Kinescope driver apparatus with gamma correction

Kinescope driver apparatus with gamma correction

  • CN 1,112,342 A
  • Filed: 04/27/1995
  • Published: 11/22/1995
  • Est. Priority Date: 04/28/1994
  • Status: Abandoned Application
First Claim
Patent Images

1. , a kind of kinescope driver apparatus is characterized in that,A linear amplifier (32) is used for the negative electrode (K1) that the receiver, video input signal also is added to the vision signal after amplifying picture tube (20);

  • Above-mentioned linear amplifier (32) has sufficiently high real number output impedance so that the image that picture tube (20) is shown provides Gamma correction and trends towards reducing being added to the bandwidth of the vision signal after the above-mentioned amplification on the above-mentioned negative electrode (K1);

    AndA capacitor (60), an output (30) of receiving above-mentioned amplifier (32) are gone up to recover the above-mentioned bandwidth of the vision signal after the above-mentioned amplification;

    AndA kind of circuit arrangement, the capacitance that is used to make above-mentioned capacitor (60 or

         70) are as the function of the brightness of displayed image and change.

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