06038625 is referenced by 160 patents and cites 12 patents.

A method and system for providing a device identification mechanism within a consumer electronics based audio/video network. Several consumer electronics products, e.g., television, VCR, tuner, set-top box (e.g., intelligent receiver/decoder, IRD), DVTRs, PCs, DVD players (digital video disk), etc., can be coupled within the network to communicate together via a standard bus (e.g., IEEE 1394 serial communication bus). In one embodiment, the HAVI network offers unique advantages consumer electronic vendors because the architecture offers for the home network many of the advantages of existing computer system networks. Specifically, interconnected devices can share resources and provide open, well defined APIs that allow ease of development for third party developers. The present invention provides a mechanism whereby a global unique identifier (GUID) is associated with each device of the HAVI network. A low level driver constructs a GUID list of each device on the HAVI network. The order of the GUID entries in the GUID list (e.g., the index) matches the physical identifiers assigned to the devices by the 1394 serial bus. Although the physical identifiers can change on bus reset, the GUID values are constant and are used for device communication. Speed map and topology map information is maintained based on the physical identifier information and therefore translations between GUIDs and physical identifiers are efficiently performed by the present invention when referencing speed map and topology information for an application.

Title
Method and system for providing a device identification mechanism within a consumer audio/video network
Application Number
9/3111
Publication Number
6038625
Application Date
January 6, 1998
Publication Date
March 14, 2000
Inventor
Feng
Milpitas
CA, US
Hiroshi Ogino
Sunnyvale
CA, US
Agent
Wagner Murabito & Hao
Assignee
Sony Electronics
NJ, US
Sony Corporation of Japan
JP
IPC
G06F 13/00
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