公开(公告)号：JP2004328797A

公开(公告)日：2004-11-18

申请号：JP2004217121

申请日：2004-07-26

Applicant: Stmicroelectronics Nv ,  Stmicroelectronics Sa ,  エステーミクロエレクトロニクス エンフェーSTMicroelectronics NV ,  エステーミクロエレクトロニクス ソシエテ アノニム

Inventor： MESTDAGH DENIS J G ,  FARGERE GERARD ,  ISAKSSON MIKAEL R

IPC: H04J11/00 ,  H04L27/26

CPC classification number: H04L5/003 ,  H04L5/0007 ,  H04L27/2607

Abstract: PROBLEM TO BE SOLVED: To provide a modem for a transmission system for enabling a single modem to effectively utilize a number of DSL standards with low complexity. SOLUTION: A digital subscriber line transmission using QAM modulation on several equally spaced discrete tones, uses, at a high transmission rate, N=2048/p or 4096/p tones spaced by 4.3125p kHz, where (p) is a power of 2. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2007325254A

公开(公告)日：2007-12-13

申请号：JP2007129949

申请日：2007-05-16

Applicant: Stmicroelectronics Nv ,  エスティマイクロエレクトロニクス エヌヴィ

Inventor： ACHKAR ERIC ,  BERENS FRIEDBERT

IPC: H04B7/10 ,  H04B1/69

CPC classification number: H04B1/1027 ,  H04B7/0608 ,  H04B7/0814 ,  H04B7/10 ,  H04L27/2601

Abstract: PROBLEM TO BE SOLVED: To suppress accidental interference without loss of usable band width and without reduction of natural resource further, in wireless communication system.
SOLUTION: A wireless apparatus (WAP1), which belongs to the wireless communication system and is constituted so as to exchange information between another wireless apparatus in the system in main frequency band, is provided with N (N is larger than 1) sets of different antennas (ANT1, ANT2) having different antenna characteristics respectively, a controllable selecting means (SWM) constituted so as to select one set of antenna, a detecting means (DTM) constituted so as to detect the accidental existence of at least one interferences operated in the main frequency band by the selected antenna and a control means (CTLM) constituted so as to control the selecting means to select another antenna upon existence of detected interference.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：在无线通信系统中，进一步抑制不损失可用带宽而不减少自然资源的意外干扰。 属于无线通信系统并且构成为在主频带的系统中的另一无线装置之间交换信息的无线装置（WAP1）具有N（N大于1） 具有分别具有不同天线特性的不同天线组（ANT1，ANT2），构成为选择一组天线的可控选择装置（SWM），构成为检测至少一个天线的意外存在的检测装置 通过所选择的天线在主频带中工作的干扰以及控制装置（CTLM），其被构造成控制选择装置在存在检测到的干扰时选择另一个天线。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2004222265A

公开(公告)日：2004-08-05

申请号：JP2003428925

申请日：2003-12-25

Applicant: Stmicroelectronics Nv ,  Stmicroelectronics Srl ,  エスティマイクロエレクトロニクス エヌヴィ ,  エスティマイクロエレクトロニクス・ソチエタ・ア・レスポンサビリタ・リミタータSTMicroelectronics S.r.l.

Inventor： CERISIER PATRICK ,  CESURA GIOVANNI

IPC: H03F3/20 ,  H03F1/26 ,  H03F3/21 ,  H03F3/217 ,  H04B1/69

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

Abstract: PROBLEM TO BE SOLVED: To reduce a quantization noise in a frequency band positioned outside a band used for a signal. SOLUTION: The power amplification device is provided with an input part for receiving a signal having a useful frequency band, and a power amplification means of the delta-sigma type. The power amplification means of the delta-sigma type (MAP) exhibits an order greater than or equal to one in the useful band of the signal and an order greater than or equal to one outside the said useful band. Thus, a position of a zero point of a noise transmission function can be adjusted to adjust an S/N in the useful band, and a value of one or multiple frequency bands positioned outside the useful band of which the quantization noise is desired to be minimized, is made adjustable. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2004032752A

