Cursor control circuit for plural displays for use in a word processing system
Method of displaying a text on a single-line display unit of a word processor
Word processor with alternative formatted and unformatted display modes Patent #: 4686649
ApplicationNo. 07/105490 filed on 10/01/1987
US Classes:345/160, Cursor key345/168, Including keyboard400/63, Including editing or revision system400/83DISPLAYING TYPEWRITER-FORMED REPRESENTATION OF PRINT-LINE
ExaminersPrimary: Brigance, Gerald L.
Attorney, Agent or Firm
International ClassesG06F 3/023 (20060101)
G09G 5/08 (20060101)
Foreign Application Priority Data1983-12-13 JP
AbstractA cursor control on a screen in a message editor which produces a message by using a keyboard and a programmed computer, said cursor control has a cursor memory which stores address of the present cursor location, and X-addresses of last data locations of the present cursor line and immediate upper and the immediate down lines, and a cursor processor for controlling said cursor and said cursor memory are provided. Said cursor processor operates so that when a cursor is instructed to move to another line by depression of up key and/or down key in said keyboard, and the destination location is a null area which has no data on the screen, the cursor is automatically located to the last data location on a destination line by referring to said cursor memory.