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21. 发明授权

US5907147A Non-contact actuated trigger apparatus for bar code laser scanner 失效
标题翻译：用于条形码激光扫描仪的非接触式启动触发装置
公开(公告)号：US5907147A
公开(公告)日：1999-05-25
申请号：US873948
申请日：1997-06-12
申请人： Chay La
发明人： Chay La
IPC分类号： G06K7/10
CPC分类号： G06K7/10891 , A41D19/0024 , H01H2009/0221
摘要： The system, which is especially suitable for use as a bar code scanner trigger which allows for hands-free scanner operation and non-contact triggering of the scanner by the operator, in one embodiment, comprises a switch and a switch actuator, with the switch mounted proximate to a movable part of the body, and the switch actuator located on the movable part of the body, which part is movable so as to move the switch actuator and switch to within a predetermined proximity of one another and thereby actuate the switch, which will actuate the electronic equipment switched thereby. After the switch has been actuated, moving the part of the body with the switch actuator thereon so as to move the switch actuator and switch beyond a predetermined proximity of one another will deactuate the switch, and thereby deactivate the electronic equipment switched thereby. In an exemplary embodiment, the switch actuator is disposed upon a finger via a switch actuator mount in the form of a glove, and the switch is disposed upon the back of the hand at a point proximate to the finger so that extending a finger as in a pointing motion actuates the switch, thereby activating the equipment and further so that retracting the finger deactuates the switch. In other embodiments multiple switches and switch actuators may be used in conjunction with multiple fingers or digits, and/or with predetermined patterns or combinations of switch actuations required to activate the electronic equipment.
摘要翻译：该系统特别适合用作条形码扫描器触发器，其在一个实施例中允许操作者的免提扫描器操作和非接触触发扫描器，其包括开关和开关致动器，开关安装在本体的可移动部分附近，以及位于主体的可动部分上的开关致动器，该部分可移动，以便将开关致动器和开关移动到彼此预定的接近范围内，从而致动开关，这将驱动由此切换的电子设备。在开关被致动之后，使用开关致动器在其上移动身体的一部分，以便使开关致动器和开关移动超过彼此的预定接近度将使开关停用，从而使由此切换的电子设备失效。在示例性实施例中，开关致动器通过手套形式的开关致动器安装件设置在手指上，并且开关设置在靠近手指的点处的手背上，使得如指向运动致动开关，从而启动设备并且进一步使得缩回手指停止开关。在其他实施例中，多个开关和开关致动器可以与多个手指或数字结合使用，和/或以预定的模式或启动电子设备所需的开关动作的组合使用。

22. 发明授权

US5852286A Method and apparatus for reducing bandwidth limited noise in bar code scanner 失效
公开(公告)号：US5852286A
公开(公告)日：1998-12-22
申请号：US622234
申请日：1996-03-20
申请人： Edward P. Coleman
发明人： Edward P. Coleman
IPC分类号： G06K7/10
CPC分类号： G06K7/10584
摘要： A bar code scanner system includes a laser light source that periodically produces a light beam that is swept across a bar code label. The laser light source is periodically turned "on" and "off" according to a duty cycle. A detector produces a first electric signal representative of received bar code label reflected light and ambient light when the laser light source is on, and produces a second electric signal representative of received ambient light when the light source is "off". A demodulator circuit, coupled to the detector, provides a first gain to the first electric signal and provides a second gain to the second electric signal. The gains applied are selected such that the signal and signal component produced solely as a result of the ambient light will significantly cancel out one another when the signals are combined. A filter, coupled to the demodulator circuit, receives the electric signals from the demodulator circuit and reduces out-of-band signal components such as noise. When the duty cycle of the laser light source is equal to 50%, the first gain is equal to the inverse of the second gain.

