公开(公告)号：EP1437834B1

公开(公告)日：2006-09-06

申请号：EP03290066.4

申请日：2003-01-10

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

Inventor： Cerisier, Patrick ,  Panigada, Andrea

IPC: H03M3/02

CPC classification number: H03M3/446 ,  H03M3/43 ,  H03M3/45 ,  H03M3/454

公开(公告)号：EP1667353A1

公开(公告)日：2006-06-07

申请号：EP04028736.9

申请日：2004-12-03

Applicant: STMicroelectronics N.V.

Inventor： Berens, Friedbert ,  Chalard, Laurent ,  Tanrikulu, Stéphane ,  Messina, Ettore

IPC: H04L1/18 ,  H04L1/00

CPC classification number: H04L1/1845 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0057 ,  H04L1/0066 ,  H04L1/1816 ,  H04L1/1819

Abstract: The device for decoding an incident FEC encoded packet of data within an ARQ scheme, comprises processing means for performing successive decoding processes of successive intermediate FEC code encoded packets related to said incident FEC code encoded packet, said processing means including a FEC decoder. Said processing means comprises determination means (DIL2, IM, SW1, SW2) for determining initial decoding conditions from the FEC code decoding result concerning the preceding intermediate FEC code encoded packet and from said current intermediate FEC code encoded packet, and said FEC decoder (FECD1) is adapted to perform the current FEC code decoding using said initial decoding conditions.

Abstract translation: 用于解码ARQ方案中的入局FEC编码数据分组的装置包括处理装置，用于执行与所述入局FEC编码分组相关的连续中间FEC编码分组的连续解码处理，所述处理装置包括FEC解码器。 所述处理装置包括用于根据关于前述中间FEC编码分组和所述当前中间FEC编码分组的FEC码解码结果确定初始解码条件的确定装置（DIL2，IM，SW1，SW2）和所述FEC解码器（FECD1 ）适于使用所述初始解码条件执行当前FEC码解码。

公开(公告)号：EP1248375B1

公开(公告)日：2006-05-24

申请号：EP01107741.9

申请日：2001-04-02

Applicant: STMicroelectronics N.V.

Inventor： Arnaud, Thierry ,  Berens, Friedbert

IPC: H03M3/02

CPC classification number: H03M3/392 ,  H03M3/458

公开(公告)号：EP1564894A1

公开(公告)日：2005-08-17

申请号：EP04290424.3

申请日：2004-02-17

Applicant: STMicroelectronics N.V.

Inventor： Wellig, Armin ,  Zory, Julien

IPC: H03M13/39 ,  H03M13/45

CPC classification number: H03M13/451 ,  H03M13/13 ,  H03M13/23 ,  H03M13/3944

Abstract: Method for estimating a sequence of N bits (x̂ 0 x̂ 1 ...x̂ N-1 ) corresponding to a received sequence of M digital data (r 0 r 1 ...r M-1 ). The method comprising the steps of :

determining (31) candidate sequences of M RS digital data from a reduced reference sequence space comprising 2 N RS reduced reference sequences of M RS reference digital data (s 0 s 1 ...s M RS -1 ),M RS being inferior to M and 2 N RS being inferior or equal to 2 N ;
making up (32) each candidate sequence with remaining reference symbols to obtain at least one complete candidate sequence of M digital data ; and
determining (33) said sequence of N bits (x̂ 0 x̂ 1 ... x̂ N-1 ) from all the complete candidate sequences.

Abstract translation: 用于估计与接收的M个数字数据序列（r0r1 ... rM-1）相对应的N位序列（x / 0x / 1 ... x / N-1） 。 该方法包括以下步骤：从包括MRS参考数字数据（s0s1 ... sMRS-1）的2个NRS减少的参考序列的缩减参考序列空间中确定（31）MRS数字数据的候选序列，MRS低于 M和2 低于或等于2 ; 使用剩余的参考符号组成（32）每个候选序列，以获得M个数字数据的至少一个完整候选序列; 以及从所有完整的候选序列确定（33）所述N个比特序列（x / 0 x / 1 ... x / N-1）。

公开(公告)号：EP1506653A2

公开(公告)日：2005-02-16

申请号：EP03724678.2

申请日：2003-05-19

Applicant: STMicroelectronics N.V. ,  STMicroelectronics Belgium N.V.

Inventor： PISONI, Fabio ,  HUG, Roland ,  BONAVENTURA, Marco

IPC: H04L27/26

CPC classification number: H04B3/23 ,  H04L25/03012 ,  H04L25/03159 ,  H04L27/2647

Abstract: An equalizer for a multi carrier transmission system, converts a transmitted multi carrier signal into sampled frequency domain signals, and suppresses time domain delay dispersion, on the sampled frequency domain signals. It exploits circulant decomposition of a Toeplitz matrix to enable the computationally heavy evaluation of a matrix multiplied by a vector, to be avoided. Increased precision arises from the frequency domain processing being equivalent to a longer time domain FIR filter than is normally practical. The amount of compensation for different carriers can be adjusted, which can lead to increased precision.

公开(公告)号：EP1488336A2

公开(公告)日：2004-12-22

申请号：EP03713862.5

申请日：2003-03-04

Applicant: STMicroelectronics, N.V.

