Mixed pitch display

Details Mixed pitch display Mixed pitch display

1981-06-16

1984-05-08

Smith, Jerry

Boots, shoes, and leggings

364521, 340720, 340723, 340750, G06F 1502, G06F 314

Patent

active

044478887

ABSTRACT:
Operator keystrokes are processed in a text processor system to put characters and symbols on a fixed pitch display screen without limitation as to other size characters or symbols on the screen. Keystroke data is processed under the control of programs stored in a random access memory. For a mixed pitch display, the random access memory of the system is structured to include a text storage buffer and a display control block both interconnected to an applications program and a display access method program. Data is stored in the text storage buffer in an unformatted configuration in a mixed pitch arrangement and the programs evaluate the data to display characters and symbols with correct character pitch. The programs also draw a scale line on the screen to provide character information to the operator. After running the display access method program in accordance with application program commands, a refresh buffer provides display signals to visually present by means of the display screen characters at an identified position in a mixed pitch format.

REFERENCES:
patent: Re30679 (1981-07-01), Evans et al.
patent: 3281822 (1966-10-01), Evans
patent: 3618032 (1971-11-01), Goldsberry
patent: 3648271 (1972-03-01), McConnell et al.
patent: 3659283 (1972-04-01), Ophir
patent: 3668685 (1972-06-01), Horvath
patent: 3896428 (1975-07-01), Williams
patent: 3999168 (1976-12-01), Findley et al.
patent: 4107665 (1978-08-01), Mayer et al.
patent: 4193071 (1980-03-01), Hasegawa et al.
patent: 4254409 (1981-03-01), Busby
patent: 4254416 (1981-03-01), Lelke
patent: 4283724 (1981-08-01), Edwards
patent: 4338673 (1982-07-01), Brown
patent: 4342096 (1982-07-01), McDevitt
patent: 4357604 (1982-11-01), Imazeki et al.
patent: 4373194 (1983-02-01), Demke et al.
`The Raycomp-100-A Video Page Composition Terminal`, by Bordosna et al., Electronic Progress, vol. 18, No. 2, pp. 15-22, 1976.
"Varibable-Size Character Generator", IBM Tech. Disc. Bull., vol. 24, No. 4, Sep. 1981, pp. 2210-2211 by R. Moreau.
"Simple Computer and CRT Display", by G. Y. Cho, Control Engineering, Apr. 1964, p. 97.

Affiliated with

Also associated with

Rating

Mixed pitch display does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1606753