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參數(shù)資料
| 型號(hào)： | GF9330-CBP |
| 廠商： | Gennum Corporation |
| 英文描述： | High Performance HDTV/SDTV Deinterlacer |
| 中文描述： | 高性能高清/標(biāo)清去隔行掃描 |
| 文件頁數(shù)： | 39/42頁 |
| 文件大?。?/td> | 449K |
| 代理商： | GF9330-CBP |
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GF9330 Data Sheet
39 of 42
Proprietary and Confidential
18283 - 4
June 2004
3.11.4 Static and Freeze Frame Detection/Compensation
The GF9330 operates in either disabled, automatic or manual mode for detection
and compensation of freeze frame conditions within the video input stream. When
set to operate in disabled mode (host interface bits, FF_MODE=10), the GF9330
disables the internal freeze frame detection and compensation circuitry and also
ignores any information presented to the FF_EN pin or the host interface bit,
FF_EN_BIT. When set to operate in automatic mode (FF_MODE[2:0]=01) the
GF9330 internally detects and compensates for freeze frame situations. When a
freeze frame situation is detected, the GF9330 reports this in the FF_DETECT
status bit found in the host interface. This bit is updated at the beginning of a field
and remains valid for the remainder of the field. When set to operate in manual
mode (FF_MODE=00) the GF9330 monitors the FF_EN pin and the host interface
bit, FF_EN_BIT to enable or disable freeze frame compensation. Static and freeze
frame detection compensation is further described in
Table 3-10: FF_MODE[1:0]
.
In order to manually force the freeze frame detector in the GF9330 into freeze in
static or freeze in motion, the following parameters must be set as follows:
1. Freeze in Static: Uses the temporal filter only.
MSF = 7FFFh
FF_DET_HV = 0000h
FF_EN_BIT = 1
2. Freeze in motion: Uses both the vertical and temporal filter.
MSF = 0000h
FF_DET_HV = FFFFh
FF_EN_BIT = 0
NOTE: When using the freeze in motion settings when the image is static, there will
be vertical ringing along the horizontal edges.
3.11.5 Motion Detection and Compensation
The GF9330 operates in disabled or automatic mode for motion detection and
compensation. When set to operate in disable mode (host interface bits,
Table 3-10: FF_MODE[1:0]
Host Interface
FF_MODE[1:0]
Register
External
FF_EN Pin
Host
Interface
FF_EN_BIT
Description
00
0
0
Manual: freeze frame detection and compensation disabled
0
1
Manual: perform freeze frame compensation
1
0
1
1
01
x
x
Automatic freeze frame detection/compensation
10
x
x
Freeze frame detection and compensation disabled
11
x
x
Reserved
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相關(guān)代理商/技術(shù)參數(shù) |
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| GF9331-CBP | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:DTV/SDTV Motion Co-processor |
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