23. 发明授权

US5834750A Bar code scanning system for automatically maintaining constant the amplitude of light reflected from a bar code 失效
标题翻译：条码扫描系统，用于自动保持从条形码反射的光的幅度恒定
公开(公告)号：US5834750A
公开(公告)日：1998-11-10
申请号：US524075
申请日：1995-09-06
申请人： Edward P. Coleman , Scott R. Grodevant
发明人： Edward P. Coleman , Scott R. Grodevant
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K2207/1018
摘要： A system for bar code reading and scanning is provided having automatic bar code signal size control. In the first embodiment of the system, a processor selects on successive scans of a bar code one of a plurality of different optical power levels from a laser diode which provides a light beam illuminating the bar code. This selection is responsive to the size of the signal from a photo-detector which receives returned light from the bar code during scanning. The signal size is detected by a signal size detecting circuit, and is measured by the processor during scanning. In a second embodiment of the system, the processor calculates an optical power level after every two consecutive scans across the bar code. The laser power level is calculated differently for alternative scans occurring in different orders (even or odd counting from the first scan). For even scans, the power is calculated based upon signal size and power level on one of the prior two scans of the bar code, while for odd numbered scans (except the first scan), the power level is in a proportionately opposite relationship to the power level on the prior scan about an average power level. In a third embodiment of the system, the processor calculates the power for the next scan after each scan across the symbol. This calculation is responsive to the power level and the detected signal size of the preceding scan. In both the second and third embodiments, the laser is set to a starting power level on the first scan of the bar code.
摘要翻译：提供了一种用于条形码读取和扫描的系统，其具有自动条形码信号尺寸控制。在系统的第一实施例中，处理器从提供照射条形码的光束的激光二极管连续扫描多个不同光功率电平中的一个的条形码。该选择响应于来自光电检测器的信号的大小，光电检测器在扫描期间从条形码接收返回的光。信号尺寸由信号尺寸检测电路检测，在扫描期间由处理器测量。在该系统的第二实施例中，处理器在跨条形码的每两次连续扫描之后计算光功率水平。对于以不同顺序发生的替代扫描（从第一次扫描的偶数或奇数计数），激光功率电平的计算方式不同。对于偶数扫描，根据信号大小和条形码的先前两次扫描之间的功率电平计算功率，而对于奇数扫描（除第一次扫描之外），功率电平与关于平均功率水平的先前扫描的功率水平。在系统的第三实施例中，处理器在穿过符号的每次扫描之后计算下次扫描的功率。该计算响应于先前扫描的功率电平和检测到的信号大小。在第二和第三实施例中，激光器在条形码的第一扫描上被设置为起始功率电平。

24. 发明授权

US5821721A Motor control system especially for control of an optical scanner 失效
标题翻译：电机控制系统特别适用于光学扫描仪的控制
公开(公告)号：US5821721A
公开(公告)日：1998-10-13
申请号：US837817
申请日：1997-04-22
申请人： Raymond J. Boyd , Edward C. Bremer
发明人： Raymond J. Boyd , Edward C. Bremer
IPC分类号： H02P7/06 , G06K7/10 , H02P6/18 , H02P8/12 , H02P8/20 , A02K29/08
CPC分类号： G06K7/10851 , H02P6/182 , H02P8/12 , H02P8/20 , G06K2207/1016
摘要： A light beam, which scans in opposite directions across a bar code, is controlled in velocity and scan angle by monitoring the voltage across a winding of a motor, such as one of the phase windings of a two phase stepper motor, which causes the beam to scan across a field of view where the bar code is located. In order to enable the winding, which carries current for driving the motor, circuitry that inhibits the voltage from inductive generation (the back EMF) into the winding during periods when the drive current is applied to the motor. The drive current is applied in pulses, and preferably in groups of pulses, which groups recur periodically. In one embodiment of the invention, which utilizes a motor with two phase windings, the groups of pulses are applied alternately to different ones of the windings and the voltage due to inductive generation is derived from one of these windings during the time period where the pulses are applied to the other winding. In another embodiment, a motor having a single winding is used. Here, the inductively generated voltage is derived during an interval between successive drive pulses. The peak value of the inductive component is proportional to scan angle and beam velocity and is derived for use in a programmed microprocessor that varies the duration of the drive pulses in order to maintain the beam velocity and scan angle at preset, desired values.
摘要翻译：通过监视电动机的绕组（例如两相步进电动机的相绕组之一）上的电压，以速度和扫描角度来控制沿条形码在相反方向扫描的光束，这导致光束扫描条形码所在的视野。为了使驱动电动机的电动机的绕组能够在驱动电流施加到电动机的时段期间阻止电压感应产生（反电动势）进入绕组的电路。脉冲施加驱动电流，优选以脉冲组施加，这些组周期性地重复发生。在利用具有两相绕组的电动机的本发明的一个实施例中，脉冲组被交替地施加到不同的绕组，并且在这些时间段期间从这些绕组中的一个导出由于感应产生的电压，被施加到另一个绕组。在另一个实施例中，使用具有单个绕组的电动机。这里，在连续驱动脉冲之间的间隔期间导出感应发电电压。电感分量的峰值与扫描角和光束速度成比例，并被导出用于编程的微处理器，其改变驱动脉冲的持续时间，以便将光束速度和扫描角度保持在预设的期望值。

