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1. 发明授权

US5767500A Automatic identification of hardware 失效
标题翻译：自动识别硬件
公开(公告)号：US5767500A
公开(公告)日：1998-06-16
申请号：US597694
申请日：1996-02-06
申请人： Kevin Cordes , Ellen Oppenheim , Donna Pandolfo , Robert May , Joseph Campanelli , Thomas Bianculli
发明人： Kevin Cordes , Ellen Oppenheim , Donna Pandolfo , Robert May , Joseph Campanelli , Thomas Bianculli
IPC分类号： G06K7/10
CPC分类号： G06K7/10881 , G06K7/1098
摘要： A hardware identification system is provided in a bar code reading arrangement including a main body and a plurality of modular detachable scanning heads connectable to the main body dependent on the application desired for the reader. Each of the heads includes a voltage divider dividing identification voltage and the main body includes a microprocessor including an analog to digital converter which reads the identification voltage, converts it to a digital signal and compares the identification voltage against a look-up table of identification voltages and their associated hardware element to identify the module type. Alternatively, or in addition, the module may be similarly configured to identify the main body by virtue of an identification voltage defined by a voltage divider in the main body. Alternatively the hardware identification system includes an electronic subassembly such as a PC board used for example in computer systems for automatic identification of hardware.
摘要翻译：在条形码读取装置中提供硬件识别系统，该系统包括主体和多个可连接到主体的可拆卸扫描头，取决于读取器所需的应用。每个头包括分压器分隔识别电压，并且主体包括微处理器，其包括读取识别电压的模数转换器，将其转换为数字信号，并将识别电压与识别电压的查找表进行比较及其相关联的硬件元素来标识模块类型。或者或另外，模块可以类似地构造成通过由主体中的分压器限定的识别电压来识别主体。或者，硬件识别系统包括电子子组件，例如用于例如用于自动识别硬件的计算机系统中的PC板。

2. 发明授权

US5734152A Optical scanners and signal processors therefor 失效
标题翻译：光学扫描仪和信号处理器
公开(公告)号：US5734152A
公开(公告)日：1998-03-31
申请号：US454830
申请日：1995-05-31
申请人： David Goren , Stephen Shellhammer , Harry Kuchenbrod , Donna Pandolfo , Gary Serbin , Guy Cipriani , Edward Barkan
发明人： David Goren , Stephen Shellhammer , Harry Kuchenbrod , Donna Pandolfo , Gary Serbin , Guy Cipriani , Edward Barkan
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： G06K7/10851 , G06K7/14 , G06K7/1452 , G06K7/1478
摘要： An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code. The system includes an optical scanner for scanning beam of light over the spatial distribution of indicia and for producing an electrical signal corresponding to changes in the degree of reflectivity of the indicia. A digitizer, responsive to detections in a predetermined characteristic of the produced electrical signal is provided. The digitizer converts the detections into digital words, such digital signals having a plurality of bits. The digitizer includes a timing generation circuit for producing a pulse in response to each one of the detections with a time duration representative of the degree of reflectivity of the indicia as the beam of light. A decoder converts the time duration of the pulse into the digital word having a plurality of bits. An enhancement filter is also disclosed. The enhancement filter modifies pulses produced by a differentiator circuit used in the scanner. Such modification includes increasing the rise time, and peak level of, the pulses produced by the differentiator circuit 24.
摘要翻译：提供了一种光学扫描系统，用于产生表示具有不同光反射度的标记的空间分布的信号，例如条形码。该系统包括用于在标记的空间分布上扫描光束并用于产生对应于标记的反射度的变化的电信号的光学扫描器。提供了响应于所产生的电信号的预定特性中的检测的数字转换器。数字转换器将检测器转换为数字字，这样的数字信号具有多个位。数字转换器包括定时产生电路，用于响应于每个检测产生脉冲，其中持续时间代表标记作为光束的反射度。解码器将脉冲的持续时间转换为具有多个位的数字字。还公开了增强滤波器。增强滤波器修改由扫描器中使用的微分电路产生的脉冲。这种修改包括增加由微分电路24产生的脉冲的上升时间和峰值电平。

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