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1. 发明申请

US20070119933A1 Optical encoder with contamination detection 有权
标题翻译：具有污染检测的光学编码器
公开(公告)号：US20070119933A1
公开(公告)日：2007-05-31
申请号：US11287966
申请日：2005-11-28
申请人： Yee Chin , Jiin Cheong
发明人： Yee Chin , Jiin Cheong
IPC分类号： G06K7/10
CPC分类号： G01D3/08
摘要： An optical unit includes an optical emitter receiving an optical emitter current, an optical sensor receiving an optical sensor current and light from the optical emitter and in response thereto outputting at least one signal indicating relative movement between the optical unit and an optical code scale, and an optical sensor current detector comparing the optical sensor current to a reference value. In response to the optical sensor current being different than the reference value, the optical sensor current detector outputs an optical sensor current detector signal. The optical sensor current detector signal indicates the presence of a contaminant in a light path from the optical emitter to the optical sensor, and is used to regulate the current to the optical emitter so as to counteract the negative effects of the contaminant in the light path.
摘要翻译：光学单元包括接收光发射器电流的光发射器，接收来自光发射器的光学传感器电流和光的光学传感器，并且响应于此输出至少一个指示光学单元和光学代码量表之间的相对运动的信号，以及将光学传感器电流与参考值进行比较的光学传感器电流检测器。响应于光学传感器电流不同于参考值，光学传感器电流检测器输出光学传感器电流检测器信号。光学传感器电流检测器信号指示在从光发射器到光学传感器的光路中存在污染物，并且用于调节到光发射器的电流，以便抵消光路中污染物的负面影响。

2. 发明申请

US20070241270A1 Multi-axis optical encoders 有权
标题翻译：多轴光学编码器
公开(公告)号：US20070241270A1
公开(公告)日：2007-10-18
申请号：US11403999
申请日：2006-04-14
申请人： Saiful Saidan , Theng Yeoh , Chiang Cheah , Jiin Cheong , Chin Yeoh
发明人： Saiful Saidan , Theng Yeoh , Chiang Cheah , Jiin Cheong , Chin Yeoh
IPC分类号： G01D5/34
CPC分类号： G01D5/34715
摘要： An optical encoding apparatus for the detection of position and/or motion of a mechanical device includes a codescale, an encoder housing having one or more portions and a light-detecting sensor embedded within the encoder housing, wherein the light-detecting sensor is capable of sensing a pattern produced by the codescale superimposed on the light-detecting sensor, and wherein the light-detecting sensor includes a two-dimensional array of light detection elements having dimensions n-by-m where n and m are both integers greater than 4.
摘要翻译：一种用于检测机械装置的位置和/或运动的光学编码装置包括码片，具有一个或多个部分的编码器壳体和嵌入在编码器外壳内的光检测传感器，其中光检测传感器能够感测由叠加在光检测传感器上的码量产生的图案，并且其中所述光检测传感器包括尺寸为n×m的光检测元件的二维阵列，其中n和m都是大于4的整数。

3. 发明申请

US20060226379A1 Media recognition using a single light detector 有权
标题翻译：使用单个光检测器进行介质识别
公开(公告)号：US20060226379A1
公开(公告)日：2006-10-12
申请号：US11102411
申请日：2005-04-08
申请人： Jiin Cheong , Boon Tan , Saiful Saidan , Sze Lee
发明人： Jiin Cheong , Boon Tan , Saiful Saidan , Sze Lee
IPC分类号： G01N21/86
CPC分类号： G01N21/55 , B41J11/009
摘要： Media type is detected. A light beam is produced. The intensity of a specular reflectance component of the light beam is detected. The specular reflectance component results from the light beam being reflected off media. An indication of detected intensity of the specular reflectance component is compared to a mapping to determine media type of the media. The mapping maps detected intensity of the specular reflectance component to media type. The mapping uses only the detected intensity of the specular reflectance component, and no other components of light, to map detected intensity of the specular reflectance component to media type.
摘要翻译：检测到介质类型。产生光束。检测光束的镜面反射分量的强度。来自光束的镜面反射分量由介质反射。将检测到的镜面反射率分量的强度的指示与映射进行比较以确定介质的介质类型。映射将检测到的镜面反射分量的强度映射到介质类型。映射仅使用检测到的镜面反射分量的强度，并且没有其他光的分量来将检测到的镜面反射分量的强度映射到介质类型。

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