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41.发明申请Automatically-actived wireless hand-supportable laser scanning bar code symbol reading system with data transmission activation switch and automatic communication range dependent control 有权自动激活的无线手持激光扫描条码符号读取系统，具有数据传输激活开关和自动通信范围相关的控制公开(公告)号：US20070145147A1
公开(公告)日：2007-06-28
申请号：US11520429
申请日：2006-09-13
申请人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Au , Patrick Giordano
IPC分类号： G06K7/10
CPC分类号： G06K7/10871 , G06K7/10 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10881 , G06K7/10891 , G06K7/14 , G06K17/0022 , G06K2207/1012
摘要： A wireless automatically-activated bar code symbol reading system for use in a work environment, the system including a device controller programmed to automatically detect when a wireless hand-supportable bar code symbol reader is located inside of a predetermined RF communication range based on measuring the strength of a detected reference signal, and thereupon to automatically transmit to a first RF-based transceiver, the symbol character data string produced while the wireless hand-supportable bar code symbol reader is located inside of the predetermined RF communication range. Also, the device controller is programmed to automatically detect when the wireless hand-supportable bar code symbol reader is located outside of the predetermined RF communication range based on measuring the strength of the detected reference signal, and thereupon to automatically collect and store in the data packet group buffer, the symbol character data string produced while the wireless hand-supportable bar code symbol reader is located outside of the predetermined RF communication range.
摘要翻译： 一种在工作环境中使用的无线自动激活的条形码符号读取系统，该系统包括被编程为当无线手持式条形码符号读取器位于预定的RF通信范围内时，基于测量 检测到的参考信号的强度，然后自动发送到第一基于RF的收发器，当无线手持式条形码符号读取器位于预定的RF通信范围内时产生的符号字符数据串。 此外，设备控制器被编程为基于测量检测到的参考信号的强度来自动检测无线手持式条形码符号读取器何时位于预定RF通信范围之外的位置，并且随后自动收集并存储在数据中 分组组缓冲器，当无线手持式条形码符号读取器位于预定RF通信范围之外时产生的符号字符数据串。
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公开(公告)号：US20050199727A1
公开(公告)日：2005-09-15
申请号：US10613774
申请日：2003-07-03
申请人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQuing Ji , Shamei Shi , Ka Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQuing Ji , Shamei Shi , Ka Au , Patrick Giordano
CPC分类号： B82Y15/00 , G06K7/10 , G06K7/10544 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/14 , G06K2207/1012
摘要： Disclosed is an automatically-activated wireless code symbol reading system comprising a bar code symbol reading mechanism contained within a hand-supportable housing having a manually-activatable data transmission switch. During symbol reading operations, the bar code symbol reading mechanism automatically generates a visible laser scanning pattern for repeatedly reading one or more bar code symbols on an object during a bar code symbol reading cycle, and automatically generating a new symbol character data string in response to each bar code symbol read thereby. During system operation, the user visually aligns the visible laser scanning pattern with a particular bar code symbol on an object (e.g. product, bar code menu, etc.) so that the bar code symbol is scanned, detected and decoded in a cyclical manner. Each time the scanned bar code symbol is successfully read during a bar code symbol reading cycle, a new bar code symbol character string is produced, while an indicator light on the hand-supportable housing is actively driven. During the bar code symbol reading cycle, the user actuates the data transmission switch producing a data transmission control activation signal and enabling a currently or subsequently produced symbol character data string to be automatically selected and transmitted to the host system. By virtue of the present invention, automatically-activated hand-supportable bar code symbol readers are now able to accurately read, in an unprecedented manner, bar code symbols on bar code menus, consumer products positioned in crowded point-of-sale environments, and other objects requiring automatic identification and/or information access.
