Switch arrangement

Details Switch arrangement Switch arrangement

2006-09-05

2006-09-05

Lee, Richard (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

C200S310000, C200S406000, C200S512000

Reexamination Certificate

active

07102086

ABSTRACT:
A switch arrangement is disclosed. The arrangement comprises a number of switches arranged on a substrate, each switch having a resiliently deformable conductive dome for making an electrical connection with a corresponding contact on the substrate; and a number of signal lines for connection to a microprocessor for signalling an operation of a switch. The switches are arranged such that operation of any given switch creates a unique electrical connection between two of the signal lines and each of the signal lines is electrically connected to a conductive surface of a respective dome. Also disclosed is a cover for a portable electronic apparatus, having a number of user operable keys. The keys are connectable to a microprocessor in the apparatus via electrical connections made using the conductive domes.

REFERENCES:
patent: 4365120 (1982-12-01), Pounds
patent: 4499343 (1985-02-01), Prioux et al.
patent: 4916275 (1990-04-01), Almond
patent: 5646649 (1997-07-01), Iwata et al.
patent: 1065688 (2001-01-01), None
patent: 1076442 (2001-02-01), None

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