Inventor： NORDSWORTHY, Steven, R.

IPC: G06F17/20

CPC classification number: H04B1/04 ,  H03M3/332 ,  H03M3/424 ,  H03M3/436

Abstract: An Nth-order shaping coder with multi-level quantization and dithered quantizer. The coder (500) is inherently stable and produces a purely white quantization error spectrum. In one exemplary embodiment, the coder is first order, and an improved dither scheme is employed including applying a M-times, e.g. M=2, sample-and-hold to the dither sequence, effectively holding a constant dither for multiple clock cycles. This advantageously results in a reduction of instances where the quantizer jumps over two quantization intervals in one clock cycle without first passing through zero for one clock cycle. Methods for implementing the shaping coder are also disclosed.

公开(公告)号：EP1062760B1

公开(公告)日：2004-11-24

申请号：EP99907994.0

申请日：1999-02-17

Applicant: STMicroelectronics N.V.

Inventor： ISAKSSON, Mikael ,  BENGTSSON, Daniel ,  SJÖBERG, Frank ,  ÖDLING, Per c/o Bo Ödling ,  NILSSON, Rickard ,  BAHLENBERG, Gunnar ,  JOHANSSON, Magnus ,  OLSSON, Lennart ,  ÖKVIST, Göran

IPC: H04L5/06 ,  H04L27/26

CPC classification number: H04L5/143 ,  H04L27/2607 ,  H04L27/2626 ,  H04L27/2647

Abstract: Zipper is a time-synchronized frequency-division duplex implementation of discrete multi tone (DMT) modulation. Two communicating Zipper modems transmit DMT symbols simultaneously with a common clock. The Zipper scheme implies that every carrier, in the total set of carriers in the DMT signal, is exclusively chosen to be used for either the up-stream or the down-stream direction. When all transmitters are time synchronized, the near end cross-talk (NEXT) and near end echoes injected into the received signal are orthogonal to the desired signal. The present invention provides s telecommunications transmission system using zipper and having at least two VDSL systems. Each VDSL system comprises a pair of zipper modems communicating over a cable transmission path. The two VDSL systems employ a common cable. The telecommunications transmission system is adapted to: handle zipper transmissions transmitted over the common cable; at least partly mitigate NEXT; and permit transmissions in a first VDSL system which are asynchronous with transmissions in a second VDSL system.

公开(公告)号：EP1451874A2

公开(公告)日：2004-09-01

申请号：EP02791607.1

申请日：2002-12-04

Applicant: STMicroelectronics N.V.

Inventor： LULE, Tarek

IPC: 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.

公开(公告)号：EP1437827A1

公开(公告)日：2004-07-14

申请号：EP03290065.6

申请日：2003-01-10

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

Inventor： Cerisier, Patrick ,  Cesura, Giovanni

IPC: H03F3/217 ,  H03F3/21

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

Abstract: Le dispositif d'amplification de puissance, comporte une entrée pour recevoir un signal ayant une bande fréquentielle utile (BE), et des moyens d'amplification de puissance du type delta-sigma (MAP). Les moyens d'amplification de puissance du type delta-sigma (MAP) présentent un ordre supérieur ou égal à un dans la bande utile du signal et un ordre supérieur ou égal à un hors de ladite bande utile.

Abstract translation: 该装置具有用于接收具有有用频带的信号的输入端和一个Δ-Σ型功率放大单元。 功率放大单元在信号的带内以及信号的带外是类型等于或高于1的顺序。 频率选择器调谐位于带内和带外信号的频率。 无线通信系统还包括独立声明。

公开(公告)号：EP1414208A1

公开(公告)日：2004-04-28

申请号：EP02079374.1

申请日：2002-10-21

Applicant: STMicroelectronics N.V.

Inventor： Vanderperren, Yves ,  Dehaene, Wim

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2675

Abstract: A receiver is disclosed for time synchronization and frequency offset correction using a training sequence with a periodic structure (like e.g. in HIPERLAN/2,DVB or DAB). To this purpose the auto-correlation of the received signal is calculated. Coarse time synchronization is performed by analysing the amplitude and/or phase of the auto-correlation signal, e.g. to detect peaks or some characteristic jumps in the amplitude or the phase curve. Fine time synchronization is performed by cross-correlation of the received signal with the training sequence and by detection of some characteristic pattern in the amplitude of the cross-correlation signal. If the difference of the results of coarse and fine time synchronization exceeds a certain threshold, a "synchronization failure" signal is outputted. The frequency offset correction is carried out in two steps: first from the auto-correlation of short training sequence the sign (direction) of the frequency offset is determined, then from the auto-correlation of long training sequence the accurate frequency offset is obtained.

Abstract translation: 接收机具有用于对来自频率偏移估计单元的频率偏移的接收信号进行补偿以形成补偿的接收信号的单元（17），其中频率偏移估计单元包括用于确定相移的部分。 确定单元通过具有已知训练序列的补偿接收信号的互相关（19）获得接收信号的定时参考。 独立权利要求还包括以下内容：（a）包括接收机的正交频分复用（OFDM）电信系统（b）用于处理包括用已知训练序列调制的载波的接收信号的方法（c） 从包括用已知训练序列调制的载波的接收信号获得定时参考。