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TW2802 Datasheet(PDF) 21 Page - List of Unclassifed Manufacturers

Part # TW2802
Description  TW2802/4 Multiple Video Decoder For Security Applications
PDF  80 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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TW2802 Datasheet(HTML) 21 Page - List of Unclassifed Manufacturers

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Preliminary
TW2804/TW2802 Multiple Video Decoder
Techwell, Inc.
www.techwellinc.com
Datasheet Rev. 2.4
09/09/2003
21
Table 3 The recommended values of sensitivity parameters for a proper operation
LVLSENS
TMPSENS
SPTSENS
More Sensitive
Less Sensitive
0
7
~
10
1
3
~
9
2
2
~
8
0
3
2
~
7
0
3
~
9
1
2
~
8
2
2
~
7
1
3
2
~
6
0
3
~
8
1
2
~
7
2
1
~
6
2
3
1
~
5
0
3
~
7
1
1
~
6
2
1
~
5
3
3
1
~
4
Velocity Control
Motion has various velocities. That is, in a fast motion an object appears and disappears rapidly
between the adjacent fields while in a slow motion it is to the contrary. As the built-in motion
detection algorithm uses the luminance level difference between two adjacent fields, a slow
motion is inferior in detection rate to a fast motion. To compensate this weakness, the
MDPERIOD parameter is used. MDPERIOD parameter adjusts the field interval in which the
luminance level is compared. Thus, for detection of a fast motion a small value is needed and
for a slow motion a large value is required. The parameter MDPERIOD value should be greater
than TMPSENS value.



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