MULTI-LEVEL RADIO-FREQUENCY COMMUNICATION SYSTEM
    2.
    发明申请
    MULTI-LEVEL RADIO-FREQUENCY COMMUNICATION SYSTEM 审中-公开
    多级无线电频率通信系统

    公开(公告)号:WO1992002084A1

    公开(公告)日:1992-02-06

    申请号:PCT/US1991005234

    申请日:1991-07-24

    Abstract: A digital data communication system enables host computer to communicate with a great number of data terminals having specified functions. Communication from the host computer proceeds through a medium or long distance, high power transceiver and through a multiplex system to one of a number of portable communication devices. The communication devices preferably contain internal power supplies, such as rechargeable NiCad battery packs. The devices may be carried on a person's belt, or may be mounted within or on a service vehicle, for example, a forklift truck for use in warehouse operations or a merchandise delivery route vehicle. The communication devices are adapted to function as communication relay devices between the host computer and selected ones of the data terminals. Each communication device includes a first type, low power transceiver to communicate within a first channel and at a low power transmission level with a selected number of the data terminals which also feature such first type transceivers. Each communication device further includes a high power transceiver to communicate within a second channel with the transceiver of the host computer. A microprocessor operated address controller allows the communication device to control low power communication among the data terminals by receiving and re-transmitting locally directed communications. The controller and the controlling protocol further relays data messages between the low power communication level and host computer. In operation the device receives data messages on one of the transceivers and transmits them on the other. The communication device further may contain sufficient memory capacity to permit periodic batch type data transmission between the host computer and the communication device. The ability to switch from a high power, high precision and high cost transmission system to a low power, low precision and low cost transmission system at the level at which a great number of data terminal devices are used provides system flexibility at a reasonable cost.

    Abstract translation: 数字数据通信系统使得主机能够与具有指定功能的大量数据终端进行通信。 来自主计算机的通信通过中长距离,大功率收发器进行,并且通过多路复用系统到达许多便携式通信设备之一。 通信设备优选地包含诸如可再充电NiCad电池组的内部电源。 这些设备可以携带在人的皮带上,或者可以安装在服务车辆内或其上,例如用于仓库操作的叉车或商品运送路线车辆。 通信设备适于在主计算机和所选择的数据终端之间用作通信中继设备。 每个通信设备包括第一类型的低功率收发器,用于在具有这种第一类型收发器的选定数量的数据终端的第一信道内和低功率传输级别进行通信。 每个通信设备还包括大功率收发器,以在第二信道内与主计算机的收发信机进行通信。 微处理器操作的地址控制器允许通信设备通过接收和重新发送本地定向的通信来控制数据终端之间的低功率通信。 控制器和控制协议进一步在低功率通信级和主机之间中继数据报文。 在操作中,设备在其中一个收发器上接收数据消息,并在另一个收发器上传输。 通信设备还可以包含足够的存储器容量以允许主计算机和通信设备之间的周期性批量类型数据传输。 从大功率,高精度和高成本传输系统切换到低功耗,低精度和低成本传输系统的能力,在大量数据终端设备的使用水平上,以合理的成本提供了系统灵活性。

    PHASED ARRAY LASER SCANNER
    3.
    发明申请
    PHASED ARRAY LASER SCANNER 审中-公开
    相位阵列激光扫描仪

    公开(公告)号:WO1994019765A1

    公开(公告)日:1994-09-01

    申请号:PCT/US1994001758

    申请日:1994-02-22

    Abstract: The present invention discloses a phased array laser scanner which utilizes electronically steerable beams much like a phased-array radar. Beam steering may be utilized to control a bar code scanner such that a phased delay in laser output produces an electronically steerable laser light source. It is possible to then preferentially control the laser light output spatial location since an array driven at differing phases would constructively interact so as to provide a location of maximum intensity. The phased array laser light may then be utilized to read and decode indicia via standard laser scanner means.

