ALBERT C YANG
Architects in Billerica, MA
License number
Massachusetts 7040
Issued Date
Oct 23, 1987
Expiration Date
Aug 31, 1997
Type
Architect
Address
Address
Billerica, MA 01821
Professional information
System For Electronic File Collaboration Among Multiple Users Using Peer-To-Peer Network Topology
US Patent:
7353252, Apr 1, 2008
Filed:
Jul 3, 2002
Appl. No.:
10/188364
Inventors:
Albert Chih-Chieh Yang - Billerica MA, US
Charles White - Alexandria LA, US
Charles White - Alexandria LA, US
Assignee:
Sigma Design - Alexandria LA
International Classification:
G06F 15/16
US Classification:
709204
Abstract:
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.