公开(公告)号：US6092728A

公开(公告)日：2000-07-25

申请号：US352542

申请日：1999-07-12

申请人： Yajun Li ,  Simon Bard ,  Mark Krichever ,  Joseph Katz ,  Chin Tan

发明人： Yajun Li ,  Simon Bard ,  Mark Krichever ,  Joseph Katz ,  Chin Tan

IPC分类号： G06K7/10

CPC分类号： G06K7/10811

摘要： A miniature module emits and focuses a divergent light beam. The focusing module consists of a small-sized light emitter, such as a laser diode, and a micro-optical element seated in a lens holder. The outside diameter of the micro-optical element is 4 mm or less and preferably less than or equal to 2.5 mm. The micro-optical element may be a small conventional lens, a gradient index lens, or one of several types of diffractive optical element. The focal length of the module relative to the light from the emitter is set by sliding the lens holder along its central axis and permanently adhering it in place with respect to the emitter after focusing. During focal adjustment, axial rotation between the lens holder and between the base of the emitter is prevented by a series of notches. The miniature focusing module is smaller, lighter, costs less and may provide a larger relative aperture than the conventional structures currently used for example in solid state laser scanners.

摘要翻译： 微型模块发射和聚焦发散光束。 聚焦模块由诸如激光二极管的小尺寸光发射器和坐在透镜架中的微光学元件组成。 微型光学元件的外径为4mm以下，优选为2.5mm以下。 微型光学元件可以是小型常规透镜，梯度折射率透镜或几种衍射光学元件中的一种。 模块相对于来自发射器的光的焦距通过沿着其中心轴滑动透镜夹持器来设定，并且在聚焦之后相对于发射器永久地将其固定在适当的位置。 在焦距调整期间，通过一系列凹口来防止透镜保持器和发射器的基座之间的轴向旋转。 微型聚焦模块更小，更轻，成本更低，并且可以提供比目前用于例如固态激光扫描仪的常规结构更大的相对孔径。

公开(公告)号：US5710417A

公开(公告)日：1998-01-20

申请号：US463317

申请日：1995-06-02

申请人： Eugene Joseph ,  Yajun Li ,  Duanfeng He ,  Joseph Katz ,  Jerome Swartz

发明人： Eugene Joseph ,  Yajun Li ,  Duanfeng He ,  Joseph Katz ,  Jerome Swartz

IPC分类号： G06K7/10

CPC分类号： G06K7/1417 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10653 ,  G06K7/10722 ,  G06K2207/1011 ,  G06K2207/1016 ,  G06K2207/1017 ,  G06K2207/1018

摘要： A plurality of the areas of differing light reflectivity of a bar code symbol or the like are simultaneously illuminated using, for example, a beam of light that has an elongate cross-section. The light beam is swept over the symbol to be read in a direction transverse to the elongated dimension of the illuminated region so that a two-dimensional area of the symbol is illuminated over time. The reflected light is sensed by a 1D CCD array. A microprocessor within the scanner provides visual feedback to aid a user in aligning the device, and also provides for a selectable aspect ratio for the image, a selectable image resolution and size, a selectable aspect ratio of the illumination, and a selectable pixel size. All of these options may be programmed within the microprocessor, enabling the device to read a large variety of two-dimensional symbols.

摘要翻译： 使用例如具有细长横截面的光束同时照射条形码符号等的不同光反射率的多个区域。 将光束扫过符号以沿与照明区域的细长尺寸横切的方向读取，使得符号的二维区域随时间被照亮。 反射光由1D CCD阵列感测。 扫描仪内的微处理器提供视觉反馈以帮助用户对齐设备，并且还为图像提供可选择的纵横比，可选择的图像分辨率和尺寸，照明的可选纵横比以及可选择的像素尺寸。 所有这些选项都可以在微处理器内进行编程，使设备能够读取大量的二维符号。

公开(公告)号：US5672858A

公开(公告)日：1997-09-30

申请号：US269170

申请日：1994-06-30

申请人： Yajun Li ,  Joseph Katz ,  Jerome Swartz ,  Daniel McGlynn

发明人： Yajun Li ,  Joseph Katz ,  Jerome Swartz ,  Daniel McGlynn

IPC分类号： G06K7/015 ,  G06K7/10

CPC分类号： G06K7/1092 ,  G06K7/10811 ,  G06K2207/1011 ,  G06K2207/1018

摘要： A scanning device for reading indicia of differing light reflectivity, including bar code or matrix array symbols, has a single light emitter, such as a laser or light emitting diode, for generating a scanning light beam to visually illuminate sequential portions of the indicia. A sensor, such as a charge coupled or other solid state imaging device, simultaneously detects light reflected from portions of the indicia and generates an electrical signal representative of the spacial intensity variations the portions of the indicia. The scanning device may also include an ambient light sensor, and a second light emitter for use only in aiming or orienting the scanning device. A photodetector may also be provided to separately detect one symbol virtually simultaneous with the detection of another symbol by the sensor or to provide dual modalities. A method for reading indicia is also provided.

