专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009010916A3 DRIVING A LIGHT SOURCE 审中-公开
标题翻译：驱动光源
公开(公告)号：WO2009010916A3
公开(公告)日：2009-03-12
申请号：PCT/IB2008052819
申请日：2008-07-14
申请人： KONINKL PHILIPS ELECTRONICS NV , BAGGEN CONSTANT P M J , HEKSTRA ANDRIES P , LINNARTZ JOHAN P M G
发明人： BAGGEN CONSTANT P M J , HEKSTRA ANDRIES P , LINNARTZ JOHAN P M G
IPC分类号： H05B37/02
CPC分类号： H05B37/0272 , H04B10/1141 , H04B10/116 , H04L25/4904 , H05B37/0245 , H05B37/0254
摘要： A method for driving a light source (11, 12, 13) is described, wherein the light source is alternately switched ON and OFF in an ON/OFF pattern, wherein the duty cycle of the ON/OFF pattern is varied to vary the average light intensity of the light source, and wherein the shape of the ON/OFF pattern is varied to transmit data. Thus, a control signal for the light source comprises data information as well as duty cycle information. The duty cycle is varied within a range from almost zero to almost 100%, and data is varied and transmitted without affecting the duty cycle.
摘要翻译：描述了用于驱动光源（11,12,13）的方法，其中光源在ON / OFF模式中交替地接通和断开，其中ON / OFF模式的占空比被改变以改变平均值光源的光强度，并且其中ON / OFF图案的形状被改变以传输数据。因此，用于光源的控制信号包括数据信息以及占空比信息。占空比在几乎零到几乎100％的范围内变化，并且数据被变化和传输而不影响占空比。

2. 发明申请

WO2007116335A2 DATA PROCESSING CIRCUIT AND A METHOD WITH ERASURE BASED ERROR CORRECTION OF A DEINTERLEAVED SIGNAL 审中-公开
标题翻译：数据处理电路和一种基于消除信号的基于误差校正的方法
公开(公告)号：WO2007116335A2
公开(公告)日：2007-10-18
申请号：PCT/IB2007051121
申请日：2007-03-29
申请人： KONINKL PHILIPS ELECTRONICS NV , EGNER SEBASTIAN , BAGGEN CONSTANT P M J , KOPPELAAR ARIE G C , TOLHUIZEN LUDOVICUS M G M
发明人： EGNER SEBASTIAN , BAGGEN CONSTANT P M J , KOPPELAAR ARIE G C , TOLHUIZEN LUDOVICUS M G M
CPC分类号： H03M13/00
摘要： A series of data symbols is received. Unreliable units in the series of data symbols are detected on a per unit basis. A block of the data symbols that comprises a plurality of units is stored in a memory for de-interleaving. The information about unreliability has been found to have more redundancy than the data symbols. This used to reduce the amount of information stored for de-interleaving. Respective compressed reliability symbols are formed for successive parts of the series during reception of the series, using compressive coding of combinations of reliability information for respective ones of the units. The data symbols of the block are read from the memory in a de-interleaved order. The compressed reliability symbols are decompressed out of order, according to the de- interleaved order, in combination with said reading according to the de-interleaved order.
摘要翻译：接收一系列数据符号。一系列数据符号中不可靠的单位是以单位为单位进行检测的。包含多个单元的数据符号块被存储在用于解交织的存储器中。已经发现关于不可靠性的信息具有比数据符号更多的冗余。这用于减少存储用于解交织的信息量。使用对于各个单元的可靠性信息的组合的压缩编码，在接收串联期间，为串联的连续部分形成相应的压缩可靠性符号。以解交织的顺序从存储器读取块的数据符号。压缩的可靠性符号根据解交织顺序按照解交织顺序结合所述读取而按顺序解压缩。

