公开(公告)号：EP0586256B1

公开(公告)日：1998-07-22

申请号：EP93306971.8

申请日：1993-09-03

申请人： NOKIA MOBILE PHONES LTD.

发明人： Jokinen, Harri ,  Jorri, Sakari

IPC分类号： G04G3/02 ,  G04G7/00

CPC分类号： G04G7/00 ,  G04G3/027 ,  H04W52/0293 ,  Y02D70/1222 ,  Y02D70/24

摘要： A time measurement system for measuring time accurately with an inaccurate clock, in which two clock oscillators are compared and the momentary error of the slower clock oscillator is measured. When the error change rate of the slower clock oscillator is slow enough the fast clock oscillator can be switched off for longer time intervals. With the help of this apparatus and method of operation power can be saved in portable equipment which requires accurate time measurement.

摘要翻译： 一个时间测量系统，用于测量时钟精度不准确，其中两个时钟振荡器进行比较，并测量较慢时钟振荡器的瞬时误差。 当较慢时钟振荡器的误差变化率足够慢时，快速时钟振荡器可以关闭更长的时间间隔。 借助这种设备和操作方法，可以节省需要精确时间测量的便携式设备中的电源。

公开(公告)号：EP0656572B1

公开(公告)日：1998-04-22

申请号：EP94117551.5

申请日：1994-11-07

申请人： SEIKO INSTRUMENTS INC.

发明人： Kanesaka, Toshiya, c/o Seiko Instrument Inc.

IPC分类号： G04G5/00 ,  G04G7/02

CPC分类号： G04R20/00

公开(公告)号：EP0461557B1

公开(公告)日：1997-12-03

申请号：EP91109359.9

申请日：1991-06-07

申请人： TIMING SOLUTIONS CORPORATION

发明人： Stein, Samuel R.

IPC分类号： G04G3/00 ,  G04G7/02

CPC分类号： G04F5/00

公开(公告)号：EP0562410B1

公开(公告)日：1997-05-28

申请号：EP93104202.2

申请日：1993-03-16

申请人： THOMSON multimedia

发明人： Diehl, Eric ,  Hamon, Joel

IPC分类号： G04G5/00 ,  H04H1/00 ,  G04G7/02 ,  G04G9/00

CPC分类号： H04H20/86 ,  G04R20/14 ,  G04R20/20 ,  H04N5/782 ,  H04N7/0882

摘要： Currently today, the vertical blanking interval lines of TV signals are used to carry digital information, e.g. teletext, pay TV, program marking. One part of this information can be the current real time. Often consumer products are equipped with a real time clock which is linked to a micro-controller driving the complete device, e.g. a VCR. This allows to perform some programming tasks. But this real time clock needs a power supply in order to work. In case of power failure, it looses the time unless it is backed up by an expensive accumulator or a battery. A central microcontroller (1) drives a real time clock (3) and the standby function of a power supply (4) . A data extractor (2) receives a signal containing the real time, e.g. a video signal, and extracts the expected data related to the real time and transfers this data to the microcontroller. The microcontroller sets the clock after preselected time periods, e.g. once per day, and after switching on the whole apparatus. The microcontroller and the real time clock only have to be supplied in stand by mode.

摘要翻译： 目前今天，TV信号的垂直消隐间隔线被用于承载数字信息，例如， 图文电视，付费电视，节目标记。 这一信息的一部分可以是当前的实时。 通常，消费品配备有实时时钟，其连接到驱动整个设备的微控制器，例如， 录像机 这允许执行一些编程任务。 但这个实时时钟需要一个供电才能工作。 在电源故障的情况下，除非由昂贵的蓄电池或电池备份，否则会失去时间。 中央微控制器（1）驱动实时时钟（3）和电源（4）的待机功能。 数据提取器（2）接收包含实时信号的信号。 视频信号，并提取与实时相关的预期数据并将该数据传送到微控制器。 微控制器在预选的时间段之后设置时钟，例如。 每天一次，并且在打开整个设备之后。 微控制器和实时时钟只能以待机模式提供。

公开(公告)号：EP0771438A1

公开(公告)日：1997-05-07

申请号：EP95927319.0

申请日：1995-07-20

申请人： SYMMETRICOM, INC.

