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1. 发明授权

US07832643B2 Hand-supported planar laser illumination and imaging (PLIIM) based systems with laser despeckling mechanisms integrated therein 失效
标题翻译：手持式平面激光照明和成像（PLIIM）系统，其中集成了激光去散射机制
公开(公告)号：US07832643B2
公开(公告)日：2010-11-16
申请号：US11980081
申请日：2007-10-30
申请人： Constantine J. Tsikos , C. Harry Knowles , Xiaoxun Zhu , Michael D. Schnee , Ka Man Au , Allan Wirth , Timothy A. Good , Andrew Jankevics , Sankar Ghosh , Charles A. Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Joseph Dobbs , George Kolis , Mark C. Schmidt , Jeffery Yorsz , Patrick A. Giordano , Stephen J. Colavito , David W. Wilz, Sr. , Barry E. Schwartz , Steven Y. Kim , Dale Fisher , Jon Van Tassell
发明人： Constantine J. Tsikos , C. Harry Knowles , Xiaoxun Zhu , Michael D. Schnee , Ka Man Au , Allan Wirth , Timothy A. Good , Andrew Jankevics , Sankar Ghosh , Charles A. Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Joseph Dobbs , George Kolis , Mark C. Schmidt , Jeffery Yorsz , Patrick A. Giordano , Stephen J. Colavito , David W. Wilz, Sr. , Barry E. Schwartz , Steven Y. Kim , Dale Fisher , Jon Van Tassell
IPC分类号： G06K7/10
CPC分类号： G06K7/10732
摘要： A hand-supportable planar laser illumination and imaging (PLIIM) based code symbol reader includes: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber and constructing a two-dimensional image from a series of buffered linear digital images, and an image processing computer for processing the buffered two-dimensional digital image so as to read code symbols graphically represented in the two-dimensional digital linear image. During object illumination and imaging operations, a controller automatically controls the linear image formation and detection module, the PLIB producing device, the image frame grabber, and the image data buffer.
摘要翻译：基于手持式平面激光照明和成像（PLIIM）的代码符号读取器包括：具有光传输孔径的手持式外壳; 具有线性图像检测阵列的线性图像形成和检测模块; 以及具有用于产生平面光照射光束（PLIB）的至少一个可见激光二极管（VLD）的平面激光照明光束（PLIB）产生装置。代码符号读取器还包括用于抓取由图像形成和检测模块形成和检测的数字线性图像的图像获取器，用于缓冲由图像获取器抓取的数字线性图像并构建来自一系列的图像的二维图像的图像数据缓冲器缓冲线性数字图像，以及用于处理缓冲的二维数字图像以便读取在二维数字线性图像中图形表示的代码符号的图像处理计算机。在物体照明和成像操作期间，控制器自动控制线性图像形成和检测模块，PLIB产生装置，图像帧抓取器和图像数据缓冲器。

