Signal processing circuit and method with pressure-sensitive sensor array
US10365173B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Nov 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A signal processing circuit with a pressure-sensitive sensor array includes a pressure-sensitive sensor array with M rows and N columns, and an excitation source adapted for outputting positive and negative excitation voltages, wherein: the positive output terminals of the sensing units at a same row of the pressure-sensitive sensor array are connected with each other and act as an output of the row; the negative output terminals of the sensing units at a same column of the pressure-sensitive sensor array are connected with each other and act as an output of the column; so that the whole pressure-sensitive sensor array has a positive excitation input end, a negative excitation input end, M row output signals and N column output signals. The signal processing circuit and method are capable of significantly decreasing an amount of output signal wires of the sensor, reducing connection areas, and improving reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.