公开(公告)号：US5848170A

公开(公告)日：1998-12-08

申请号：US770120

申请日：1996-12-18

Applicant: Yannick Mahieux ,  Gregoire Le Tourneur ,  Alain Saliou

Inventor： Yannick Mahieux ,  Gregoire Le Tourneur ,  Alain Saliou

IPC: H04R1/40 ,  H04R3/00

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/405

Abstract: An acoustic antenna for computer workstation, used for video conferencing that comprises a plurality of microphones connected to a summator circuit. The microphones are distributed in a layout so as to form a substantially straight line and are each spaced with respect to a reference microphone placed in the vicinity of the vertical axis of symmetry of the screen of the workstation according to a specified law. The layout exhibits a substantially cylindrical directivity pattern whose axis of revolution is formed by the straight line.

Abstract translation: 一种用于计算机工作站的声学天线，用于视频会议，其包括连接到加法器电路的多个麦克风。 麦克风分布在布局中以形成基本上直的线，并且相对于放置在工作站的屏幕的垂直对称轴附近的参考麦克风根据指定的规律分开。 该布局呈现出一条大致圆柱形的方向性图案，其旋转轴线由直线形成。

公开(公告)号：US5845244A

公开(公告)日：1998-12-01

申请号：US645388

申请日：1996-05-13

Applicant: Stephane Proust

Inventor： Stephane Proust

IPC: G10L13/00 ,  G10L19/06 ,  H03H21/00 ,  H03M7/30 ,  G10L9/14

CPC classification number: G10L19/06

Abstract: In an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter with transfer function W(z)=A(z/.gamma..sub.1)/A(z/.gamma..sub.2), the values of the spectral expansion coefficients .gamma..sub.1 and .gamma..sub.2 are adapted dynamically on the basis of spectral parameters obtained during short-term linear prediction analysis. The spectral parameters serving in this adaptation may in particular comprise parameters representative of the overall slope of the spectrum of the speech signal, and parameters representative of the resonant character of the short-term synthesis filter.

Abstract translation: 在采用具有传递函数W（z）= A（z /γ1）/ A（z /γ2）的短期感知加权滤波器的综合语音编码器中，频谱扩展系数γ1 并且γ2基于在短期线性预测分析期间获得的频谱参数动态地适应。 在该适配中服务的频谱参数可以特别地包括表示语音信号的频谱的总体斜率的参数，以及表示短期合成滤波器的谐振特性的参数。

公开(公告)号：US5832146A

公开(公告)日：1998-11-03

申请号：US627492

申请日：1996-04-04

Applicant: Adrien Bruno

Inventor： Adrien Bruno

IPC: G02B6/126 ,  G02B6/34 ,  G02B6/00

CPC classification number: G02B6/12011 ,  G02B6/12023 ,  G02B6/126

Abstract: The invention relates to a multi-wavelength filter that is insensitive to polarization, comprising a bundle of optical waveguides made on a common substrate and organized in such a manner that the wavelength response of the filter depends on the phase shifting to which the light propagating in the waveguides is subject. The filter also comprises polarization rotators placed on the path of the light in such a manner that in each of the optical waveguides the light paths for the TE and TM polarization modes are of equal length. The polarization rotators are of the type comprising means for loading each optical waveguide and for creating asymmetry in the effective refractive index thereof.

Abstract translation: 本发明涉及对极化不敏感的多波长滤波器，包括在公共衬底上制成的一束光波导，并以这样一种方式组织，使得滤波器的波长响应取决于光传播到其中的相移 波导是对象。 滤光器还包括以这样的方式放置在光路上的偏振旋转器，即在每个光波导中，用于TE和TM偏振模的光路具有相等的长度。 偏振旋转器的类型包括用于加载每个光波导并且用于产生其有效折射率的不对称的装置。

公开(公告)号：US5818863A

公开(公告)日：1998-10-06

申请号：US789848

申请日：1997-01-28

Applicant: Bernard Nabet ,  Jean-Claude Bouley ,  Nordine Bouadma

Inventor： Bernard Nabet ,  Jean-Claude Bouley ,  Nordine Bouadma

IPC: H01S5/00 ,  H01S5/183 ,  H01S5/22 ,  H01S5/223 ,  H01S5/227 ,  H01S5/323 ,  H01S5/343 ,  H01S3/19 ,  H01S3/08

CPC classification number: B82Y20/00 ,  H01S5/18341 ,  H01S5/0207 ,  H01S5/18308 ,  H01S5/18311 ,  H01S5/18369 ,  H01S5/2063 ,  H01S5/2211 ,  H01S5/32391 ,  H01S5/34306 ,  H01S5/34313

Abstract: A vertical-cavity surface-emitting laser component operating at a wavelength lying in the range 1.3 .mu.m to 1.55 .mu.m, the component comprising a layer of active material having an injection zone of width that is smaller than the width of the component, said zone emitting radiation when an electrical current is injected therein, the component also comprising an amplifying medium for amplifying the radiation and two mirrors that are reflective at the emission wavelength and disposed respectively above and below the amplifying medium. The amplifying medium includes a circular barrier extending facing the active material, said barrier opposing the passage of current and defining a current-passing channel in its center facing the injection zone, said channel being of a width that is smaller than the width of the injection zone.

