Word processor with variable pitch line scrolling

Details Word processor with variable pitch line scrolling Word processor with variable pitch line scrolling

G - Physics

09

G

375/12

G09G 1/00 (2006.01) G09G 5/22 (2006.01)

Patent

CA 1183975

ABSTRACT OF THE DISCLOSURE An information processing apparatus includes a RAM for storing character information and line pitch information corresponding thereto; a CRT for simultaneously displaying character information having different line pitches; a font ROM supplied with the character information from the RAM and which supplies a corresponding video signal to the CRT; and a line pitch switching circuit: for supplying a signal to the font ROM in response to the line pitch information stored in the RAM so that the display means displays the character information with a correct line pitch, A method of vertically scrolling the character information displayed by the CRT includes the steps of storing a first portion of the character information with corresponding line pitch information in the RAM; computing a variable termed the sum of the constant from the line pitch information for a second portion of the character information to be displayed on the CRT; adjusting the line pitch of the last line of the second portion of the character information, if necessary, so that the sum of the constant is equal to a fixed value; shifting the character information in the RAM to store the second portion of the character information therein; and then substituting the adjusted line pitch information for the second portion of the character information during a vertical blanking period after a start signal from the apparatus is detected.

392165

Affiliated with

Also associated with

Rating

Word processor with variable pitch line scrolling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Word processor with variable pitch line scrolling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Word processor with variable pitch line scrolling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1192103