公开(公告)号：WO1995017724A1

公开(公告)日：1995-06-29

申请号：PCT/US1994014682

申请日：1994-12-20

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  MAHANY, Ronald, L.

IPC: G06F13/00

CPC classification number: H04W88/10 ,  H04L1/22 ,  H04L69/40 ,  H04W24/00 ,  H04W84/12

Abstract: A high reliability access point for RF communications in a wireless local area network. The high reliability access point includes a central processing unit (13) for handling high level protocol functions and for interfacing with the infrastructure of the local area network (26). The high reliability access point also includes at least two wireless adapters (15, 16). Each wireless adapter includes a radio (17), a media access control (MAC) processor (19) for handling low level protocol functions, and at least one antenna (21). The multiple wireless adapters (15, 16) allow the access point to perform self monitoring, reduce the effects of multipath interference, reduce some occurrences of collisions at the access point and provide infrastructure backup in the event of an infrastructure failure. The access points also allow for wireless network infrastructure communication for connection of one or more remote access points to the infrastructure. A backup power supply for the access point is also shown.

Abstract translation: 用于无线局域网中RF通信的高可靠性接入点。 高可靠性接入点包括用于处理高级协议功能并与局域网（26）的基础设施进行接口的中央处理单元（13）。 高可靠性接入点还包括至少两个无线适配器（15,16）。 每个无线适配器包括用于处理低级协议功能的无线电（17），媒体接入控制（MAC）处理器（19）和至少一个天线（21）。 多个无线适配器（15,16）允许接入点执行自我监控，减少多路径干扰的影响，减少接入点的一些碰撞发生，并在基础架构故障的情况下提供基础架构备份。 接入点还允许用于将一个或多个远程接入点连接到基础设施的无线网络基础设施通信。 还显示了接入点的备用电源。

公开(公告)号：WO1995016973A1

公开(公告)日：1995-06-22

申请号：PCT/US1994013323

申请日：1994-11-16

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  VADIM, Laser

IPC: G06K07/10

CPC classification number: G06K7/1417 ,  G06K7/10574 ,  G06K7/10722 ,  G06K7/10752 ,  G06K7/10811 ,  G06K17/0022 ,  G06K2007/10524 ,  G06K2207/1011 ,  G06K2207/1013

Abstract: The present invention utilizes two-dimensional photosensitive arrays (SR, SL) for decoding two-dimensional optically readable information sets which provides a best focus. A lens is provided for each of the photosensitive arrays movable in a trajectory (k-k', m-m') such that as the lens moves away from the photosensitive array, the distance between the lenses decreases. The varying distance between the lenses provides image zones (A, B, C) having the same overlap in each zone.

Abstract translation: 本发明利用二维光敏阵列（SR，SL）来解码提供最佳焦点的二维光学可读信息集。 为每个可在轨迹（k-k'，m-m'）中移动的光敏阵列提供透镜，使得当透镜从光敏阵列移开时，透镜之间的距离减小。 透镜之间的变化距离提供在每个区域中具有相同重叠的图像区域（A，B，C）。

公开(公告)号：WO1995012942A1

公开(公告)日：1995-05-11

申请号：PCT/US1994012742

申请日：1994-11-04

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  MEIER, Robert, C.

IPC: H04L12/44

CPC classification number: H04L45/48 ,  H01Q1/007 ,  H01Q1/241 ,  H04L45/00 ,  H04L45/04 ,  H04L69/14 ,  H04W40/24 ,  H04W40/36

Abstract: A data communication network for providing dynamic routing through both wireless and wired subnetworks to support wireless communication devices and wired remote stations is disclosed. In the wireless network (103), the wireless communication devices (116, 118) can be mobile RF terminals, while the wired remote stations (111) might be personal computers attached to a wired subnet (101), such as an ethernet coaxial cable. The wireless network architecture utilizes a spanning tree configuration which provides for transparent bridging between wired subnets and the wireless subnets. The spanning tree configuration provides dynamic routing to and from wireless communication devices and remote stations attached to standard IEEE 802 LANs.

