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公开(公告)号:US20100008662A1
公开(公告)日:2010-01-14
申请号:US12218502
申请日:2008-07-14
申请人: Peter F. Bradbeer
发明人: Peter F. Bradbeer
CPC分类号: H04B10/0799 , H04B10/07955
摘要: A method of closed loop control for an optical link is presented, utilizing a copper feedback connection between the optical transmitter and optical receiver, suitable for short distance applications. An architecture is provides that may be used to define and maintain an optimum optical launch power for a defined bit error rate, guaranteeing extinction ratio and absolute optimum operating power. The invention also includes the use of such a loop in achieving fast link initialization and dynamic optimization to compensate for all effects of time and temperature for all components within the link.
摘要翻译: 提出了一种用于光链路的闭环控制的方法,利用光发射机和光接收机之间的铜反馈连接,适用于短距离应用。 提供了一种架构,其可用于定义和维持定义的位错误率的最佳光发射功率,保证消光比和绝对最佳操作功率。 本发明还包括使用这种循环实现快速链路初始化和动态优化以补偿链路内所有组件的时间和温度的所有影响。
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公开(公告)号:US4910464A
公开(公告)日:1990-03-20
申请号:US216229
申请日:1988-07-07
申请人: John Trett , Peter F. Bradbeer
发明人: John Trett , Peter F. Bradbeer
IPC分类号: B66B13/26 , E05F15/00 , E05F15/12 , E05F15/20 , G01S15/06 , G01S15/88 , G01S17/02 , G01S17/87 , H04B3/54
CPC分类号: H04B3/54 , B66B13/26 , E05F15/73 , G01S15/88 , G01S17/026 , G01S17/87 , E05F15/43 , E05F15/611 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2600/46 , E05Y2900/104 , H04B2203/5466
摘要: A movable door incorporates a proximity detection system for sensing obstructions in the path of the door. The system comprises an array of transmitter/receiver pairs (21, 22 and 23), each pair comprising a transmitter (1) for transmitting an energy pulse, a receiver (2) located adjacent the transmitter and directed to receive any reflected transmitter pulses, and a shielding (3) for shielding the receiver (2) from receiving energy pulses directly from the transmitter (1). At least two transmitter/receiver pairs (21, 23) are mounted on a leading edge or face of the door (12) to transmit energy pulses in a direction which is not at right angles to the leading surface or edge of the door, to monitor for obstructions in the path of the door (12). Another two transmitter/receiver pairs (26 and 28) are mounted on the leading edge or surface of the door (12) to transmit energy pulses at right angles to the surface or edge of the door (12). Different transmitter/receiver pairs may transmit on different frequencies, and means for suppressing unwanted reflected signals is provided. Means for transmitting data signals on a two-conductor power supply cable for the system is disclosed.
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公开(公告)号:US4973837A
公开(公告)日:1990-11-27
申请号:US312805
申请日:1989-02-09
申请人: Peter F. Bradbeer
发明人: Peter F. Bradbeer
IPC分类号: E05F15/20 , G01S7/481 , G01S7/52 , G01S15/04 , G01S15/10 , G01S17/88 , G08B13/187 , H03K17/94
CPC分类号: H03K17/941 , E05F15/73 , G01S15/04 , G01S15/10 , G01S17/88 , G01S7/4813 , G01S7/52015 , G08B13/187 , E05F2015/763 , E05Y2900/132
摘要: A proximity detector in which a sensor unit (10) senses reflected energy received from a predetermined volume or zone and generates an electrical signal representative of the received energy. Circuit means process the received signals to control the operation of apparatus such as automatic doors. One aspect of the invention is concerned with the sensor unit in which transmitters (14) are located in a housing with a receiver (15). The housing has a filter (7) through which infrared radiation can be transmitted and received. Mask areas on the filter define the zone into which radiation can be transmitted and from which it can be received. The filter is interchangeable so that zones of different sizes and dimensions can be provided. Another aspect is concerned with novel signal processing circuitry and a further aspect is concerned with an ultrasonic system wherein a multiplier is used to process the received signals.
