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1. 发明授权

US06845915B2 Extended range bar code reader 失效
标题翻译：扩展范围条码阅读器
公开(公告)号：US06845915B2
公开(公告)日：2005-01-25
申请号：US10040597
申请日：2001-10-25
申请人： Mark Krichever , Vladimir Gurevich , Daniel Brown , Mehul Patel
发明人： Mark Krichever , Vladimir Gurevich , Daniel Brown , Mehul Patel
IPC分类号： B41J2/45 , G06F1/16 , G06F1/18 , G06F3/033 , G06F17/30 , G06K1/12 , G06K7/10 , G06K17/00 , H04L12/28 , H04L12/56 , H04L29/12
CPC分类号： G06K17/0022 , B41J2002/453 , G06F1/1616 , G06F1/1626 , G06F1/1632 , G06F1/1639 , G06F1/1696 , G06F1/181 , G06F3/03545 , G06F17/30017 , G06F17/30876 , G06F17/30879 , G06K1/121 , G06K7/10881 , H04L29/12009 , H04L29/12594 , H04L61/30
摘要： A focusing lens is manually moved to extend a range of working distances in which a bar code symbol can be electro-optically read. The lens movement enables reading of close-in and far-out symbols. The lens movement can also be used to change operation between a reading mode and a pointing mode in which a visual display is created on a target.
摘要翻译：手动移动聚焦透镜以延长可以电光学读取条形码符号的工作距离范围。透镜运动可读取近距离和远距离的符号。透镜移动也可以用于在读取模式和在目标上创建视觉显示的指向模式之间改变操作。

2. 发明授权

US06651886B2 Optical code readers with holographic optical elements 有权
公开(公告)号：US06651886B2
公开(公告)日：2003-11-25
申请号：US09833861
申请日：2001-04-13
申请人： Vladimir Gurevich , Mark Krichever , Igor R. Vinogradov , Matthew Blasczak , Thomas D. Bianculli , Shinji Nagano , Mehul Patel
发明人： Vladimir Gurevich , Mark Krichever , Igor R. Vinogradov , Matthew Blasczak , Thomas D. Bianculli , Shinji Nagano , Mehul Patel
IPC分类号： G06K710
CPC分类号： G02B26/106 , G06K7/10663
摘要： Holographic optical elements are configured and deployed in optical imagers and scanners to produce optical modification of output laser beams and light received and detected by the system. In some preferred embodiments electrically switchable holographic optical elements (ESHOEs) are employed for beam tilting, for varying spot size and shape for modifying system focal distance and field of view, for changing laser aiming patterns and/or for color imaging.

3. 发明申请

US20060016892A1 Electro-optical reader with improved laser intensity modulation over extended working range 失效
公开(公告)号：US20060016892A1
公开(公告)日：2006-01-26
申请号：US10897724
申请日：2004-07-23
申请人： Igor Vinogradov , Vladimir Gurevich , David Shi , Dariusz Madej , Mehul Patel , Edward Barkan , Heng Zhang
发明人： Igor Vinogradov , Vladimir Gurevich , David Shi , Dariusz Madej , Mehul Patel , Edward Barkan , Heng Zhang
IPC分类号： G06K7/10 , G02B26/08
CPC分类号： G06K7/10683 , G06K7/10831
摘要： The combination of a rooftop optical element and a soft edge aperture stop, as well as the introduction of a negative spherical aberration in a positive focusing lens, improve working distance and depth of focus in both moving beam and imaging readers for electro-optically reading indicia such as bar code symbols, especially for close-in symbols, and moreover tend to reduce undesirable light intensity modulation in the beam profile thereby improving reader performance.