Abstract translation: 公开了一种用于通过无线和有线子网提供动态路由以支持无线通信设备和有线远程站的数据通信网络。 在无线网络（103）中，无线通信设备（116,118）可以是移动RF终端，而有线远程站（111）可以是连接到有线子网（101）的个人计算机，诸如以太网同轴电缆 。 无线网络架构利用生成树配置，其提供有线子网和无线子网之间的透明桥接。 生成树配置提供了连接到标准IEEE 802 LAN的无线通信设备和远程站的动态路由。

公开(公告)号：WO1994027172A1

公开(公告)日：1994-11-24

申请号：PCT/US1994005381

申请日：1994-05-11

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION

IPC: G02B05/04

CPC classification number: G02B5/04 ,  G02B7/1805

Abstract: The present invention is a focusing system for focusing optically readable information over a substantial range of distances. The focusing system (10) includes a first optical wedge (12) and a second optical wedge (14) with a reciprocating drive for moving the prisms relative to each other.

Abstract translation: 本发明是用于在相当长的距离范围内聚焦光学可读信息的聚焦系统。 聚焦系统（10）包括具有用于相对于彼此移动棱镜的往复驱动的第一光楔（12）和第二光楔（14）。

公开(公告)号：WO1993014470A1

公开(公告)日：1993-07-22

申请号：PCT/US1992006157

申请日：1992-07-23

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  LASER, Vadim

IPC: G06K07/10

CPC classification number: G06K7/10881 ,  G06K7/10811 ,  G06K2007/10485 ,  G06K2207/1013

Abstract: A portable optical reader system for reading optical information over a substantial range of distances includes a casing having a light receiving opening for alignment with optical information. Further included is a reading sensor for converting a reflected light image of optical information into an information signal and reflected light optical elements for forming a reflected light image. The optical system is adjustable to tend to focus a reflected light image of optical information, located within a substantial range of distances, onto the reading sensor. A light beam generator is associated with the casing and directed relative to the optical elements and the light receiving opening such that a light beam generated thereby will impinge on an information carrier, having optical information to be read, and will be reflected therefrom through the light receiving opening and via the optical elements to the reading sensor. Since the position of impingement of the reflected light beam on the reading sensor is a function of the range of the information carrier from the image sensor, the optical system may be adjusted to focus a reflected light image of optical information associated with the information carrier, at least in part, according to the position of impingement of the reflected light beam on the reading sensor.

Abstract translation: 用于在相当大的距离范围上读取光学信息的便携式光学读取器系统包括具有用于与光学信息对准的光接收开口的壳体。 还包括用于将光学信息的反射光图像转换成信息信号的读取传感器和用于形成反射光图像的反射光学元件。 光学系统是可调节的，以将位于相当大的距离范围内的光学信息的反射光图像聚焦到读取传感器上。 光束发生器与壳体相关联并相对于光学元件和光接收开口引导，使得由此产生的光束将撞击到具有要读取的光学信息的信息载体上，并且将通过光从其反射 接收开口并通过光学元件传递到读取传感器。 由于反射光束在读取传感器上的撞击的位置是来自图像传感器的信息载体的范围的函数，所以可以调节光学系统以聚焦与信息载体相关联的光学信息的反射光图像， 至少部分地根据反射光束撞击读取传感器的位置。

公开(公告)号：WO1990016033A1

公开(公告)日：1990-12-27

申请号：PCT/US1990003282

申请日：1990-06-07

Applicant: NORAND CORPORATION ,  KOENCK, Steven, E. ,  MILLER, Phillip ,  DANIELSON, Arvin, D. ,  MAHANY, Ronald, L. ,  DURBIN, Dennis, A. ,  CARGIN, Keith, K., Jr. ,  HANSON, George, E. ,  SCHULTZ, Darald, R. ,  GEERS, Robert, G. ,  BOATWRIGHT, Darrell, L. ,  GIBBS, William, T. ,  KELLY, Stephen, J.

Inventor： NORAND CORPORATION

IPC: G06F15/20

CPC classification number: G06F1/1698 ,  B60R11/02 ,  B60R11/0241 ,  G06F1/1626 ,  G06F1/163 ,  G06F1/1632 ,  G06F1/28 ,  G06F1/3203 ,  G06F1/3228 ,  G06F3/0231 ,  G06K7/10574 ,  G06K7/10584 ,  G06K7/10702 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/1093 ,  G06K7/1098 ,  G06K17/0022 ,  G06Q10/08 ,  G06Q20/343 ,  G07F7/02 ,  G07G1/0045 ,  H01Q1/22 ,  H02J9/005 ,  H04B1/3883 ,  H04B17/0085 ,  H04B17/318 ,  H04B2001/3894 ,  H04W88/02 ,  Y02D70/166 ,  Y02D70/40

