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

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。

2. 发明申请

WO2005117379A1 A METHOD FOR SIGNAL PROCESSING AND A SIGNAL PROCESSOR IN AN OFDM SYSTEM 审中-公开
标题翻译：信号处理的方法和OFDM系统中的信号处理器
公开(公告)号：WO2005117379A1
公开(公告)日：2005-12-08
申请号：PCT/IB2005/051652
申请日：2005-05-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BAGGEN, Constant, P., M., J. , HUSEN, Sri, A. , STASSEN, Maurice, L., A. , TSANG, Hoi, Y.
发明人： BAGGEN, Constant, P., M., J. , HUSEN, Sri, A. , STASSEN, Maurice, L., A. , TSANG, Hoi, Y.
IPC分类号： H04L25/03
CPC分类号： H04L25/022 , H04L25/03159 , H04L27/2647 , H04L2025/03414 , H04L2025/03496 , H04L2025/03503 , H04L2025/03611
摘要： A method of signal processing and a signal processor for a receiver for OFDM encoded digital signals. OFDM encoded digital signals are transmitted as data symbol subcarriers in several frequency channels. A subset of the sub-carriers is in the form of pilot subcarriers having a pilot value (a p ) known to the receiver. The method comprises estimation of a channel transfer function ( H ) and a derivative of the channel transfer function ( H’ ) by means of a channel estimation scheme from a received signal ( y ). Then, an estimation of data ( a ) is performed from the received signal ( y ) and the channel transfer function ( H ). Finally, an estimation of a cleaned received signal (y2 ) is performed from the data ( a ), the derivative of the channel transfer function (H') and the received signal ( y ) by removal of inter-carrier interference (ICI), by taking into account at least one of a previous and a future OFDM symbol, followed by an iteration of the above-mentioned estimations.
摘要翻译：一种用于OFDM编码数字信号的接收机的信号处理方法和信号处理器。 OFDM编码的数字信号作为多个频率信道中的数据符号子载波发送。子载波的子集是具有接收机已知的导频值（ap）的导频子载波的形式。该方法包括通过来自接收信号（y）的信道估计方案估计信道传递函数（H）和信道传递函数（H'）的导数。然后，从接收信号（y）和信道传递函数（H）执行数据（a）的估计。最后，通过去除载波间干扰（ICI），从数据（a），信道传递函数（H'）的导数和接收信号（y）执行清除的接收信号（y2）的估计，通过考虑前一个和未来OFDM符号中的至少一个，接着是上述估计的迭代。

3. 发明申请

WO2004100407A2 COMMUNICATION SYSTEM 审中-公开
标题翻译：通讯系统
公开(公告)号：WO2004100407A2
公开(公告)日：2004-11-18
申请号：PCT/IB2004050590
申请日：2004-05-05
申请人： KONINKL PHILIPS ELECTRONICS NV , DAMINK PAULUS H A , COLAK SEL B , DRAAIJER MAURICE H J , STASSEN MAURICE L A
发明人： DAMINK PAULUS H A , COLAK SEL B , DRAAIJER MAURICE H J , STASSEN MAURICE L A
IPC分类号： G03B21/56 , G08G1/017 , G08G1/04 , G08G1/0967 , G09F19/18 , H04B7/02 , H04B7/06 , H04B10/10 , H04L1/06
CPC分类号： G08G1/04 , G08G1/0175
摘要： In an optical communication method, an accurate common clock signal (GPS) is provided to a sender (10) and a receiver (20). In the sender, the common clock signal is received, a first clock signal (CLK1) is generated on the basis of said common clock signal, a carrier wave with a predetermined carrier frequency (f) is generated using said clock signal as timing reference, the carrier wave is modulated with a data signal, and the modulated carrier wave is transmitted using a light beam (13). In the receiver, the common clock signal is received, a reference signal having the same frequency (f) as the carrier frequency is generated on the basis of said common clock signal, said optical beam (13) is received, a detection signal is derived from the optical beam, the receiver is tuned to the predetermined carrier frequency (f), and the data signal is derived from the detection signal.
摘要翻译：在光通信方法中，将准确的公共时钟信号（GPS）提供给发送器（10）和接收器（20）。在发送器中，接收公共时钟信号，基于所述公共时钟信号产生第一时钟信号（CLK1），使用所述时钟信号作为定时参考产生具有预定载波频率（f）的载波，使用数据信号调制载波，并且使用光束（13）传输调制的载波。在接收机中，接收公共时钟信号，基于所述公共时钟信号生成与载波频率相同的频率（f）的参考信号，接收所述光束（13），导出检测信号从光束将接收机调谐到预定的载波频率（f），并且从检测信号导出数据信号。