25. 发明授权

US5796222A System for driving and controlling the motion of an oscillatory electromechanical system especially suitable for use in an optical scanner 失效
标题翻译：用于驱动和控制特别适用于光学扫描仪的振荡机电系统的运动的系统
公开(公告)号：US5796222A
公开(公告)日：1998-08-18
申请号：US699223
申请日：1996-08-09
申请人： Scott R. Grodevant
发明人： Scott R. Grodevant
IPC分类号： G06K7/10 , H02K29/08
CPC分类号： G06K7/10851 , G06K7/10643 , G06K2207/1016
摘要： A computerized control system for driving an rotor which can carry a laser or a beam deflecting mirror and is actuated by a coil thereon electromagnetically coupled to a fixed magnet or a stepper motor coil. The rotor can be part of an electromechanical oscillatory system supported by flexures or the stepper motor can be electrically biased to produce, electrodynamically a restoring force. The back EMF of the coil is sensed, translated into successive digital signals which are processed in accordance with programs in firmware of the computer to generate driving pulses which are applied to the coil to obtain desired displacement motion of oscillation suitable for scanning the beam.
摘要翻译：一种用于驱动转子的计算机化控制系统，该转子可携带激光或光束偏转镜并由其上电磁耦合到固定磁体或步进电动机线圈上的线圈致动。转子可以是由挠曲件支撑的机电振荡系统的一部分，或者步进电机可以被电偏置以电动地产生恢复力。线圈的反电动势被感测，转换为根据计算机的固件中的程序处理的连续的数字信号，以产生施加到线圈的驱动脉冲，以获得适于扫描光束的期望的振荡位移运动。

26. 发明授权

US5786585A Optical symbol (bar code) reading systems and devices 失效
标题翻译：光学符号（条码）读取系统和设备
公开(公告)号：US5786585A
公开(公告)日：1998-07-28
申请号：US375216
申请日：1995-01-19
申请人： Jay M. Eastman , James M. Zavislan
发明人： Jay M. Eastman , James M. Zavislan
IPC分类号： G02B3/08 , G02B5/18 , G02B26/10 , G02B27/44 , G06K20060101 , G06K7/10
CPC分类号： G06K7/10881 , G02B26/10 , G02B27/4227 , G06K7/10653 , G06K7/1098 , G06K2007/10524 , G06K2207/1013 , G06K2207/1016
摘要： A miniature scan engine module for bar code reading and data collection systems utilizes a light source 44 and a light collector 42, which in one embodiment, are flexurally supported on a platform 62 which reciprocates 88 on pivots defined by flexures 46, 48 or 96. The optical collector faces the bar code and pivots with the scanning beam source (a laser diode). A diffraction grating or Fresnel lens on the surface of the optical collector which faces the code directs the incoming light so that it propagates internally in a substrate within the body of the collector, i.e. in the optic itself and without air paths which require additional volume in the module, to a photodetector. The scan engine can be configured so that it occupies a volume of less than 1 cubic inch. A data collection system, in the form of a portable terminal 10, has a housing which provides the handle 12 of a scanning accessory. The housing of the accessory has a receptacle for a terminal unit 14 which is separable from the accessory's housing.
摘要翻译：用于条形码读取和数据收集系统的微型扫描引擎模块使用光源44和光收集器42，其在一个实施例中弯曲地支撑在平台62上，平台62在由挠曲件46,48或96限定的枢轴上往复运动88。光收发器面对条形码并与扫描光束源（激光二极管）枢转。面向代码的光学收集器表面上的衍射光栅或菲涅耳透镜引导入射光，使得其在集电体的主体内的衬底内部传播，即在光学器件本身中，并且没有需要额外体积的空气路径该模块到光电检测器。扫描引擎可以被配置为使其占据小于1立方英寸的体积。以便携式终端10的形式的数据收集系统具有提供扫描附件的手柄12的壳体。附件的壳体具有用于终端单元14的插座，其可与附件的壳体分离。

