Touch panel input apparatus

Details Touch panel input apparatus Touch panel input apparatus

1991-03-28

1993-02-23

Harkcom, Gary V.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340706, 178 18, G06F 15606

Patent

active

051897326

ABSTRACT:
A touch panel input apparatus comprises a memory storing data for correcting a key position according to the distance between a touch panel and a cathode ray tube (CRT) display and also according to the surface shape of the display screen. In response to the application of a touch input, a key code corresponding to display information is read out from the memory to display an effective key input area. The key position correction data is determined depending on an enlarged effective range of the touch key input and also depending on the parallax of the user viewing the display screen.

REFERENCES:
patent: 4616217 (1986-10-01), Nesbitt et al.
patent: 4672683 (1987-06-01), Matsueda
patent: 4698625 (1987-10-01), McCaskill et al.
patent: 4821029 (1989-04-01), Logan et al.

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