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    • 1. 发明公开
    • 조합된 레이저 송신기 및 광검출기 수신기 패키지
    • 组合激光发射器和光电接收器封装
    • KR1020070088573A
    • 2007-08-29
    • KR1020077007804
    • 2005-10-04
    • 피니사 코포레이숀
    • 아이즈푸루호세호아킨
    • H01L31/00H01J40/14H01L33/48
    • G01D5/342H01L31/167H01L2224/48247
    • Reflective optical sensors. A reflective optical sensor for sensing the presence of an object can include a reflective sensor package having a first cavity and a second cavity. The first and second cavities can be located side-by-side in the sensor package. A vertical cavity surface emitting laser (VCSEL) can be located within the first cavity for producing an optical emission. An optical receiver can be located within the second cavity and configured to receive at least a portion of the produced optical emission that is reflected from the object such that when the reflected emission is above a threshold strength the object is determined to be present. The optical receiver can be a shunt phototransistor and can include reverse bias protection.
    • 反光光学传感器。 用于感测物体存在的反射光学传感器可以包括具有第一腔和第二腔的反射传感器封装。 第一和第二空腔可以并排地位于传感器封装中。 垂直腔表面发射激光器(VCSEL)可以位于第一腔内,用于产生光发射。 光学接收器可以位于第二腔内并且被配置为接收从物体反射的所产生的光发射的至少一部分,使得当反射发射高于阈值强度时,物体被确定为存在。 光接收器可以是分流光电晶体管,并且可以包括反向偏置保护。
    • 8. 发明公开
    • 광검출기 보상장치, 광 송수신기 및 광검출 보상방법
    • 用于补偿光电探测器的方法和装置
    • KR1020050053721A
    • 2005-06-08
    • KR1020057005612
    • 2003-10-03
    • 피니사 코포레이숀
    • 두머다린제임스스튜어트제임스월터호프마이스터루디호안토니더블유호스킹스티븐더블유
    • H04B10/40C08L23/00H01J40/14
    • H04B10/66
    • The method and apparatus for compensating a photo-detector allows both regulation and monitoring of the photo-detector to be performed with a common digital controller. The controller accepts input of monitored operational parameters including received signal strength and temperature. The controller provides as an output a bias control signal which regulates a positive the positive or negative side bias voltage power supply for the photo-detector. The controller maintains the bias voltage to the photo-detector at levels which optimize the gain and signal-to- noise ratios for the photo-detector thereby facilitating the decoding of the received signal over a broad range of signal strengths and temperatures. The controller includes a corresponding digital signal strength and temperature compensators the outputs of which summed with a summer to provide the bias control signal. The digital signal strength compensator also provides as an output a monitor signal a level of which corresponds to the actual signal strength received by the photo-detector after compensation for the variable gain of the photo-detector resulting from the bias voltage level. A transceiver as well as methods and means for monitoring a photo-detector are also disclosed.
    • 用于补偿光电检测器的方法和装置允许用公共数字控制器执行光检测器的调节和监视。 控制器接受监控的操作参数的输入,包括接收的信号强度和温度。 控制器提供偏置控制信号作为输出,该偏置控制信号调节用于光电检测器的正或负侧偏置电压电源。 控制器将光电检测器的偏置电压维持在优化光检测器的增益和信噪比的水平,从而便于在宽范围的信号强度和温度下对接收信号进行解码。 控制器包括相应的数字信号强度和温度补偿器,其输出与加法器相加以提供偏置控制信号。 数字信号强度补偿器还提供监视信号,其电平对应于由光电检测器在补偿由偏置电压电平产生的光检测器的可变增益之后接收的实际信号强度。 还公开了收发器以及用于监测光检测器的方法和装置。
    • 9. 发明公开
    • 승강기 미끄럼 도어용 간섭 보상 광학 동기화 안전 감지시스템
    • 干扰补偿用于电梯滑动门的光学同步安全检测系统
    • KR1020050091727A
    • 2005-09-15
    • KR1020057011029
    • 2002-12-31
    • 오티스 엘리베이터 컴파니
    • 푸스텔니악리차드
    • B66B13/24H01J40/14B66B13/26
    • B66B13/26G01V8/10
    • A method for detecting interference energy in a sliding door safety system (10) comprising the steps of disposing at least one emitter (11) along a first vertical surface, disposing at least one receiver (17) corresponding to the at least one emitter along a second vertical surface, activating the at least one receiver, activating the at least one emitter to emit an energy beam (23) comprising a modulated square wave of a predetermined frequency, sampling an energy intensity received by the activated at least one receiver a predetermined number of times recording each time a received energy intensity to form a plurality of recorded energy intensities, selecting the lowest magnitude one of the plurality of recorded energy intensities to form a lowest recorded energy intensity, comparing the lowest recorded energy intensity to a threshold value and determining a source of the energy intensity to be external when the lowest recorded energy intensity is less than the threshold value.
    • 一种用于检测滑动门安全系统(10)中的干扰能量的方法,包括以下步骤:沿着第一垂直表面布置至少一个发射器(11),沿着至少一个发射器设置至少一个接收器(17) 激活所述至少一个接收器,激活所述至少一个发射器以发射包括预定频率的调制方波的能量束(23),对由所述激活的至少一个接收器接收到的预定数量的能量强度进行采样 的时间记录每次接收到的能量强度以形成多个记录的能量强度,选择多个记录的能量强度中的最低量级以形成最低的记录能量强度,将最低记录的能量强度与阈值进行比较并确定 当最低记录能量强度小于阈值时,能量强度的来源是外部的。