G - Physics – 06 – F
Patent
G - Physics
06
F
197/115, 354/229
G06F 3/09 (2006.01) B41J 5/46 (2006.01) B41J 29/36 (2006.01)
Patent
CA 1219680
ABSTRACT In an electronic typewriter, an automatic word correcting system includes a keyboard word erase function key for selectively causing automatic erasure of a word or a series of words. Operation of the word correcting system is based on electronic sensing of "space" or non-print functions and successive recall of consecutively printed characters stored in a print line memory of a control circuit in the typewriter. To erase a previously typed word after other words have been typed, the operator aligns (backspaces) a carrier print point at any print line position occupied by the word. Then a single one touch (depress/release) actuation of the Word Erase Key operates an electronic word erase control that causes the carrier to automatically move to the right to find and then stop the carrier when the subsequent "space" function is electronically sensed in memory. The typewriter is then caused to be automatically operated in word correction mode to progressively move leftwardly erasing consecutive printed characters of the unwanted word in reverse order. The erasing action is caused to automatically stop when the next left "space" or non-print function is electronically sensed in memory and the typewriter may then be operated in normal fashion for character printing in the erased positions.
475951
Scm Corporation
Shapiro Cohen
LandOfFree
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