中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.017 seconds)

    Video-derived segmentation-gating apparatus for optical character recognition
    2.
    发明授权
    Video-derived segmentation-gating apparatus for optical character recognition 失效
    用于光学字符识别的视频衍生分级提取设备

    公开(公告)号：US3662341A

    公开(公告)日：1972-05-09

    申请号：US3662341D

    申请日：1970-09-25

    Applicant: IBM

    Inventor： BAUMGARTNER RICHARD J ,  LOVGREN JEFFREY L ,  MCCULLOUGH JOHN W

    IPC: G06K9/34 ,  G06K9/04

    CPC classification number: G06K9/34 ,  G06K2209/01

    Abstract: A method and apparatus for gating segmentation scheme generators in accordance with a detected video signal. A video operator signal derived from detected video signals is compared with a threshold signal. One of a plurality of segmentation scheme generators is gated on in accordance with the comparison of the video operator signal and the threshold signal.

    Abstract translation: 一种根据检测到的视频信号门控分割方案生成器的方法和装置。 将从检测到的视频信号导出的视频操作者信号与阈值信号进行比较。 根据视频操作者信号和阈值信号的比较，门控多个分割方案生成器之一。

    BUS TO BUS TRANSLATION
    5.
    发明专利
    BUS TO BUS TRANSLATION 未知

    公开(公告)号：CA1244141A

    公开(公告)日：1988-11-01

    申请号：CA498869

    申请日：1986-01-02

    Applicant: IBM

    Inventor： BLEVINS BALLARD J ,  KULPA WILLIAM G ,  MATHIS JOSEPH R ,  MCCULLOUGH JOHN W

    IPC: G06F13/36 ,  G06F12/06 ,  G06G7/02

    Abstract: BUS TO BUS TRANSLATION The present invention relates to data processing systems having a central processing unit and a global storage unit connected by a system bus, and an I/O bus which is connected to the system bus by means of a bus converter. Selected I/O devices are randomly attached to the I/O bus. The present invention provides a programmable bus converter which dynamically inserts appropriate address control information into messages transmitted from the I/O bus to the system bus. In one preferred embodiment of the present invention the bus converter is provided with means whereby access can be denied to and from selected I/O devices.

    TASK HANDLING APPARATUS FOR A COMPUTER SYSTEM
    7.
    发明专利
    TASK HANDLING APPARATUS FOR A COMPUTER SYSTEM 未知

    公开(公告)号：CA1103368A

    公开(公告)日：1981-06-16

    申请号：CA301827

    申请日：1978-04-24

    Applicant: IBM

    Inventor： HOFFMAN ROY L ,  KEMPKE WILLIAM G ,  MCCULLOUGH JOHN W ,  SOLTIS FRANK G ,  TURNER RICHARD T

    IPC: G06F9/46 ,  G06F9/48 ,  G06F9/18

    Abstract: TASK HANDLING APPARATUS FOR A COMPUTER SYSTEM Task handling apparatus in a computer system is structured to be common to system control tasks, user tasks and I/O tasks. Although the task handling apparatus contains a task priority structure, all tasks are handled in the same manner, and there are no fixed interrupt levels for I/O tasks. There are N levels of priority, and N is variable. Each task is a server for a functional request. Task dispatching elements (TDE's) are enqueued in priority sequence on a task dispatching queue (TDQ). A task dispatcher functions to dispatch the highest priority TDE on the TDQ, if any, and to perform task switching. Intertask communication is accomplished by send message, send count, receive message and receive count mechansisms, and is coupled with task synchronization. Task synchronization is achieved by dequeueing and enqueueing TDE's on the TDQ. An active task becomes inactive dispatchable when a higher priority TDE is enqueued on the TDQ by send message or send count mechanisms. The active task becomes inactive waiting when a receive message or receive count is not satisfied. An inactive dispatchable task becomes the active task when it becomes the highest priority enqueued TDE on the TDQ by the receive message or receive count mechanisms. An inactive waiting task becomes either the active task or an inactive dispatchable task after being enqueued on the TDQ by the send message or send count mechanisms, depending upon whether it is the highest or other than the highest priority TDE on the TDQ.

Patent Agency Ranking