Filtering device using the transfer of electrical charges into a semiconductor
US4356463A · kind A · utility
2Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1979 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Nov 21, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D48/36
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Two analog filters of the second order are arranged in series with a transverse charge transfer filter upstream and downstream of the latter. The analog filters are switched capacitor filters having an amplifier and a network of capacitors and MOS transistors. The filtering device is entirely integrated onto the same semiconductor substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.