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公开(公告)号：US5291564A
公开(公告)日：1994-03-01
申请号：US109692
申请日：1993-08-20
申请人： Govind Shah , David G. Shaw , Donald G. Chandler
发明人： Govind Shah , David G. Shaw , Donald G. Chandler
CPC分类号： G06K7/10861 , G06K7/10851
摘要： An optical target is acquired by an optical scanning system according to an in-band target frequency in an input signal from an optical scanning device. Both the in-band energy level and the out-of-band energy level of the input signal from the optical scanning device are determined. These two energy levels are compared and a possible detection of the target is determined according to this comparison. A minimum threshold of in-band energy is required in order for the possible detection to be confirmed.
摘要翻译： 根据来自光学扫描装置的输入信号中的带内目标频率，通过光学扫描系统获取光学目标。 确定来自光学扫描装置的输入信号的带内能级和带外能级两者。 对这两个能级进行比较，根据该比较确定靶的可能检测。 为了确认可能的检测，需要带内能量的最小阈值。
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公开(公告)号：US4874936A
公开(公告)日：1989-10-17
申请号：US178600
申请日：1988-04-08
CPC分类号： G06K19/06037 , G06K7/1093 , G06K7/1417 , G06K7/1443 , G06K2019/06262 , Y10S283/901
摘要： The article of the invention is an optically readable label for storing encoded information, said label comprising a data energy of a multiplicity of information-encoded hexagons contiguously arranged in a honeycomb pattern, and having at least two different optical properties.A process for encoding information in an optically-readable data array comprised of a honeycomb of contiguous hexagons encoded by assigning optical properties to individual hexagons in a predetermined pattern, ordering the hexagons in a predetermined sequence, and printing the hexagons with at least two optical properties.A process for retrieving information by optically scanning an information-encoded data array of contiguous polygons, preferably hexagons, creating an optical replica of the digital bit stream representative of the optical properties of the information encoded polygons, decoding that optical replica and retrieving the decoded bit stream.A stream for performing the foregoing encoding and decoding processes.
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公开(公告)号：US4896029A
公开(公告)日：1990-01-23
申请号：US330111
申请日：1989-03-31
CPC分类号： G06K19/06037 , G06K7/1093 , G06K7/1417 , G06K7/1443 , G06K2019/06262 , Y10S283/901
摘要： The article of the invention is an optically readable label for storing encoded information, said label comprising a data array of a multiplicity of information-encoded polygons arranged in a predetermined geometric pattern, and said polygons having at least two different optical properties. A process for encoding information in an optically-readable data array comprised of information-encoded polygons by assigning optical properties to individual polygons in a predetermined pattern, ordering the polygons in a predetermined sequence, and printing the polygons with at least two optical properties. A process for retrieving information by optically scanning a data array of information-encoded polygons, preferably hexagons, creating an optical replica of the digital bit stream representative of the optical properties of the information-encoded polygons, decoding that optical replica and retrieving the decoded bit stream. A system for performing the foregoing encoding and decoding processes.
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公开(公告)号：US4998010A
公开(公告)日：1991-03-05
申请号：US438571
申请日：1989-11-16
CPC分类号： G06K19/06037 , G06K7/1093 , G06K7/1417 , G06K7/1443 , G06K2019/06262 , Y10S283/901
摘要： The article of the invention is an optically readable label for storing encoded information, said label comprising a data array of a multiplicity of information-encoded polygons arranged in a predetermined geometric pattern, and said polygons having at least two different optical properties.a process for encoding information in an optically-readable data array comprised of information-encoded polygons by assigning optical properties to individual polygons in a predetermined pattern, ordering the polygons in a predetermined sequence, and printing the polygons with at least two optical properties.A process for retrieving information by optically scanning a data array of information-encoded polygons, preferably hexagons, creating an optical replica of the digital bit stream representative of the optical properties of the information-encoded polygons, decoding that optical replica and retrieving the decoded bit stream.A system for performing the foregoing encoding and decoding processes.