2. 发明授权

US07673803B2 Planar laser illumination and imaging (PLIIM) based engine 失效
标题翻译：基于平面激光照明和成像（PLIIM）的发动机
公开(公告)号：US07673803B2
公开(公告)日：2010-03-09
申请号：US11978941
申请日：2007-10-30
申请人： Constantine J. Tsikos , C. Harry Knowles , Xiaoxun Zhu , Michael D. Schnee , Ka Man Au , Allan Wirth , Timothy A. Good , Andrew Jankevics , Sankar Ghosh , Charles A. Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Joseph Dobbs , George Kolis , Mark S. Schmidt , Jeffery Yorsz , Patrick A. Giordano , Stephen J. Colavito , David W. Wilz, Sr. , Barry E. Schwartz , Steven Y. Kim , Dale Fisher , Jon Van Tassell
发明人： Constantine J. Tsikos , C. Harry Knowles , Xiaoxun Zhu , Michael D. Schnee , Ka Man Au , Allan Wirth , Timothy A. Good , Andrew Jankevics , Sankar Ghosh , Charles A. Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Joseph Dobbs , George Kolis , Mark S. Schmidt , Jeffery Yorsz , Patrick A. Giordano , Stephen J. Colavito , David W. Wilz, Sr. , Barry E. Schwartz , Steven Y. Kim , Dale Fisher , Jon Van Tassell
IPC分类号： G06K7/10
CPC分类号： G06K7/10732
摘要： A planar laser illumination and imaging (PLIIM) based engine including; an engine housing having light transmission aperture; an image formation and detection module and having an image detection array and image formation optics with a field of view (FOV) extending from the image detection array, through the light transmission aperture and onto an object moving relative to the engine housing during object illumination and imaging operations; a planar laser illumination beam (PLIB) producing device, and having at least one visible laser illumination source arranged in relation to the image formation and detection module, for producing a planar light illumination beam (PLIB), and projecting the planar light illumination beam through light transmission aperture and oriented such that the plane of the PLIB is coplanar with the field of view of the image formation and detection module so that the object can be simultaneously illuminated by the planar light illumination beam and imaged within the field of view and onto the image detection array for detection as a digital linear image of the object; a laser despeckling mechanism for reducing the coherence of the PLIB during object illumination and imaging operation so that the power of speckle-pattern noise is substantially reduced in digital linear images detected on said image detection array.
摘要翻译：基于平面激光照明和成像（PLIIM）的发动机包括：具有光传输孔的发动机壳体; 图像形成和检测模块，并且具有图像检测阵列和具有从图像检测阵列延伸的视场（FOV）的图像检测阵列和图像形成光学器件，通过光传输孔径和物体照明期间相对于发动机壳体移动的物体，以及成像操作; 平面激光照明光束（PLIB）生成装置，并且具有相对于图像形成和检测模块布置的至少一个可见激光照明源，用于产生平面光照射束（PLIB），并且将平面光照射束通过光传输孔径和取向使得PLIB的平面与图像形成和检测模块的视场共面，使得物体可以被平面光照射束同时照射并在视场内成像到用于检测的图像检测阵列作为对象的数字线性图像; 一种用于在物体照明和成像操作期间减小PLIB的相干性的激光去散射机构，使得在所述图像检测阵列上检测到的数字线性图像中斑点图案噪声的功率大大减小。

3. 发明授权

US07620876B2 Reducing false positives in configuration error detection for programmable devices 有权
标题翻译：减少可编程器件配置错误检测中的误报
公开(公告)号：US07620876B2
公开(公告)日：2009-11-17
申请号：US11407519
申请日：2006-04-19
申请人： David Lewis , Robert Blake , Richard G. Cliff , Srinivas T. Reddy
发明人： David Lewis , Robert Blake , Richard G. Cliff , Srinivas T. Reddy
IPC分类号： G11C29/00
CPC分类号： G11C29/42 , G06F11/1008 , G11C29/52
摘要： A device reduces false positive memory error detections by using a masking unit and sensitivity mask data to exclude unused portions of the memory from the error detection computations. A device includes an error detection unit to read data from the memory and verify data integrity. The sensitivity mask data indicates unused portions of the memory. Unused portions of the memory may correspond with configuration data for unused portions of a programmable device. Each bit of the sensitivity mask data may indicate the usage of one or more bits of the data from the memory. In response to the mask data, the masking unit sets data from the unused portions of the memory to values that do not change the result of the error detection computations. This prevents any errors in data from the unused portions of the memory from raising an error signal.
摘要翻译：设备通过使用掩蔽单元和灵敏度掩码数据来减少假阳性存储器错误检测，以从错误检测计算中排除存储器的未使用部分。一种设备包括一个错误检测单元，用于从存储器读取数据并验证数据完整性。灵敏度掩码数据指示存储器的未使用部分。存储器的未使用部分可以对应于可编程设备的未使用部分的配置数据。灵敏度掩码数据的每一位可以指示来自存储器的数据的一位或多位的使用。响应于掩模数据，掩蔽单元将来自存储器的未使用部分的数据设置为不改变错误检测计算结果的值。这防止来自存储器的未使用部分的数据中的任何错误引起错误信号。

