G - Physics – 06 – F
Patent
G - Physics
06
F
340/180, 354/215
G06F 7/38 (2006.01) G06F 3/02 (2006.01) G06F 3/023 (2006.01) H01H 13/702 (2006.01) H03M 11/02 (2006.01) H03M 11/18 (2006.01)
Patent
CA 1097419
Abstract of the Disclosure A calculator system having a transparent keyboard includes an apparatus for electronically labeling the keyboard by displaying alphanumeric symbols through the keyboard. The apparatus comprises a keyboard selection device and a liquid crystal keyboard display device having a predetermined number of display planes each containing preselected symbols. The keyboard selection device operates both as a selection device and as an annunciator- feedback device, for selecting the symbols or legends of a given plane to label or configure the keyboard, and for feeding back to a user of the system the status of the selection device when it is activated. An alternative embodiment of the invention utilizes light-emitting diodes (LED's) for labeling the keyboard.
284084
Hewlett-Packard Company
Sim & Mcburney
LandOfFree
Calculator apparatus with electronically alterable key symbols does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Calculator apparatus with electronically alterable key symbols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculator apparatus with electronically alterable key symbols will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-238896