Signal processing circuit for a pointing device
US5349370A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Oct 6, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0338
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a signal processing circuit for a pointing device comprising first, second, third, and fourth pressure detection elements corresponding to the movement of a cursor in an X-axis plus direction, an X-axis minus direction, a Y-axis plus direction, and a Y-axis minus direction, respectively, a first processing circuit processes a first pressure detection signal from the first pressure detection element to produce a first move signal representative of a cursor moving value in the X-axis plus direction. A second processing circuit processes a second pressure detection signal from the second pressure detection element to produce a second move signal representative of a cursor moving value in the X-axis minus direction. A third processing circuit processes a third pressure detection signal from the third pressure detection element to produce a third move signal representative of a cursor moving value in the Y-axis plus direction. A fourth processing circuit processes a fourth pressure detection signal from the fourth pressure detection element to produce a fourth move signal representative of a cursor moving value in the Y-axis minus direction. A first calculation circuit calculates a c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.