Cover plate for a mobile device having a push-through dial...

Telecommunications – Radiotelephone system – Auxiliary data signaling

Reexamination Certificate

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Details

C455S550100, C455S557000, C455S566000, C455S575100, C379S433010, C379S433040, C370S368000

Reexamination Certificate

active

07627335

ABSTRACT:
A mobile electronic device having a keyboard has a cover plate acting as a dial keypad. The keypad has a push-through, hinge-spring design that activates only one of two keyboard keys underlying a dial key and allows backlighting transmissivity. A translucent material can be used to allow the keyboard key backlighting to be coupled through to a top dial key. The keypad creates an aesthetically balanced dial keypad arrangement over a QWERTY keyboard. A preferable mechanical implementation allows backlighting and has an offset contact and spring design to activate one of the two underlying keys. This activation simplifies the software implementation for executing the dial number since the signal is coming from one address rather than having to make a determination of whether it is coming from one or two addresses. Moreover, the resulting dial key press has a standard single click feel.

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patent: 2001/0003539 (2001-06-01), Hahm et al.
patent: 2002/0080122 (2002-06-01), Ostergard et al.
patent: 2003/0017839 (2003-01-01), Mager
patent: 2003/0052964 (2003-03-01), Priestman et al.
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Canadian Intellectual Property Office, Feb. 7, 2008 Office Action, Canadian Patent Application No. 2,473,331.
Canadian Intellectual Property Office Office Action of Jun. 18, 2008 for corresponding Canadian Application No. 2,473,331.

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