公开(公告)日：2004-01-29

申请号：JP2003167394

申请日：2003-06-12

Applicant: St Microelectronics Sa ,  Stmicroelectronics Nv ,  エスティマイクロエレクトロニクス エスエー ,  エスティマイクロエレクトロニクス エヌヴィ

Inventor： HELAL DIDIER ,  LEBOWSKY FRITZ

IPC: H04J13/00 ,  H03K7/04 ,  H04L25/49

CPC classification number: H04B1/7174 ,  H03K7/04 ,  H04L25/4902

Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling the transmission of a super-wideband position modulation pulse signal with high precision.
SOLUTION: In this method, a pulse signal is constituted so as to be involved in a time window. A control signal which contains an identification showing the position of a pulse in a corresponding window, in connection with each pulse is provided for a pulse generator. Further, continuous groups of N bits which coordinately define a digital sign showing the position of a pulse inside the window are transmitted by transmission frequency (Fe) which is greater than a pulse repetition frequency, regarding the respective time windows. The digital position sign is converted to the control signal which is spread in time along the length of the window and contains the position identification, at a moment corresponding to the digital position sign. As a result, the pulse can be positioned inside the window with a time precision equal to 1/N.Fe.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2009022008A

公开(公告)日：2009-01-29

申请号：JP2008180784

申请日：2008-07-10

Applicant: Stmicroelectronics Nv ,  エスティマイクロエレクトロニクス エヌヴィ

Inventor： BERENS FRIEDBERT ,  ACHKAR ERIC

IPC: H04B1/10 ,  H04J13/00

CPC classification number: H04B1/1027 ,  H04B1/719

Abstract: PROBLEM TO BE SOLVED: To provide a method for detecting the eventual presence of an interferer, for example, a radar signal, adapted to interfere with a wireless device, for example, an UWB device; and a corresponding device.
SOLUTION: In this method for detecting the eventual presence of an interferer adapted to interfere with a wireless device, the wireless device includes at least one receiving chain including an analog to digital conversion (ADC) stage. The method includes: receiving 30, on the receiving chain, an incident signal; delivering 31, to the ADC stage, an analog signal from the incident signal; elaborating 33 a binary information from a binary signal BS delivered by the ADC stage and representative of the level of the analog signal; analyzing 34 a temporal evolution of the binary information BINF; and detecting 35 the eventual presence of the interferer from the analysis.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于检测适于干扰例如UWB设备的无线设备的干扰源（例如，雷达信号）的最终存在的方法; 和相应的设备。 解决方案：在用于检测适于干扰无线设备的干扰源的最终存在的该方法中，无线设备包括至少一个包括模数转换（ADC）级的接收链。 该方法包括：在接收链上接收30个事件信号; 向ADC级提供31个来自事件信号的模拟信号; 详细描述了由ADC级传递的二进制信号BS的二进制信息，并表示模拟信号的电平; 分析34二进制信息BINF的时间演化; 并从分析中检测出干扰源的最终存在。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP3617453B2

公开(公告)日：2005-02-02

申请号：JP2000584656

申请日：1999-11-24

Applicant: エステーミクロエレクトロニクス エンフェーSTMicroelectronics NV ,  エステーミクロエレクトロニクス ソシエテ アノニム

Inventor： ミカエル アール． イサクソン ,  ジェラール ファルジェル ,  ドニ ジ． ジェ． メストダグ

IPC: H04J11/00 ,  H04L27/26

CPC classification number: H04L5/003 ,  H04L5/0007 ,  H04L27/2607

公开(公告)号：JP4360031B2

公开(公告)日：2009-11-11

申请号：JP2000599149

申请日：2000-02-07

Applicant: エステーミクロエレクトロニクス エンフェーSTMicroelectronics NV ,  エステーミクロエレクトロニクス ソシエテ アノニム