4. 发明申请

WO2004100105A1 TRAFFIC INFORMATION SYSTEM FOR CONVEYING INFORMATION TO DRIVERS 审中-公开
标题翻译：用于向驾驶员传达信息的交通信息系统
公开(公告)号：WO2004100105A1
公开(公告)日：2004-11-18
申请号：PCT/IB2004/050587
申请日：2004-05-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , DRAAIJER, Maurice, H., J. , DAMINK, Paulus, H., A. , STASSEN, Maurice, L., A. , COLAK, Sel, B.
发明人： DRAAIJER, Maurice, H., J. , DAMINK, Paulus, H., A. , STASSEN, Maurice, L., A. , COLAK, Sel, B.
IPC分类号： G08G1/0967
CPC分类号： G08G1/04 , G08G1/0175
摘要： A versatile traffic information system (1) comprises: a light source (10), designed for generating a relative narrow, intense light beam (11); housing means (100) adapted for being mounted adjacent or above a road surface (3), accommodating the light source (10), having a beam exit window (101) for allowing the light beam (11) to exit the housing; a controllable beam deflection system (20), capable of changing a direction of the light beam (11) towards a projection area (2) on the road surface (3) in order to form a relatively small light spot (12) on the projection area (2); - a control circuit (30) for controlling the controllable beam deflection system (20) such as to effectively make the light spot (12) draw a predefined pattern (4) on the projection area (2).
摘要翻译：多功能交通信息系统（1）包括：设计用于产生相对较窄的强光束（11）的光源（10）; 适于安装在路面相邻或上方的容纳光源（10）的壳体装置（100），具有用于允许光束（11）离开壳体的光束出射窗（101）; 可控制的光束偏转系统（20），其能够朝向路面（3）上的投影区域（2）改变光束（11）的方向，以在投影面上形成相对较小的光斑（12）区域（2）; - 控制电路（30），用于控制可控光束偏转系统（20），以便有效地使光斑（12）在投影区域（2）上绘制预定图案（4）。

5. 发明申请

WO2005117380A1 A METHOD FOR SIGNAL PROCESSING AND A SIGNAL PROCESSOR IN AN OFDM SYSTEM 审中-公开
标题翻译：信号处理的方法和OFDM系统中的信号处理器
公开(公告)号：WO2005117380A1
公开(公告)日：2005-12-08
申请号：PCT/IB2005/051684
申请日：2005-05-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BAGGEN, Constant, P., M., J. , HUSEN, Sri, A. , STASSEN, Maurice, L., A. , TSANG, Hoi, Y.
发明人： BAGGEN, Constant, P., M., J. , HUSEN, Sri, A. , STASSEN, Maurice, L., A. , TSANG, Hoi, Y.
IPC分类号： H04L25/03
CPC分类号： H04L25/03159 , H04L25/0234 , H04L25/0236 , H04L2025/03414 , H04L2025/03605
摘要： A method of signal processing for a receiver for OFDM encoded digital signals. The OFDM encoded digital signals are transmitted as data symbol sub-carriers in several frequency channels. A subset of the sub-carriers is in the form of pilot sub-carriers having a pilot value (a p ) known to the receiver. First, a received signal ( y o) is obtained, followed by a first estimation of a pilot channel transfer function ( H o ) at pilot sub-carriers from said received signal ( y o ) and said known pilot values (a p ). Then a second estimation of a channel transfer function ( H 1 ) is performed at all sub-carriers from said pilot channel transfer function ( H o ) . A third estimation of a derivative ( H' 1) of the channel transfer function ( H 1 ) is performed from the channel transfer function ( H 1 ) and a channel transfer function ( H 3 ) from a past OFDM symbol. Finally, a fourth estimation of a cleaned received signal ( y 1 ) is performed from said derivative ( H' 1 ) , said received signal (y o ) and said pilot values (a p ) by removal of pilot-induced interference.
摘要翻译：一种用于OFDM编码数字信号的接收机的信号处理方法。 OFDM编码数字信号作为多个频率信道中的数据符号子载波发送。子载波的子集是具有接收机已知的导频值（ap）的导频子载波的形式。首先，获得接收信号（哟），然后从导频子载波对所述接收信号（哟）和所述已知导频值（ap）进行导频信道传递函数（Ho）的第一估计。然后，在来自所述导频信道传递函数（Ho）的所有子载波处执行信道传递函数（H1）的第二估计。从信道传递函数（H1）和来自过去的OFDM符号的信道传递函数（H3）执行信道传递函数（H1）的导数（H'1）的第三估计。最后，通过去除引导引起的干扰，从所述导数（H'1），所述接收信号（yo）和所述导频值（ap）执行清除的接收信号（y1）的第四估计。

