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Patent US 4135201A: Difference between revisions
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''A switching element is placed across a filter and controllably activated to dynamically change the response of the filter. Specifically, additional damping is switched into the "Bell" characteristic, interjected during blanking and removed after the beginning of white lead-in, to dynamically change the response of the band-pass "Bell" filter in a Sequential Color and Memory Television System.'' | ''A switching element is placed across a filter and controllably activated to dynamically change the response of the filter. Specifically, additional damping is switched into the "Bell" characteristic, interjected during blanking and removed after the beginning of white lead-in, to dynamically change the response of the band-pass "Bell" filter in a Sequential Color and Memory Television System.'' | ||