Abstract translation: 一种工作在1.3μm至1.55μm范围内的波长的垂直腔表面发射激光器部件，该部件包括具有小于部件宽度的宽度的注入区的活性材料层，所述注入区的宽度小于该部件的宽度， 在其中注入电流时发射辐射的区域，该成分还包括用于放大辐射的放大介质和两个在发射波长处反射并且放置在放大介质上方和下方的反射镜。 所述放大介质包括面向所述活性材料延伸的圆形屏障，所述屏障与电流通过相反，并且在其面向所述注入区的中心中限定电流通道，所述通道的宽度小于所述注入的宽度 区。

公开(公告)号：US5818297A

公开(公告)日：1998-10-06

申请号：US855189

申请日：1997-05-13

Applicant: Philippe Levionnais

Inventor： Philippe Levionnais

IPC: H04L27/227 ,  H04L27/22

CPC classification number: H04L27/2276

Abstract: The demodulator is for processing a signal having a carrier modulated by (0, .pi.) phase shifts and sampled at a rate that is at least twice the frequency of the carrier co. It comprises, in cascade: a first multiplier for squaring successive samples e(t), a phase locked loop adjusted to the frequency of the carrier, thereby performing programmable digital filtering; a divider for dividing the frequency by two, reconstituting the carrier from the output of the phase locked loop; a second multiplier receiving the sampled input signal and the output signal from the divider and an output lowpass digital filter. A phase adjustment circuit is placed upstream of one of the inputs of the second multiplier.

Abstract translation: 解调器用于处理具有由（0，pi）相位调制的载波的信号，并以至少是载波co频率的两倍的速率进行采样。 它包括级联：用于对连续样本e（t）进行平方的第一乘法器，调整到载波频率的锁相环，从而执行可编程数字滤波; 用于将频率除以2的分频器，从锁相环的输出重构载波; 接收采样输入信号的第二乘法器和来自分频器的输出信号和输出低通数字滤波器。 相位调整电路位于第二乘法器的输入之一的上游。

公开(公告)号：US5812965A

公开(公告)日：1998-09-22

申请号：US731381

申请日：1996-10-11

Applicant: Dominique Massaloux

Inventor： Dominique Massaloux

IPC: G10L11/02 ,  G10L13/00 ,  G10L19/00 ,  G10L19/04 ,  H04J3/17 ,  G10L3/02 ,  G10L9/00

CPC classification number: G10L19/012 ,  H04J3/175 ,  G10L25/18

Abstract: A process and a device for creating comfort noise for discontinuous speech transmission in which, following the end of each detected active period, a silence descriptor frame is generated as a set of parameters describing the comfort noise. For every successive current inactive frame, the frequency spectrum is analysed and then compared with a reference spectrum stored previously. Upon identity of the reference frequency spectrum and the current frame spectrum, no new silence descriptor frame is transmitted. Upon absence of identity of these spectra, a new silence descriptor frame is transmitted.

Abstract translation: 一种用于产生用于不连续语音传输的舒适噪声的过程和设备，其中，在每个检测到的活动期间结束之后，产生一个沉默描述符帧作为描述舒适噪声的一组参数。 对于每个连续的当前非活动帧，分析频谱，然后与之前存储的参考频谱进行比较。 基于参考频谱和当前帧频谱的身份，不会发送新的静默描述符帧。 在没有这些频谱的身份的情况下，传输新的静默描述符帧。

公开(公告)号：US5808530A

公开(公告)日：1998-09-15

申请号：US610166

申请日：1996-02-29

Applicant: Ndiata Kalonji ,  Jack Semo ,  Jacques Tanniou

Inventor： Ndiata Kalonji ,  Jack Semo ,  Jacques Tanniou

IPC: H01L33/62 ,  H01S5/022 ,  H01S5/042 ,  H01S5/062 ,  H01P5/00 ,  H05K5/02

CPC classification number: H01L33/62 ,  H01L2924/0002

Abstract: The invention relates to a modular assembly comprising at least two modules to be assembled together and to be electrically interconnected when assembled for the purpose of conveying a microwave signal from an electronic circuit of one of the modules to an electronic circuit of the other module, said electronic circuits being disposed in respective packages. One of said electronic circuits includes at least one opto-electronic component that is optically connected to at least one optical fiber. Both packages are adapted to receive a microwave feedthrough having a central conductor whose axial ends come into contact with conductive tracks belonging to each of said electronic circuits, respectively.