4. 发明申请

US20060144944A1 Electro-optical reader with improved laser intensity modulation over extended working range 有权
标题翻译：电光读取器，在延长的工作范围内具有改善的激光强度调制
公开(公告)号：US20060144944A1
公开(公告)日：2006-07-06
申请号：US11369130
申请日：2006-03-06
申请人： Igor Vinogradov , Vladimir Gurevich , David Shi , Dariusz Madej , Mehul Patel , Edward Barkan , Heng Zhang
发明人： Igor Vinogradov , Vladimir Gurevich , David Shi , Dariusz Madej , Mehul Patel , Edward Barkan , Heng Zhang
IPC分类号： G06K7/10
CPC分类号： G06K7/10683 , G06K7/10831
摘要： The combination of a rooftop optical element and a soft edge aperture stop, as well as the introduction of a negative spherical aberration in a positive focusing lens, improve working distance and depth of focus in both moving beam and imaging readers for electro-optically reading indicia such as bar code symbols, especially for close-in symbols, and moreover tend to reduce undesirable light intensity modulation in the beam profile thereby improving reader performance.
摘要翻译：屋顶光学元件和软边缘孔径光阑的组合以及在正聚焦透镜中引入负球面像差，可改善移动光束和成像读取器中的电光读取标记的工作距离和深度例如条形码符号，特别是用于近距离符号，并且还倾向于减少光束轮廓中的不期望的光强度调制，从而提高读取器性能。

5. 发明授权

US06909080B2 Arrangement for and method of imaging targets at plural focal planes 有权
标题翻译：在多个焦平面上对目标进行成像的方法和方法
公开(公告)号：US06909080B2
公开(公告)日：2005-06-21
申请号：US10321158
申请日：2002-12-17
申请人： Mehul Patel , David Tsi Shi , Mark Krichever , Paul Dvorkis
发明人： Mehul Patel , David Tsi Shi , Mark Krichever , Paul Dvorkis
IPC分类号： G02B3/00 , G02B27/40 , H01L27/00
CPC分类号： G02B3/0037 , G02B27/40
摘要： An imaging arrangement for, and method of, imaging a target at one of a plurality of focal planes, includes a two-dimensional sensor having an array of pixels for converting incident light into electrical signals to be processed into an image of the target, and an optical assembly including a stationary optical element transmissive to the incident light en route to the sensor. The element is fixed relative to the sensor and has a plurality of optical portions respectively arranged in a plurality of patterns relative to a plurality of groups of the pixels. The assembly is operative for focusing the respective groups of the pixels in the respective patterns at respective focal planes spaced apart from one another away from the sensor.
摘要翻译：用于在多个焦平面之一成像目标的成像装置和方法包括：二维传感器，具有用于将入射光转换成要被处理为目标图像的电信号的像素阵列;以及光学组件，其包括在到达传感器的途中对入射光透射的固定光学元件。元件相对于传感器固定，并且具有相对于多个像素组分别以多个图案布置的多个光学部分。该组件可操作用于将相应图案中的各个像素组聚焦在远离传感器彼此间隔开的相应焦平面处。

6. 发明授权

US07025272B2 System and method for auto focusing an optical code reader 有权
标题翻译：自动对焦光学读码器的系统和方法
公开(公告)号：US07025272B2
公开(公告)日：2006-04-11
申请号：US10389184
申请日：2003-03-14
申请人： Dmitry Yavid , Alex Breytman , Bradley S. Carlson , Mark Krichever , Mehul Patel , Edward Hatton , Paul Dvorkis , Thomas D. Bianculli
发明人： Dmitry Yavid , Alex Breytman , Bradley S. Carlson , Mark Krichever , Mehul Patel , Edward Hatton , Paul Dvorkis , Thomas D. Bianculli
IPC分类号： G03B3/10
CPC分类号： G06K19/14 , G06K7/0008 , G06K7/10722 , G06K7/10811
摘要： An optical code reader is provided including imaging circuitry having an array of photo sensing devices capable of sensing light incident on the array and outputting a plurality of pixel signals corresponding to the sensed light. The reader further includes control and logic circuitry for receiving a subset of the plurality of pixel signals, processing the received subset of the plurality of pixel signals for determining if the received pixel signals meet at least one predetermined condition, and outputting a selection control signal in accordance with the processing results. A focus analysis software module executable by the control and logic circuitry determines the focus quality of the received pixel signals. A selector control software module executable by the control and logic circuitry generates a selection control signal in accordance with the determined focus quality of the received pixel signals. Selector circuitry selectively enables the imaging circuitry to output selected pixel signals of the plurality of pixel signals in accordance with the selection control signal.
摘要翻译：提供了一种光学代码阅读器，包括具有能够检测入射到阵列上的光并且输出对应于所感测的光的多个像素信号的光敏元件阵列的成像电路。读取器还包括用于接收多个像素信号的子集的控制和逻辑电路，处理多个像素信号的接收子集，以确定接收的像素信号是否满足至少一个预定条件，并且输出选择控制信号按照处理结果。可由控制和逻辑电路执行的焦点分析软件模块确定接收到的像素信号的聚焦质量。可由控制和逻辑电路执行的选择器控制软件模块根据确定的接收到的像素信号的聚焦质量产生选择控制信号。选择器电路选择性地使成像电路能够根据选择控制信号输出多个像素信号中的选定像素信号。