摘要翻译： 本发明的物品是用于存储编码信息的光学可读标签，所述标签包括以预定几何图形排列的多个信息编码多边形的数据阵列，所述多边形具有至少两个不同的光学特性。 通过以预定图案将单独的多边形分配光学特性，以预定顺序排列多边形，并以至少两个光学特性打印多边形，由信息编码的多边形组成的光学可读数据阵列中的信息编码处理。 通过光学扫描信息编码的多边形的数据阵列（优选地六边形）来产生表示信息编码的多边形的光学性质的数字比特流的光学副本，用于检索信息的过程，解码该光学副本并且检索解码的比特 流。 一种用于执行上述编码和解码过程的系统。
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公开(公告)号：US4848556A
公开(公告)日：1989-07-18
申请号：US144610
申请日：1988-01-07
申请人： Govind Shah , Andrew L. Pester , Carl M. Stern
发明人： Govind Shah , Andrew L. Pester , Carl M. Stern
摘要： A low power coin discriminator detects and identifies the denomination of a coin to activate a parking meter, telephone, or vending machine device. Initially the device is in a low power, dormant state. Insertion of a coin into the discrimator trips a switch which produces a wake-up pulse which turns on a microprocessor. The coin falls upon a piezoelectric element, a signal from which causes the microprocessor to activate a photoelectric sensor. The coin moves through the photoelectric sensor which determines the net cross-sectional area of the coin. The microprocessor samples the output of the photoelectric sensor to detect the minimum light incident upon the sensor at the point of maximum eclipse of the light beam. The microprocessor also samples the output of an integrator which integrates the output of the piezoelectric element to produce a numerical value proportional to the mass of the coin. If the output of the photoelectric sensor indicates that the coin is within acceptable limits then the measured mass of the coin is also compared to the corresponding limits. If the coin is deemed to be valid, its denomination is recorded in a conventional manner. Once the discrimination process is complete the circuit automatically returns to its original low power, domant state.
摘要翻译： 低功率硬币鉴别器检测和识别硬币的面额以激活停车计费器，电话机或自动售货机装置。 最初设备处于低功率，休眠状态。 将硬币插入鉴别器跳开产生唤醒脉冲的开关，该唤醒脉冲导通微处理器。 硬币落在一个压电元件上，一个信号使微处理器启动一个光电传感器。 硬币移动通过光电传感器，其确定硬币的净横截面积。 微处理器对光电传感器的输出进行采样，以检测在光束最大偏离点处入射到传感器上的最小光。 微处理器还对积分器的输出采样，该积分器对压电元件的输出进行积分，以产生与硬币质量成比例的数值。 如果光电传感器的输出指示硬币在可接受的限度内，那么硬度的测量质量也与相应的限值进行比较。 如果硬币被认为是有效的，则以现有方式记录其面值。 鉴别过程完成后，电路自动恢复到原来的低功耗状态。
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公开(公告)号：US5982950A
公开(公告)日：1999-11-09
申请号：US331168
申请日：1994-10-28
CPC分类号： G06K7/10851
摘要： A method and system for acquiring an optical target affixed to a surface of a package with an optical scanning device. Height information associated with the height of the surface of the package is sensed and a height signal representative of a scanning distance between the optical target and the optical scanning device is generated. The package surface is scanned with the optical scanning device to generate an optical target input signal. The optical target input signal is converted in accordance with a first sampling frequency to provide a converted input signal, and a second resampling frequency is adjusted in accordance with the height signal. The converted input signal is reconverted in accordance with the second resampling frequency to generate a frequency shifted optical target signal, and the optical target on the surface of the package is acquired in accordance with the frequency shifted optical target signal.
摘要翻译： 一种用光学扫描装置获取附着在包装表面上的光学靶的方法和系统。 感测与包装表面的高度相关联的高度信息，并且生成表示光学对象和光学扫描装置之间的扫描距离的高度信号。 用光学扫描装置扫描封装表面以产生光学目标输入信号。 光学目标输入信号根据第一采样频率被转换以提供转换的输入信号，并且根据高度信号调整第二重采样频率。 转换的输入信号根据第二重采样频率再转换以产生频移光学目标信号，并且根据频移光学目标信号获取包装表面上的光学目标。
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公开(公告)号：US5018131A
公开(公告)日：1991-05-21
申请号：US316987
申请日：1989-02-28
CPC分类号： G02B6/3556 , G02B6/3512 , G02B6/3572 , G02B6/3574 , G02B6/3598
摘要： A switch (10) which uses optical signals propagating through an air media is disclosed. Transmitters (14a-14n) radiate light along projection openings (40) through a solid, opaque housing (12). The projection openings (40) parallel each other and substantially reside in a lower plane (32) within the housing (12). Periscopic plugs (30) reflect such light upward along an intermediate direction (38) within the plugs (30) and out from the plugs (30) into incidence openings (42). The incidence openings (42) parallel each other and substantially reside in an upper plane (34) within the housing (12). Optical receivers (16a-16n) receive light propagating in the incidence openings (42). The incidence openings (42) reside substantially perpendicular to the projection openings (40).
摘要翻译： 公开了使用通过空气介质传播的光信号的开关（10）。 发射器（14a-14n）沿着突出开口（40）通过固体不透明壳体（12）辐射光。 突起开口（40）彼此平行并且基本上位于壳体（12）内的下平面（32）中。 透镜塞（30）沿着塞子（30）内的中间方向（38）向上反射这种光，并且从塞子（30）输出到入射孔（42）中。 入口开口（42）彼此平行并且基本上位于壳体（12）内的上平面（34）中。 光接收器（16a-16n）接收在入射孔（42）中传播的光。 入射孔（42）基本上垂直于突出开口（40）。
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