3. 发明申请

WO03049297A2 SIMPLE DECODING METHOD AND APPARATUS 审中-公开
标题翻译：简单的解码方法和设备
公开(公告)号：WO03049297A2
公开(公告)日：2003-06-12
申请号：PCT/IB0205016
申请日：2002-11-26
申请人： KONINKL PHILIPS ELECTRONICS NV , BAGGEN CONSTANT P M J
发明人： BAGGEN CONSTANT P M J
IPC分类号： G06F11/10 , G11B20/10 , G11B20/18 , H03M13/15 , H03M13/37
CPC分类号： H03M13/1515 , G11B20/18 , H03M13/2927 , H03M13/37
摘要： The invention relates to a method of decoding possibly mutilated codewords (r) of a code (C) into information words (m') comprising information symbols (m'>1 2 k 1 2 k 1 2 k 1
摘要翻译：本发明涉及一种将代码（C）的可能残缺的码字（r）解码成包括信息符号（m'> 1，...，m， k），所述信息字（m）被编码为所述代码（C）的码字（c）。为了提供一种用于解码这种代码的方法和装置，而不需要大大偏离用于解码标准里德 - 所罗门码的标准方法和装置，根据本发明提出了一种解码方法，包括以下步骤：：将所述可能残缺的码字（r）解码成码字（r'），从所述码字（r'）重建信息符号（m'> 1，m'> 2，...，m'> k < 将解码之前已知的信息符号（m> 1 <）与所述重建信息符号（m'> 1，...，m'> 2 <，...，m'> k'进行比较，比较结果。

4. 发明申请

WO2007083258A3 ESTIMATION OF LENGTH OF CHANNEL IMPULSE RESPONSE 审中-公开
标题翻译：信道脉冲响应长度的估计
公开(公告)号：WO2007083258A3
公开(公告)日：2007-11-01
申请号：PCT/IB2007050117
申请日：2007-01-15
申请人： KONINKL PHILIPS ELECTRONICS NV , BAGGEN CONSTANT P M J , HUSEN SRI A , FILIPPI ALESSIO
发明人： BAGGEN CONSTANT P M J , HUSEN SRI A , FILIPPI ALESSIO
IPC分类号： H04L25/02
CPC分类号： H04L25/0216 , H04L25/0208 , H04L25/022 , H04L27/2647
摘要： In a receiver for processing OFDM encoded signals, wherein the OFDM encoded digital signals are transmitted by means of a symbol in each of subcarrier frequency channels, with at least some of said subcarriers containing user data symbols, an initial estimate of a channel frequency response is formed from magnitudes of user data symbols received in those subcarriers. Then, a correlation function of a channel impulse response is estimated by performing an inverse Fourier transform on the initial estimate of the channel frequency response, and the length of the channel impulse response is estimated by examining peaks in the estimated correlation function of the channel impulse response.
摘要翻译：在用于处理OFDM编码信号的接收机中，其中OFDM编码的数字信号通过每个子载波频率信道中的符号来传输，并且至少一些所述子载波包含用户数据符号，信道频率响应的初始估计是由在这些副载波中接收的用户数据符号的大小形成。然后，通过对信道频率响应的初始估计进行傅立叶逆变换来估计信道脉冲响应的相关函数，并且通过检查信道脉冲的估计相关函数中的峰值来估计信道脉冲响应的长度响应。