4. 发明申请

US20080128512A1 Wireless hand-supportable code symbol reading system with automatic communication range dependent control 有权
标题翻译：无线手持式代码符号读取系统，具有自动通信范围相关的控制
公开(公告)号：US20080128512A1
公开(公告)日：2008-06-05
申请号：US11978526
申请日：2007-10-29
申请人： Mark Schmidt , Garrett Russell , David M. Wilz , Robert Blake , Donald T. Hudrick , Stephen J. Colavito , C. Harry Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Man Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David M. Wilz , Robert Blake , Donald T. Hudrick , Stephen J. Colavito , C. Harry Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Ming Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Man 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 code symbol reading system including a wireless hand-supportable code symbol reader in two-way RF communication with a base station operably connected to a host system, by way of an RF-based wireless data communication link having a predetermined RF communication range over which two-way communication of data packets can occur. The wireless hand-supportable code symbol reader is programmed to automatically detect when it is located inside and outside of the predetermined RF communication range. When the wireless reader is inside the RF communication range, then symbol character data is automatically transmitted to the base station, and when the wireless reader is located outside of the RF communication range, then symbol character data is automatically collected and stored in a data packet buffer, until the wireless reader has re-entered its RF communication range.
摘要翻译：一种无线代码符号读取系统，其包括通过与具有预定的RF通信范围的基于RF的无线数据通信链路的可操作地连接到主机系统的基站进行双向RF通信的无线手持式代码符号读取器可能发生数据包的双向通信。无线手持式代码符号读取器被编程为自动检测何时位于预定的RF通信范围内部和外部。当无线阅读器在RF通信范围内时，符号字符数据自动发送到基站，当无线阅读器位于RF通信范围之外时，符号字符数据被自动收集并存储在数据包中缓冲区，直到无线阅读器重新进入其RF通信范围。

5. 发明申请

US20080128508A1 Tunnel-type digital imaging system for use within retail shopping environments such as supermarkets 失效
标题翻译：隧道式数字成像系统，用于零售购物环境（如超市）
公开(公告)号：US20080128508A1
公开(公告)日：2008-06-05
申请号：US11980076
申请日：2007-10-30
申请人： Constantine J. Tsikos , C. Harry Knowles , Xiaoxun Zhu , Michael D. Schnee , Ka Man Au , Allan Wirth , Timothy A. Good , Andrew Jankevics , Sankar Ghosh , Charles A. Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Joseph Dobbs , George Kolis , Mark C. Schmidt , Jeffery Yorsz , Patrick A. Giordano , Stephen J. Colavito , David W. Wilz , Barry E. Schwartz , Steven Y. Kim , Dale Fisher , Jon Van Tassell
发明人： Constantine J. Tsikos , C. Harry Knowles , Xiaoxun Zhu , Michael D. Schnee , Ka Man Au , Allan Wirth , Timothy A. Good , Andrew Jankevics , Sankar Ghosh , Charles A. Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Joseph Dobbs , George Kolis , Mark C. Schmidt , Jeffery Yorsz , Patrick A. Giordano , Stephen J. Colavito , David W. Wilz , Barry E. Schwartz , Steven Y. Kim , Dale Fisher , Jon Van Tassell
IPC分类号： G06K7/10
CPC分类号： G06K7/10732
摘要： A tunnel-type digital imaging system for use within retail shopping environments such as supermarkets. The system includes a tunnel configuration arranged about a conveyor structure for transporting objects therethrough, and an image capturing and processing subsystem embodied within the tunnel configuration, for generating a 3D digital imaging volume above the conveyor structure and within the tunnel configuration, for capturing digital images of objects transported through the 3D imaging volume. The image capturing and processing subsystem includes a plurality of coplanar illumination and imaging stations. Each station includes a linear imaging array having optics providing a field of view (FOV) on the linear imaging array that is projected and extends into the 3D imaging volume, and one or more light emitting devices configured together to produce a substantially planar illumination beam (PLIB) that extends in substantially along the same plane as the FOV of the linear imaging array so that each the linear imaging array and corresponding one or more light emitting devices produce at least one coplanar illumination and imaging plane that projects into the 3D imaging volume. A digital image processing subsystem processing digital images of objects passing through the 3D imaging volume, and a system control subsystem controls and/or orchestrates the coplanar illumination and imaging subsystems during system operation.
摘要翻译：一种隧道式数字成像系统，用于零售购物环境（如超市）。该系统包括围绕用于输送物体的输送机结构布置的隧道结构，以及体现在隧道结构内的图像捕获和处理子系统，用于在输送机结构之上和隧道结构内生成用于捕获数字图像的3D数字成像体的物体通过3D成像体积传输。图像捕获和处理子系统包括多个共面照明和成像站。每个站包括线性成像阵列，该线性成像阵列具有在投射并延伸到3D成像体积的线性成像阵列上提供视场（FOV）的光学元件，以及一个或多个配置在一起以产生基本上平面的照明光束 PLIB），其基本上沿着与线性成像阵列的FOV相同的平面延伸，使得每个线性成像阵列和相应的一个或多个发光器件产生投影到3D成像体积中的至少一个共面照明和成像平面。处理通过3D成像体的物体的数字图像的数字图像处理子系统，以及系统控制子系统在系统操作期间控制和/或编排共面照明和成像子系统。

