Printed board and meter unit provided therewith
US7173827B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Oct 19, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/42
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed board has a board, an electrically insulative membrane, formed on the board, and an electrically conductive membrane, formed on the electrically insulative membrane, in its area where a control circuit, including a CPU and etc., is installed. The electrically conductive membrane is electrically connected with ground patterns of a wiring pattern. Accordingly, ground connections at the control circuit are sufficiently performed. Therefore, even though ground connections in an area other than the control circuit are not sufficiently performed, a magnetic noise is prevented from being generated in a loop-shaped electricity supply line passing through a CPU and etc. Consequently, noises in printed board can be effectively reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.