Pattern recognition system using switched capacitors
US4483017A · kind A · utility
95Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1981 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Jul 31, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pattern recognition system includes a filter bank, coupled via rectifying elements to integrators which are coupled via different weighting elements to the summing nodes of a summing amplifier. The filter bank, integrators, and weighting elements include switched capacitors enabling the manufacture of the filters, rectifiers, integrators and weighting elements on a monolithic integrated circuit chip. The frequencies at which the capacitors are switched are programmable enabling the system to be easily "retuned".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.