5. 发明申请

WO2007072348A3 A METHOD FOR SIGNAL RECEPTION IN A OFDM SYSTEM 审中-公开
标题翻译： OFDM系统中信号接收的方法
公开(公告)号：WO2007072348A3
公开(公告)日：2007-10-18
申请号：PCT/IB2006054842
申请日：2006-12-14
申请人： KONINKL PHILIPS ELECTRONICS NV , SIGNALION GMBH , PHILIPS INTELLECTUAL PROPERTY , BAGGEN CONSTANT P M J , FILIPPI ALESSIO , HUSEN SRI A , STASSEN MAURICE L A , AUE VOLKER , BURY ANDREAS , FLIESS THOMAS , CASAMAJOU YANN , PIROT FREDERIC
发明人： BAGGEN CONSTANT P M J , FILIPPI ALESSIO , HUSEN SRI A , STASSEN MAURICE L A , AUE VOLKER , BURY ANDREAS , FLIESS THOMAS , CASAMAJOU YANN , PIROT FREDERIC
IPC分类号： H04L25/02
CPC分类号： H04L27/261
摘要： In an OFDM mobile communications system, an algorithm for forming a preliminary estimate of the channel on pilot subcarriers is carried out. Based on this preliminary estimate, a channel property is estimated. This channel property is then used to decide whether to enter a mobile receiver mode or a stationary receiver mode. For example, in the mobile mode channel estimation is performed using only pilot symbols from the current symbol period, while in the static mode channel estimation is performed using pilot symbols from the current symbol period and pilot symbols from other symbol periods.
摘要翻译：在OFDM移动通信系统中，执行用于形成导频子载波上的信道的初步估计的算法。根据这个初步估计，估计一个频道属性。然后，该频道属性用于决定是否进入移动接收机模式或静态接收机模式。例如，在移动模式中，仅使用来自当前符号周期的导频符号进行信道估计，而在静态模式中，使用来自当前符号周期的导频符号和来自其他符号周期的导频符号来执行信道估计。

6. 发明申请

WO0243292A2 METHOD FOR GENERATING A SERIAL BITSTREAM COMPRISING INFORMATION FOR SYNCHRONIZATION 审中-公开
标题翻译：用于产生包含同步信息的串行比特的方法
公开(公告)号：WO0243292A2
公开(公告)日：2002-05-30
申请号：PCT/EP0113010
申请日：2001-11-06
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： EGNER SEBASTIAN , BAGGEN CONSTANT P M J , VAN DIJK MARTEN E
IPC分类号： G11B27/30 , H04J3/06 , H04L7/00
CPC分类号： H04J3/0605 , G11B27/3027 , G11B2220/2545 , G11B2220/2562
摘要： The invention relates to a method for generating a serial bitstream comprising information for synchronizing the serial bitstream internally and/or to another serial bitstream and/or for determining the position in the serial bitstream wherein a fixed code pattern is embedded in the serial bitstream. In order to retrieve a synchronization information or to determine the position in the serial bitstream very fast after the start of reading the serial bitstream and at any time during reading the serial bitstream it is provided according to the invention that the code pattern is periodically repeated in the serial bitstream and that any sequence of a fixed number of successive bits of the code pattern forms a unique code word allowing for synchronization and/or position determination, even under the occurrence of bit errors. The invention also refers to a corresponding device, to a binary signal comprising a serial bitstream, to a record carrier carrying such a binary signal and to a method and device for reading such a binary signal.
摘要翻译：本发明涉及一种用于产生串行比特流的方法，其包括用于在串行比特流内部和/或另一个串行比特流同步串行比特流和/或用于确定串行比特流中的位置的信息，其中固定码型嵌入在串行比特流中。为了在读取串行比特流之后并且在读取串行比特流期间的任何时间，检索同步信息或确定串行比特流中的位置非常快，根据本发明提供了代码模式周期性地重复串行比特流，并且代码模式的固定数量的连续比特的任何序列形成允许同步和/或位置确定的唯一码字，即使在比特错误的发生下也是如此。本发明还涉及一种对应于包括串行比特流的二进制信号到携带这种二进制信号的记录载体的装置以及用于读取这种二进制信号的方法和装置。

