Electromagnetic emission shielding of an image aperture opening for a digital scanner
US5650615A · kind A · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Aug 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for preventing the escape of electromagnetic emissions includes a metallic electromagnetic shield. The electromagnetic shield is placed substantially around an electronic subsystem. The metallic electromagnetic shield has an aperture opening to allow light reflected from an image to be incident upon a photosensor of the electronic subsystem. An aperture electromagnetic shield is placed over the aperture opening to allow light to pass therethrough and to reduce or eliminate electromagnetic emissions from escaping through the aperture opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.