27. 发明授权

US5767502A Grip-conforming trigger mechanism for a hand-held bar code scanner 失效
标题翻译：手持式条形码扫描器的抓握式触发机构
公开(公告)号：US5767502A
公开(公告)日：1998-06-16
申请号：US735378
申请日：1996-10-21
申请人： Albert J. Ferland , Christopher J. Lundgren
发明人： Albert J. Ferland , Christopher J. Lundgren
IPC分类号： G06K7/10
CPC分类号： G06K7/10881
摘要： An integrally molded trigger body has a mounting portion received through an opening in an upper portion of a handle of a hand-held bar code scanner and pivotably mounted in the handle under spring bias. The trigger body has a tongue portion extending outwardly of the handle and downwardly beyond the opening toward a grip section of the handle. The tongue portion is contoured to conform with the contour of the grip section when the trigger body is depressed by a user of the scanner so as to actuate the scanning and reading modes.
摘要翻译：整体模制的触发器主体具有通过手持条形码扫描器的手柄的上部中的开口接收的安装部分，并且在弹簧偏压下可枢转地安装在手柄中。触发器主体具有从手柄向外延伸的舌部，并向下朝向手柄的把手部分向下延伸。当触发器被扫描仪的使用者按下以便致动扫描和读取模式时，舌部的轮廓与轮廓相一致。

28. 发明授权

US5750976A Optical system for scanning and reading bar codes which is adapted to be configured in a hand held unit 失效
标题翻译：用于扫描和读取适于配置在手持单元中的条形码的光学系统
公开(公告)号：US5750976A
公开(公告)日：1998-05-12
申请号：US536787
申请日：1995-09-29
申请人： Jay M. Eastman , Anna Marie Quinn
发明人： Jay M. Eastman , Anna Marie Quinn
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K7/10584 , G06K7/10594 , G06K7/10633 , G06K7/10683 , G06K7/10811 , G06K7/10881 , G06K2207/1012 , G06K2207/1016 , G06K2207/1018
摘要： A unitary hand-held bar code scanner and reader produces an elliptical beam, oriented with its major axis along the direction of the bars, utilizing optics employing far field diffraction effects to shape the beam and maintain its elliptical aspect (length to width ratio) constant over a distance in front of the scanner were bar codes may be located. The optics eliminates parallax even though the photodetector and light source (preferably a laser diode) are located offset from each other on a board on which the optics are mounted. A housing assembly has channels which mount the board therein without shock absorbing devices. A digital microcomputer controller and peripheral devices regulate the optical power output from the laser diode and prevents catastrophic failure, if the electrical current through the laser diode exceeds safe limits. Digital control of the gain of the electronic circuits which provide the signals from which bar code information can be decoded and for the operation and control of a motor for oscillating a deflector which scans the beam across the code are also provided utilizing the microcomputer. The microcomputer also controls interface circuits to provide compatibility with auxiliary equipment and host computers which generate commands and requires data inputs of various polarity and format.
摘要翻译：单一的手持式条形码扫描器和读取器产生椭圆形光束，其长轴沿着条的方向定向，利用采用远场衍射效应的光学器件来形成光束并保持其椭圆形方向（长宽比）恒定扫描仪前面的距离可能位于条形码。即使光电检测器和光源（优选地是激光二极管）在安装光学器件的板上彼此偏移地定位，光学器件消除了视差。壳体组件具有将板安装在其中而没有减震装置的通道。如果通过激光二极管的电流超过安全限制，数字微机控制器和外围设备调节激光二极管的光功率输出并防止灾难性故障。提供可以解码条形码信息的信号的电子电路的增益的数字控制以及用于振荡跨越码的扫描光束的偏转器的电动机的操作和控制也利用微型计算机提供。微型计算机还控制接口电路以提供与辅助设备和生成命令的主计算机的兼容性，并且需要各种极性和格式的数据输入。

