Apparatus and method for sensing the degree and touch strength of a human body on a sensor
US7006078B2 · kind B2 · utility
86Cited by
48References
8Claims
0Family size
Assignee
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Key dates
| Filing date | May 7, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Oct 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improvement in sensor for detecting contact with a human resistive element is disclosed. This design uses additional components to avoid discharging capacitors through the human resistive element, thereby sparing the user the uncomfortable sensation associated therewith and increasing the power requirements of the device. In addition, designs are utilized which multiple sensing points are multiplexed to achieve greater resolution while with a lower pin count at the signal processing chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.