Method for Transmitting the Identity of a Multicast Message Method for Transmitting a Multicast Message for Receiving a Multicast Message and Data Packet
1 Assignment
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Accused Products
Abstract
A simple and powerful method transmits an identity of a multicast message from a transmitter to several receivers, connected to the transmitter by a common transmission medium. The identity is assigned to the multicast message. A broadcast message is generated, containing the identity and pre-determined addresses specifying the receivers of the multicast message. The broadcast message is transmitted from the transmitter to all receivers connected to the receiver by the transmission medium. The broadcast message is checked by the receivers for storage of the identity by the receivers specified by the addresses thereof.
46 Citations
47 Claims
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1-22. -22. (canceled)
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23. A method for transmission, comprising:
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assigning an identity to a multicast message; producing a broadcast message which contains the identity and addresses which identify predetermined recipients of the multicast message; transmitting the broadcast message via a common transmission medium, the broadcast message being transmitted from a transmitter to all recipients connected to the transmitter via the common transmission medium; checking the broadcast message by the recipients; and storing the identity at the predetermined recipients having respective addresses contained in the broadcast message. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An apparatus for transmission, comprising:
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a management device to assign an identity to a multicast message; a packet data production device to produce the multicast message such that the multicast message contains the identity; a broadcast packet production device to produce a broadcast message which contains the identity and a plurality of addresses which identify predetermined recipients of the multicast message; and a packet transmission device to transmit the broadcast message to all recipients linked to the apparatus via a common transmission medium, and to transmit the multicast message at a time offset with respect to transmission of the broadcast message, the multicast message being transmitted via the common transmission medium to the predetermined recipients predetermined.
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40. A receiver apparatus, comprising:
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a receiver to receive a broadcast message and a multicast message, both the broadcast message and the multicast message being received via a common transmission medium; a broadcast processing device to analyze whether the broadcast message contains an address which identifies the apparatus and, if the broadcast message does contain the address which identifies the apparatus, to read an identifier for the multicast message, the identifier being contained in the broadcast message; and a multicast processing device to store the identifier, and to filter received multicast messages to filter out all broadcast messages not having an identifier matching the stored identifier. - View Dependent Claims (41)
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42. A broadcast message data packet for transmission, comprising:
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a header; and a data container, the data container of the data packet containing an identifier that identifies multicast messages, the data container also containing addresses which identify predetermined recipients for the broadcast messages identified by the identifier. - View Dependent Claims (43, 44, 45, 46, 47)
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Specification