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    CONTENTION RESOLUTION FOR CATV WITH REDUCED WAITING TIME VARIANCE
    3.
    发明公开
    CONTENTION RESOLUTION FOR CATV WITH REDUCED WAITING TIME VARIANCE 审中-公开
    竞争解决方案具有减少等待VAR CATV

    公开(公告)号：EP1438837A2

    公开(公告)日：2004-07-21

    申请号：EP02767787.1

    申请日：2002-09-12

    申请人： Koninklijke Philips Electronics N.V.

    发明人： DENTENEER, Theodorus, J., J. ,  HEKSTRA-NOWACKA, Ewa, B. ,  PRONK, Serverius, P., P. ,  TOLHUIZEN, Ludovicus, M., G., M.

    IPC分类号： H04N5/00

    CPC分类号： H04L47/25 ,  H04N7/17309 ,  H04N21/2221 ,  H04N21/2385 ,  H04N21/2393 ,  H04N21/26216

    摘要： The invention relates to a method and a system that are used during tree-search or stack contention-resolution protocols that resolve message transmission collisions between for example Cable Television stations (CaTV). The CaTV broadband data network provides two-way communication between subscriber computer systems (102, 104, 106, 110, 112, 114) and the CaTV head-end (100). In order to resolve collisions between messages sent by CaTVs a method of transmitting a plurality of messages, the plurality of messages being transmitted over a communication channel is provided. This method comprises: requesting to submit a first request for transmitting a first message of the plurality of messages and to submit a second request for transmitting a second message of the plurality of messages until there is no first collision detected between the submitted first request and the submitted second request upon receipt of the submitted first and second request. Before there is no first collision detected between the submitted first request and the submitted second request, it is requested to submit a third request for transmitting a third message of the plurality of messages and to submit a fourth request for transmitting a fourth message of the plurality of messages. However, requesting to re-submit the third request for transmitting the third message and to re-submit the fourth request for transmitting the fourth message if a second collision is detected between the submitted third request and the submitted second request upon receipt of the submitted third and second request is delayed until there is no first collision detected between the submitted first request and the submitted second request.

    ESTIMATION OF TIMESTAMPS USING BAYESIAN KALMAN FILTERING FOR ACCURATE TRACKING AND SMOOTHING
    4.
    发明公开
    ESTIMATION OF TIMESTAMPS USING BAYESIAN KALMAN FILTERING FOR ACCURATE TRACKING AND SMOOTHING 审中-公开
    时间标签随着对准确时间GRID和晚上卡尔曼滤波和贝叶斯预测预报

    公开(公告)号：EP1155572A1

    公开(公告)日：2001-11-21

    申请号：EP00976008.3

    申请日：2000-11-06

    申请人： Koninklijke Philips Electronics N.V.

    发明人： DENTENEER, Theodorus, J., J. ,  DIJKHOF, Antonie

    IPC分类号： H04N7/24

    CPC分类号： H04N21/8547 ,  H04N21/23608 ,  H04N21/4344

    摘要： A method and device are disclosed for calculating estimated time stamps ìt in video distribution apparatus, MPEG-2 program encoders, multiplexers, splicers. True times Yt of a data packet number t having the linear form: Yt = Yt-1 + Jt, Jt = Jt-1 + tt, with tt being a small perturbation relative to the linear relation between time and packet number. The true times of data packet number t are observed as: ot = Yt + ht, where ht is an observational error. The estimated time stamps are produced according to: ìt = ìt-1 + βt and such that the value of βt is made dependent on the exceeding by #ot - ìt-1 - βt-1 # of max[ht]. The results are accurate and smooth estimated time stamps.

    METHOD AND SYSTEM FOR AUTHENTICATION OF A PHYSICAL OBJECT
    6.
    发明公开
    METHOD AND SYSTEM FOR AUTHENTICATION OF A PHYSICAL OBJECT 有权
    用于物理对象的认证的方法和装置

    公开(公告)号：EP1629628A2

    公开(公告)日：2006-03-01

    申请号：EP04744336.1

    申请日：2004-05-13

    申请人： Koninklijke Philips Electronics N.V.

    发明人： TUYLS, Pim, T. ,  DENTENEER, Theodorus, J., J. ,  LINNARTZ, Johan, P., M., G. ,  VERBITSKIY, Evgeny, A.

    IPC分类号： H04L9/32

    CPC分类号： G07C9/00158 ,  G06K9/00885 ,  G07C9/00087 ,  H04L9/3278

    摘要： A system for authenticating a physical object includes an enrolment device, an authentication device, and a storage for storing authentication data. The enrolment device includes an input for receiving a property set Y of the object measured using a measurement procedure. A processor is used for creating a property set I from the measured property set Y that meet a predetermined robustness criterion. It then creating a property setA from the property set I that includes less information on the actual properties than property set Y, and finally generates a control value Vin dependence on properties of the property set A. An output is used for supplying the control value to the storage as part of the authentication data. The enrolment device operates in an analogous way.

    RENEWABLE AND PRIVATE BIOMETRICS
    8.
    发明公开
    RENEWABLE AND PRIVATE BIOMETRICS 审中-公开
    ERNEUERBARE UND PRIVATE BIOMETRIK

    公开(公告)号：EP1761902A1

    公开(公告)日：2007-03-14

    申请号：EP05751654.4

    申请日：2005-06-22

    申请人： Koninklijke Philips Electronics N.V.

    发明人： AKKERMANS, Antonius, H., M. ,  CONRADO, Claudine, V. ,  DENTENEER, Theodorus, J., J.

    IPC分类号： G07C9/00 ,  H04L9/32

    CPC分类号： G07C9/00158 ,  G06K9/00885

    摘要： The present invention relates to a method of authenticating an individual (321) at an authenticating device (311) and an authenticating system for authenticating an individual. A basic idea of the present invention is to store, at a device or a system with which an individual wishes to authenticate herself, one or more data structures each comprising a value based on an identifier pertaining to the individual and an encrypted copy of the identifier. When the individual wants to authenticate herself, she contacts the authenticating device whereby a request is made to attain the encrypted identifier included in a specific data structure stored at the authenticating device. The individual subsequently provides proof to the authenticating device that she actually knows the identifier.

    摘要翻译： 本发明涉及一种在认证装置（311）上认证个人（321）的方法和用于认证个人的认证系统。 本发明的基本思想是在个人希望自己认证的设备或系统上存储一个或多个数据结构，每个数据结构包括基于与该个人有关的标识符和该标识符的加密副本的值 。 当个人想自己认证时，她联系认证设备，由此要求获得包含在认证设备中存储的特定数据结构中的加密标识符。 个人随后向认证设备提供她实际知道标识符的证明。