6. 发明申请

WO2004100103A1 EVENT DETECTION SYSTEM 审中-公开
标题翻译：事件检测系统
公开(公告)号：WO2004100103A1
公开(公告)日：2004-11-18
申请号：PCT/IB2004/050586
申请日：2004-05-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , DRAAIJER, Maurice, H., J. , DAMINK, Paulus, H., A. , STASSEN, Maurice, L., A. , COLAK, Sel, T.
发明人： DRAAIJER, Maurice, H., J. , DAMINK, Paulus, H., A. , STASSEN, Maurice, L., A. , COLAK, Sel, T.
IPC分类号： G08G1/04
CPC分类号： G08G1/04 , G08G1/0175
摘要： An event detection system (100) comprises: a communication network of interconnected nodes (10) and a central control station (200), each node being capable of communicating to at least one adjacent node and/or to the central control station, each node comprising: at least one microphone (11); a GPS receiver (12, 13) providing information regarding its location and providing time information; a processing circuit (17), capable of processing the microphone signals, the processing circuit being designed to detect the occurrence of predetermined characteristic sound patterns, and if the occurrence of a predetermined characteristic sound pattern is detected, to communicate the detected event to the central station, together with information regarding location of the node and time of detection; wherein the central station is designed to process the information received from the nodes and to determine the location of the audio source and the occurrence time of the event.
摘要翻译：事件检测系统（100）包括：互连节点（10）和中央控制站（200）的通信网络，每个节点能够与至少一个相邻节点和/或中央控制站通信，每个节点包括：至少一个麦克风（11）; 提供关于其位置的信息并提供时间信息的GPS接收器（12,13）; 处理电路（17），其能够处理麦克风信号，处理电路被设计为检测预定特征声音图案的发生，并且如果检测到预定特征声音图案的出现，则将检测到的事件传送到中央站点，以及关于节点位置和检测时间的信息; 其中中心站被设计成处理从节点接收的信息并且确定音频源的位置和事件的发生时间。

7. 发明申请

WO2004100397A1 DATA COMMUNICATION SYSTEM 审中-公开
标题翻译：数据通信系统
公开(公告)号：WO2004100397A1
公开(公告)日：2004-11-18
申请号：PCT/IB2004/050588
申请日：2004-05-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , COLAK, Sel, B. , DRAAIJER, Maurice, H., J. , DAMINK, Paulus, H., A. , STASSEN, Maurice, L., A.
发明人： COLAK, Sel, B. , DRAAIJER, Maurice, H., J. , DAMINK, Paulus, H., A. , STASSEN, Maurice, L., A.
IPC分类号： H04B7/06
CPC分类号： G08G1/04 , G08G1/0175
摘要： A communication system (1) comprises a plurality of at least three transmitters (11, 12, 13, 14). A data signal (S) is provided to all transmitters. Each transmitter transmits data signal fragments (31, 32, 33, 34). The data transmissions by the various transmitters are accurately synchronised, such that, on arrival in a target space (2), the various data signal fragments (31, 32, 33, 34) have an accurate timing relationship. Only a receiver (100) located at the target location will receive the various data signal fragments (31, 32, 33, 34) with the correct mutual timings.
摘要翻译：通信系统（1）包括多个至少三个发射器（11,12,13,14）。数据信号（S）被提供给所有发射机。每个发射机发射数据信号片段（31,32,33,34）。各种发射机的数据传输被精确地同步，使得在到达目标空间（2）时，各种数据信号片段（31,32,33,34）具有准确的定时关系。只有位于目标位置的接收机（100）将以正确的相互定时接收各种数据信号片段（31,32,33,34）。

