Message packet management in a wireless security system
    21.
    发明授权
    Message packet management in a wireless security system 失效
    无线安全系统中的消息包管理

    公开(公告)号:US5809013A

    公开(公告)日:1998-09-15

    申请号:US599061

    申请日:1996-02-09

    CPC classification number: H04L1/08

    Abstract: Information in the form of redundant message packets is sent between a remote device and a host device, e.g., a wireless security system. In order to conserve energy, the frequency of trigger events in the remote device is determined, and the number of redundant message packets sent is based on the determined frequency.

    Abstract translation: 在远程设备和主机设备(例如,无线安全系统)之间发送冗余消息分组形式的信息。 为了节省能量,确定远程设备中的触发事件的频率,并且发送的冗余消息分组的数量基于所确定的频率。

    Wireless security sensor transmitter
    22.
    发明授权
    Wireless security sensor transmitter 失效
    无线安全传感器

    公开(公告)号:US5805063A

    公开(公告)日:1998-09-08

    申请号:US599620

    申请日:1996-02-09

    CPC classification number: G08B25/003 G08B25/007 G08B25/10

    Abstract: An apparatus and method for sending messages from a sensor to a system controller in a wireless security or monitoring system, including processing signals from the sensor and generating message packets which include information derived from the sensor signals.

    Abstract translation: 一种用于在无线安全或监控系统中从传感器向系统控制器发送消息的装置和方法,包括处理来自传感器的信号并生成包括从传感器信号导出的信息的消息分组。

    Battery-operated security system sensors
    23.
    发明授权
    Battery-operated security system sensors 失效
    电池供电的安全系统传感器

    公开(公告)号:US5790040A

    公开(公告)日:1998-08-04

    申请号:US766807

    申请日:1996-12-13

    Abstract: A security system sensor has a lens lying in a forward plane that focuses received energy to a focal point that is internal to the sensor. A sensing element is located at or near the focal point of the lens. A funnel-shaped chamber between the lens and the focal point is substantially vacant so that received energy is received by the sensing element. A battery housing is positioned so that the physical volume of a battery power source contained therein is mainly rearward of the lens and the vacant funnel-shaped chamber, yet forward of a plane that is immediately rearward of the sensing element. Also, a dividing barrier, interposed between the chamber and the battery power source, extends to and seals with the sensing element and the lens, thereby providing a seal for the vacant, funnel-shaped chamber.

    Abstract translation: 安全系统传感器具有位于向前平面中的透镜,其将接收的能量聚焦到传感器内部的焦点。 感测元件位于透镜的焦点处或附近。 在透镜和焦点之间的漏斗形室基本上是空的,从而接收到的能量被感测元件接收。 电池壳体被定位成使得容纳在其中的电池电源的物理体积主要位于透镜和空的漏斗形室的后方,而在紧邻感测元件后方的平面的前方。 此外,介于腔室和电池电源之间的分隔屏障延伸到感测元件和透镜上并与其密封,从而为空的漏斗形腔提供密封。

    Crystal oscillator and transmitter operating at the third harmonic of
the fifth overtone of a crystal
    24.
    发明授权
    Crystal oscillator and transmitter operating at the third harmonic of the fifth overtone of a crystal 失效
    水晶振荡器和发射器工作在晶体的第五个谐波的三次谐波

    公开(公告)号:US5223801A

    公开(公告)日:1993-06-29

    申请号:US860152

    申请日:1992-03-30

    Applicant: John Bergman

    Inventor: John Bergman

    CPC classification number: H03C1/36 H03B5/362 H03B5/04

    Abstract: An improved short distance, battery powered, amplitude modulated RF transmitter for transmitting encoded security data. An oscillator stage provides a control crystal and filter which are feedback coupled between the emitter and base of a transistor to oscillate at the fifth overtone of the fundamental crystal frequency. A filter tuned to the third harmonic of the overtone frequency selects the carrier frequency which is coupled via a resistive attenuator to an amplifier/filter stage, before the carrier is amplitude modulated with encoded security data. The improved transmitter circuit compensates for crystals exhibiting variations in series resistance and provides increased output power and improved frequency stability to temperature and over time. A foil antenna stage is augmented with the plates of the battery power supply to further improve performance.