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43.发明申请公开(公告)号：US20050199726A1
公开(公告)日：2005-09-15
申请号：US10611846
申请日：2003-07-01
申请人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQuing Ji , Shamei Shi , Ka Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQuing Ji , Shamei Shi , Ka Au , Patrick Giordano
CPC分类号： B82Y15/00 , G06K7/10 , G06K7/10544 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/14 , G06K2207/1012
摘要： Disclosed is an automatically-activated wireless code symbol reading system comprising a bar code symbol reading mechanism contained within a hand-supportable housing having a manually-activatable data transmission switch. During symbol reading operations, the bar code symbol reading mechanism automatically generates a visible laser scanning pattern for repeatedly reading one or more bar code symbols on an object during a bar code symbol reading cycle, and automatically generating a new symbol character data string in response to each bar code symbol read thereby. During system operation, the user visually aligns the visible laser scanning pattern with a particular bar code symbol on an object (e.g. product, bar code menu, etc.) so that the bar code symbol is scanned, detected and decoded in a cyclical manner. Each time the scanned bar code symbol is successfully read during a bar code symbol reading cycle, a new bar code symbol character string is produced, while an indicator light on the hand-supportable housing is actively driven. During the bar code symbol reading cycle, the user actuates the data transmission switch producing a data transmission control activation signal and enabling a currently or subsequently produced symbol character data string to be automatically selected and transmitted to the host system. By virtue of the present invention, automatically-activated hand-supportable bar code symbol readers are now able to accurately read, in an unprecedented manner, bar code symbols on bar code menus, consumer products positioned in crowded point-of-sale environments, and other objects requiring automatic identification and/or information access.
摘要翻译： 公开了一种自动激活的无线代码符号读取系统，其包括包含在具有可手动激活的数据传输开关的手持式外壳内的条形码符号读取机构。 在符号读取操作期间，条形码符号读取机构自动生成可见激光扫描图案，用于在条形码符号读取周期期间重复读取对象上的一个或多个条形码符号，并响应于该条形码符号读取周期自动生成新的符号字符数据串 每个条码符号读取。 在系统操作期间，用户将可见激光扫描图案与物体上的特定条形码符号（例如产品，条形码菜单等）视觉对准，使得条形码符号以循环方式被扫描，检测和解码。 每次在条形码符号读取循环期间成功读取扫描的条形码符号时，产生新的条形码符号字符串，同时主动驱动手持式外壳上的指示灯。 在条形码符号读取周期期间，用户致动数据传输开关，产生数据传输控制激活信号，并使当前或随后产生的符号字符数据串被自动选择并发送到主机系统。 凭借本发明，自动激活的手持式条形码符号读取器现在能够以前所未有的方式准确地读取位于拥挤的销售点环境中的条形码菜单，消费品的条形码符号，以及 需要自动识别和/或信息访问的其他对象。
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44.发明申请Wireless laser scanning bar code symbol reading system employing a low-battery protection circuit, vibrational alarm and sleep mode of operation 失效无线激光扫描条码符号读取系统采用低电量保护电路，振动报警和睡眠模式操作公开(公告)号：US20050121523A1
公开(公告)日：2005-06-09
申请号：US10611813
申请日：2003-07-01
申请人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Au , Patrick Giordano
CPC分类号： B82Y15/00 , G06K7/10 , G06K7/10544 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/14 , G06K2207/1012
摘要： Disclosed is an automatically-activated wireless code symbol reading system comprising a bar code symbol reading mechanism contained within a hand-supportable housing having a manually-activatable data transmission switch. During symbol reading operations, the bar code symbol reading mechanism automatically generates a visible laser scanning pattern for repeatedly reading one or more bar code symbols on an object during a bar code symbol reading cycle, and automatically generating a new symbol character data string in response to each bar code symbol read thereby. During system operation, the user visually aligns the visible laser scanning pattern with a particular bar code symbol on an object (e.g. product, bar code menu, etc.) so that the bar code symbol is scanned, detected and decoded in a cyclical manner. Each time the scanned bar code symbol is successfully read during a bar code symbol reading cycle, a new bar code symbol character string is produced, while an indicator light on the hand-supportable housing is actively driven. During the bar code symbol reading cycle, the user actuates the data transmission switch producing a data transmission control activation signal and enabling a currently or subsequently produced symbol character data string to be automatically selected and transmitted to the host system. By virtue of the present invention, automatically-activated hand-supportable bar code symbol readers are now able to accurately read, in an unprecedented manner, bar code symbols on bar code menus, consumer products positioned in crowded point-of-sale environments, and other objects requiring automatic identification and/or information access.
