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kkndlin
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加入日期: Dec 2000
您的住址: 充滿輻射 電磁波的地方
文章: 1,117
今天剛剛入手

在燦坤3C 賣3990



至於 有沒有這個價值

因為剛入手 所以 還沒做完整測試

而 據我所知

這款電視盒的影像處裡晶片 是使用 VXIS視傳科技股份有限公司 的晶片

有人知道這家公司嗎

國內竹科的廠商

而 DREAMTV 應該是使用其公司的VX7011、VX1120 這兩款晶片

有關這兩款晶片 我貼一些網頁上的介紹上來


VX1200:

VX1120A is a highly integrated solution for video capturing and progressive video displays. VX1120A can accept analog NTSC/ PAL CVBS, S-Video, or YPbPr video from TV tuner, DVD, or VCR sources, including weak and distorted signals. Automatic gain control (AGC) and 10-bit 3-channel A/D converters provide high-resolution video output, and automatic video source detection let user easy to use for various signal source. Proprietary 5-line high quality adaptive comb filter and de-interlace unit convert interlaced video sources into non-interlaced formats for direct display on progressive TV, monitors, and projectors. Output D/A converters and OSD are built in to support a direct connect to display devices. Various formats of digital output are also provided for further digital video processing.VX1120A can be controlled via 2-wire micro-controller interface (full write / read capability for all programming registers).

FEATURES
•Composite, S-Video, or Color Difference (YPbPr) inputs: NTSC and
NTSC-Japan; PAL (B, D, G, H, I, M, N, Nc).
•10-bit A/D converters
•Adaptive 3/5-line comb filter
•Luma and chroma sharpening
•Support various interlaced and non-interlaced digital output
•Support square pixel output format
•3-channel 10 bit DAC for RGB/ YPbPr analog progressive video output
•Programmable OSD
•Support 640x480, 720x480, 800x480
APPLICATIONS
•Progressive TV
•LCD TV
•PDP TV
•Projection TV
•DVD Recorder
•Advanced Video Scan Converter
•Multimedia PC

VX7011:

VX7011 Advanced USB Video Capture is a low-cost, high performance chip solution for video compression & capture application. VX7011 accept NTSC/PAL video in 8-bit YUV 4:2:2 format (CCIR656).
A built-in high performance proprietary compression provides high quality 30 frames per second in 704x480(NTSC) or 25 frames per second in 704x576(PAL) resolution. An on-chip DRAM controller is used to interface to SDRAM, which provides frame memory and bit stream buffer. The compressed data can be easily access through on-chip transaction unit.

FEATURES
•Support CCIR656 TV/YUV 4:2:2 image inputs
•High speed real time image compression
•Encodes in 704x480(NTSC), 704x576(PAL) picture format at 30,
25 frame per second
•Professional snapshot mode
APPLICATIONS
•High Quality PC Theater
•PC based DVR
•Convert VHS/V8/D8 tapes to VCD/DVD
•Notebook video preview and capture

有人知道這家公司的技術嗎

是否能跟 c牌 與 p牌 t牌的技術 競爭呢
__________________
拍謝.... 若有得罪之處 尚請見諒
舊 2003-06-27, 11:55 PM #3
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