7. 发明授权

US06899272B2 Bioptics bar code reader 有权
标题翻译： Bioptics条码阅读器
公开(公告)号：US06899272B2
公开(公告)日：2005-05-31
申请号：US09756438
申请日：2001-01-08
申请人： Mark Krichever , Mehul Patel
发明人： Mark Krichever , Mehul Patel
IPC分类号： G06K7/10
CPC分类号： G06K7/1096 , G06K7/10693
摘要： A bioptics bar code reader has first and second windows disposed at an angle to each other, a first imager for the first window and a second imager for the second window and first and second optics for directing light from a bar code in a reading area between the windows to the first and second imagers. The two imagers each obtain an image of the bar code in the reading area.
摘要翻译：生物条形码读取器具有彼此成角度设置的第一和第二窗口，用于第一窗口的第一成像器和用于第二窗口的第二成像器，以及用于将来自条形码的光从第二和第二光学器件引导到读取区域之间的读取区域窗户到第一和第二个成像器。两个成像器都在读取区域中获得条形码的图像。

8. 发明授权

US06811085B2 Miniature imager 有权
标题翻译：微型成像仪
公开(公告)号：US06811085B2
公开(公告)日：2004-11-02
申请号：US10118562
申请日：2002-04-09
申请人： Bradley Carlson , Duanfeng He , Joseph Katz , Mark Krichever , Mehul Patel , David Tsi Shi , Thomas D. Bianculli , Eugene Joseph
发明人： Bradley Carlson , Duanfeng He , Joseph Katz , Mark Krichever , Mehul Patel , David Tsi Shi , Thomas D. Bianculli , Eugene Joseph
IPC分类号： G06K714
CPC分类号： H04N5/2354 , G06K7/10722 , H01L27/146 , H04N5/2256
摘要： A miniature imager for reading target images. The optical and electrical systems of the miniature imager are optimized to reduce one or more dimensions or the volume of the imager. In accordance with one embodiment the pixel pitch and focal length are decreased for that of a larger imager to maintain a comparable field of view for each pixel. The decreased pixel pitch allows the area of the aperture and the instantaneous field of view of the pixel to remain constant while decreasing the overall size of the imager. In other embodiments apparatus and techniques reduce and/or eliminate the need for illumination of a target by the imager thereby reducing the overall power consumed by the imager and/or its overall size. The imager has an increased working range.
摘要翻译：用于读取目标图像的微型成像器。微型成像器的光学和电气系统被优化以减小成像器的一个或多个尺寸或体积。根据一个实施例，对于较大成像器的像素间距和焦距减小，以保持每个像素的可比视场。减小的像素间距允许像素的面积和像素的瞬时视场保持不变，同时降低成像器的整体尺寸。在其他实施例中，装置和技术减少和/或消除了由成像器对目标的照明的需要，从而降低了成像器消耗的总体功率和/或其整体尺寸。成像仪的工作范围有所增加。

