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公开(公告)号：JP2003188755A
公开(公告)日：2003-07-04
申请号：JP2002301377
申请日：2002-10-16
Applicant: ST MICROELECTRONICS NV
Inventor： CONTI PATRICK
Abstract: PROBLEM TO BE SOLVED: To remove static and dynamic DC voltage offsets in a direct- conversion receiver. SOLUTION: The direct-conversion receiver is provided with an analog stage for receiving an incident signal from a transmission channel, mixers and programmable-gain amplifiers. The receiver is further provided with at least one compensation module having an input terminal and an output terminal respectively connected between the output of the mixers and the input of the programmable-gain amplifiers for compensating for both a static DC voltage offset and a possible dynamic DC voltage offset of the analog stage. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003163614A
公开(公告)日：2003-06-06
申请号：JP2002268620
申请日：2002-09-13
Applicant: ST MICROELECTRONICS NV
Inventor： BONHOMME CORINNE
Abstract: PROBLEM TO BE SOLVED: To reduce complications in obtaining a fading coefficient of a multi- path transmission channel route. SOLUTION: First estimation of the fading coefficient of a multi-path transmission channel is determined by the maximum likelihood method. A set of Wiener filter coefficients are stored according to predetermined speed of movement of a mobile terminal and predetermined power level of a signal. The real speed of the mobile terminal is estimated and the power of the signal for each path is measured. Thereafter, from the estimated movement speed and the measured signal power, a set of the Wiener filter coefficients are derived with which the first estimations are filtered to obtain the final estimation of the fading coefficient. COPYRIGHT: (C)2003,JPO
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13.发明专利
公开(公告)号：JP2003152616A
公开(公告)日：2003-05-23
申请号：JP2002256499
申请日：2002-09-02
Applicant: ST MICROELECTRONICS NV
Inventor： CHAPPAZ DAVID
Abstract: PROBLEM TO BE SOLVED: To provide a method for estimating the speed of movement of a mobile terminal. SOLUTION: In this method for estimating the speed of movement of the mobile terminal in a wireless communication system under calling with a station via a transmission channel, the estimation of the speed of movement is composed of an estimation of the impulse response of the transmission channel at a given instant, an estimation of the time derivative of this estimated impulse response, and a determination of a ratio comprising a denominator taking into account the energy of the estimated impulse response and a numerator taking into account the energy of the estimated time derivative of the estimated impulse response. Thus, the speed of a mobile telephone is estimated by determining the ratio of two energies related to the impulse response of the channel and the time derivative. The impulse response of the channel and the time derivative can be estimated by various methods.
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公开(公告)号：JP2002185401A
公开(公告)日：2002-06-28
申请号：JP2001324850
申请日：2001-10-23
Applicant: ST MICROELECTRONICS NV
Inventor： CONTI PATRICK , BERENS FRIEDBERT
Abstract: PROBLEM TO BE SOLVED: To optimize the efficiency of transmission power without affecting the quality of a service by controlling the power of a remote terminal equipment or particularly a cellular mobile telephone. SOLUTION: The cellular mobile telephone comprises at least two power amplifiers each having a common operating region. If one of the amplifiers must be disconnected, the best time of switching is specified based on a predetermined transmission interrupting reference. The presently selected amplifier is used and its power regulation is continued until the switching time arrives. When the time arrives, the transmission is once interrupted, and then another amplifier is switched on.
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15.发明专利
公开(公告)号：JP2002050963A
公开(公告)日：2002-02-15
申请号：JP2001169383
申请日：2001-06-05
Applicant: ST MICROELECTRONICS NV
Inventor： ARNAUD THIERRY , BERENS FRIEDBERT
Abstract: PROBLEM TO BE SOLVED: To reduce the power consumption of a digital information transmitting/receiving device, especially a cellular mobile telephone set. SOLUTION: The process consists of a fractional-dividing phase-synchronous loop for receiving a basic signal (SBA) from an oscillator of low accuracy, and outputs a clock signal (SH) of high accuracy when a transmitting/receiving step is in an active state, and changes over the output of the oscillator to an input part of a processing step when the transmitting/receiving step is in an inactive step, thereby achieving reduction in the power consumption.
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Patent Agency Ranking
公开(公告)号：JP2002043984A
公开(公告)日：2002-02-08
申请号：JP2001158206
申请日：2001-05-28
Applicant: ST MICROELECTRONICS NV
Inventor： CHAPPAZ DAVID
Abstract: PROBLEM TO BE SOLVED: To enhance channel estimation so as to be equally applicable to learning estimation and blind estimation. SOLUTION: In a method for estimating an impulse response of an information transmission channel consisting of an information transmitter, an information receiver, and a propagation means resident between the transmitter and the receiver, a first estimation is made for an impulse response (H) of the channel by taking the entire channel into consideration, the first estimation is corrected by taking a fact that an impulse response of the transmitter and an impulse response of the receiver are known into consideration to acquire a final estimate (HF) resulting from correcting the impulse response of the channel.