摘要翻译： 用于读取不同光反射率的标记（包括条形码或矩阵阵列符号）的扫描装置具有用于产生扫描光束以目视照亮标记的顺序部分的单个光发射器，例如激光或发光二极管。 诸如电荷耦合或其它固态成像装置的传感器同时检测从标记的部分反射的光，并产生代表标记部分的空间强度变化的电信号。 扫描装置还可以包括环境光传感器和仅用于瞄准或定向扫描装置的第二光发射器。 还可以提供光电检测器以与传感器检测另一个符号同时检测一个符号，或提供双重方式。 还提供了读取标记的方法。

公开(公告)号：US5661290A

公开(公告)日：1997-08-26

申请号：US597882

申请日：1996-02-07

申请人： Simon Bard ,  Yajun Li ,  Jerome Swartz ,  Boris Metlitsky ,  Joseph Katz ,  Askold Strat ,  Harold Charych

发明人： Simon Bard ,  Yajun Li ,  Jerome Swartz ,  Boris Metlitsky ,  Joseph Katz ,  Askold Strat ,  Harold Charych

IPC分类号： G02B26/10 ,  G06F1/16 ,  G06F3/033 ,  G06K7/10 ,  G07F7/02 ,  G07G1/00

CPC分类号： G06K7/10881 ,  G06F1/163 ,  G06F3/0346 ,  G06K7/10564 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10653 ,  G06K7/10871 ,  G06K7/10891 ,  G06Q20/343 ,  G07F7/02 ,  G07G1/0045 ,  G06F2203/0331 ,  G06K2007/10534 ,  G06K2207/1016

摘要： To reduce the size and weight of an optical scanner, the present invention provides a mirrorless beam scanning unit. A flexible support structure, such as one or more strips of mylar, movably mounts the light emitter in response to a motive force, for example as might be applied by a combination of a permanent magnet coupled to the light emitter and a fixedly mounted electromagnet driven by an alternating current signal. Reciprocation of the light emitter during emission of light by the light emitter causes the light to scan a surface, such as a surface beating a bar code label.

摘要翻译： 为了减小光学扫描仪的尺寸和重量，本发明提供一种无反射镜束扫描单元。 柔性支撑结构，例如一个或多个聚酯薄膜条，可响应于动力可移动地安装光发射器，例如可以通过耦合到光发射器的永磁体和固定安装的电磁体驱动 通过交流信号。 光发射器发光期间光发射器的往复使得光线扫描表面，如表面拍打条形码标签。

公开(公告)号：US5521367A

公开(公告)日：1996-05-28

申请号：US285664

申请日：1994-08-03

申请人： Simon Bard ,  Joseph Katz ,  Miklos Stern ,  Yajun Li

发明人： Simon Bard ,  Joseph Katz ,  Miklos Stern ,  Yajun Li

IPC分类号： G06K7/10 ,  G09C5/00

CPC分类号： G06K7/10653 ,  G06K7/10891 ,  G06K2007/10534 ,  G06K2207/1016

摘要： The laser diode of an optical scanning system is located in a separate unit and light therefrom carried to a remote scan head via an optical fiber. This reduces the size and weight of the scan head and reduces the temperature sensitivity of the scan head. The scan head may include an optical sensor for detecting light reflected from scanned symbols. Alternatively, the separate unit may house the sensor, and the same fiber or an additional fiber will collect the reflected light and transmit that light back to the sensor. The invention also encompasses a number of electromagnetic and piezoelectric systems for producing a scanning motion of the beam emitted by the scan head.

摘要翻译： 光学扫描系统的激光二极管位于单独的单元中，并且其中的光通过光纤被传送到远程扫描头。 这减少了扫描头的尺寸和重量，并降低了扫描头的温度灵敏度。 扫描头可以包括用于检测从扫描的符号反射的光的光学传感器。 或者，单独的单元可以容纳传感器，并且相同的光纤或附加光纤将收集反射光并将该光传送回传感器。 本发明还包括用于产生由扫描头发射的光束的扫描运动的许多电磁和压电系统。

公开(公告)号：US5332892A

公开(公告)日：1994-07-26

申请号：US812924

申请日：1991-12-24

申请人： Yajun Li ,  Edward Barkan ,  David P. Goren ,  Joseph Katz

发明人： Yajun Li ,  Edward Barkan ,  David P. Goren ,  Joseph Katz

IPC分类号： G06K7/015 ,  G06K7/10 ,  G06K7/14

CPC分类号： G06K7/10623 ,  G06K7/10801 ,  G06K7/10881 ,  G06K7/14

摘要： The invention facilitates operation of a bar code reader over a wider range of working angle, a wider range of distances from the bar code and a wider range of bar code densities. The invention includes improved optics and sensing elements. To provide a wider depth of field the optics associated with the emitter and or the photodetector have two distinct focal points. In the preferred embodiments, the optics and sensing elements and/or the associated circuitry are arranged to provide two channels of data derived form the scanned bar code. The two channels have differing resolutions. Analysis of the data from the two channels provides a single decoded result. As the working angle and density vary at least one of the resolutions will be appropriate for sensing all or most of the bar coded data. The data from the channel producing a valid result can be used, or if neither channel produces a valid result by itself, data from each channel can be analyzed and valid portions of the data from both channels combined to produce the single decoded result.