Inventor： ミカエル イサクソン ,  シモネ マッツォーニ ,  ドニ ジュリアン ジル メストダグ ,  マグヌス ヨハンソン

IPC: H04J1/00 ,  H04B3/32 ,  H04L5/02 ,  H04L5/14

CPC classification number: H04L5/023 ,  H04L5/143

公开(公告)号：JP2004343705A

公开(公告)日：2004-12-02

申请号：JP2004060929

申请日：2004-03-04

Applicant: Stmicroelectronics Nv ,  エスティマイクロエレクトロニクス エヌヴィ

Inventor： SMAINI LYDI ,  HELAL DIDIER

IPC: H04B1/69 ,  H04L25/49 ,  H04J13/00

CPC classification number: H04B1/7174 ,  H04L25/4902

Abstract: PROBLEM TO BE SOLVED: To integrate a pulse generating function in a command itself so as to control both pulse positions and waveforms and to provide a pulse generationg device which is embodied by CMOS technology in a particularly simple manner.
SOLUTION: Successive groups of N bits are delivered at a delivery frequency Fe greater than a predetermined frequency PRF. Each of the groups includes a sub-group composed of at least one bit. The sub-group determines a digital cue of position and of shape of a base pulse within a window of length 1/PRF. The digital queue is converted into the base pulse (MCV), and the base pulse is filtered (FLT) by at least a high-pass filter for delivering a pulse of the ultra wideband type positioned within the window of which temporal accuracy is equal to 1/N.Fe.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004104776A

公开(公告)日：2004-04-02

申请号：JP2003297026

申请日：2003-08-21

Applicant: Stmicroelectronics Nv ,  エスティマイクロエレクトロニクス エヌヴィ

Inventor： BERENS FRIEDBERT ,  THUL MICHAEL J ,  GILBERT FRANK ,  WEHN NORBERT

IPC: H03M13/27 ,  H03M13/29 ,  H04L1/00

CPC classification number: H03M13/6566 ,  H03M13/2771

Abstract: PROBLEM TO BE SOLVED: To eliminate a write access conflict without increasing entire latency in a CDMA system.
SOLUTION: The system is provided with a source memory means divided into N basic source memories, a processing means for producing N data per cycle, a target memory, N interleaving tables, and N cells connected in a ring structure. Each cell is connected among an output of the processing means, one interleaving table and a port of one target memory, each cell receives data from the processing means and two adjacent cells and sends at least several received data to at least one of the adjacent cells or successively writes some of the received data to the related target memory according to contents of the interleaving table.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP4304408B2

公开(公告)日：2009-07-29

申请号：JP2000584612

申请日：1999-11-18

Applicant: エステーミクロエレクトロニクス エンフェーSTMicroelectronics NV

Inventor： ミカエル イサクソン ,  サラ ケイト ウィルソン ,  スヴェン−ゴーラン オークヴィスト ,  ペル オードリング ,  レナルト オルソン ,  フランク ショーベルク ,  リハルト ニルソン ,  トーマス ノードストーム ,  グナル バーレンベルク ,  ダニエル ベンクトゾン ,  マグヌス ヨハンソン

IPC: H04J11/00 ,  H04L29/10 ,  H04B3/04 ,  H04B3/32 ,  H04M20060101

CPC classification number: H04B3/32 ,  H04L5/0007

Abstract: One problem, frequently encountered with VDSL transmission systems, is that upstream FEXT produced by system users having short wires can be very strong. Users having shorter wires get high bit rates whereas users having longer wires get low bit rates. In extreme cases it may happen that users with wire lengths greater than 1000 meter cannot transmit data upstream. The present invention provides a VDST transmission system with a plurality of modems. The modems are located at varying distances from a central station. There is a target bit rate for each modem. That modems on shorter wires have control means for reducing their transmit power. This reduces the FEXT produced by these modems enabling modems on longer wires to transmit at higher bit rates.