7. 发明申请

WO9962212A3 TRANSMISSION SYSTEM FOR TRANSMITTING A MAIN SIGNAL AND AN AUXILIARY SIGNAL 审中-公开
标题翻译：用于发送主信号和辅助信号的传输系统
公开(公告)号：WO9962212A3
公开(公告)日：2000-02-03
申请号：PCT/IB9900919
申请日：1999-05-20
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS SVENSKA AB
发明人： BAGGEN CONSTANT P M J , KOPPELAAR ARIE G C , HEKSTRA EWA B
IPC分类号： H03M13/35 , H04L1/00 , H04L1/20
CPC分类号： H04L1/007 , H03M13/09 , H03M13/1515 , H03M13/23 , H03M13/353 , H03M13/6362 , H04L1/0009 , H04L1/0014 , H04L1/0025 , H04L1/0039 , H04L1/0041 , H04L1/0072 , H04L1/0075
摘要： In a transmission system with a transmitter (4) coupled to a receiver (6) a main signal (SPEECH INPUT) encoded according to a coding property is transmitted together with an auxiliary signal (AUX). In order to transmit the auxiliary signal without needing additional space in the transmission frame, it is proposed to transmit the auxiliary signal by changing the coding property according to a predetermined sequence. This is done by means of the sequencer (13). In the receiver (6) the decoding of the predetermined sequence is performed by a decoder (31).
摘要翻译：在具有耦合到接收机（6）的发射机（4）的传输系统中，根据编码特性编码的主信号（SPEECH INPUT）与辅助信号（AUX）一起发送。为了在传输帧中不需要额外的空间来发送辅助信号，建议通过根据预定的顺序改变编码特性来发送辅助信号。这通过定序器（13）完成。在接收机（6）中，由解码器（31）执行预定序列的解码。

8. 发明申请

WO0243312A2 A COMMUNICATION SYSTEM HAVING BAD FRAME INDICATOR MEANS FOR RESYNCHRONIZATION PURPOSES 审中-公开
标题翻译：具有用于再现目的的边框指示符的通信系统
公开(公告)号：WO0243312A2
公开(公告)日：2002-05-30
申请号：PCT/EP0113309
申请日：2001-11-14
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： TAORI RAKESH , BAGGEN CONSTANT P M J , GERRITS ANDREAS J
IPC分类号： H04J3/06 , H04L1/00 , H04L1/16 , H04L1/20
CPC分类号： H04L1/208 , H04L1/0041 , H04L1/1671 , H04L1/20
摘要： A communication system (1) comprises a transmitter (2), a receiver (3), and an up/down link communication channel (4, 6) arranged for data communication from the transmitter (2) through the up link communication channel (4) to the receiver (3). The communication system (1) is further arranged to feedback data from the receiver (3) through the down link communication channel (6) to the transmitter (2). The receiver (3) comprises a bad frame indicator (5) for providing a bad frame indication (BFI) upon receipt of a corrupted frame, which is present in synchronized data communicated over the up link communication channel (4); and the transmitter (2) comprises resynchronization means (7) coupled to the down link communication channel (6) for receiving BFI related data and in response thereto recommencing data communication over the up link communication channel (4), in accordance with a resynchronization procedure, which starts from a predetermined state. A fast acting feedback resynchronization procedure for a GSM speech system is presented which prevents substantial error propagation from occurring at the receiver end.
摘要翻译：通信系统（1）包括发射机（2），接收机（3）和布置用于通过上行链路通信信道（4）从发射机（2）进行数据通信的上/下链路通信信道）到接收器（3）。通信系统（1）还被布置为通过下行链路通信信道（6）将数据从接收机（3）反馈到发射机（2）。接收器（3）包括用于在接收到通过上行链路通信信道（4）传送的同步数据中存在的损坏的帧时提供坏帧指示（BFI）的坏帧指示符（5）。并且所述发射机（2）包括耦合到所述下行链路通信信道（6）的再同步装置（7），用于接收BFI相关数据，并且响应于所述重新同步装置根据重新同步过程在所述上行链路通信信道（4）上重新开始数据通信，其从预定状态开始。提出了一种用于GSM语音系统的快速反馈重新同步过程，其防止在接收机端发生大量错误传播。