摘要翻译: PCT No.PCT / GB87 / 00569 Sec。 371日期1989年2月9日第 102(e)日期1989年2月9日PCT提交1987年8月12日PCT公布。 第WO88 / 01394号公报 日期:1988年2月25日。一种接近检测器,其中传感器单元(10)感测从预定体积或区域接收的反射能量,并产生表示接收到的能量的电信号。 电路意味着处理接收到的信号以控制诸如自动门的设备的操作。 本发明的一个方面涉及传感器单元,其中发射器(14)位于具有接收器(15)的壳体中。 壳体具有可以传送和接收红外辐射的过滤器(7)。 过滤器上的掩模区域定义可以传输辐射的区域,并从中可以接收辐射区域。 过滤器是可互换的,从而可以提供不同尺寸和尺寸的区域。 另一方面涉及新颖的信号处理电路,另一方面涉及一种超声系统,其中乘法器用于处理所接收的信号。
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公开(公告)号:US4864296A
公开(公告)日:1989-09-05
申请号:US216611
申请日:1988-07-08
申请人: John Trett , Peter F. Bradbeer
发明人: John Trett , Peter F. Bradbeer
IPC分类号: B66B13/26 , E05F15/00 , E05F15/12 , E05F15/20 , G01S15/06 , G01S15/88 , G01S17/02 , G01S17/87 , H04B3/54
CPC分类号: H04B3/54 , B66B13/26 , E05F15/73 , G01S15/88 , G01S17/026 , G01S17/87 , E05F15/43 , E05F15/611 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2600/46 , E05Y2900/104 , H04B2203/5466
摘要: A system for synchronizing pulse signals transmitted between two stations using only two conductor lines includes a synchronization circuit. The circuit includes two modulators and two EXCLUSIVE-OR gates for controlling when data pulses are transmitted and when synchronization pulses are transmitted.
摘要翻译: 仅使用两根导体线在两个站之间传输的脉冲信号同步的系统包括同步电路。 该电路包括两个调制器和两个异或门,用于当数据脉冲被发送时和当发送同步脉冲时进行控制。
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公开(公告)号:US08521019B2
公开(公告)日:2013-08-27
申请号:US12218502
申请日:2008-07-14
申请人: Peter F. Bradbeer
发明人: Peter F. Bradbeer
IPC分类号: H04B10/00
CPC分类号: H04B10/0799 , H04B10/07955
摘要: A method of closed loop control for an optical link is presented, utilizing a copper feedback connection between the optical transmitter and optical receiver, suitable for short distance applications. An architecture is provides that may be used to define and maintain an optimum optical launch power for a defined bit error rate, guaranteeing extinction ratio and absolute optimum operating power. The invention also includes the use of such a loop in achieving fast link initialization and dynamic optimization to compensate for all effects of time and temperature for all components within the link.
摘要翻译: 提出了一种用于光链路的闭环控制的方法,利用光发射机和光接收机之间的铜反馈连接,适用于短距离应用。 提供了一种架构,其可用于定义和维持定义的位错误率的最佳光发射功率,保证消光比和绝对最佳操作功率。 本发明还包括使用这种循环实现快速链路初始化和动态优化以补偿链路内所有组件的时间和温度的所有影响。
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公开(公告)号:US5130543A
公开(公告)日:1992-07-14
申请号:US543775
申请日:1990-07-18
申请人: Peter F. Bradbeer
发明人: Peter F. Bradbeer
摘要: A direction sensitive energy detecting apparatus characterized by having a pair of energy receiving and transmitting devices of different polar characteristics and so disposed that they define together one end of a path in such a way as to be coincident with each other; with the sensor being adapted to give two first outputs at least one of which is variable as a function of the direction of the path and the detector having ratiometric means for generating a second output which is a function of the ratio of the two first outputs and is variable only in response to changes in direction.
