Patent ID: 6630925
Filing Date: 2003-10-07
Classification: H01H,H04M

Abstract:
A double-sided keyboard for entering information in an electronic device, comprising:a circuit board having a first side and an opposing second side with electrically conductive segments on the first side; a first keymat disposed adjacent to the first side of the circuit board, the first keymat having a plurality of first keys; a second keymat disposed adjacent to the second side of the circuit board, the second keymat having a plurality of second keys; and an activation mat located between the first keymat and the circuit board, the activation mat having a plurality of electrically conductive sections facing the electrically conductive segments on the first side of the circuit board, so as to allow the first and second keymats to activate the circuit board by pressing at least one of the first and second keys, thereby causing at least one of the electrically conductive sections facing the electrically conductive segments on the first side of the circuit board to make electrical contact only with part of the electrically conductive segments on the first side of the circuit board for providing a signal indicative of the information for use in the electronic device.