Switch arrangement and a switch matrix structure for a keypad

Details Switch arrangement and a switch matrix structure for a keypad Switch arrangement and a switch matrix structure for a keypad

2007-09-18

2007-09-18

Hofsass, Jeffery (Department: 2612)

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

C341S021000, C341S022000, C341S026000, C340S002290, C340S014600, C340S014690

Reexamination Certificate

active

10408629

ABSTRACT:
A switch arrangement comprises a photoconductor to be illuminated. The switch arrangement also comprises a conductor which is intended to further transmit light escaping from the photoconductor and directed to the conductor by a local contact, wherein the conductor and the photoconductor are further under the control of an external force, arranged to move in relation to each other and to cause the development, loss or change of the contact in such a way that a detectable change is caused in the light guided through it.

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