发明人： ZAMPETTI, George, Philip

IPC分类号： G04G3 ,  G04G5 ,  G04G7 ,  H04J3

CPC分类号： H04J3/0688 ,  G04G7/02

摘要： Methods and apparatus are disclosed for providing disciplined clock signals at a plurality of nodes located throughout a network. In the preferred embodiments, a plurality of clocks are ensembled to provide ensemble time base information. A universal clock signal such as from a global positioning satellite (GPS) or Loran receiver is also provided and the ensembled time information is disciplined to the frequency or the phase of the universal clock signal to provide syntonisation or synchronization throughout the network.

公开(公告)号：EP0703514A1

公开(公告)日：1996-03-27

申请号：EP94115093.0

申请日：1994-09-24

申请人： Eta SA Fabriques d'Ebauches

发明人： Kalbermatter, Stefan

IPC分类号： G04G7/02

CPC分类号： G04R20/08 ,  G04R20/14

摘要： The invention relates to a communications system comprising means (12) for generating a succession of time message signals; a central station (2) having means for transmitting said time message signals; at least a first receiver (5) for receiving said time message signals; and timing means (9,10,11) for determining the real time of receipt of each time message signal. Each said time message signal is representative of the real time of receipt by said first receiver of a preceding time message signal. The first receiver comprises clock means (40,41) for providing said first receiver with an internal time signal; means (7,7a) for resetting said clock means upon the receipt of a first time message signal; and means (7,7b,42) for advancing said clock means, upon receipt of a subsequent time message signal, by the real time indicated by said subsequent time message signal.

摘要翻译： 本发明涉及一种包括用于生成一系列时间信息信号的装置（12）的通信系统; 中央站（2）具有用于发送所述时间信息信号的装置; 至少第一接收器（5），用于接收所述时间信息信号; 以及用于确定每个时间消息信号的实时接收的定时装置（9,10,11）。 每个所述时间消息信号代表所述第一接收机接收到先前时间消息信号的实时时间。 第一接收机包括用于向所述第一接收机提供内部时间信号的时钟装置（40,41）; 用于在接收到第一时间消息信号时复位所述时钟装置的装置（7,7a）; 以及用于在接收到随后的时间消息信号时由所述后续时间消息信号指示的实时推进所述时钟装置的装置（7,7b，42）。

公开(公告)号：EP0650106A1

公开(公告)日：1995-04-26

申请号：EP94115995.6

申请日：1994-10-11

申请人： THOMSON multimedia

发明人： Bürklin, Helmut

IPC分类号： G04G7/00

CPC分类号： H04J3/0641 ,  G04G7/00

摘要： Many devices (in particular white goods or brown goods) in a household may contain a clock. Some systems allow to connect all these devices and the related clocks to a common bus or network. The commands for controlling the clocks are in general limited to reading or writing a given time or to broadcasting the time of a given clock to one dedicated device or to the entire system or to a part of the system. In such known systems it is not specified in which manner a clock should react if it receives the time broadcast by another clock. It is possible to initialise all clocks to a given time but due to tolerances in the different clocks, so achieved synchronisation will not be maintained. Regular broadcasting by a special device 'master clock' has the disadvantage of introducing one device with different capabilities. In case there are several master clocks, conflicts may occur and the advantages of a high precision clock will fade away if a lower precision master clock overrides it.
One solution is, that only the clock with the highest precision broadcasts its time to the system, but whenever it fails the next lower precision clock takes over the broadcasting automatically. The broadcast periods are defined as factorial periods of a preselected time period.
Another possibility is, that all devices will broadcast the time with an equal period but with a different phase and only if no broadcast was received in the preceding time period.

摘要翻译： 家庭中的许多设备（特别是白色家电或棕色商品）可能包含时钟。 一些系统允许将所有这些设备和相关时钟连接到公共总线或网络。 用于控制时钟的命令通常限于读取或写入给定时间，或者将给定时钟的时间广播到一个专用设备，或整个系统或系统的一部分。 在这种已知的系统中，如果接收到另一个时钟广播的时间，则时钟不应以哪种方式作出反应。 可以将所有时钟初始化到给定的时间，但是由于不同时钟的容差，所以不会保持同步。 通过特殊设备“主时钟”的定期广播具有引入具有不同功能的一个设备的缺点。 如果有几个主时钟，则可能发生冲突，如果较低精度的主时钟超越，则高精度时钟的优点将会消失。 一个解决方案是，只有具有最高精度的时钟将其时间传播到系统，但是当它失败时，下一个较低精度的时钟将自动接收广播。 广播时段被定义为预选时间段的阶乘时段。 另一个可能性是，所有设备将以相同的周期广播时间，但是具有不同的相位，并且仅在前一时间段内没有收到广播时才播放。

公开(公告)号：EP0564220A3

公开(公告)日：1995-01-18

申请号：EP93302450.7

申请日：1993-03-30

申请人： GLENAYRE ELECTRONICS, INC.