    Abstract translation: 本发明公开了一种相控阵激光扫描仪,其利用电子可操纵的射束,类似于相控阵雷达。 光束转向可以用于控制条形码扫描器,使得激光输出中的相位延迟产生电子可操纵的激光光源。 因此,可以优先控制激光输出空间位置,因为在不同阶段驱动的阵列将建设性地相互作用以提供最大强度的位置。 然后可以利用相控阵激光器通过标准激光扫描器装置读取和解码标记。

    HAND-HELD DATA CAPTURE SYSTEM WITH INTERCHANGEABLE MODULES AND INTERACTIVE CONTROL CIRCUITS
    4.
    发明申请
    HAND-HELD DATA CAPTURE SYSTEM WITH INTERCHANGEABLE MODULES AND INTERACTIVE CONTROL CIRCUITS 审中-公开
    具有可交互模块和交互控制电路的手持式数据采集系统

    公开(公告)号:WO1992015073A1

    公开(公告)日:1992-09-03

    申请号:PCT/US1992001461

    申请日:1992-02-25

    Abstract: A battery powered, portable, hand-held data terminal (10) of modular structure includes a base module (16, 136) with a keyboard (18) and a display screen (19) and their respective electrical functions (167, 164). A data and communications module may be selected from a number of different data and communications modules (48, 55, 75, 135) each having different types of data communications transceiver, or including in addition data collection devices, such as shelf label readers or bar code readers (76). The base module (16, 136) includes a microprocessor-controlled data communications and control interface having a predetermined protocol. To adapt the various type of data and communications modules for selection of any one thereof to become attached to the base module and function therewith, each of the data and communications modules includes a microprocessor (125, 144) operable to function as an emulator to interact with the microprocessor of the base module (16, 136).

    Abstract translation: 具有模块化结构的电池供电的便携式手持式数据终端(10)包括具有键盘(18)和显示屏(19)的基本模块(16,136)及其各自的电功能(167,164)。 数据和通信模块可以从多个不同数据和通信模块(48,55,75,1005)中选择,每个数据和通信模块具有不同类型的数据通信收发器,或者还包括数据收集设备,例如货架标签读取器或条 代码阅读器(76)。 基本模块(16,136)包括具有预定协议的微处理器控制的数据通信和控制接口。 为了适应各种类型的数据和通信模块以选择其中任何一个以附加到基本模块并且与其一起发挥功能,数据和通信模块中的每一个包括微处理器(125,144),其可操作以用作仿真器以进行交互 与基本模块(16,136)的微处理器连接。

    HAND-HELD DATA CAPTURE SYSTEM WITH INTERCHANGEABLE MODULES
    5.
    发明申请
    HAND-HELD DATA CAPTURE SYSTEM WITH INTERCHANGEABLE MODULES 审中-公开
    具有可交互模块的手持式数据采集系统

    公开(公告)号:WO1992010803A1

    公开(公告)日:1992-06-25

    申请号:PCT/US1991009421

    申请日:1991-12-12

    Abstract: A portable, hand-held data collection terminal unit is of modular structure including among other modules a display screen module, a keyboard module and a base module, each of which may be chosen from a plurality of modules available for assembly into the terminal unit. Consequently, a wide combination of terminal units may be assembled from a comparatively limited number of modular choices, such that the cost of assembly of a terminal unit with specific functions may be minimized. A particular selected module is a scanning module including a pivotable scanning head to permit a user to adjust the scanning head to a convenient position for operating the scanning module without sacrifice of visual access to a display screen of the display screen module. The display screen module may be selected from modules of standard width equal to the width of the terminal unit, of extended width extending when assembled to a selected keyboard module beyond either or both lateral edges of the terminal unit. The selected display screen module may include one of different sized screens, function keys and alphabetical keys.

    Abstract translation: 便携式手持式数据采集终端单元是模块化结构,其中包括显示屏模块,键盘模块和基本模块,其中每一模块可以从可用于组装到终端单元中的多个模块中选择。 因此,可以从相对有限数量的模块化选择组装终端单元的广泛组合,使得具有特定功能的终端单元的组装成本可以最小化。 特定选择的模块是包括可枢转扫描头的扫描模块,以允许用户将扫描头调节到用于操作扫描模块的方便位置,而不牺牲对显示屏模块的显示屏的可视访问。 显示屏模块可以从等于终端单元的宽度的标准宽度的模块中选择,当组装到选定的键盘模块上延伸的延伸宽度超过终端单元的任一侧或两个侧边缘时。 所选择的显示屏模块可以包括不同尺寸的屏幕之一,功能键和字母键。

Patent Agency Ranking