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United States Patent m
Moran et al.
 SYSTEM FOR THE CAPTURE AND REPLAY OF TEMPORAL DATA REPRESENTING COLLABORATIVE ACTIVITIES
 Inventors: Thomas P. Moran, Palo Alto; Scott L.
Minneman, San Francisco; Steve R.
Harrison, Portola Valley; Donald G.
Kimber, Mountain View; William J.
van Melle, Los Altos; Polle T.
Zellweger, Palo Alto, all of Calif.;
Gordon P. Kurtenbach, Toronto,
Canada; Lynn D. Wilcox, Portola
Valley, Calif.; Sara A. Bly, HMsboro,
Oreg.; William C. Janssen, Jr.,
Mountain View; L. Charles Hebel,
Cupertino, both of Calif.
 Assignee: Xerox Corporation, Stamford, Conn.
 Appl. No.: 552,960
 Filed: Nov. 3,1995
 IntCl.6 G06F3/00
 U.S. CI 395/339; 395/602; 395/331;
 Field of Search 395/328, 330,
395/331, 332, 971, 972, 339, 348
 References Cited
U.S. PATENT DOCUMENTS
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5,317,732 5/1994 Geriach, Jr. et al 395/600
5,359,712 10/1994 Cohen etal 395/161
5,388,197 2/1995 Rayner 395/154
5,404,316 4/1995 Klingler et al 364/514
5,461,711 10/1995 Wang etal 395/328
5,550,965 8/1996 Gabbe et al 395/328 X
5,574,845 11/1996 Benson et al 395/348 X
FOREIGN PATENT DOCUMENTS
495612A2 7/1992 European Pat. Off. G06F 15/02
Pedersen, E.R., McCall, K., Moran, T.P., and Halasz, EG., 'Tivoli: An Electronic Whiteboard for Informal Workgroup Meetings," INTERCHI '93, Apr. 24-29,1993, pp. 391-398.
[ii] Patent Number: 5,717,879  Date of Patent: Feb. 10, 1998
Cruz, G. and Hill, R., "Capturing and Playing Multimedia Events with STREAMS", in Proceedings of ACM Multimedia '94, San Francisco, CA, Oct. 15-20,1994, pp. 193-200.
Lamming, M.G., 'Towards a Human Memory Prosthesis", Technical Report EPC-91-116, Copyright® Rank Xerox EuroPARC, Published in Proceedings of International Workshop Lecture Notes in Computer Science '91, Dagstuhl, Berlin, Jul. 1991.
Lamming, M.G., and Newman, W.M., "Activity-based Information Retrieval Technology in Support of Personal Memory," Technical Report EPC-91-103.1, Copyright® Rank Xerox EuroPARC 1991, pp. 1-16.
(List continued on next page.)
Primary Examiner—Raymond J. Bayerl
Assistant Examiner—A. Katbab
Attorney, Agent, or Firm—Richard B. Domingo
A system for the capture and playback of temporal data representing a collaborative activity such as a meeting. Such temporal data is captured by one or more capture devices (e.g. audio recordings or an electronic whiteboard). Temporal data is comprised of timestreams and events. Timestreams are sets of timestamped data which represent some recordable aspect of the meeting. Events are contained within a timestream that represent natural activities that occurred during the course of the session. Events are used to create indices which provide direct access to a point or span in time during the collaborative activity. Playback of a session is performed under the control of a session access device. Coupled to the session access device are a plurality of players for playing back timestreams. The session access device utilizes event information to create a user interface for controlling session replay. The user interface is comprised of a plurality of windows. Each window may represent a player, a playback controller or an editor.
19 Claims, 22 Drawing Sheets
Rhyne, J.R., and Wolf, C.G., 'Tools for Supporting the Collaborative Process," in Proceedings of the ACM Symposium on User Interface Software and Technology, Monterey, California, Nov. 15-18, 1992, pp. 161-170.
ScreenPlay User's Guide, Release 2.0, Copyright© 1991-1993, RAD Technologies, Inc., Palo Alto, California, pp. 1-4, 9, 12-14, 30-37, and 44-66. Wolf, C.G., Rhyne, J.R., and Briggs, L.K., "Communication and Information Retrieval with a Pen-based Meeting SupportTool," CSCW92 Proceedings, Nov. 1992,pp. 322-329.