Keypads with multi-function keys

Details Keypads with multi-function keys Keypads with multi-function keys

2007-01-16

2007-01-16

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

C200S600000

Reexamination Certificate

active

10513904

ABSTRACT:
A keypad has keys (12) protruding through a housing (18) with at least one at-a-distance sensor (20) located approximately equidistant between each adjacent set of keys (12). Each key (12) has a tactile feedback element (32) located below and a primary graphic (10) displayed above. Graphics identifying additional functionality (14) are disposed off-center to primary graphic (10). Locator nubs (16) are located approximately equidistant between each adjacent set of keys (12).

REFERENCES:
patent: 5329278 (1994-07-01), Dombroski
patent: 5528235 (1996-06-01), Lin et al.
patent: 5612690 (1997-03-01), Levy et al.
patent: 5822703 (1998-10-01), Araki
patent: 5841374 (1998-11-01), Abraham
patent: 5852414 (1998-12-01), Yu et al.
patent: 5973621 (1999-10-01), Levy et al.
patent: 6259044 (2001-07-01), Paratore et al.
patent: 6528741 (2003-03-01), Walker
patent: 6541715 (2003-04-01), Swanson
patent: 2002/0014395 (2002-02-01), Walker
patent: WO 02/10896 (2001-07-01), None
patent: WO 01/95358 (2001-12-01), None

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