Abstract translation: 本发明涉及一种模块化组件，其包括要组装在一起的至少两个模块，并且当组装成电气互连时，用于将微波信号从其中一个模块的电子电路传送到另一个模块的电子电路，所述模块化组件 电子电路设置在相应的封装中。 所述电子电路中的一个包括光学连接到至少一个光纤的至少一个光电子部件。 两个封装适于接收具有中心导体的微波馈通，该中心导体的轴向端分别与属于每个所述电子电路的导电轨道接触。

公开(公告)号：US5787390A

公开(公告)日：1998-07-28

申请号：US763457

申请日：1996-12-11

Applicant: Catherine Quinquis ,  Alain Le Guyader

Inventor： Catherine Quinquis ,  Alain Le Guyader

IPC: G10L19/06 ,  H03H17/02 ,  H03M7/30 ,  G10L3/02 ,  G10L5/00

CPC classification number: G10L19/06

Abstract: The linear predictive analysis method is used in order to determine the spectral parameters representing the spectral envelope of the audiofrequency signal. This method comprises q successive prediction stages, q being an integer greater than 1. At each prediction stage p(1.ltoreq.p.ltoreq.q), parameters are determined representing a predefined number Mp of linear prediction coefficients a.sub.1.sup.p, . . . , a.sub.Mp.sup.p of an input signal of the said stage. The audiofrequency signal to be analysed constitutes the input signal of the first stage. The input signal of a stage p+1 consists of the input signal of the stage p filtered with a filter with transfer function ##EQU1##

Abstract translation: 使用线性预测分析方法来确定表示音频信号的频谱包络的​​频谱参数。 该方法包括q个连续的预测阶段，q是大于1的整数。在每个预测阶段p（1），确定表示线性预测系数a1p的预定数量Mp的参数。 。 。 ，所述级的输入信号的一个Mpp。 待分析的音频信号构成第一级的输入信号。 阶段p + 1的输入信号由具有传递函数的滤波器滤波的级p的输入信号组成

公开(公告)号：US5786039A

公开(公告)日：1998-07-28

申请号：US645983

申请日：1996-05-14

Applicant: Pierre Brouquet

Inventor： Pierre Brouquet

IPC: H01L21/312 ,  H01L21/316 ,  H01L21/762 ,  H05H1/24

CPC classification number: H01L21/76224 ,  H01L21/3121 ,  H01L21/316

Abstract: The invention relates to a process for electrical insulation of conductive or semiconductor materials of a substrate, characterized in that it comprises at least the following steps: (a) at least one so-called conformal layer of insulating oxide is deposited on the predetermined regions of the substrate to be insulated; (b) a layer of planarizing oxide precursor is deposited on the predetermined regions by chemical reaction in plasma phase of a tetraalkylsilicate and of hydrogen peroxide; (c) at least one layer of insulating oxide is deposited on the predetermined regions; and (d) a conversion annealing operation is carried out. It also relates to the semiconductor devices and integrated-circuit elements having insulated narrow cavities.

Abstract translation: 本发明涉及一种用于基板的导电或半导体材料的电绝缘的方法，其特征在于其至少包括以下步骤：（a）至少一个所谓的绝缘氧化物保形层沉积在 待绝缘的基板; （b）通过在四烷基硅酸盐和过氧化氢的等离子体相中的化学反应将一层平坦化氧化物前体沉积在预定区域上; （c）在预定区域上沉积至少一层绝缘氧化物; 和（d）进行转化退火操作。 它还涉及具有绝缘窄腔的半导体器件和集成电路元件。

公开(公告)号：US5767504A

公开(公告)日：1998-06-16

申请号：US639268

申请日：1996-04-24

Applicant: Martial Menconi

Inventor： Martial Menconi

IPC: G11C17/00 ,  G06K17/00 ,  G06K19/00 ,  G06K19/073 ,  G07F7/08 ,  G07F7/10 ,  G11C5/00 ,  G11C16/02 ,  H04M15/00 ,  H04M17/00 ,  G06K19/06

CPC classification number: G07F7/1008 ,  G06Q20/341 ,  G06Q20/357 ,  G07F7/082 ,  G07F7/0866

Abstract: A smart card having a counter zone associated with a first reference zone, and a balance zone associated with a second reference zone. The counter zone has at least two levels of counters, each having at least two bits. The counter zone is operable in accordance with the abacus principle. The first reference zone has at least one register with at least two bits and is operable to display the proper erasing of the counters. The second reference zone has at least two fields. Bits of a balance are written simultaneously in the balance zone and in the second reference zone. The balance zone and the second reference zone each include one validation bit making it possible to know if the balance is fully written.

Abstract translation: 具有与第一参考区相关联的计数区的智能卡和与第二参考区相关联的平衡区。 计数器区域具有至少两个级别的计数器，每个具有至少两个位。 柜台区域可根据珠算原则操作。 第一参考区域具有至少一个具有至少两个位的寄存器，并且可操作以显示计数器的适当擦除。 第二个参考区域至少有两个字段。 余额的位同时写入平衡区和第二参考区。 平衡区和第二参考区各自包括一个验证位，使得可以知道天平是否被完全写入。