6. 发明授权

US07278578B2 Automatically-activated wireless laser scanning 2D bar code symbol reading system capable of automatically transmitting stored symbol character data when the hand-supportable unit is operated within its RF data communication range and automatically collecting and storing symbol character data when the hand-supportable unit is operated outside of its RF data communication range 有权
公开(公告)号：US07278578B2
公开(公告)日：2007-10-09
申请号：US10630358
申请日：2003-07-30
申请人： Mark Schmidt , Garrett Russell , David M. Wilz, Sr. , Robert Blake , Donald T. Hudrick , Stephen J. Colavito , C. Harry Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Man Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David M. Wilz, Sr. , Robert Blake , Donald T. Hudrick , Stephen J. Colavito , C. Harry Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Man Au , Patrick Giordano
IPC分类号： G06K7/10 , G06K9/22
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.

7. 发明授权

US07154297B1 Programmable logic with programmable volatility 有权
标题翻译：具有可编程波动性的可编程逻辑
公开(公告)号：US07154297B1
公开(公告)日：2006-12-26
申请号：US10905832
申请日：2005-01-21
申请人： Rafael C. Camarota , Robert Blake
发明人： Rafael C. Camarota , Robert Blake
IPC分类号： H03K19/177 , G06F7/38
CPC分类号： H03K19/1776
摘要： Volatility of a programmable logic device (PLD) or field programmable gate array (FPGA) is selectable to be volatile or nonvolatile. In the volatile mode, configuration or other data of the integrated circuit are lost once power is removed from the integrated circuit. In the nonvolatile mode, configuration or other data is retained even when power is removed from the integrated circuit. Upon power-up, in nonvolatile mode, the integrated circuit does not need external data. In an embodiment, the mode, whether volatile or nonvolatile, may be selected during manufacturing. In other embodiment, the mode may be selected by other means, such as by the user.
摘要翻译：可编程逻辑器件（PLD）或现场可编程门阵列（FPGA）的易失性可选择为易失性或非易失性。在易失性模式中，一旦从集成电路移除电源，集成电路的配置或其他数据就会丢失。在非易失性模式中，即使从集成电路去除电力，也保留配置或其他数据。上电时，在非易失性模式下，集成电路不需要外部数据。在一个实施例中，可以在制造期间选择无论是易失性还是非易失性的模式。在另一个实施例中，可以通过其它方式，例如由用户来选择该模式。

8. 发明申请

US20060151604A1 Automated method of and system for dimensioning objects over a conveyor belt structure by applying contouring tracing, vertice detection, corner point detection, and corner point reduction methods to two-dimensional range data maps of the space above the conveyor belt captured by an amplitude modulated laser scanning beam 失效
公开(公告)号：US20060151604A1
公开(公告)日：2006-07-13
申请号：US11294890
申请日：2005-12-05
申请人： Xiaoxun Zhu , Ka Au , Gennady Germaine , Timothy Good , Michael Schnee , Ian Scott , John Groot , David Wilz , George Rockstein , Robert Blake , LeRoy Dickson , Carl Knowles
发明人： Xiaoxun Zhu , Ka Au , Gennady Germaine , Timothy Good , Michael Schnee , Ian Scott , John Groot , David Wilz , George Rockstein , Robert Blake , LeRoy Dickson , Carl Knowles
IPC分类号： G06K7/10
CPC分类号： G06K7/14
摘要： A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.