摘要翻译: PCT No.PCT / GB89 / 00051 Sec。 371 1990年7月18日第 102(e)1990年7月18日PCT PCT 1989年1月19日PCT公布。 第WO89 / 06806号公报 日本时间1989年7月27日。一种方向敏感能量检测装置,其特征在于具有一对具有不同极性特性的能量接收和传输装置,并且被布置成使得它们以一定方式将路径的一端限定为与每个 其他; 其中传感器适于给出两个第一输出,其中至少一个可以作为路径方向的函数而变化,并且检测器具有用于产生第二输出的比例装置,该第二输出是两个第一输出和 仅在响应方向变化时才是变量。
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公开(公告)号:US4894952A
公开(公告)日:1990-01-23
申请号:US88109
申请日:1987-08-12
申请人: John Trett , Peter F. Bradbeer
发明人: John Trett , Peter F. Bradbeer
IPC分类号: B66B13/26 , E05F15/00 , E05F15/12 , E05F15/20 , G01S15/06 , G01S15/88 , G01S17/02 , G01S17/87 , H04B3/54
CPC分类号: H04B3/54 , B66B13/26 , E05F15/73 , G01S15/88 , G01S17/026 , G01S17/87 , E05F15/43 , E05F15/611 , E05F2015/433 , E05F2015/434 , E05F2015/483 , E05F2015/763 , E05Y2400/664 , E05Y2600/46 , E05Y2900/104 , H04B2203/5466
摘要: A movable door incorporates a proximity detection system for sensing obstructions in the path of the door. The system comprises an array of transmitter/receiver pairs, each pair comprising a transmitter for tranmitting an energy pulse, a receiver located adjacent the transmitter and directed to receive any reflected transmitter pulses, and a shielding for shielding the receiver from receiving energy pulses directly from the transmitter. At least two transmitter/receiver pairs are mounted on a leading edge or face of the door to transmit energy pulses in a direction which is not at right angles to the leading surface or edge of the door, to monitor for obstructions in the path of the door. Another two transmitter/receiver pairs are mounted on the leading edge or surface of the door to transmit energy pulses at right angles to the surface or edge of the door. Different transmitter/receiver pairs may transmit on different frequencies, and means for suppressing unwanted reflected signals is provided. Means for transmitting data signals on a two-conductor power supply cable for the system is disclosed.
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公开(公告)号:US4839605A
公开(公告)日:1989-06-13
申请号:US116719
申请日:1987-09-25
申请人: John Trett , Peter F. Bradbeer
发明人: John Trett , Peter F. Bradbeer
IPC分类号: G01V8/20 , B25J19/00 , B66B13/26 , H03K17/16 , H03K17/945
摘要: A detection system for a sliding lift or elevator door comprises at least two sensors for monitoring the door opening. The sensors are arranged to detect the presence of a moving irregular shape (e.g. human form) in the doorway to reverse the opening action of the door or, if already open, to prevent the door from closing. A signal compensation circuit is provided to process the output signals from the sensors in a sense to maintain the outputs equal under steady state conditions. This is achieved by using the output of a first sensor as a reference signal. A comparator compares the output of a second sensor with a reference signal and through a feedback loop modifies the output of the said second sensor in a sense to equal the output of the first sensor. The feedback loop contains a delay circuit which is switchable between a long and a short delay. For slow changes in the output of the second sensor the long delay is effective but for first changes the delay circuit is switched to provide a short delay. The compensation circuit is effectively desensitized against errors due to drift and other slowly varying influences.
摘要翻译: PCT No.PCT / GB87 / 00080 Sec。 371日期1987年9月25日第 102(e)1987年9月25日PCT PCT 1987年2月4日PCT公布。 出版物WO87 / 04691 日期1987年8月13日。用于滑动升降机或电梯门的检测系统包括用于监控门开口的至少两个传感器。 传感器布置成检测门口中存在移动的不规则形状(例如人形)以逆转门的打开动作,或者如果已经打开,则防止门关闭。 提供信号补偿电路以在某种意义上处理来自传感器的输出信号,以在稳态条件下维持输出相等。 这是通过使用第一传感器的输出作为参考信号来实现的。 比较器将第二传感器的输出与参考信号进行比较,并且通过反馈回路在一定程度上修改所述第二传感器的输出以等于第一传感器的输出。 反馈回路包含延迟电路,可在长时间和短时间之间切换。 对于第二传感器的输出缓慢变化,长延迟有效,但是对于第一次改变,延迟电路被切换以提供短的延迟。 补偿电路由于漂移和其他缓慢变化的影响而导致的误差有效地脱敏。
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