07353252 is referenced by 283 patents and cites 40 patents.

A system for electronic file collaboration among multiple users is implemented using command messages transmitted on dedicated network channels established between conference participants in a peer-to-peer architecture with total autonomy from a central server. The system employs owner-in-control methodology to allow direct transmission of copies of documents among participants by permission, and to prevent storage of copies of documents used in a conference by participants. Mark-ups, additions, and other actions occurring on a conference document can only be saved by the document owner. An advanced viewer engine is provided for reading, displaying and manipulating electronic data in texts, tables, vectors and 3D model formats, as well as common raster images. A proxy module allows data transmitted through IPFW routers or firewall devices with sufficient authentications and security measures.

Title
System for electronic file collaboration among multiple users using peer-to-peer network topology
Application Number
10/188364
Publication Number
7353252 (B1)
Application Date
July 3, 2002
Publication Date
April 1, 2008
Inventor
Charles White
Alexandria
LA, US
Albert Chih Chieh Yang
Billerica
MA, US
Agent
Roylance Abrams Berdo & Goodman L
Assignee
Sigma Design
LA, US
IPC
G06F 15/16
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