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11.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：US07456742B2
公开(公告)日：2008-11-25
申请号：US11467990
申请日：2006-08-29
申请人： Robert T. Cato
发明人： Robert T. Cato
IPC分类号： G08B13/14
CPC分类号： G01S3/781 , A47F10/02 , B62B3/1428 , G01S5/16
摘要： A mobile platform such as a shopping cart, flatbed cart or lift truck is provided with a plurality of radiation detectors which are screened or limited in scope of view and which cooperate with circuitry which can distinguish from the interaction of the sensors with emitters the position of the platform. Position consists of location and orientation. Each detector or sensor is screened to limit its view to a defined portion of a sphere.
摘要翻译： 诸如购物车，平板车或起重车的移动平台设置有多个在视野范围内被屏蔽或限制的辐射检测器，并且与电路协调，该电路可以区分传感器与发射器的位置， 的平台。 位置由位置和方向组成。 筛选每个检测器或传感器以将其视图限制为球体的限定部分。
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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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14.发明授权
公开(公告)号：US4758058A
公开(公告)日：1988-07-19
申请号：US3014
申请日：1987-01-12
CPC分类号： G06K7/10871 , G02B26/106
摘要： A holographic scanner includes a rotating glass disk carrying a plurality of scan line generating holograms, a laser light source and means for detecting reflected optical energy. The scanner is improved by adding a plurality of relatively small position-indicating holograms in alternation with the scan line generating holograms. The position-indicating holograms redirect the laser beam along desired paths on the same side of the disk as the laser. The redirected laser beam may be detected by the system photodetector or an auxiliary photodetector to provide signals indicating the current disk position. The position information can be used by a system processor to optimize scanner parameters as a function of the characteristics of the next active scan line generating hologram.
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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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公开(公告)号：US4548463A
公开(公告)日：1985-10-22
申请号：US579635
申请日：1984-02-13
CPC分类号： G06K7/10871 , G02B26/106
摘要： Operating parameters for a multiple facet holographic disc scanner are adjusted on real time basis as a function of the actual diffraction efficiency of the facet region aligned with the impinging laser beam. The operating parameters are adjusted to achieve optimum signal levels independent of facet characteristics. Diffraction efficiency is inversely related to zero order beam power for a given level of input beam power. A photodetector measures the zero order beam power. The output of this photodetector is used to control video amplifier gain and/or semiconductor laser current.
摘要翻译： 作为与冲击激光束对准的小面区域的实际衍射效率的函数，实时地调整多面全息光盘扫描器的操作参数。 操作参数被调整以实现独立于小平面特征的最佳信号水平。 对于给定的输入光束功率，衍射效率与零级光束功率成反比。 光电检测器测量零级光束功率。 该光电检测器的输出用于控制视频放大器增益和/或半导体激光电流。
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17.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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公开(公告)号：US07789304B2
公开(公告)日：2010-09-07
申请号：US11464916
申请日：2006-08-16
申请人： Robert T. Cato , Thomas J. Sluchak
发明人： Robert T. Cato , Thomas J. Sluchak
CPC分类号： B62B3/1424 , B62B3/1408 , B62B3/1416 , G06F21/84 , G06F2221/2149
摘要： A method for controlling a display device, such as, for example, the display device mounted on a shopping cart, the shopping cart having a wheeled base and a basket portion in connection with the wheeled base and a handle in connection with the wheeled base, the method comprising: allowing a user to enter information at and obtain information from the display device; and providing a locking mechanism located on or implemented within the device for permitting the user to activate or deactivate the display device in order to prevent unauthorized access.
摘要翻译： 一种用于控制显示装置的方法，例如安装在购物车上的显示装置，具有轮式底座的购物车和与轮式底座相连的筐部分和与轮式底座连接的把手， 该方法包括：允许用户在显示设备上输入信息并从显示设备获取信息; 以及提供位于设备上或实现在设备内的锁定机构，以允许用户激活或停用显示设备，以防止未经授权的访问。
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公开(公告)号：US07547087B2
公开(公告)日：2009-06-16
申请号：US11678288
申请日：2007-02-23
IPC分类号： B41J29/393
CPC分类号： B41J2/0458 , B41J2/0451 , B41J2/04541
摘要： A fault detector apparatus for a printer having a first print head and a second print head with a plurality of print head elements in each print head is disclosed. The apparatus includes a test circuit in signal communication with all the print heads to test the plurality of print head elements. The test circuit includes a test power supply for generating a test voltage, a first resistor, a second resistor, and an analog to digital converter in signal communication with the second resistor. The first resistor is in series connection between the test power supply and the plurality of elements in the first print head. The second resistor in series connection with the test power supply, the first resistor, and the plurality of elements in the second print head. The fault detector apparatus will also work for a printer with only one print head.
摘要翻译： 公开了一种用于打印机的故障检测装置，其具有在每个打印头中具有多个打印头元件的第一打印头和第二打印头。 该装置包括与所有打印头信号通信以测试多个打印头元件的测试电路。 测试电路包括用于产生测试电压的测试电源，第一电阻器，第二电阻器和与第二电阻器进行信号通信的模数转换器。 第一电阻器在测试电源和第一打印头中的多个元件之间串联连接。 与测试电源串联连接的第二电阻器，第一电阻器和第二打印头中的多个元件。 故障检测器装置也可用于仅具有一个打印头的打印机。
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20.发明授权Enabling safe use of high power laser for laser marking in a free space environment 失效在自由空间环境中实现激光打标的安全使用公开(公告)号：US07529636B1
公开(公告)日：2009-05-05
申请号：US12123004
申请日：2008-05-19
申请人： Robert T. Cato
发明人： Robert T. Cato
IPC分类号： B23K26/30
CPC分类号： G06K1/126
摘要： The present invention discloses a marking system (102) which detects an identifying feature (112) on an item (110) in a field of view (114), and creates a mark or annotation (204, 208) on the item using a laser source (120). While the marking process commences, the system monitors the field of view to detect if the field of view changes in an unacceptable way. Such unacceptable changes include if the item is removed from the field of view or if the field of view has become obstructed (712), potentially creating an unsafe exposure to the laser source. Upon detecting such a condition the laser source is shut down (718) within a prescribed period of time to prevent an unsafe exposure.
摘要翻译： 本发明公开了一种在视场（114）中检测物品（110）上的识别特征（112）的标记系统（102），并使用激光器在物品上创建标记或注释（204,208） 来源（120）。 当标记过程开始时，系统监视视野，以检测视野是否以不可接受的方式改变。 这种不可接受的改变包括如果物品从视野中移除或者如果视野已经被阻挡（712），则可能产生对激光源的不安全的暴露。 在检测到这种情况下，激光源在规定的时间内关闭（718）以防止不安全的暴露。
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