Quasi feedback horizontal scan linearization for cathode ray...

H - Electricity – 04 – N

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H04N 3/16 (2006.01) H03K 4/62 (2006.01) H04N 3/233 (2006.01) H04N 3/30 (2006.01)

Patent

CA 1155557

ID-2712 QUASI FEEDBACK HORIZONTAL SCAN LINEARIZATION FOR CATHODE RAY TUBES ABSTRACT OF THE DISCLOSURE A horizontal scan linearization circuit generates a linear ramp voltage during the active picture scan interval, which is compared to the non-linear ramp current of a cathode ray tube yoke circuit. The difference signal is fed back to the yoke circuit via a damper diode and is selectively added to the non-linear yoke current to correct the non-linearity.

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