Method for automating updating of configuration/status information in master control switcher
US6588018B1 · kind B1 · utility
3Cited by
11References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/26258
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automation protocol subscription service has a new SUBSCRIBE command with subscription bits that is sent from an automation controller to a master control switcher to indicate to the master control switcher to which items of configuration/status the automation controller is subscribing. In return when one of the subscribed-to items changes, the master control switcher returns a new SUBSCRIPTION command that indicates the change to the automation controller. In this way the knowledge of the configuration/status of the master controller is maintained at the automation controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.