Apparatus and method for automatically identifying between USB and PS/2 interface
US6886052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2003 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Jan 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An automatic interface identification technique for an apparatus capable of supporting both USB and PS/2 interfaces comprises connecting a detector to first and second ports provided for the apparatus connected to a host computer through a USB or PS/2 interface. The detector has an interface detect function including a logic confirming mechanism and an interface identifying algorithm and a mode select function receiving first and second control signals such that the logic confirming mechanism is connected to the first and second ports by the interface detect function to detect the logic states of the first and second ports in association with the interface identifying algorithm to thereby correctly identify a USB or PS/2 interface is connected and to further determine USB or PS/2 mechanism in response to signal transmissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.