发明人： Witsaman, Mark L. ,  Glessner, David W. ,  Benz, Roger E. ,  Crowley-Dierks, Joel R.

IPC分类号： G04G7/02

CPC分类号： G04G7/02

摘要： A clock synchronization system for synchronizing the performance of a number of clocks (46) so that they run parallel with a reference clock is disclosed. Each clock of this synchronization system includes a counter (52) that indicates the current time and that is sequentially incremented by a counter advance signal applied thereto. A time counter controller (54) both initializes the counter and generates the clocking signal that controls the advancement of the counter. The time counter controller further monitors the time indicated by the counter and compares it to a reference-time signal received from a reference clock. Based on the comparison, the time counter controller selectively reinitializes the counter and adjusts the rate at which the clocking signal is applied to the counter so as to ensure that the counter advances at a rate equal to the rate at which the reference clock advances. In some versions of the invention, the comparison of the reference-time signal to the actual clock counter time is made at a maintenance operation point (58) remote from the clock. In these versions of the invention, the maintenance operation point reports the difference in the two times back to the time counter controller, which, in turn, makes the appropriate adjustments to the counter and to the clocking signal.

公开(公告)号：EP0461557A3

公开(公告)日：1994-02-23

申请号：EP91109359.9

申请日：1991-06-07

申请人： TIMING SOLUTIONS CORPORATION

发明人： Stein, Samuel R.

IPC分类号： G04G3/00 ,  G04G7/02

CPC分类号： G04F5/00

摘要： An improved system for providing ensemble time from an ensemble of oscillators is provided. In the system, a more complete ensemble definition permits a more accurate ensemble time to be calculated. The system takes into account at least weighted time and weighted frequency aspects or weighted time and weighted frequency aging aspects of each oscillator in the ensemble. Preferably, the system takes into account all of the weighted time aspects, weighted frequency aspect, and weighted frequency aging aspects for each oscillator in the ensemble. The weights with respect to each clock can be chosen to be either zero or any positive value such that the sum of the weights for each aspect sum to one. The system can be implemented using a Kalman approach.

摘要翻译： 提供了一种用于从振荡器集合提供集合时间的改进系统。 在该系统中，更完整的集合定义允许计算更准确的集合时间。 该系统至少考虑了系综中每个振荡器的加权时间和加权频率方面或加权时间和加权频率老化方面。 优选地，该系统考虑集合中每个振荡器的所有加权时间方面，加权频率方面和加权频率老化方面。 相对于每个时钟的权重可以选择为零或任何正值，使得每个方面的权重总和为1。 该系统可以使用卡尔曼方法来实施。

公开(公告)号：EP0555534A2

公开(公告)日：1993-08-18

申请号：EP92119869.3

申请日：1992-11-21

申请人： BUDERUS HEIZTECHNIK GmbH

发明人： Jakob, Rainer, Dipl.-Ing.

IPC分类号： G04G7/02 ,  G04C11/02 ,  G04G15/00

CPC分类号： G05D23/1905 ,  F24H9/20 ,  G04G15/006 ,  G04R20/26

摘要： Bei dem Prinzip der Funkuhr geht es darum, mittels Funk codierte Zeitsignale von einem Sender auf einen Empfänger zu übertragen. Die aktuelle Uhrzeit ist dadurch immer exakt eingestellt.
Bei der Anwendung dieses Prinzips bei Schaltuhren (4) von Kesselreglern (3) soll die separate Verkabelung eines von der Schaltuhr (4) entfernt sitzenden Empfängers (8) vermieden werden. Der Empfänger (8) sitzt zu diesem Zweck in dem mit dem Kesselregler (3) verbundenen, im Wohnbereich (5) angeordneten Fernbedienungsgerät (6).

摘要翻译： 无线电时钟的原理是使用无线电从发射机向接收机发送编码的时间信号。 因此，当前时钟时间总是精确设置。 当这个原理应用在锅炉控制器（3）的时间开关（4）中时，其目的是避免在远离时间开关（4）的位置处接收器（8）的单独布线。 为此，接收器（8）位于与锅炉控制器（3）连接并位于起居区（5）中的遥控单元（6）中。