Boots – shoes – and leggings
Patent
1983-01-21
1986-01-28
Malzahn, David H.
Boots, shoes, and leggings
G06F 3027
Patent
active
045675678
ABSTRACT:
The number of keys on a keyboard are reduced by employing the decimal point key as a control key when stroked the second time in the entry of a decimal number word. This eliminates the need for a key standard in the computer arts which is either designated as an "enter" key or as an "=" key depending upon the computer arithmetic process. It thereby becomes possible to use only twelve keys on a keyboard to control a modern computer with the order of 133 built-in programs or execution commands. This is done by providing in addition to ten decimal keys 0 to 9 and the decimal point key one additional control or execute key which initiates a two or more sequential key program step select mode in which any of the twelve keys are then stroked to designate a particular execution command. An accompanying graphic display of the various execution choices available makes the keyboard usable without necessity of frequent consultation of an instruction manual.
REFERENCES:
patent: 3597600 (1969-05-01), Herendeen
patent: 3762637 (1973-10-01), Hernandez
patent: 3892958 (1975-07-01), Tung
patent: 4178633 (1979-12-01), Olander, Jr. et al.
patent: 4247905 (1981-01-01), Yoshida et al.
patent: 4302816 (1981-11-01), Yamamoto
Brown Laurence R.
Malzahn David H.
The Laitram Corporation
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