摘要翻译： 公开了一种自动激活的无线代码符号读取系统，其包括包含在具有可手动激活的数据传输开关的手持式外壳内的条形码符号读取机构。 在符号读取操作期间，条形码符号读取机构自动生成可见激光扫描图案，用于在条形码符号读取周期期间重复读取对象上的一个或多个条形码符号，并响应于该条形码符号读取周期自动生成新的符号字符数据串 每个条码符号读取。 在系统操作期间，用户将可见激光扫描图案与物体上的特定条形码符号（例如产品，条形码菜单等）视觉对准，使得条形码符号以循环方式被扫描，检测和解码。 每次在条形码符号读取循环期间成功读取扫描的条形码符号时，产生新的条形码符号字符串，同时主动驱动手持式外壳上的指示灯。 在条形码符号读取周期期间，用户致动数据传输开关，产生数据传输控制激活信号，并使当前或随后产生的符号字符数据串被自动选择并发送到主机系统。 凭借本发明，自动激活的手持式条形码符号读取器现在能够以前所未有的方式准确地读取位于拥挤的销售点环境中的条形码菜单，消费品的条形码符号，以及 需要自动识别和/或信息访问的其他对象。
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45.发明申请公开(公告)号：US20050274810A1
公开(公告)日：2005-12-15
申请号：US10613758
申请日：2003-07-03
申请人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David Wilz , Robert Blake , Donald Hudrick , Stephen Colavito , C. Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Au , Patrick Giordano
CPC分类号： B82Y15/00 , G06K7/10 , G06K7/10544 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/14 , G06K2207/1012
摘要： A wireless bar code symbol reading system for use in both vertical and horizontal orientations in a work environment. The system comprises a wireless hand-supportable bar code symbol reading device in two-way RF communication with a base station that is installable within a work environment and includes a base station housing having a cradle portion provided with a pair of hinged support hooks for supporting the hand-supportable housing of the reading device in both vertical and horizontal orientations. The pair of hinged support hooks are arrangeable in a protracted position within the cradle portion so as to support the hand-supportable housing in the cradle portion mounted in a vertical orientation. The pair of hinged support hooks are arrangeable in a retracted position within the cradle portion so as to support the hand-supportable housing in the cradle portion mounted in a horizontal orientation.
摘要翻译： 一种用于工作环境中的垂直和水平取向的无线条形码符号读取系统。 该系统包括与可安装在工作环境中的基站进行双向RF通信的无线手持式条形码符号读取装置，并且包括具有支架部分的基站壳体，该基座壳体设置有一对铰链支撑钩，用于支撑 读取装置的手持式外壳在垂直和水平方向。 所述一对铰链支撑钩可布置在支架部分内的延伸位置，以便支撑在垂直方向安装的托架部分中的手持式壳体。 一对铰链支撑钩可布置在支架部分内的缩回位置，以便支撑在水平方向安装的托架部分中的手持式壳体。
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公开(公告)号：US08950678B2
公开(公告)日：2015-02-10
申请号：US12948394
申请日：2010-11-17
申请人： Gennady Germaine , Tao Xian , Chen Feng , Ynjiun Wang , Xiaoxun Zhu , Stephen Colavito , Robert Blake
发明人： Gennady Germaine , Tao Xian , Chen Feng , Ynjiun Wang , Xiaoxun Zhu , Stephen Colavito , Robert Blake
CPC分类号： G06K7/10851 , G06K7/1452
摘要： An optical reader for decoding an encoded symbol character of a symbology includes a scan data signal processor having as an input a scan data signal encoding information representative of the encoded symbol character. The scan data signal processor includes a first time delay stage adapted to provide a primary phase waveform from the scan data signal, a second time delay stage adapted to provide an early phase waveform from the scan data signal, and a third time delay stage adapted to provide a delayed phase waveform from the scan data signal. The early phase waveform has a propagation delay less than the primary phase waveform, and the delayed phase waveform has a propagation delay greater than the primary phase waveform. The scan data signal processor further includes a peak window detection stage for generating a peak window timeframe when an amplitude of the primary phase waveform is greater than, less than, or equal to both an amplitude of the early phase waveform and the delayed phase waveform. The optical reader further includes a digitizer circuit adapted to accept, within the peak window timeframe, the scan data signal processor output.
