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公开(公告)号：US4713785A
公开(公告)日：1987-12-15
申请号：US724435
申请日：1985-04-18
申请人： Douglas C. Antonelli , Patricia M. Branscomb , Eric C. Broockman , LeRoy D. Dickson , Caralee P. Koppel , Richard Ossowski , Olen L. Stokes, Jr.
发明人： Douglas C. Antonelli , Patricia M. Branscomb , Eric C. Broockman , LeRoy D. Dickson , Caralee P. Koppel , Richard Ossowski , Olen L. Stokes, Jr.
CPC分类号： G06K7/10871 , G06K7/016 , G06Q20/208
摘要： A system is disclosed for preventing processing of duplicative coded label signals generated by a scanner lacking item detectors. The system establishes a variable lockout time as a function of operator performance. Any detected label candidate which duplicates a candidate received within the lockout time is assumed to be duplicative. Any transfer to the terminal is inhibited. Operator performance is tracked by measuring the inter-item arrival times for candidates actually transferred to the terminal. The inter-item arrival times are averaged over a given number of items. The average value is used to select a lockout time which is generally proportional to the average inter-item arrival time.
摘要翻译： 公开了一种用于防止由缺少物品检测器的扫描仪产生的重复编码标签信号的处理的系统。 系统根据操作员的性能建立一个可变的锁定时间。 复制在锁定时间内接收到的候选者的任何检测到的标签候选被假定为重复的。 任何转移到终端被禁止。 通过测量实际转移到终端的候选人的项目间到达时间来跟踪运营商的业绩。 项目间到达时间在给定数量的项目上进行平均。 平均值用于选择通常与物品到达时间平均成正比的锁定时间。
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公开(公告)号：US4717818A
公开(公告)日：1988-01-05
申请号：US878758
申请日：1986-06-26
CPC分类号： G06K7/10871 , G06K7/14 , G06K7/1491
摘要： A method for forming UPC or EAN bar code labels from scans of half labels or less than half labels requires that captured data be examined and classified as being either a first type of data configuration or a second type. A first type includes a given number of numeric characters delimited by both margin and center characters. A second type includes either a margin character or a center character and a given number of numeric characters. Labels are formed, where possible, by using appropriate first type data configurations. If labels cannot be formed using only first type configurations, second type configurations are examined to determine if they could represent different portions of the same region (left or right) of a label. If complementary second type configurations are found, they are merged to form a half label. The formed half label may be further merged with a complementary first type data configuration to form a complete label.
摘要翻译： 从半标签或少于一半标签的扫描形成UPC或EAN条形码标签的方法需要检查捕获的数据并将其分类为第一类型的数据配置或第二类型。 第一种类型包括由边缘和中心字符分隔的给定数量的数字字符。 第二种类型包括边缘字符或中心字符以及给定数量的数字字符。 在可能的情况下，通过使用适当的第一类型数据配置形成标签。 如果仅使用第一类型配置不能形成标签，则检查第二类型配置以确定它们是否可以表示标签的相同区域（左侧或右侧）的不同部分。 如果找到互补的第二类型配置，则它们被合并以形成半标签。 所形成的半标签可以进一步与互补的第一类型数据配置合并以形成完整的标签。
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3.发明授权Optical scanner having multiple, simultaneous scan lines with different focal lengths 失效光学扫描仪具有多个具有不同焦距的同时扫描线
公开(公告)号：US4591242A
公开(公告)日：1986-05-27
申请号：US579634
申请日：1984-02-13
CPC分类号： G06K7/10871 , G06K2207/1013 , G06K2207/1018
摘要： An optical scanner uses frequency modulation and detection techniques to produce and utilize multiple, simultaneous scan patterns in which corresponding scan lines have different focal lengths. Two or more solid state lasers are modulated at unique frequencies. The frequency modulated output beams pass through different combinations of focusing lenses and are deflected by a single beam deflecting apparatus. Light reflected from any scanned object is detected. The resulting multi-frequency signal is applied to a plurality of bandpass filters to separate the returned signal into a plurality of separately decodable signals.
摘要翻译： 光学扫描器使用频率调制和检测技术来产生和利用多个同时的扫描图案，其中对应的扫描线具有不同的焦距。 两个或多个固态激光器以独特的频率进行调制。 频率调制输出光束通过聚焦透镜的不同组合，并被单个光束偏转装置偏转。 检测到从任何扫描对象反射的光。 所产生的多频信号被施加到多个带通滤波器，以将返回的信号分离成多个单独可解码的信号。
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公开(公告)号：US4591236A
公开(公告)日：1986-05-27
申请号：US579633
申请日：1984-02-13
CPC分类号： G06K7/10663
摘要： An optical scanner is improved by securing beam directing holograpic films to the transparent scanner window. The films alter the paths of beams at the window to provide scanning beams suitable for rear or side scanning of label-carrying products. A vertical scanning beam, which sweeps a path parallel to the window's leading edge, might be used to detect the approach of a product to be scanned.