29. 发明授权

US5699161A Method and apparatus for measuring dimensions of objects on a conveyor 失效
标题翻译：用于测量输送机上物体尺寸的方法和装置
公开(公告)号：US5699161A
公开(公告)日：1997-12-16
申请号：US507625
申请日：1995-07-26
申请人： Mark R. Woodworth
发明人： Mark R. Woodworth
IPC分类号： G01B11/00 , G01B11/04 , G01B11/24 , G01B11/14 , G01B11/28
CPC分类号： G01B11/00 , G01B11/04
摘要： A method and apparatus for measuring the length, width, and height of rectangular solid objects moving on a conveyor. The apparatus includes a light curtain, two laser triangulation range finders, and a pulse tachometer mounted on a frame around a conveyor. As an object is conveyed through the frame, measurements from each of the sensors are correlated by a digital computer to estimate the length, width and height of the object. The method and apparatus does not require a break in the surface of the conveyor, and is insensitive to object placement and orientation on the conveyor.
摘要翻译：用于测量在输送机上移动的矩形固体物体的长度，宽度和高度的方法和装置。该装置包括一个光幕，两个激光三角测距仪和一个安装在传送带周围框架上的脉冲转速计。当通过框架传送物体时，来自每个传感器的测量值由数字计算机相关，以估计物体的长度，宽度和高度。该方法和设备不需要在输送机的表面上断裂，并且对输送机上的物体放置和取向不敏感。

30. 发明授权

US5654534A Hand held or hand mounted bar code scanning device having a display which pivots between an open and closed position 失效
标题翻译：具有在打开和关闭位置之间枢转的显示器的手持式或手持式条形码扫描装置
公开(公告)号：US5654534A
公开(公告)日：1997-08-05
申请号：US407172
申请日：1995-03-21
申请人： Edward P. Coleman
发明人： Edward P. Coleman
IPC分类号： G06K7/10
CPC分类号： G06K7/10881
摘要： A bar code hand held scanning terminal which combines a data input device, a display and a scanning engine in a single portable unit. This unit is compact and may be employed in, for example, a scanning terminal which is attached to the back of a hand of an operator. Alternatively, the unit may be employed in a gun-type hand held scanning terminal. The combination has a display which is pivotally connected to the hand held scanning terminal such that the display may be in an open position or in a closed position. A light sensor is used to detect the opening or closing of the display portion of the hand held scanning terminal and maybe used to selectively deactivate the scanning beam when the display is open. The scanning device may be used to read bar code labels for inventory or warehousing, in medical prescription distribution, etc.
摘要翻译：一种条形码手持扫描终端，其在单个便携式单元中组合数据输入装置，显示器和扫描引擎。该单元是紧凑的，并且可以用于例如附接到操作者的手背的扫描终端。或者，该单元可以用于枪式手持式扫描终端。该组合具有枢转地连接到手持式扫描终端的显示器，使得显示器可以处于打开位置或处于关闭位置。光传感器用于检测手持扫描终端的显示部分的打开或关闭，并且可以用于当显示器打开时选择性地禁用扫描光束。扫描装置可用于读取库存或仓储的条形码标签，医疗处方分发等。

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