公开(公告)号：EP0800127A4

公开(公告)日：1998-07-08

申请号：EP96933607

申请日：1996-10-09

申请人： FANUC LTD

发明人： ONISHI YASUSHI ,  WATANABE TORU

IPC分类号： G05B19/042 ,  G05B19/05 ,  G05B19/18 ,  G06F9/06

CPC分类号： G05B19/0426 ,  G05B2219/24154 ,  G05B2219/24155 ,  G05B2219/24158 ,  G05B2219/24167

摘要： When a command for removing a protection is given from a keyboard (1g), a protect control (1c) releases the protect and starts counting time. An editor (1d) edits sequence data (1a) on the basis of the operation of the keyboard (1g), etc., under the release state of the protect, and a transfer unit (1e) transfers the edited data to a PC (2). The corresponding portion of the sequence data (2d) is rewritten (2b) in accordance with the sequence data (1a) so transferred. On the other hand, the protect control (1c) of a programming apparatus (1) resets the protect when the count value from the time of the protect release exceeds a predetermined time.

公开(公告)号：EP0645028B1

公开(公告)日：1997-12-29

申请号：EP93914299

申请日：1993-06-01

申请人： DOW CHEMICAL CO ,  DOW BENELUX

发明人： DE BRUIJN RONNY P ,  VAN WEELE LEONARDUS ARIE ,  VERBOVEN MARC LOUIS KAREL ,  VERMEIRE ROGER E ,  SCHULZE OSCAR E ,  BELL BRIAN G ,  SCHULTZ DALE H

IPC分类号： G06F13/00 ,  G05B15/02 ,  G05B19/042 ,  G05B19/418 ,  G06F1/00 ,  G06F11/20 ,  G06F21/00

CPC分类号： G06F21/31 ,  G01R31/318385 ,  G05B19/0421 ,  G05B19/0425 ,  G05B19/0428 ,  G05B19/4185 ,  G05B19/41855 ,  G05B2219/24167 ,  G05B2219/24182 ,  G06F11/16 ,  G06F2221/2103 ,  G06F2221/2129 ,  Y02P90/18 ,  Y02P90/185

摘要： A secure front-end communication system which couples a plurality of actively redundant process control computers to a computer network. The system includes a front end computer which is capable of establishing time limited communication contracts with one or more computer entity on the computer network. Each time limited communication contract is based upon an acceptable response to the transmission of an unpredicable signal from the front end computer, such as an encrypted transformation of a pseudo-random number generated by the front end computer. A security table is used to identify the network entities that are permitted to send write command messages to the process control computers to which the front end computer is connected. The front end computer also includes at least one permissive table which is used to determine whether a write command message from the network entity should be transmitted to the process control computer for which the message was intended.

公开(公告)号：EP0455174A3

公开(公告)日：1993-08-25

申请号：EP91106864.1

申请日：1991-04-27

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Hohenner, Hans ,  Heidenreich, Andreas

IPC分类号： G05B19/042

CPC分类号： G05B19/0428 ,  G05B2219/23051 ,  G05B2219/24167 ,  G11C16/102 ,  G11C16/22

摘要： Eine Steuervorrichtung für technische Anlagen und Maschinen, insbesondere für Brennkraftmaschinen von Kraftfahrzeugen, mit einem Mikroprozessor, einem fest programmierten Speicher und einem frei programmierbaren, wieder löschbaren Speicher, bei dem vor dem Beschreiben des programmierbaren Speichers eine Zugangsroutine abläuft. Bei der das externe Programmiergerät einen Fragebefehl aussendet und daraufhin das Steuergerät ebenfalls eine dem Fragebefehl entsprechende Antwort aussendet. Das externe Programmiergerät wandelt die Antwort in ein dem Inhalt der Antwort entsprechendes Zugangssignal um und das Steuergerät erlaubt nur bei Übereinstimmung des Zugangssignals mit dem entsprechenden Inhalt der Antwort die Beschreibung des Speichers.

公开(公告)号：EP0182281B1

公开(公告)日：1990-10-03

申请号：EP85114453.5

申请日：1985-11-13

申请人： Quick-Rotan Elektromotoren GmbH

发明人： Hülshoff, Hartmut, Dr.-Ing. ,  Luft, Michael, Dipl.-Ing. (FH) ,  Schütz, Ulrich, Dipl.-Ing. (TH) ,  Kothe, Peter, Dipl.-Ing.

