Multibeam graphic display system utilizing bit mapping memory

Details Multibeam graphic display system utilizing bit mapping memory Multibeam graphic display system utilizing bit mapping memory

1983-09-30

1986-12-30

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

340720, 340744, G06K 1520, H01J 3116

Patent

active

046331425

ABSTRACT:
A high definition bit mapped page display system for graphics and text utilizing multiple beams in a CRT is disclosed. Information for the several lines which are written simultaneously is made available in parallel. The invention is described in terms of a character set and text generation, but the same principles apply to any other graphic or bit map and to storage in ROMs or loadable RAMs. Eah beam of a multiple CRT tube is biased to generate a portion of a character or graphic as it scans across the tube. It takes 12 lines to scan a character with a N-beam tube, 12 over N character scans are therefore required. With the same scanning speed as with a single beam, this factor can be used to increase definition (i.e. number of lines). The invention utilizes CRTs with shaped electron beams, a bit map for storing bits utilized for generating bit patterns which are used to control the shaped electron beams.

REFERENCES:
patent: 2862144 (1958-11-01), McNaney
patent: 4338597 (1982-07-01), Steiner et al.
patent: 4353061 (1982-10-01), Beck
patent: 4356482 (1982-10-01), Oguchi
patent: 4560981 (1981-12-01), Jackson et al.

Affiliated with

Also associated with

Rating

Multibeam graphic display system utilizing bit mapping memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multibeam graphic display system utilizing bit mapping memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multibeam graphic display system utilizing bit mapping memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1549643