Preamplifier having integrated circuitry
US4152662A · kind A · utility
2Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1978 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Feb 1, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a preamplifier having integrated circuitry, the improvement where the active elements of the first stage amplification of the preamplifier and the resistor which establishes the current flowing through these active elements are mounted on the outside of the integrated circuitry and the connecting terminals for the active elements and resistor are disposed with the remaining preamplifier components inside the integrated circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.