Printed board and meter unit provided therewith

Details Printed board and meter unit provided therewith Printed board and meter unit provided therewith

2007-02-06

2007-02-06

Enad, Elvin (Department: 2841)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S752000, C361S816000, C361S818000

Reexamination Certificate

active

10721295

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.

REFERENCES:
patent: 4801489 (1989-01-01), Nakagawa et al.
patent: 5043526 (1991-08-01), Nakagawa et al.
patent: 6185105 (2001-02-01), Inoguchi
patent: 6239982 (2001-05-01), Bozzer et al.
patent: 6333697 (2001-12-01), Kumazawa et al.
patent: 6812942 (2004-11-01), Ribak
patent: 2003/0112617 (2003-06-01), Ueno et al.
patent: 2004/0145876 (2004-07-01), Romahn
patent: 2 265 760 (1993-10-01), None
patent: A-S63-015497 (1988-01-01), None
Office Action and its translation from Korean Patent Office dated Sep. 22, 2005.

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