引用:
作者kevincti
簡單的說軟體搞不定當然只能說晶片不好,難道會有廠家說自己能力不足嗎??
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願聞其詳.
Facts:
. XCEIVE XC2028 Silicon Tuner 在很多方面是比Philips, MicroTune 的 Silicon Tuner 好.
. XCEIVE XC2028 Silicon Tuner 在很多方面是不能和CAN Tuner比. (比如要很乾淨的3.3V和1.8V電源)
. Conexnt XC2028 Demo Board (代號Eagle)的驅動程式也已經在1月份給所有廠商.
. Firmware=軔體, Software=軟體, Live DEMO=裝機動態展, Static DEMO=板子靜態展.
. 除COMPRO之外的其它公司並沒有在Computex強調XC2028電視卡.
看看各家公司的"產品一覽表"DM, 細心一點,就會找到XC2028電視卡.
. 下面摘錄自XCEIVE Document (June 24, 2005):
Q. What improvements have been introduced with firmware version 2.1?
The main change is the addition of improved automatic calibration routines that compensate for process spread and operating conditions.
Other improvements include:
• Improved sound quality for mono output modes (in particular for 7/8MHz systems).
• Increased tuner AGC speed (approximately 4-fold for analog TV).
• Improved sensitivity for 7/8MHz analog TV.
• Improved scanning reliability (see also suggested scan procedure in this document).
• DTV output frequency is now identical for UHF/VHF channels with BG systems.
• Distinction is now made between ATSC and QAM in 6MHz DTV mode. This permits different operating parameters that optimize performance trade-offs for the two different modulations.
• Improved support for strong signals in 7/8MHz DTV.
• We now provide specific support for 7 MHz DTV (Australia).
• Other changes resulting in improved reception quality.
Q. What is the recommended procedure for automatic video/sound standard detection?
For analog television, we recommend using standard detection information from an external chroma/sound decoder. Similarly, for digital television, we recommend using status information from an external DTV decoder.
Ultimately an external CVBS decoder can provide more complete and reliable standard information, typically by means of the chrominance burst.
. AverMedia, YUAN, COMPRO 是電視卡專業廠.
Leadtek是VGA卡專業廠,Leadtek不是電視卡專業廠.
. AverMedia, YUAN 專注於OEM生意.COMPRO專注於自有品牌生意.
. 2004年 3D Y/C 電視卡的市場需求:
- 歐美沒有強烈的需求
- 日本有強烈的需求, 尤其是"硬壓卡". Ghost Reduction 也是必需.
- 臺灣有強烈的需求.