Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2007-09-04
2007-09-04
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S179000, C345S156000, C345S168000, C345S169000
Reexamination Certificate
active
11381566
ABSTRACT:
An operating element can be used to operate or control a household appliance, for example a cook top heating element. A seven-segment display is arranged beneath a cover in the region of a contact surface. A light source and a light receiver are arranged inside respectively of four LED elements of the seven-segment display in two channel-type openings oriented towards the contact surface. The insertion of the light source and receiver into the openings enables the contact surface to the positioned directly above the display and shields the light receiver from scattered light. Placement of a finger on the contact surface results in light from the light source to be reflected and detected by the light receiver, and thus effect control of the household appliance.
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Alston & Bird LLP
Dharia Prabodh
E.G.O. Elektro-Geraetebau GmbH
Shalwala Bipin
LandOfFree
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