Color encoder measurement system with adjustment of amplitude ratio of R, G and B component signals
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United States of America Patent
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May 25, 1993
Grant Date -
N/A
app pub date -
Oct 25, 1991
filing date -
Apr 24, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Characteristics of a color encoder can be measured under the same condition as a practical operation without modifying the color encoder as a device under test. A test signal generator generates R, G and B component signals as test signals and they are applied simultaneously to the color encoder. The output amplitudes and/or output phases of the component signals from the test signal generator are adjusted such that the color encoder produces at least one of a luminance signal, an I-axis signal and a Q-axis signal in accordance with a measurement item.
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