9. 发明授权

US5955720A Semi-retroreflective scanners 失效
标题翻译：半反光扫描仪
公开(公告)号：US5955720A
公开(公告)日：1999-09-21
申请号：US619244
申请日：1996-03-21
申请人： Duanfeng He , Richard Isaac , Mehul Patel , Daniel Brown
发明人： Duanfeng He , Richard Isaac , Mehul Patel , Daniel Brown
IPC分类号： G06K7/10
CPC分类号： G06K7/10603 , G06K7/10663 , G06K7/10693 , G06K7/10702 , G06K7/10801 , G06K2207/1015
摘要： A semi-retroreflective optical scanning system has an optical scanning element which directs a scanning light beam via a stationary holographic optical element in a scan path across indicia to be read. Light from the indicia is collected by an optical collector, such as a lens or a mirror, which focuses it onto a small optical detector via the scanning element. The field of view of the optical detector scans across the indicia in synchronization with the outgoing scanning beam from the holographic optical element. Since the incoming reflected light is not limited by the aperture of the scanning element, the signal-to-noise ratio remains high even when a small scanning element is used. In a further embodiment the light source, scanning element collector and detector are provided in a common plane, the collector and scanning element sharing a common optical axis and a light source being provided substantially off axis to allow reduction in the scanning element size. In a further aspect of the invention a solid state reader is provided capable of establishing the distance to the target by sensing the exact position on the detector at which the target is imaged. According to yet a further aspect of the invention the problem of specular blinding is overcome by providing a plurality of sensors activated in a dynamic on-off sequence, for example a random sequence.
摘要翻译：半回光光学扫描系统具有光学扫描元件，其通过经过待读取的标记的扫描路径中的静止全息光学元件引导扫描光束。来自标记的光由诸如透镜或反射镜的光学收集器收集，其通过扫描元件将其聚焦到小型光学检测器上。光学检测器的视野与来自全息光学元件的输出扫描光束同步地扫描标记。由于入射的反射光不受扫描元件的孔径的限制，即使使用小的扫描元件，信噪比也保持较高。在另一个实施例中，光源，扫描元件收集器和检测器设置在公共平面中，集电器和扫描元件共享公共光轴，光源基本上设置在离轴上，以允许减小扫描元件尺寸。在本发明的另一方面，提供了一种固态读取器，其能够通过感测检测器上目标物被成像的确切位置来建立与目标的距离。根据本发明的另一方面，通过提供在动态开关序列（例如随机序列）中激活的多个传感器来克服镜面盲法的问题。

10. 发明申请

US20050205677A1 System and method for sensing ambient light in an optical code reader 有权
标题翻译：用于在光学代码读取器中感测环境光的系统和方法
公开(公告)号：US20050205677A1
公开(公告)日：2005-09-22
申请号：US10803669
申请日：2004-03-18
申请人： Mehul Patel , Pierre Craen , William Becker , Daniel Brown
发明人： Mehul Patel , Pierre Craen , William Becker , Daniel Brown
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： G06K7/10752 , G06K7/10732
摘要： A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light. The optical code scanner further includes at least one of exposure circuitry for controlling exposure during the sensing of the reflected light, gain circuitry for processing gain of at least a portion of the plurality of second electrical signals and an illumination assembly for providing illumination for illuminating the target; and a processing circuitry for processing at least a portion of the at least one first electrical signal electrical signal and controlling at least one of the exposure circuitry, the gain circuitry and the illumination assembly in accordance with the processing of the at least a portion of the at least one first electrical signal.
摘要翻译：提供了用于扫描光学代码的系统和方法，其中光学代码扫描器系统包括环境光传感器，该环境光传感器具有用于感测环境光条件的至少一个光传感器，并且产生对应于环境感测的至少一个第一电信号光条件和具有多个光传感器的光传感器阵列，用于感测从被成像的目标物反射的光，并产生对应于反射光的感测的多个第二电信号。光学代码扫描器还包括用于在感测反射光期间控制曝光的曝光电路中的至少一个，用于处理多个第二电信号的至少一部分的增益的增益电路和用于提供照明的照明的照明组件目标; 以及处理电路，用于处理所述至少一个第一电信号电信号的至少一部分，并且根据所述至少一部分的处理来控制所述曝光电路，所述增益电路和所述照明组件中的至少一个至少一个第一电信号。

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