Input device with a reduced number of keys
First Claim
1. A compact data input and display device for an electronic apparatus, said device comprising:
- a character display field having a predetermined number of character display positions;
character selection means for selecting an alphanumeric character type and for displaying a plurality of characters of the selected type in said representative positions of said display field;
a plurality of input keys equal in number to said predetermined number and corresponding respectively to said positions of said display field;
means responsive to actuation of any of said input keys for inputting to the electronic apparatus the character displayed in the position of said display field corresponding to the actuated input key; and
display mode selecting means for causing said display field to selectively display exlusively either said selective type of characters or data previously input to said electronic apparatus.
1 Assignment
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Accused Products
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.
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Citations
5 Claims
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1. A compact data input and display device for an electronic apparatus, said device comprising:
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a character display field having a predetermined number of character display positions; character selection means for selecting an alphanumeric character type and for displaying a plurality of characters of the selected type in said representative positions of said display field; a plurality of input keys equal in number to said predetermined number and corresponding respectively to said positions of said display field; means responsive to actuation of any of said input keys for inputting to the electronic apparatus the character displayed in the position of said display field corresponding to the actuated input key; and display mode selecting means for causing said display field to selectively display exlusively either said selective type of characters or data previously input to said electronic apparatus. - View Dependent Claims (2, 3, 4, 5)
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Specification