9. 发明申请

WO9962209A3 TRANSMISSION SYSTEM WITH ADAPTIVE CHANNEL ENCODER AND DECODER 审中-公开
标题翻译：具有自适应通道编码器和解码器的传输系统
公开(公告)号：WO9962209A3
公开(公告)日：2000-01-27
申请号：PCT/IB9900942
申请日：1999-05-25
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS SVENSKA AB
发明人： BAGGEN CONSTANT P M J
IPC分类号： H03M13/35 , H03M13/05 , H04L1/00 , H04L1/20
CPC分类号： H04L1/0014 , H03M13/05 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0028 , H04L1/0057 , H04L1/0072 , H04L1/0075 , H04L1/0079
摘要： In a transmission system comprising a transmitter (4) coupled via a transmission channel (10) to a receiver (6). The transmitter (4) comprises a channel encoder (14) for deriving encoded symbols from source symbols. The receiver (6) comprises a channel decoder (28) for reconstructing the source symbols from the signal received from the transmission channel (10). According to the present invention, the transmitter (4) comprises a separate encoder for coding and transmitting a coding property used in the channel encoder (14) to the receiver (6). The receiver (6) is arranged for receiving the encoded coding property from the transmission medium, and the separate channel decoder (26) is arranged for decoding the encoded coding property. The coding property provided by the separate channel decoder (26) is passed to setting means (27) in the channel decoder (28) for setting the coding property of the channel decoder (28).
摘要翻译：在包括经由传输信道（10）耦合到接收机（6）的发射机（4）的传输系统中。发射机（4）包括用于从源符号导出编码符号的信道编码器（14）。接收器（6）包括信道解码器（28），用于从传输信道（10）接收的信号中重构源码元。按照本发明，发射机（4）包括一个单独的编码器，用于编码和发送信道编码器（14）中使用的编码特性到接收机（6）。接收器（6）被设置用于从传输介质接收编码的编码属性，并且单独的信道解码器（26）被设置用于对编码的编码属性进行解码。由分离信道解码器（26）提供的编码性质被传送到信道解码器（28）中的设置装置（27），用于设置信道解码器（28）的编码属性。

10. 发明申请

WO9962185A3 TRANSMISSION SYSTEM HAVING A SIMPLIFIED CHANNEL DECODER 审中-公开
标题翻译：具有简化通道解码器的传输系统
公开(公告)号：WO9962185A3
公开(公告)日：2000-01-27
申请号：PCT/IB9900925
申请日：1999-05-20
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS SVENSKA AB
发明人： BAGGEN CONSTANT P M J , KOPPELAAR ARIE G C
IPC分类号： H03M13/23 , H03M13/39 , H03M13/41 , H04L1/00
CPC分类号： H03M13/6502 , H03M13/4123 , H03M13/4169
摘要： In a tailbiting convolutional encoder the encoder (12) is initialized with a sequence of symbols corresponding to the final symbols of a sequence to be encoded, resulting in that the begin state and the final state of the encoder are the same. The problem of the convolutional code obtained by such a coder is that it requires substantial computational resources to decode it. In the simplified decoder according to the invention, the decoding process is extended by a plurality of trellis sections to a length N + nu . At the final trellis section, the state with the largest path metric is selected as the best state. This best state is used as starting point for a trace back operation to find an earlier state at N trellis section before the final trellis section. The earlier state found there is regarded as correct, having as consequence that the trellis should terminate also in said state. By performing a trace back from said state the source symbols can be found.
摘要翻译：在尾带卷积编码器中，编码器（12）用对应于要编码的序列的最终符号的符号序列初始化，导致编码器的开始状态和最终状态相同。由这样的编码器获得的卷积码的问题是它需要大量的计算资源来对其进行解码。在根据本发明的简化解码器中，解码过程被多个网格部分扩展到长度N + nu。在最后的网格部分，选择具有最大路径度量的状态作为最佳状态。该最佳状态用作追溯操作的起始点，以便在最后的网格部分之前的N网格部分找到较早的状态。较早的国家发现有被认为是正确的，结果是网格也应该在所述状态下终止。通过从所述状态执行跟踪，可以找到源符号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式