Abstract: The disclosure relates to battery powered hand-held data entry terminals (310) wherein a peripheral module may contain an automatically operating full image reader (313) and a wireless communication unit (312). The reader reads at least one full line of indicia and may comprise a laser bar code scanner or a flash type image reader. Preferably the reader has uniform resolution in orthogonal directions in the field of view so that an area image can be read at any arbitrary angular orientation and re-oriented as a stored digital image to a normalized orientation before decoding. The user interface (11, 12) may lie in a first longitudinally extended layer and the peripheral module (313) may lie in a second longitudinally extended adjoining layer. In normal reading disposition of the automatic reader (313), the user interface (11, 12) may be close to its normal orientation for user interaction therewith.

Abstract translation: 本公开涉及电池供电的手持式数据输入终端（310），其中外围模块可以包含自动操作的全图像读取器（313）和无线通信单元（312）。 读取器读取至少一行完整的标记，并且可以包括激光条形码扫描器或闪光型图像读取器。 优选地，读取器在视场中具有在正交方向上的均匀分辨率，使得可以在任何任意角度取向处读取区域图像，并将其作为存储的数字图像重新定向到解码之前的归一化方向。 用户界面（11,12）可以位于第一纵向延伸层中，并且外围模块（313）可以位于第二纵向延伸的相邻层中。 在自动阅读器（313）的正常读取配置中，用户界面（11,12）可以接近其正常定向以与其进行用户交互。

公开(公告)号：WO1997049060A1

公开(公告)日：1997-12-24

申请号：PCT/US1997010777

申请日：1997-06-20

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  DURBIN, Dennis, A. ,  RASMUSSEN, Jon

IPC: G06K07/10

CPC classification number: G06K7/1491 ,  G06K7/14

Abstract: A coded image capture and decoding system (10) includes an image capture (14) unit and a host unit (12) which operate to capture image data, generate a plurality of coded images, and, thereafter, to decode the plurality of coded images with a non-dedicated host processing circuitry. The system comprises an image capture unit (14) and a host unit (12) which may be installed together or separately in one or more physical devices. The image capture unit (14) includes an image processor, an image buffer, an optical unit, an image buffer and an interface module. The host unit (12) includes a host processor, conventional hardware and software functions, and an interface module. During a capture cycle, the image capture unit (14) repeatedly captures images from a coded target (16). When the capture cycle is complete, the image capture unit (14) attempts to interrupt the host unit (12). The host unit (12) responds to the interrupt when it is available, receives the plurality of coded images over a communication link, and performs decode processing of the coded images.

Abstract translation: 编码图像捕获和解码系统（10）包括图像捕获（14）单元和主机单元（12），其操作以捕获图像数据，生成多个编码图像，然后解码多个编码图像 具有非专用主机处理电路。 该系统包括图像捕获单元（14）和主机单元（12），其可以一起安装在一个或多个物理设备中或单独地安装。 图像捕获单元（14）包括图像处理器，图像缓冲器，光学单元，图像缓冲器和接口模块。 主机单元（12）包括主处理器，常规硬件和软件功能以及接口模块。 在捕获周期期间，图像捕获单元（14）重复地捕获来自编码目标（16）的图像。 当捕获周期完成时，图像捕获单元（14）尝试中断主机单元（12）。 主机单元（12）在可用时响应中断，通过通信链路接收多个编码图像，并对编码图像进行解码处理。

公开(公告)号：WO1994027250A1

公开(公告)日：1994-11-24

申请号：PCT/US1994005380

申请日：1994-05-11

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION

IPC: G06K07/10

CPC classification number: G06K7/1417 ,  G06K7/10722 ,  G06K7/10752 ,  G06K7/10811 ,  G06K17/0022 ,  G06K2007/10524 ,  G06K2207/1011

Abstract: The present invention utilizes two-dimensional photosensitive arrays (SR, SL) for decoding two-dimensional optically readable information sets which provides a best focus. A lens is provided for each of the photosensitive arrays movable in a trajectory (k-k', m-m') such that as the lens moves away from the photosensitive array, the distance between the lenses decreases. The varying distance between the lenses provides imnage zones (A, B, C) having the same image overlap in each zone.

