Raster distortion correction circuit

Details Raster distortion correction circuit Raster distortion correction circuit

1989-06-07

1990-01-23

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358 67, 358 69, 315 10, H01J 2970, H01J 2976

Patent

active

048960829

ABSTRACT:
In a circuit arrangement for correcting a raster distortion in a cathode ray tube, at least one vertical perforated, index strip of a sensor is arranged at a corresponding margin of a picture producing screen of the cathode ray tube. An index signal that is indicative when the electron beam passes the index strip is generated. The index signal is coupled through an enclosure of the cathode ray tube in a nonconductive manner to a second electrode that is located outside the enclosure. A comparator circuit is used for comparing the index signal with a line deflection representative signal to generate a control signal that corrects the raster distortion.

REFERENCES:
patent: 4159484 (1979-06-01), Strathman
patent: 4352047 (1982-09-01), Imayasu et al.
patent: 4369396 (1983-06-01), Judd
patent: 4593308 (1986-06-01), Kemplin
Japanese Pat. Appl. No. SHO 61-136381-Eicho Shima, "Screen Distortion Correcting Device".
German Pat. Appl. No. DE-3136029A1-Nersthemimer et al., "Circuit Configuration for Reproducing A Television Picture With Lines Alternatingly In the Opposite Direction".
Japanese Patent Appl. No. 62-122463-T. Matyumoto, "Cathode Ray Tube".
U.K. Pat. Appl. No. GB2102258A-D. Denham, "Closed-Loop Correction System For CRT-type Display".

Affiliated with

Also associated with

Rating

Raster distortion correction 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 Raster distortion correction circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raster distortion correction circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-646887