Multicast communication system allows user to join or leave mult

Details Multicast communication system allows user to join or leave mult Multicast communication system allows user to join or leave mult

1996-07-26

1998-11-03

Luu, Le Hien

3952005, 39520036, G06F 1300

Patent

active

058322299

ABSTRACT:
The multicast communication scheme which can enable a user to easily comprehend the multicast groups existing on the network, easily carry out an operation to join a desired multicast group, and easily specify a desired communication quality. At each user terminal, a virtual space with a plurality of regions defined therein in correspondence to a plurality of multicast groups is displayed on a screen, while an information indicating a range of each region in the virtual space is stored in correspondence to an address information for a corresponding multicast group. A desired position in the virtual space on the screen is specified by an input device, and joining/leaving to/from multicast groups is controlled by using the address information stored in correspondence to a region in the virtual space which contains the desired position. The display on the screen may include a plurality of zones defined within each region in correspondence to a plurality of different communication qualities, so that a communication quality of a multicast communication to be received can be controlled according to a zone within a region in the virtual space which contains the desired position.

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C. Heutema "Routing in the Internet", Chapter 11, 1995, pp. 235-260.

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