Coordinates input apparatus
US5726686A · kind A · utility
16Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1993 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0433
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a coordinates input apparatus in which a vibration input from a vibration pen having a piezoelectric transducer is detected by a plurality of vibration sensors attached to a vibration propagating plates such as an input tablet and the coordinates of this pen on the plate are detected. The tip of the vibration input pen is made of a material of a resin of the polyamideimide system such as thermoplastic polyamideimide or aromatic polyamideimide. With this material, a desired image can be smoothly input to the input tablet without scratching the glass surface thereof and the accurate coordinates can be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.