation: 一种用于编码宽带语音的方法包括对语音进行采样，以获得每个包括预定数量样本的连续语音帧，并且确定线性预测模型的每个语音帧参数。 这些参数包括从自适应编码目录中提取的长期激励词和从固定编码目录中提取的短期激励词。 使用第一加权滤波器来执行长期激励字的提取。 使用与第三加权滤波器级联的第二加权滤波器来执行短期激励字的提取。 第一和第三加权滤波器相等。

公开(公告)号：US20040064312A1

公开(公告)日：2004-04-01

申请号：US10622020

申请日：2003-07-17

Applicant: STMicroelectronics N.V.

Inventor： Michael Ansorge ,  Giuseppina Biundo Lotito ,  Benito Carnero

IPC: G10L019/04

CPC classification number: G10L19/12

Abstract: A method for encoding speech includes sampling speech to obtain successive voice frames each having a predetermined number of samples, and determining parameters of a linear prediction model for each voice frame. The parameters include a long-term excitation word extracted from an adaptive coded directory using a first linear prediction filter and an associated long-term gain. The parameters further include a short-term excitation word extracted from a fixed coded directory and an associated short-term gain. The adaptive coded directory is updated based upon the extracted long-term excitation word and the extracted short-term excitation word. The first linear prediction filter is updated using the short-term excitation word filtered by a second filter. The second filter has an order greater than or equal to 1 and coefficients thereof depend on the long-term gain for reducing a short-term excitation contribution when a long-term excitation gain is greater than a threshold.

Abstract translation: 一种用于编码语音的方法包括采样语音以获得每个具有预定数量样本的连续语音帧，以及确定每个语音帧的线性预测模型的参数。 参数包括使用第一线性预测滤波器和相关联的长期增益从自适应编码目录提取的长期激励词。 这些参数还包括从固定编码目录中提取的短期激励词和相关联的短期增益。 基于提取的长期激励词和提取的短期激励词来更新自适应编码目录。 使用由第二滤波器滤波的短期激励字来更新第一线性预测滤波器。 第二滤波器具有大于或等于1的阶数，并且当长期激励增益大于阈值时，其系数取决于用于减少短期激励贡献的长期增益。