1991-12-31
1994-08-16
Herndon, Heather R.
395148, 395161, G06F 1562
Patent
active
053393899
ABSTRACT:
The invention relates to the selective protection of blocks of text or other portions of a shared data object in collaborative computer based system from simultaneous manipulation by two or more users. The collaborative computer based system includes a network connecting a plurality of terminals for communication. Each terminal includes an output display device and a user input device. The collaborative computer based system includes a shared data object simultaneously accessible by a plurality of users of the system. Responsive to a user obtaining access to the shared data object, the user is assigned a cursor available for display on the visual display devices of all current users. A user may attempt to protect portions of the shared data object with a lock region by selecting position coordinates for such a lock region. If the position coordinates do not include any portion of any previously established lock region, a lock region is established, blocking manipulation of the portion of the shared data object so covered against changes associated with cursors other than that of the establishing user. Exercise of appropriate commands release a prior lock region associated with the user.
REFERENCES:
patent: 4558413 (1991-04-01), Schmidt et al.
patent: 4635189 (1987-01-01), Kendall
patent: 4651299 (1987-03-01), Miyazaki et al.
patent: 4654483 (1987-03-01), Imai et al.
patent: 4698752 (1987-10-01), Goldstein et al.
patent: 4752773 (1988-06-01), Togawa
patent: 4802104 (1989-01-01), Ogiso
patent: 4853843 (1989-01-01), Ecklund
patent: 4890098 (1989-12-01), Dawes et al.
patent: 4890257 (1989-12-01), Anthias et al.
patent: 4958301 (1990-09-01), Kobayashi
patent: 4974173 (1990-11-01), Stefik et al.
patent: 5001628 (1991-03-01), Johnson et al.
patent: 5008853 (1991-04-01), Bly et al.
C. A. Ellis et al., "Group Wear," Communications of the ACM, vol. 34, No. 1, Jan., 1991, pp. 38-58.
G. Foster, "Collaborative Systems and Multiuser Interface," doctoral dissertation, Oct. 31, 1986.
Stefik et al., "Beyond the Chalk Board: Computer Support for Collaboration and Problem Solving in Meetings," Communications of the ACM, vol. 30, No. 1, Jan. 1987.
I. Greif et al., "Data Sharing in Group Work," Conference on computer Supported Cooperative Work of 1986.
Sarin et al., "Computer Based Real-time Conferencing Systems," Computer Journel of IEEE, Oct., 1985.
Stefik et al., "WYSIWIS Revised: Early Experiences with Multiuser Interfaces," ACM, 1987, p. 153.
"Design and Implementation of Gordion, an Object Based Management System" reported in the Proceedings of Third International Conference On Data Engineering, 1987, IEEE, Washington, D.C., United States, pp. 226-234.
Copy of European Search Report of Jul. 2, 1993.
Bates Cary L.
Ryan Jeffrey M.
Dillon Andrew J.
Herndon Heather R.
International Business Machines - Corporation
Roth Steven
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