Title: Cursor find system for the display of a word processing system

Abstract: In a keyboard entry word processing system, text is stored in a recirculating refresh memory along with a carriage return code at the end of each line. The text is displayed on a CRT screen. A cursor symbol, also displayed on the screen, may be moved by keyboard control to designate a particular character position on the screen where editing is to occur. When the cursor is within the field of displayed text, characters may be edited at the location in memory corresponding to the location of the cursor on the screen. When the cursor is outside the field of displayed text, the cursor is first "found" by altering the refresh memory to provide a new memory location corresponding to the cursor location, and then editing is performed at the new memory location.

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Inventors: de Cavaignac, Patrick P. (Parsippany, NJ, US)
Dickinson, Peter D. (Monte Sereno, CA, US)

Application Number: 464990
Filing Date: 1974-04-29
Publication_date: 1976-08-10
Assignee: Vydec, Inc. (Whippany, NJ)
Primary Class(es): 345/160 345/168, 715/862
Other Classes:
US Patent Ref:

3466645	Sep, 1969	Granberg et al.	340/324.
3559208	Jan, 1971	DiGuigno et al.	340/324.

Other Refs:
Primary Examiner: Curtis, Marshall M.
Assistant Examiner:
Attorney: Fox; Stephen P.