摘要翻译： 本发明便于在更宽的工作角度范围内进行条形码读取器的操作，与条形码的距离更宽的范围和更宽范围的条形码密度。 本发明包括改进的光学和感测元件。 为了提供更宽的景深，与发射器和/或光电检测器相关联的光学器件具有两个不同的焦点。 在优选实施例中，光学和感测元件和/或相关联的电路被布置成提供从扫描的条形码导出的两个数据通道。 两个通道具有不同的分辨率。 来自两个通道的数据的分析提供单个解码结果。 由于工作角和密度变化，分辨率中的至少一个将适合于感测所有或大部分条形码数据。 可以使用来自产生有效结果的信道的数据，或者如果两个信道本身都没有产生有效结果，则可以分析来自每个信道的数据，并且将来自两个信道的数据的有效部分组合以产生单个解码结果。

公开(公告)号：US20050056701A1

公开(公告)日：2005-03-17

申请号：US10918866

申请日：2004-08-16

申请人： Jerome Swartz ,  Miklos Stern ,  Joseph Katz ,  Yajun Li

发明人： Jerome Swartz ,  Miklos Stern ,  Joseph Katz ,  Yajun Li

IPC分类号： G06K7/10 ,  G06K7/14

CPC分类号： G06K7/10683 ,  G06K7/10653

摘要： An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand a laser beam deflected by the micro-machined mirror. The scanner may also scan a barcode without using a micro-machined mirror by rotating the laser diode.

公开(公告)号：US06843416B2

公开(公告)日：2005-01-18

申请号：US10660274

申请日：2003-09-11

申请人： Jerome Swartz ,  Miklos Stern ,  Joseph Katz ,  Yajun Li

发明人： Jerome Swartz ,  Miklos Stern ,  Joseph Katz ,  Yajun Li

IPC分类号： G06K7/10

CPC分类号： G06K7/10683 ,  G06K7/10653 ,  G06K7/10811

摘要： An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand a laser beam deflected by the micro-machined mirror. The scanner may also scan a barcode without using a micro-machined mirror by rotating the laser diode.

摘要翻译： 用于扫描条形码的集成扫描仪形成在公共基板上。 扫描器可以包括安装在单个基板或几个连接的基板上的微加工镜，激光二极管和检测器。 可以使用透镜来聚焦来自激光二极管的激光束，以及扩大由微加工镜反射的激光束。 扫描仪也可以通过旋转激光二极管来扫描条形码而不使用微加工镜。

公开(公告)号：US06648227B2

公开(公告)日：2003-11-18

申请号：US10059552

申请日：2002-01-29

申请人： Jerome Swartz ,  Miklos Stern ,  Joseph Katz ,  Yajun Li

发明人： Jerome Swartz ,  Miklos Stern ,  Joseph Katz ,  Yajun Li

IPC分类号： G06K710

CPC分类号： G06K7/10811 ,  G06K7/10653

摘要： An optical scanning module for use in a bar code reader, including a frame, including a base and a vertical support; a scanning element mounted to the base and including a mirror disposed in the path of an unfocussed laser beam and mounted for oscillatory motion so as to create a scanning laser beam; and a focusing lens, mounted to the vertical support and in the path of the scanning laser beam, for focusing the beam on a target exterior to the module.

摘要翻译： 一种用于条形码阅读器的光学扫描模块，包括一个框架，包括底座和垂直支架; 扫描元件安装到基座并且包括设置在未聚焦的激光束的路径中并被安装用于振荡运动以产生扫描激光束的反射镜; 以及聚焦透镜，安装到垂直支撑件和扫描激光束的路径中，用于将光束聚焦在模块的目标外部上。

公开(公告)号：US6036098A

公开(公告)日：2000-03-14

申请号：US6633

申请日：1998-01-13

申请人： Ron Goldman ,  Edward R. Alexander ,  Yajun Li ,  Simon Bard ,  Askold Strat ,  Joseph Katz ,  Boris Metlitsky

发明人： Ron Goldman ,  Edward R. Alexander ,  Yajun Li ,  Simon Bard ,  Askold Strat ,  Joseph Katz ,  Boris Metlitsky

IPC分类号： G06F1/16 ,  G06F3/033 ,  G06K7/10 ,  G06K7/00

CPC分类号： G06K7/1098 ,  G06F1/163 ,  G06F3/0346 ,  G06K7/10564 ,  G06K7/10584 ,  G06K7/10653 ,  G06K7/10891 ,  G06F2203/0331

摘要： A miniature high speed bar code scanning element is detachably mounted within an industry standard PCMCIA card for implementation in personal computing devices.

摘要翻译： 微型高速条形码扫描元件可拆卸地安装在工业标准PCMCIA卡内，用于在个人计算设备中实现。