System and method for starting up plural electronic devices in an orderly manner
US7278036B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Nov 23, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/25368
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for starting up plural electronic devices includes an external controller, a power source, and four backboards. The external controller includes four output ends. Each backboard includes a power switch connected to a respective electronic device and to the power source, an onboard controller connected to the respective power switch, and first and second connectors each having four ends. Fourth, first, second and third ends of the first connector are respectively connected to first, second, third, fourth ends of the second connector. The onboard controller includes four input ends respectively connected to the four ends of the first connector, and an output end connected to the power switch. Signals output from the external controller are received as four different input signals at the four onboard controllers, the input signals corresponding to four different time delays for the onboard controllers to output signals to start up the four electronic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.