Apparatus for electrically switching between peripheral devices
US5258655A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1991 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Oct 23, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6242
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The apparatus allows the connection of two peripherals to a host device through one port and switching between them. The apparatus includes a sensor for sensing a data signal from the second peripheral device and a switch responsive to the sensor. The switch in a default, first state connects the first peripheral device to the host device and in a second state disconnects the first peripheral device therefrom. If a second peripheral device is connected to the apparatus, the sensor senses a data signal from the device and communicates this sensing to the switch. The switch responds by disconnecting the first device from the host device, leaving the second device solely connected to the host device. If the second peripheral device is disconnected from the apparatus, the switch reconnects the first peripheral device to the host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.