摘要翻译： 通过将导向全息膜的光束固定到透明扫描仪窗口来改进光学扫描仪。 这些胶片改变了窗口处梁的路径，以提供适用于标签承载产品的背面或侧面扫描的扫描光束。 可以使用扫描平行于窗口前缘的路径的垂直扫描光束来检测要扫描的产品的进近。
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公开(公告)号：US4800256A
公开(公告)日：1989-01-24
申请号：US938930
申请日：1986-12-08
CPC分类号： G06K7/10871 , G02B26/106
摘要： An improved holographic scanner includes circuitry for adjusting the frequency with which an analog photodetector signal is sampled in accordance with the focal length of the scanning beam produced by the active holographic facet. Two embodiments are shown. In one embodiment, facet-edge signals are used to track the facets. A processor retrieves a predetermined frequency scaling factor appropriate for each facet. In the other embodiment, a holographic disk carries an auxiliary data track. The track has timing indicia with spatial frequencies dependent upon the focal length of the adjacent facet. The timing indicia are used to control the output of a voltage controlled oscillator in a circuit including a phase locked loop.
摘要翻译： 改进的全息扫描器包括用于根据由有源全息小面产生的扫描光束的焦距调整模拟光电检测器信号被采样的频率的电路。 示出了两个实施例。 在一个实施例中，小面边缘信号用于跟踪小平面。 处理器检索适合于每个小面的预定频率缩放因子。 在另一个实施例中，全息盘携带辅助数据轨道。 轨道具有定时标记，其空间频率取决于相邻小面的焦距。 定时指示用于控制包括锁相环的电路中的压控振荡器的输出。
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公开(公告)号：US4728789A
公开(公告)日：1988-03-01
申请号：US938929
申请日：1986-12-08
CPC分类号： G06K7/10871 , G02B26/106
摘要： A fixed position optical scanner with a multi-faceted holographic disk includes circuitry for adjusting the lockout voltage as a function of the focal length of the active facet. The disk position is tracked to identify the active facet. A facet identifying signal is used to address a lockout table in processor memory. A digital value retrieved from the lockout table is converted to analog form and applied through a resistor to a voltage divider in the threshold circuit. The voltage divider scales down a white peak following voltage and compares it to a black peak following voltage. The facet-dependent lockout voltage biases the junction of the voltage divider to vary the effective lockout voltage as a function of the focal length of the currently active facet.
摘要翻译： 具有多面全息光盘的固定位置光学扫描器包括用于根据活动刻面的焦距调整锁定电压的电路。 跟踪磁盘位置以识别活动构面。 面识别信号用于寻址处理器存储器中的锁定表。 从锁定表检索的数字值被转换为模拟形式，并通过电阻器施加到阈值电路中的分压器。 分压器按照电压下降白色峰值，并将其与电压后的黑色峰值进行比较。 面依赖的锁定电压偏压分压器的结，以根据当前活动小面的焦距来改变有效闭锁电压。
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7.发明授权Terminal device having closed chamber communications between functional units 失效在功能单元之间具有闭合室通信的终端设备
公开(公告)号：US4499608A
公开(公告)日：1985-02-12
申请号：US457531
申请日：1983-01-12
CPC分类号： H04B10/801
摘要： A data processing terminal device includes a substantially enclosed optical chamber which serves as a wireless communication "bus" between pluggable functional units such as a controller unit, printer units, display units, etc. Each functional unit includes a transducer having an emitter component for injecting optical energy into the cavity and a detector component for sensing optical energy injected by transducers of other functional units. The energy distribution within the cavity is shaped by elliptic parabolic reflectors, preferably molded integrally with the floor of the chamber structure.
摘要翻译： 一种数据处理终端装置，包括一个基本上封闭的光学室，其用作诸如控制器单元，打印机单元，显示单元等的可插拔功能单元之间的无线通信“总线”。每个功能单元包括具有用于注入 进入腔的光能和用于感测由其他功能单元的换能器注入的光能的检测器部件。 空腔内的能量分布由椭圆形抛物面反射器形成，优选地与室结构的底板一体地模制。
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