Electrical device having a power supply unit, a transformer power supply unit and a control card for an electrical device
US6650030B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jan 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an electrical device for controlling functional units and processing data, for connection to an external data network communicating signals, and for switching between quiescent and active states, the improvement includes a control unit for controlling the functional units and having lines connected to the network for receiving signals starting data processing at the device, a power supply unit for supplying the units with energy, the supply unit primary side to be connected to a voltage supply and connected to the control unit, an electrical switch, connected to and switching the supply unit, entering into an open position and disconnecting the primary side from the voltage supply network in the quiescent state, and entering into a closed position dependent upon the power received from the ringing signal in the active state, and the switch remaining in one of the positions based upon the energy from the supply unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.