Decoder for 2-dimensional input devices
US6081217A · kind A · utility
0Cited by
2References
3Claims
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Assignee
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Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M11/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A simplified decoder for a decoder for 2-dimensional input devices with less number of pads is disclosed. Two pads are used to represent the addresses in one dimension of the input means in the 2-dimensional input device. Two capacitors are charged through a number of resistors, which number is decided by the number of addresses of said dimension. The time difference in charging the capacitors is measured to determine the address of an actuated input means in said dimension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.