8. 发明申请

WO2007072348A2 A METHOD FOR SIGNAL RECEPTION 审中-公开
标题翻译：一种信号接收方法
公开(公告)号：WO2007072348A2
公开(公告)日：2007-06-28
申请号：PCT/IB2006/054842
申请日：2006-12-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SIGNALION GMBH , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , 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
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。

9. 发明申请

WO2006134578A1 RECEIVER APPARATUS FOR RECEIVING A MULTICARRIER SIGNAL 审中-公开
标题翻译：用于接收多媒体信号的接收装置
公开(公告)号：WO2006134578A1
公开(公告)日：2006-12-21
申请号：PCT/IB2006/051940
申请日：2006-06-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BAGGEN, Constant, P., M., J. , HUSEN, Sri, A. , STASSEN, Maurice, L., A. , TSANG, Hoi, Y.
发明人： BAGGEN, Constant, P., M., J. , HUSEN, Sri, A. , STASSEN, Maurice, L., A. , TSANG, Hoi, Y.
IPC分类号： H04L27/26 , H04L25/02
CPC分类号： H04L27/2688 , H04L25/022 , H04L27/2665 , H04L27/2691
摘要： In time varying OFDM systems, the effect of a non-ideal time synchronization may lead to a poor performance in terms of decoded average bit error rate versus the signal- to-noise ratio. The receiver apparatus (3) of the transmission system (1) estimates a subcarrier-dependent channel frequency response and determines an intercarrier interference spreading on the basis of a cyclic shift in symbols carried by the subcarriers. Therewith, an intercarrier interference included in an OFDM signal can be canceled, even in case of a non- ideal time synchronization.
摘要翻译：在时变OFDM系统中，非理想时间同步的影响可能导致在解码的平均误码率与信噪比方面的差的性能。传输系统（1）的接收机装置（3）根据子载波相关的信道频率响应来估计，并且基于子载波承载的符号中的循环移位来确定载波间干扰扩展。因此，即使在非理想时间同步的情况下，也可以消除OFDM信号中包含的载波间干扰。

10. 发明申请

WO2004100104A3 PUBLIC SERVICE SYSTEM 审中-公开
标题翻译：公共服务系统
公开(公告)号：WO2004100104A3
公开(公告)日：2005-01-06
申请号：PCT/IB2004050589
申请日：2004-05-05
申请人： KONINKL PHILIPS ELECTRONICS NV , COLAK SEL B , DRAAIJER MAURICE H J , DAMINK PAULUS H A , STASSEN MAURICE L A
发明人： COLAK SEL B , DRAAIJER MAURICE H J , DAMINK PAULUS H A , STASSEN MAURICE L A
IPC分类号： G03B21/56 , G08G1/017 , G08G1/04 , G08G1/0967 , G09F19/18 , H04B7/02 , H04B7/06 , H04B10/10 , H04L1/06
CPC分类号： G08G1/04 , G08G1/0175
摘要： A public service system comprises: automatic request recognition means, capable of automatically recognizing a user request, automatic user identification means, capable of automatically identifying the requesting user; automatic authorization means, capable of automatically checking a user's authorisation; a wireless communication network (110) having a plurality of communication nodes (111, 112, 113, 114) capable of direct or indirect communication with each other;a central controller (120; 220) associated with at least one of said communication nodes; and request receiving means associated with at least one of said communication nodes.
摘要翻译：公共服务系统包括：能够自动识别用户请求的自动请求识别装置，能够自动识别请求用户的自动用户识别装置; 自动授权手段，能够自动检查用户的授权; 具有能够彼此直接或间接通信的多个通信节点（111,112,113,114）的无线通信网络（110）;与所述通信节点中的至少一个相关联的中央控制器（120; 220）以及请求与所述通信节点中的至少一个相关联的接收装置。

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