Input device with a reduced number of keys

Details Input device with a reduced number of keys Input device with a reduced number of keys

1981-12-24

1984-11-06

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340365VL, G09G 100

Patent

active

044815085

ABSTRACT:
An input device for use in an electronic apparatus has keys for introduction of information and a display for displaying information which may be introduced by the keys. A display control displays sequentially a predetermined number of characters such as alphabetic information numerical digits or "kana" information. A key corresponds to each displayed character and an input control receives an input information the corresponding character displayed on the display when the respective one of the keys is actuated, and supplies the information to an internal circuit of the apparatus. The device provides input of varied information with a reduced number of input keys.

REFERENCES:
patent: 3707715 (1972-12-01), Perotto
patent: 3757037 (1973-09-01), Bialek
patent: 3879722 (1975-04-01), Knowlton
patent: 3956745 (1976-05-01), Ellis
patent: 4193119 (1980-03-01), Arase et al.
patent: 4280121 (1981-07-01), Crask
patent: 4303916 (1981-12-01), Hakaridani et al.
patent: 4313108 (1982-01-01), Yoshida

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