Hand-held, freestanding, double-sided electronic keyboard

Details Hand-held, freestanding, double-sided electronic keyboard Hand-held, freestanding, double-sided electronic keyboard

2005-09-06

2005-09-06

Hirshfeld, Andrew H. (Department: 2854)

Typewriting machines

Key-board or key lever-actuating mechanism

Including means generating a signal for type selecting or...

C400S472000, C400S480000, C200S0050EA, C200S0050EA

Reexamination Certificate

active

06939066

ABSTRACT:
This invention is a keyboard apparatus with front and back key functionality. The body of the apparatus is held in the hands, supported by the palms. This leaves both of the thumbs and all of the fingers free to operate the key functionality, while the apparatus is being held. Key functionality installed on the back is operated by the fingers; key functionality installed on the front is operated by the thumbs. When properly configured, the user may perform full touch-typing techniques while holding the apparatus. This configuration may reduce stress on the hands. Modifier keys are shaped, grouped and positioned so they may be operated by one thumb. Algorithms provide keyboard lock function and aid the user in locating the home row of keys needed for touch-typing.

REFERENCES:
patent: 5410333 (1995-04-01), Conway
patent: 6070068 (2000-05-01), Sudo
patent: 6288709 (2001-09-01), Willner et al.
patent: 6297752 (2001-10-01), Ni
patent: 6370018 (2002-04-01), Miller et al.
patent: 6512511 (2003-01-01), Willner et al.
patent: 6547463 (2003-04-01), Loo
patent: 6580421 (2003-06-01), Leman
patent: 6738770 (2004-05-01), Gorman
patent: 6747635 (2004-06-01), Ossia

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