Digital gain adjustment

Details Digital gain adjustment Digital gain adjustment

H - Electricity

04

N

355/13

H04N 17/04 (2006.01)

Patent

CA 1261973

DIGITAL GAIN ADJUSTMENT ABSTRACT OF THE DISCLOSURE A cathode ray tube (CRT)/deflection coil assembly is provided which includes a signature resis- tor for indicating the deflection sensitivity of the deflection coil. An amplifier circuit with an adjust- able gain supplies current to the deflection coil. A gain adjustment circuit measures the value of the signature resistor and provides a signal to the ampli- fier which varies the gain of the amplifier to compen- sate for variations in the deflection sensitivity of different deflection coils.

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