Printed-circuit board, coaxial cable, and electronic device
US6717494B2 · kind B2 · utility
20Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10356
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Occurrence of EMI is reduced without a sharp increase of the manufacturing cost by suppressing a common mode current stably. There is provided a disclosed printed-circuit board being adapted such that a width of an outer edge section of a T-shaped pattern is widened so as to surround a recessed section with a frame-shaped additional electric conductor by electrically connecting the frame-shaped additional electric conductor with the T-shaped pattern making up a ground pattern so as to close the recessed section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.