| 31. | Clever circuitry has improved the color in modern TVs, but there are still only 525 scan lines.
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| 32. | A hypothetical scan line, with B representing a black pixel and W representing white, might read as follows:
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| 33. | The cameras scanned at a rate of 5 vertical scan lines per second, each composed of 512 pixels.
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| 34. | Placement of the framing mask at the left or right side of the disk gives vertical scan lines.
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| 35. | In principle, all three color encoding systems can be combined with any scan line / frame rate combination.
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| 36. | Fast Pot scanning increments the counter on every cycle and returns a usable result within two scan lines.
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| 37. | In " progressive scan " systems, each refresh period updates all scan lines in each frame in sequence.
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| 38. | The 36 kHz carrier frequency was chosen to render the system immune to interference from TV scan lines.
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| 39. | Harman Kardon claims its progressive scan output provides exceptional detail and color and all but eliminates scan lines.
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| 40. | Vertical Scrolling would ordinarily not be considered useful for ANTIC Mode F which is one scan line tall.
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