IPC分类号： G05B19/405

CPC分类号： G05B19/102 ,  G05B19/0426 ,  G05B2219/21034 ,  G05B2219/23371 ,  G05B2219/23425 ,  G05B2219/24024 ,  G05B2219/24069 ,  G05B2219/24138 ,  G05B2219/24167 ,  G05B2219/25092 ,  G05B2219/25178 ,  G05B2219/25366 ,  G05B2219/25378 ,  G05B2219/25382 ,  G05B2219/2626 ,  G05B2219/34101 ,  G05B2219/36159 ,  G05B2219/36395 ,  G05B2219/45195

公开(公告)号：EP0298625A3

公开(公告)日：1990-07-11

申请号：EP88305617.8

申请日：1988-06-21

申请人： SONY CORPORATION

发明人： Suzuki, Masakazu ,  Suematsu, Masayuki ,  Komiya, Yoshinori

IPC分类号： G01R31/28 ,  G06F11/22 ,  H04N17/00

CPC分类号： H04N17/04 ,  G01R31/2834 ,  G01R31/31701 ,  G05B2219/24167 ,  G05B2219/36542 ,  G06F11/22 ,  H03J1/0008 ,  H03J1/0033

摘要： In controlling an electronic apparatus, such as a colour television receiver, of the type having signal processing circuits (2 to 4, 6, 7) which are individually adjustable in accordance with control signals from a central processing unit (CPU) (9) in response to data corresponding to predetermined standardized conditions of the circuits (2 to 4, 6, 7) and which are stored in a non-volatile memory (11) along with a secret code, operating keys (12, 22) selectively actuable to provide input data the CPU (9) for representing an externally applied code and, in a servicing mode of the receiver, for rewriting the data in the memory (11) and an inner bus (13) connecting the CPU (9) to the adjustable circuits (2 to 4, 6, 7), the memory (11) and the operating keys (12, 22); a standby power supply (15) provides electric power to the CPU (9) at a time when operating keys (22) are actuated for inputting data representing an externally applied code to the CPU (9), a main power supply (17) is turned on for supplying power to the adjustable circuits (2 to 4, 6, 7) and thereby cause the receiver to display an image, and the servicing mode of the receiver is established only when the externally applied code coincides with the stored secret code and the turning on of the main power supply (17) is effected within a predetermined period after the externally applied code has been made to be coincident with the store secret code.

公开(公告)号：EP0371451A2

公开(公告)日：1990-06-06

申请号：EP89121918.0

申请日：1989-11-28

申请人： SECURE-TIME, INC.

发明人： Ratliff, James E. ,  Nicholson, Walter P.

IPC分类号： G07F7/00 ,  G07C9/00

CPC分类号： G06Q20/127 ,  G05B2219/24167 ,  G07C9/00023 ,  G07C9/00111 ,  G07F15/00 ,  G07F17/0014

摘要： An electronic controller switch (90) is disclosed for authorizing use of controlled devices. The electronic controller switch includes memory (112) for storing a plurality of data strings unique to the particular controlled device with which the electronic controller switch is used. Each data string includes an access code, a validation data bit, and a user time data value. A user provides an input code to the controller via a standard infrared transmitter (134) and an infrared receiver (130) coupled to the controller. In response to the input code provided by the user, a microprocessor (106) searches the memory to determine whether any of the data strings includes a corresponding access code. If a corresponding access code is found and the validation data bit of its data string is not set, then the user has provided a valid input code and will be authorized to use the controlled device (102). If the validation data bit is set, which indicates that the input code provided by the user has been previously used, the user will not be authorized. When the microprocessor determines that a user is authorized, the microprocessor will provide the use time data value of the data string to a timer (116), thereby to control the time period for which the user is authorized. Different data strings are provided with time data values corresponding to different duration time periods.

摘要翻译： 公开了一种用于授权使用受控设备的电子控制器开关（90）。 电子控制器开关包括用于存储使用电子控制器开关的特定受控设备特有的多个数据串的存储器（112）。 每个数据串包括访问代码，验证数据位和用户时间数据值。 用户通过耦合到控制器的标准红外发射器（134）和红外接收器（130）向控制器提供输入代码。 响应于由用户提供的输入代码，微处理器（106）搜索存储器以确定数据串中的任何一个是否包括相应的访​​问代码。 如果找到对应的访问代码并且未设置其数据串的验证数据位，则用户提供了有效的输入代码，并且将被授权使用受控设备（102）。 如果验证数据位被设置，这表示用户提供的输入代码已经被使用，则不会授权用户。 当微处理器确定用户被授权时，微处理器将向定时器（116）提供数据串的使用时间数据值，从而控制用户被授权的时间段。 不同的数据串被提供有对应于不同持续时间的时间数据值。