    Abstract translation: 改进的短距离,电池供电的幅度调制RF发射器,用于传输编码的安全数据。 振荡器级提供控制晶体和滤波器,其反馈耦合在晶体管的发射极和基极之间以在基波晶体频率的第五谐波处振荡。 调谐到谐波频率的三次谐波的滤波器在载波被编码的安全数据进行幅度调制之前,选择通过电阻衰减器耦合到放大器/滤波器级的载波频率。 改进的发射机电路补偿呈现串联电阻变化的晶体,并提供增加的输出功率和改善对温度和时间的频率稳定性。 箔片天线台用电池电源板增加,以进一步提高性能。

    Touch-less switching
    27.
    发明授权

    公开(公告)号:US10320384B2

    公开(公告)日:2019-06-11

    申请号:US15967065

    申请日:2018-04-30

    Abstract: A light switch network comprises a plurality of light switch units, each comprising a gesture interface to sense a user gesture by receiving at least one gesture signal from a sensing zone, and configured to exchange one or more gesture status signals with at least one other switch unit in the network in relation to the received gesture signal; each switch being enabled, on receiving the gesture signal: in a first mode, to change a designated switch mode and/or state in response to the gesture signal; or in a second mode, to not change the designated switch mode and/or state according to one or more conditions associated with the status signals received from the other switch unit.

    System and method for antenna failure detection
    28.
    发明授权
    System and method for antenna failure detection 失效
    天线故障检测系统和方法

    公开(公告)号:US6114955A

    公开(公告)日:2000-09-05

    申请号:US90108

    申请日:1998-06-03

    CPC classification number: H04B17/20 H04B17/17

    Abstract: In a wireless security system, the system controller includes one or more antennas for reception of signals from remote sensor-transmitter units. To detect antenna failure, the system controller generates a test signal with a known parameter and transmits this test signal via a first antenna. The system controller then measures the parameter of the corresponding test signal received, if any, via a second antenna, and compares the parameter of the corresponding test signal received to a predetermined threshold parameter. When the parameter of the test signal received via the second antenna differs from the threshold by a predetermined amount, or predetermined margin for error, an antenna failure message is generated.

    Abstract translation: 在无线安全系统中,系统控制器包括用于从远程传感器 - 发射机单元接收信号的一个或多个天线。 为了检测天线故障,系统控制器产生具有已知参数的测试信号,并通过第一天线发送该测试信号。 然后,系统控制器经由第二天线测量接收到的相应测试信号的参数(如果有的话),并将接收到的相应测试信号的参数与预定阈值参数进行比较。 当通过第二天线接收到的测试信号的参数与阈值不同预定量或预定的误差余量时,产生天线故障消息。

    Low battery detector for a wireless sensor
    29.
    发明授权
    Low battery detector for a wireless sensor 失效
    低电量检测器,用于无线传感器

    公开(公告)号:US5942981A

    公开(公告)日:1999-08-24

    申请号:US599087

    申请日:1996-02-09

    CPC classification number: G08B29/181

    Abstract: Measuring the critical value of a parameter of a sensor in a security system (e.g., battery voltage) is performed at a time when the critical value is most likely to be reached, and the critical value information is sent from the sensor to a system controller at a time when the information is most likely to be successfully received.

    Abstract translation: 在最可能达到临界值的时候,执行安全系统中传感器参数的临界值(例如电池电压)的测量,临界值信息从传感器发送到系统控制器 在信息最有可能获得成功的时候。

    Apparatus and method for reducing errors in a battery operated sensing
circuit
    30.
    发明授权
    Apparatus and method for reducing errors in a battery operated sensing circuit 失效
    用于减少电池操作的感测电路中的误差的装置和方法

    公开(公告)号:US5872512A

    公开(公告)日:1999-02-16

    申请号:US599628

    申请日:1996-02-09

    CPC classification number: G08B29/181

    Abstract: An apparatus and method for reducing errors in a battery powered sensing circuit uses two pull-up resistors. The first resistor has a value selected to minimize battery drain and the second resistor has a value selected to reduce dendrite or other parasitic parallel resistance. The resistors are selectively connected to the circuit based on a predetermined sequence and/or time interval.

    Abstract translation: 用于减少电池供电的感测电路中的误差的装置和方法使用两个上拉电阻器。 第一个电阻器具有选择的值以最小化电池漏极,并且第二电阻器具有被选择用于减少枝晶或其它寄生并联电阻的值。 电阻器基于预定的顺序和/或时间间隔选择性地连接到电路。

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