摘要翻译： 用于解码符号系统的编码符号字符的光学读取器包括扫描数据信号处理器，其具有编码表示编码符号字符的信息的扫描数据信号作为输入。 扫描数据信号处理器包括适于从扫描数据信号提供初级相位波形的第一时间延迟级，适于从扫描数据信号提供早期相位波形的第二时间延迟级，以及适于 从扫描数据信号提供延迟相位波形。 早期相位波形的传播延迟小于初级相位波形，延迟相位波形的传播延迟大于主相位波形。 扫描数据信号处理器还包括峰值窗口检测级，用于当主相波形的振幅大于，小于或等于早期相位波形和延迟相位波形的振幅时产生峰值窗口时间帧。 光学读取器还包括数字转换器电路，其适于在峰值窗口时间帧内接收扫描数据信号处理器输出。
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公开(公告)号：US20120118974A1
公开(公告)日：2012-05-17
申请号：US12948394
申请日：2010-11-17
申请人： Gennady Germaine , Tao Xian , Chen Feng , Ynjiun Wang , Xiaoxun Zhu , Stephen Colavito , Robert Blake
发明人： Gennady Germaine , Tao Xian , Chen Feng , Ynjiun Wang , Xiaoxun Zhu , Stephen Colavito , Robert Blake
IPC分类号： G06K7/14
CPC分类号： G06K7/10851 , G06K7/1452
摘要： An optical reader for decoding an encoded symbol character of a symbology includes a scan data signal processor having as an input a scan data signal encoding information representative of the encoded symbol character. The scan data signal processor includes a first time delay stage adapted to provide a primary phase waveform from the scan data signal, a second time delay stage adapted to provide an early phase waveform from the scan data signal, and a third time delay stage adapted to provide a delayed phase waveform from the scan data signal. The early phase waveform has a propagation delay less than the primary phase waveform, and the delayed phase waveform has a propagation delay greater than the primary phase waveform. The scan data signal processor further includes a peak window detection stage for generating a peak window timeframe when an amplitude of the primary phase waveform is greater than, less than, or equal to both an amplitude of the early phase waveform and the delayed phase waveform. The optical reader further includes a digitizer circuit adapted to accept, within the peak window timeframe, the scan data signal processor output.
摘要翻译： 用于解码符号系统的编码符号字符的光学读取器包括扫描数据信号处理器，其具有编码表示编码符号字符的信息的扫描数据信号作为输入。 扫描数据信号处理器包括适于从扫描数据信号提供初级相位波形的第一时间延迟级，适于从扫描数据信号提供早期相位波形的第二时间延迟级，以及适于 从扫描数据信号提供延迟相位波形。 早期相位波形的传播延迟小于初级相位波形，延迟相位波形的传播延迟大于主相位波形。 扫描数据信号处理器还包括峰值窗口检测级，用于当主相波形的振幅大于，小于或等于早期相位波形和延迟相位波形的振幅时产生峰值窗口时间帧。 光学读取器还包括数字转换器电路，其适于在峰值窗口时间帧内接收扫描数据信号处理器输出。
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48.发明授权Optical filtering system for a laser bar code scanner having narrow band-pass characteristics with spatially separated filtering elements 失效用于激光条形码扫描器的光学滤波系统，具有窄带通特性和空间分离的滤波元件
公开(公告)号：US6029894A
公开(公告)日：2000-02-29
申请号：US258005
申请日：1999-02-26
CPC分类号： G06K7/10891 , G02B26/106 , G06K17/0022 , G06K7/10564 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10851 , G06K7/10861 , G06K7/10881 , G06K7/14 , G06K7/1443 , G06K2207/1012 , G06K2207/1016 , G06K2207/1017 , G06K2207/1018
摘要： A laser bar code symbol scanner employing a narrow band-pass optical filtering system of novel construction is disclosed. A first optical filtering element is installed in the light transmission aperture of a bar code scanner housing. A second optical filtering element is installed inside the scanner housing near the light detecting element. The first and second optical filtering elements have wavelength selective properties such that taken together they cooperate to form a narrow wavelength band-pass optical filtering system which allows only transmission of light at and around a certain predetermined wavelength into the photodetector element. The present invention also hides aesthetically unappealing electro-optical components mounted in the scanner housing from plain view and the optical filtering elements of the system can be easily and inexpensively manufactured without compromising the performance of the scanner.
