Method and system for updating device identification and status information after a local bus reset within a home audio/video network
US6160796A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Jan 6, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Jan 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/2807
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for updating device identification and status information in response to a local bus reset within a home 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 communication architecture used is the home audio/visual initiative (HAVI) format. 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. Namely, 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 devices of the network are informed of the current status of the network after a local bus reset caused when a device is inserted into the network or when a device is removed from the network. After a reset, a new GUID list is generated by a driver and passed to a high …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.