Operation direction judging method for operation key in direction detecting switch
US7936335B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2025/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a directionality judging method for an operation key in a direction detecting switch, capable of detecting a key operation in any direction; and superior as the cursor can be freely moved by one operation key.The present invention is a directionality judging method for an operation key comprising; wherein an initial value is set whose unit is a minimum division region as a criterion for specifying the operation direction of the operation key from the input signal, and a position of the operation key at a time when it is pressed is detected from the input signal and the operation direction is stored in a memory; and next, an effective operation range comprising the plurality of regions of minimum division regions including the operation direction of the operation key is set in a controller; an operation of the operation key whose state is in the effective operation range is judged to be the same direction; and for an operation at a position at which the operation key deviates from the effective operation range, a new operation direction at the deviating position and an effective operation range are set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.