摘要翻译： 公开了采用新颖结构的窄带通光学滤波系统的激光条码符号扫描仪。 第一光学过滤元件安装在条形码扫描器壳体的光传输孔中。 第二光学滤光元件安装在扫描器壳体内部，靠近光检测元件。 第一和第二光学滤波元件具有波长选择性，使得它们合在一起形成窄波长带通光学滤波系统，其仅允许在某一预定波长处和周围的光的透射进入光电检测器元件。 本发明还从平面的角度隐藏安装在扫描仪外壳中的美观的电光部件，并且可以容易且廉价地制造系统的光学滤光元件而不损害扫描仪的性能。
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49.发明授权Laser code symbol scanner employing optical filtering system having narrow band-pass characteristics and spatially separated optical filter elements with laser light collection optics arranged along laser light return path disposed therebetween 失效激光代码符号扫描器采用具有窄带通特性的光学滤波系统和具有激光收集光学器件的空间分离的滤光器元件，沿着激光返回路径布置在其间
公开(公告)号：US5627359A
公开(公告)日：1997-05-06
申请号：US439224
申请日：1995-05-11
CPC分类号： G06K7/10891 , G02B26/106 , G06K17/0022 , G06K7/10564 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10851 , G06K7/10861 , G06K7/10881 , G06K7/14 , G06K7/1443 , G06K2207/1012 , G06K2207/1016 , G06K2207/1017 , G06K2207/1018
摘要： A laser bar code symbol scanner embodying a narrow band-pass optical filtering system of novel construction. A first optical filter element is installed over the light transmission aperture of the scanner housing, and has wavelength selective properties which transmit only light having wavelengths from slightly below a predetermined wavelength in the visible band of the electromagnetic spectrum (e.g., greater than slightly below 670 nanometers). A second optical filter element is installed within the housing, along the focused laser return light path between the light focusing element and the light detecting element, and transmits only light having wavelengths from slightly above the predetermined wavelength (e.g., less than slightly above 670 nanometers). Collectively, the first and second optical filter elements cooperate to form a narrow wavelength band-pass filtering system centered about the predetermined wavelength, providing improved signal-to-noise ratio. As a result of the present invention, aesthetically unappealing electro-optical components mounted within the scanner housing are hidden from plain view, while the optical filtering elements of the system can be easily and inexpensively manufactures and used without compromising the signal-to-noise ratio performance of the laser scanner.
摘要翻译： 一种激光条形码符号扫描仪，体现了一种新型结构的窄带通滤光系统。 第一滤光器元件安装在扫描器外壳的光传输孔的上方，并且具有波长选择性，其仅透射具有在电磁光谱的可见光带内略微低于预定波长的波长的光（例如，大于略低于670 纳米）。 第二滤光器元件沿着聚光元件和光检测元件之间的聚焦激光返回光路安装在壳体内，并且仅透射具有略高于预定波长的波长的光（例如，小于略高于670纳米 ）。 总的来说，第一和第二滤光器元件协作以形成以预定波长为中心的窄波长带通滤波系统，从而提供改善的信噪比。 作为本发明的结果，安装在扫描仪外壳内的美学上不吸引人的电光学部件被隐藏起来，而平面图则可以容易且廉价地制造和使用系统的光学滤波元件而不损害信噪比 激光扫描仪的性能。
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50.发明授权Optical filtering system for a laser bar code scanner having narrow band-pass characteristics employing spatially separated filtering elements including a scanner window 失效用于激光条形码扫描器的光学滤波系统，其具有采用包括扫描仪窗口的空间分离的滤波元件的窄带通特性公开(公告)号：US06209789B1
公开(公告)日：2001-04-03
申请号：US09436742
申请日：1999-11-09
IPC分类号： G06K710
CPC分类号： G06K7/10891 , G02B26/106 , G06K7/10564 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10851 , G06K7/10861 , G06K7/10881 , G06K7/14 , G06K7/1443 , G06K17/0022 , G06K2207/1012 , G06K2207/1016 , G06K2207/1017 , G06K2207/1018
摘要： A novel optical filtering system for a laser bar code scanner having narrow band-pass characteristics is disclosed. The optical filtering system has two different optical filtering elements which are disposed in a scanner housing in a spatially separate relationship. One of the optical filtering elements is positioned inside of the scanner housing in front of and close to the light detection element. The other optical filtering element is positioned in the light transmission aperture of the scanner housing and forms the scanning window. The optical filtering characteristics of the scanning window obscure the internal components of the scanner from plain view making the scanner appear more aesthetically pleasing. Together the optical filtering element cooperate to form a narrow-band pass filter to provide for better light collection and scanning.
摘要翻译： 公开了一种用于具有窄带通特性的激光条码扫描器的新型光学滤波系统。 光学滤波系统具有两个不同的光学滤波元件，其以空间上分离的关系设置在扫描仪外壳中。 光学滤波元件中的一个位于扫描器壳体的内部并且靠近光检测元件。 另一个光学滤光元件位于扫描器外壳的光传输孔中并形成扫描窗。 扫描窗口的光学滤波特性从平面视图遮蔽扫描仪的内部组件，使扫描仪看起来更美观。 光学滤波器组合在一起形成窄带通滤波器，以提供更好的光采集和扫描。
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