| 1. | A CIC filter consists of one or more integrator and comb filter pairs.
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| 2. | Hence the magnitude response of the comb filter is periodic.
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| 3. | The TV uses a three-dimensional comb filter to improve color separation and remove picture artifacts.
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| 4. | Comb filters are also commonly used to separate signals, and eliminate artifacts, from composite sources.
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| 5. | While good comb filters can do so adequately, these two signals cannot be completely separated.
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| 6. | By the 1970s, TVs had begun using solid-state electronics and the first comb filters appeared.
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| 7. | Faroudja s adaptive comb filter technology was recognized with a Technology & Engineering Emmy Award in 1991.
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| 8. | However, the vacuum tube-based electronics of the time did not permit any cost-effective method of implementing a comb filter.
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| 9. | Three-line digital comb filter, anyone?
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| 10. | By the 1990s, a further development took place with the advent of three-line digital ( " 3D " ) comb filters.
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