CRT display anti-burn circuit

Details CRT display anti-burn circuit CRT display anti-burn circuit

1977-05-23

1978-11-28

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358220, H01J 2970, H01J 2972

Patent

active

041277961

ABSTRACT:
Damage to the phosphorescent screen of a cathode ray tube (CRT) by an electron beam is minimized by preventing the display of a stationary image on the screen. This is accomplished by superimposing or adding to each of the normal electron beam deflecting voltages an additional triangular offset waveform, with the combined effect of the offset waveforms being to constantly move the entire electron scan pattern over an infrequently recurring path at a slow enough rate to be imperceptible to the viewer.

REFERENCES:
patent: 2974254 (1961-03-01), Fitzmaurice et al.
patent: 3440480 (1969-04-01), Henderson
patent: 3484647 (1969-12-01), McGuinness

Affiliated with

Also associated with

Rating

CRT display anti-burn circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-979405