Abstract translation: 本发明利用二维光敏阵列（SR，SL）来解码提供最佳焦点的二维光学可读信息集。 为每个可在轨迹（k-k'，m-m'）中移动的光敏阵列提供透镜，使得当透镜从光敏阵列移开时，透镜之间的距离减小。 透镜之间的变化距离提供了在每个区域中具有相同图像重叠的图像区域（A，B，C）。

公开(公告)号：WO1994019736A1

公开(公告)日：1994-09-01

申请号：PCT/US1994002091

申请日：1994-02-28

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  DANIELSON, Arvin, D. ,  BOATWRIGHT, Darrell, L. ,  SCHULTZ, Darald, R. ,  AUSTIN, Rickey, G. ,  SILVA, Dennis, E.

IPC: G06F01/32

CPC classification number: G06F1/28 ,  G06F1/1626 ,  G06F1/1632 ,  G06F1/1656 ,  G06F1/1662 ,  G06F1/1684 ,  G06F1/3203 ,  G06F1/3228 ,  G06F1/3293 ,  G06F3/0231 ,  G06F9/4418 ,  G06F15/0225 ,  G06F2200/1614 ,  G06F2200/1632 ,  G06F2200/1633 ,  G06K7/10881 ,  Y02D10/122 ,  Y02D10/44

Abstract: A portable data collection terminal (10) has an elongate housing (12) with a hand grip conforming rear surface. A front surface (14) features a numerical keyboard (16) adjacent a lower end of the housing and an LCD screen (15) adjacent the keyboard toward an upper end of the housing. The display screen is of elongate rectangular shape, its length extending longitudinally of the housing of the data terminal. The active area of the display screen is covered by a touch sensitive overlay screen which is configured in one mode of operation of the data terminal into an alphabetical keyboard. The orientation of the display is switchable between orientations in which the line direction of the displayed data extends across or longitudinally of the data terminal. The keys (46), of the numerical keyboard (16) are identified by indicia (42) disposed on a template (13). The orientation of the template may be sensed to switch the orientation of the displayed data and touch sensitive key identifiers to correspond to the orientation of the indicia on the template. As a further embodiment an electromagnetic activation by a pen may be used to enter data into a data terminal. Power saving shutdown extends the battery life of the data terminal. A shutdown mode permits resumption of operations by depression of a key.

Abstract translation: 便携式数据收集终端（10）具有带手柄的后表面的细长壳体（12）。 前表面（14）具有与壳体的下端相邻的数字键盘（16）和与键盘相邻的液晶屏（15）朝向壳体的上端。 显示屏具有细长矩形形状，其长度沿数据终端的壳体纵向延伸。 显示屏幕的有效区域由触敏覆盖屏幕覆盖，该屏幕被配置为数据终端的一种操作模式成为字母键盘。 显示器的方向可以在显示数据的行方向跨越数据终端或纵向的方向之间切换。 数字键盘（16）的键（46）由布置在模板（13）上的标记（42）标识。 可以感测模板的取向以切换所显示的数据的方向和触摸敏感的键标识符，以对应于模板上的标记的取向。 作为进一步的实施例，可以使用笔的电磁激活来将数据输入数据终端。 省电关机延长了数据终端的电池寿命。 关闭模式允许通过按下键恢复操作。

公开(公告)号：WO1994015314A1

公开(公告)日：1994-07-07

申请号：PCT/US1993012459

申请日：1993-12-21

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  KEEHN, William, H., II ,  DURBIN, Dennis, A. ,  KOENCK, Steven, E.

IPC: G06K07/10

CPC classification number: G06K7/10811 ,  G06K2007/10524 ,  G06K2207/1013

Abstract: A non-laser type scanner for reading optically readable information within a three dimensional area which utilizes a two dimensional photosensitive array associated with a plurality of lenses wherein each lens is discretely associated with a line of resolution of the array. A computer connected to the array may be programmed and operated for decoding the output of the array such that optically readable information may be decoded within a three dimensional area.

Abstract translation: 一种用于在三维区域内读取光学可读信息的非激光型扫描仪，其利用与多个透镜相关联的二维感光阵列，其中每个透镜离散地与阵列的分辨率线相关联。 连接到阵列的计算机可以被编程和操作用于对阵列的输出进行解码，使得光学可读信息可以在三维区域内解码。