9. 发明授权

US07048192B2 Wireless bar code symbol reading system employing a base station with a cradle having a hinged support hooks for enabling vertical and horizontal installations 有权
标题翻译：无线条形码符号读取系统采用具有支架的基站，该基座具有用于实现垂直和水平安装的铰接支撑钩
公开(公告)号：US07048192B2
公开(公告)日：2006-05-23
申请号：US10613758
申请日：2003-07-03
申请人： Mark Schmidt , Garrett Russell , David M. Witz, Sr. , Robert Blake , Donald T. Hudrick , Stephen J. Colavito , C. Harry Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Man Au , Patrick Giordano
发明人： Mark Schmidt , Garrett Russell , David M. Witz, Sr. , Robert Blake , Donald T. Hudrick , Stephen J. Colavito , C. Harry Knowles , George Rockstein , Xiaoxun Zhu , John Bonanno , Sung Byun , Congwei Xu , Min Jiang , Lin Wang , Meng Hu , Hongjian Jin , MingQing Ji , Shamei Shi , Ka Man Au , Patrick Giordano
IPC分类号： G06K7/10
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。

10. 发明申请

US20050236486A1 Electronically-controlled mechanically-damped off-resonant light beam scanning mechanism and code symbol readers employing the same 失效
标题翻译：电子控制的机械阻尼非共振光束扫描机构和采用其的代码符号读取器
公开(公告)号：US20050236486A1
公开(公告)日：2005-10-27
申请号：US11098584
申请日：2005-04-04
申请人： Robert Blake , Charles Naylor , Stephen Colavito , Thomas Amundsen , Thomas Carullo , C. Harry Knowles
发明人： Robert Blake , Charles Naylor , Stephen Colavito , Thomas Amundsen , Thomas Carullo , C. Harry Knowles
IPC分类号： G02B5/08 , G02B26/00 , G06F17/30 , G06K7/10
CPC分类号： G06K7/10643 , G06F17/30879
摘要： Disclosed is laser beam scanning apparatus in the form of an electronically-controlled mechanically-damped off-resonant laser beam scanning mechanism. The scanning mechanism comprises an etched scanning element having a small flexible gap region of closely-controlled dimensions disposed between an anchored base portion and a laser beam deflecting portion The light beam deflecting portion supports a permanent magnet and a light beam deflecting element (e.g., mirror or hologram). A reversible magnetic force field producing device (e.g., an electromagnet) is placed in close proximity with the permanent magnet so that it may be forcibly driven into oscillation in response to electrical current flowing through the electromagnet. The resonant frequency of oscillation of the laser beam deflecting portion relative to the anchored base portion is determined by the closely controlled dimensions of the flexible gap region set during manufacture. The steady-state frequency of oscillation of the laser beam deflecting portion is determined by the frequency of polarity reversal of the electromagnet, which is electronically controlled by the polarity of electrical current supplied thereto. In the illustrative embodiments, the forcing frequency of the electromagnet is selected to be at least ten percent off (i.e., greater or less than) the natural resonant frequency of the laser beam deflecting portion of the scanning element. The steady-state frequency of oscillation can be set at the time of manufacture to be any one of a very large range of values (e.g., 25-127 Hz) for use in both low-speed and high-speed laser scanning systems.
摘要翻译：公开了电子控制机械阻尼非共振激光束扫描机构形式的激光束扫描装置。扫描机构包括蚀刻的扫描元件，其具有设置在锚定的基部和激光束偏转部分之间的紧密控制的尺寸的小的柔性间隙区域。光束偏转部分支撑永磁体和光束偏转元件（例如，镜或全息图）。可逆磁场产生装置（例如，电磁体）被放置成与永磁体紧密相邻，使得其可以响应于流过电磁体的电流被强制地驱动成振荡。激光束偏转部分相对于锚定基部的振荡的谐振频率由制造期间设置的柔性间隙区域的紧密控制的尺寸确定。激光束偏转部的振荡的稳态频率由电磁体的极性反转的频率决定，该电磁体由供给的电流的极性进行电子控制。在说明性实施例中，电磁体的强制频率被选择为扫描元件的激光束偏转部分的固有谐振频率的至少百分之十（即大于或小于）。振荡的稳态频率可以在制造时设定为用于低速和高速激光扫描系统的非常大范围的值（例如，25-127Hz）中的任何一个。

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