Electrical signal filter and method for manufacture of electrical signal filter internal circuit board
US5150087A · kind A · utility
30Cited by
3References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 29, 1990 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Nov 29, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrical signal filter in which circuit provided with filter circuits are inserted into a cylinder-shaped shield case, has a first cavity portion having an inner case. The side of one end of the inner case has the circuit boards inserted, and the side of the other end thereof is provided with one of an input side connector and an output side connector. The electrical signal filter also has a second cavity portion having a second shield case having an outer case. The side of one end of the second shield case is provided with one of an output side connector and an input side connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.