System for automatically adding additional data stream to existing media ...

United States Patent

[19]

Riddle

US005854898A [ii] Patent Number: [45] Date of Patent:

5,854,898 Dec. 29, 1998

[54] SYSTEM FOR AUTOMATICALLY ADDING ADDITIONAL DATA STREAM TO EXISTING MEDIA CONNECTION BETWEEN TWO END POINTS UPON EXCHANGE OF NOTIFYING AND CONFIRMATION MESSAGES THEREBETWEEN

[75] Inventor: Guy G. Riddle, Los Gatos, Calif.

[73] Assignee: Apple Computer, Inc., Cupertino, Calif.

[21] Appl. No.: 396,198

[22] Filed: Feb. 24, 1995

[51] Int. CI. G06F 15/16

[52] U.S. CI 395/200.61; 375/200.34;

375/200.57; 375/200.67

[58] Field of Search 364/240.9, 242.94,

364/222.9, 284.3, 284.4; 370/60, 94.1; 379/202; 395/200.1, 650, 200.61, 200.34, 200.57, 200.67

OTHER PUBLICATIONS

PCT International Search Report (PCT/US96/02459) mailed Aug. 7, 1996.

Mon-Song Chen, et al., "Designing a Distributed Collaborative Environment," Communication for Global Users, including a Communications Theory Mini Conference, Orlando, Dec. 6-9, 1992, Institute of Electrical and Electronics Engineers, pp. 219-219.

W.H. Leung, et al., "Multimedia Conferencing Capabilities in an Experimental Fast Packet Network," Proceedings of the International Switching Symposium, Yokohama, Oct. 25, 1992, Institute of Electronics, Information and Communication Engineers, pp. 258-262.

J. Ott et al, "Multicasting the ITU MCS: Integrating Pointto-Point and Multicast Transport," Singapore ICCS 1994, pp. 1013-1017.

Dynamic Conference Call Participation, IBM Technical Bulletin, pp. 1135-1138, Aug. 1985.

Control of Video Telephony from a Data Conferencing System, IBM Technical Disclosure Bulletin, pp. 327-332, Oct. 1994.

Intelligent Packet Relay in Distributed Multimedia Systems,
IBM Technical Disclosure Bulletin, pp. 211-214, Jul. 1994.
R. Bubenik et al., Multipoint Connection Management in
High Speed Networks, INFOCOM '91, pp. 59-67.

Primary Examiner—-Thomas C. Lee
Assistant Examiner—Ki S. Kim

Attorney, Agent, or Firm—Blakely, Sokoloff, Taylor &
Zafman

An automatic method for adding an additional data stream, such as auxiliary teleconference data, to an existing media connection between two endpoints, such as a teleconference between teleconferencing systems. A first endpoint identifies the availability of a second data stream to a second endpoint via a first message which references the existing media connection. The first endpoint notifies the second endpoint of the desire to connect via a second message. The second endpoint notifies the first endpoint of confirmation to connect via a third message. The first and the second endpoint then establish communication wherein the additional data stream is associated in a first endpoint and the second endpoint with the existing media connection.

38 Claims, 27 Drawing Sheets

Page 2

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