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公开(公告)号：JP2001244855A
公开(公告)日：2001-09-07
申请号：JP2000377458
申请日：2000-12-12
Applicant: ST MICROELECTRONICS SA , ST MICROELECTRONICS NV
Inventor： NORDSTROEM TOMAS , BENGTSSON DANIEL , ISSON OLIVIER
Abstract: PROBLEM TO BE SOLVED: To provide a canceler circuit which can remove far-end crosstalk in a digital subscriber line transmission system. SOLUTION: Modulated data actually sent by a network terminal model are estimated from the frequency components of a discrete multi-tone symbol received by a line terminal modem to evaluate far-end crosstalk as the linear combination of those estimated values. Far-end crosstalk removing circuits for line terminal models are all provided in a centralized system.
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18.发明专利
公开(公告)号：JP2001168834A
公开(公告)日：2001-06-22
申请号：JP2000311561
申请日：2000-10-12
Applicant: ST MICROELECTRONICS NV , ST MICROELECTRONICS SA
Inventor： ISAKSSON MIKAEL , OLSSON LENNART , MESTDAGH DENIS JULIEN GILLES
Abstract: PROBLEM TO BE SOLVED: To provide a method for matching timing of DMT frames with the same frame timing in a DMT system adopted by a communication system where the DMT system is adopted as a multi-carrier system, two VDLS systems each having a couple of modems are employed, and at least the two VDSL systems belong to a single-binder group, in common with both the VDSL systems. SOLUTION: This method includes a step, where a temporal deviation of a crosstalk DMT signal added to a received DMT signal and an output thereof are estimated through the estimation employed by a modem to synchronize its own frame timing with timing of a main crosstalk signal frame, a step where autocorrelation is used for a received signal an a copy resulting from the delayed received signal, and a step where a frame border of different DMT components of the received signal by detecting a part of the signal with maximum correlation.
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公开(公告)号：WO03054919A3
公开(公告)日：2003-12-31
申请号：PCT/DE0204439
申请日：2002-12-04
Applicant: ST MICROELECTRONICS NV , LULE TAREK
Inventor： LULE TAREK
IPC: H01L20060101 , H01L21/8238 , H01L27/146 , H01L31/18
CPC classification number: H01L27/14643 , H01L27/14685 , H01L27/14689 , H01L27/14692
Abstract: The invention relates to a method for producing image sensors on the basis of TFA technology consisting of an amorphous thin-layer system that has been applied on a crystalline ASIC. The inventive method enables the production of image sensors on the basis of TFA technology, which improve the picture quality at low luminous intensity by reducing the dark currents. The photodiodes in the thin-layer material (11) that are configured as pixels are linked with transistor structures (33) in the crystalline ASIC (2) via back electrodes (12). The transistor structures (33) have particularly low leakage currents due to implantation technology or optimization of the production process.
Abstract translation: 本发明涉及一种用于图像传感器的制造基于TFA的技术，包括一种无定形的薄膜系统，该系统已被应用到的结晶ASIC的处理。 通过本发明，图像传感器是基于TFA技术被创建，由此在低光照度提供更高质量的图像，即暗电流可以减小。 这是这样实现的，在该薄膜材料上的光电二极管上的背面电极（12），每个晶体管结构（33）形成（11）逐个像素被连接在结晶ASIC（2），其具有通过注入技术或特别低的漏电流的制造步骤的优化。
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公开(公告)号：WO03098833A2
公开(公告)日：2003-11-27
申请号：PCT/BE0300088
申请日：2003-05-19
Applicant: ST MICROELECTRONICS NV , PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
Inventor： PISONI FABIO , HUG ROLAND , BONAVENTURA MARCO
CPC classification number: H04L25/03159 , H04B3/23 , H04L27/2647
Abstract: There is disclosed a multi-carrier transceiver system for use in echo-cancellation. The transceiver system is arranged to generate from input data (1) a multi-carrier transmit signal (u) comprising a plurality of multi-carrier data blocks. The transceiver system also has a multi-carrier signal receiver responsive to an input multi-carrier receive signal (Yi) received from a remote signal transmitter. An echo canceller (2000) is arranged to generate from a pair of multi-carrier data blocks (u) a set of frequency-domain echo parameters (W) for use in generating an echo signal, (Y), to generate the echo signal using the frequency-domain echo parameters (W), and to input the echo signal (Y) to the multi-carrier signal receiver for use in generating an echo-cancelled receive signal (Ei) from the input receive signal (Yi) and the echo signal (Y).
Abstract translation: 公开了一种用于回波消除的多载波收发机系统。 收发器系统被布置成从输入数据（1）生成包括多个多载波数据块的多载波发射信号（u）。 收发机系统还具有响应于从远程信号发射机接收的输入多载波接收信号（Yi）的多载波信号接收机。 回波消除器（2000）被布置成从一对多载波数据块（u）生成用于产生回波信号（Y）的一组频域回波参数（W），以产生回波信号 使用频域回波参数（W），并将回波信号（Y）输入到多载波信号接收机，以用于从输入接收信号（Yi）产生回波消除接收信号（Ei）和 回波信号（Y）。
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