Foldable alphanumeric keypad for mobile phones

Details Foldable alphanumeric keypad for mobile phones Foldable alphanumeric keypad for mobile phones

2005-04-05

2005-04-05

Nguyen, Lee (Department: 2682)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S575100, C455S066100, C455S550100, C455S351000, C345S169000

Reexamination Certificate

active

06876876

ABSTRACT:
The invention relates to an alphanumeric keypad (1), especially foldable alphanumeric keypad, which is stored on the back of a mobile phone. The alphanumeric keypad (1) (membrane keys, pushbuttons and/or touchscreen display pages) is stored in such a way that it closely follows the shape of the mobile phone. When needed, this keypad is folded out (3) and functionally connected to the front keypad by means of a switching contact. Now, the message can be quickly typed in and sent. After the message has been transmitted, the keypad is folded back and the connection disabled. The touchscreen display pages can be used for interactive communication (keypad) or for displaying Internet pages.

REFERENCES:
patent: 5719799 (1998-02-01), Isashi
patent: D398307 (1998-09-01), Collins
patent: 5991644 (1999-11-01), Ogawa
patent: 5995025 (1999-11-01), Sternglass et al.
patent: 6262785 (2001-07-01), Kim
patent: 6327482 (2001-12-01), Miyashita
patent: 6510325 (2003-01-01), Mack et al.
patent: 6661404 (2003-12-01), Sirola et al.
patent: 20020119685 (2002-08-01), Gardenfors et al.

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