Wearable keyboard apparatus

Details Wearable keyboard apparatus Wearable keyboard apparatus

2007-02-13

2007-02-13

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C434S112000

Reexamination Certificate

active

09751076

ABSTRACT:
A keyboard apparatus includes a fabric and switch units coupled to the fabric. Each switch unit includes a capsule containing an electrically responsive liquid, wherein the electrically responsive liquid causes the capsule to increase in rigidity in response to application of an electric field to the electrically responsive liquid. Each switch unit also includes one or more switches coupled to the capsule, wherein a selected pressure applied to the capsule activates or more of the switches underneath the capsule. The keyboard apparatus also contains electrical conducting lines connected to the switch units.

REFERENCES:
patent: 5222895 (1993-06-01), Fricke
patent: 5416310 (1995-05-01), Little
patent: 5496174 (1996-03-01), Garner
patent: 5721566 (1998-02-01), Rosenberg et al.
patent: 6195085 (2001-02-01), Becker et al.
patent: 6271828 (2001-08-01), Rosenberg et al.
patent: 6310604 (2001-10-01), Furusho et al.

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