3.5.1 Miscellaneous Options
This menu holds several unrelated settings.
Miscellaneous
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| Curtain Pattern | Logo |
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| Plug and Play (EDID Enable) |
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| Preferred Source Detection | 16 x 9 |
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| HD Interlaced Content Motion | Normal |
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Curtain Pattern determines what the screen will show when there is no source picture. You have a choice of sev- eral solid colors or the logo.
Plug and Play (EDID Enable)
For Plug and Play and EDID, see the full discussion in “EDID: What It Is and How It Works” on page 118.
Preferred Source Detection
Analog computer video cards provide only vertical and horizontal frequencies. Sometimes, this is not enough information. Bay Cat X receiving such “ambiguous” signal modes, in certain cases, could misinterpret the resolution to be any of three different modes. For example, 1024 x 768, 1280 x 768, and 1360 x 768 all have the same respective horizontal and vertical frequencies but represent different aspect ratios, 4 x 3, 15 x 9, and 16 x 9. By specifying the correct source detection mode, Bay Cat X can correctly interpret the signal and display the incoming image in the proper aspect ratio. The native aspect ratio of Bay Cat X is 16 x 9, and the default resolution is 1366 x 768.
HD Interlaced Content Motion
HD Interlaced Content Motion is a control you probably won't need to touch. Here is an explanation of it.
Some video signals, most notably those made for televi- sion, are what is known as “interlaced”. At one moment in time, only the even number lines of image are transmitted to the display. At the next moment (usually 1/30 or 1/25 of a second later) the odd numbered lines are transmitted. These two moments in time are known as fields. On CRT television sets, the even field persisted on the phosphor long enough so that by the time the odd field got there, our eyes put it all together into one picture. On digital displays such as Bobcat X, the electronics reassembles the odd and
even fields together into one image to display every sixtieth (or fiftieth) of a second. If the image is static, such as with computer graphics, it is quite simple to put the fields back together. However, if the image is moving, it can cause problems because an image will have moved from the time the even lines arrive to when the odd lines arrive. A special piece of electronics known as a deinterlacer can analyze whether an image is moving or stationery and use mathe- matical algorithms to put the two image fields together in the best way. The Bobcat X has deinterlacer electronics to take care of standard definition television signals. However, it does not have deinterlacer circuitry for high definition television (1080i). The “HD Interlaced Content Motion” control gives the regular electronics some help in determin- ing how to put together the two fields if you are viewing 1080i. Keeping this setting at “Normal” works best for most images. This will assume the image has no fast motion. The only time you will see a problem with this set- ting is if you are at native resolution (i.e. you are using a Baycat X or your scale mode is set to one to one on a Bob- cat X). In that case, you may see something of a "zipper" effect on the edge of moving objects. To get rid of this, change the setting to "Rapid". However, if you do, you will probably see static images flickering slightly (known as “twittering”).
Another alternative to minimize both effects is to keep the setting at Normal and set overscan (in the Aspect Ratio menu) to 1%. This will turn on the scaler and minimize the zipper effect.For more information
about the Miscellaneous options, see “Miscellaneous Set- tings” on page 97.
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