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AssigneesSony Corporation, Sony Electronics Inc.
InventorsDavid V. James, Hisato Shima, Bruce Alan Fairman
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Within the routing method and apparatus of the present invention, a router is coupled to multiple buses, each of the buses having one or more nodes. A node on a first bus structure sending a communication to a node on a second bus structure includes an address value within the communication addressed into the address space of the router. When the packet is received, the router then preferably uses a routing value within the address value to determine the bus number and node number of the target node. The router then uses this bus number and node number to remap the address value to the target node. This remapped address value is then included within the packet and transmitted on the appropriate bus structure directed to the appropriate node. In an alternate embodiment, the address value in a packet received by the router includes a table index value and a direct offset value. The table index value provides an index value into a table within the router and corresponds to a location in the table which includes a corresponding expanded bit value. The corresponding expanded bit value and the direct offset value are used by the router to remap the address value to the target node. This remapped address value is then included within the packet and transmitted on the appropriate bus structure directed to the appropriate node.
A method of routing communications from a first node on a first bus to a second node on a second bus comprising:
A direct mapping IEEE 1394 bus packet for communications transmitted from a first node on a first bus to a second node on a second bus, the bus packet including an address value having a bus number and a node number, together forming an address of a routing device which is coupled to both the first and second buses, and a routing value used to determine an address of the second node.
A routing device configured for coupling between a first bus and a second bus for routing communications from a first node on the first bus to a second node on the second bus comprising:
A routing device configured to couple between a first bus and a second bus to route communications from a first node on the first bus to a second node on the second bus comprising:
A network of devices comprising:
Dependencies are inferred from the claim text.