Screen sharing and synchronous recording method based on IP network

A technology of screen sharing and simultaneous recording, applied in the field of image processing, which can solve problems such as insufficient color of screen images, inability to save screen operations, and limited number of connections
CN1455372AInactive Publication Date: 2003-11-12SHANGHAI JIAO TONG UNIV
0 Cites 36 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2003-11-12
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

Both the system information hooker and the API hooker are setup at same time and the screen image change area is traced. Based on the screen image change area, the changed screen image data are read fro the display card. The screen data are transmitted through two modes: unicast and multicast. The screen data are stored as the local file. The data received from IP network are decoded by using the reversed coding role. The decoded screen image is displayed on the pointed window. The invention makes general PC possible to run instructional software, meantime the screen image through network shared by other desktop can be synchronous recorded and stored as the local file. The invention possesses the features of good image quality, fast speed, easy of implementation and good portability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for improving screen image processing efficiency based on an IP network, in particular to a screen sharing and synchronous recording method based on an IP network, and belongs to the technical field of image processing. Background technique

[0002] At present, the screen sharing technology based on IP network has been widely used. Among them, the screen sharing technology can be classified into the following four types: 1) Use NetMeeting SDK to realize screen sharing. This is a relatively mature screen sharing technology of Microsoft, which shares the desktop or application to other connected systems through unicast. Good running performance, stable and reliable. But there are the following deficiencies: the color of the screen image is not rich enough (256 colors); it does not support multicast sharing, and the number of connections is limited by the bandwidth; the screen operation cannot be saved or played back; c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More