Sunday, March 4, 2007

What Is On The Nln Pre Entrance Exam

PRACTICE 1. COMPUTER GRAPHICS. INTRODUCTION


DVI

digital video interface or digital visual interface (DVI English, "digital visual interface" or "digital video interface) is a video connector designed for maximum visual quality possible in digital displays such as liquid cristial monitors and flat screen digital projectors. Was developed by the industrial consortium DDWG (Digital Display Working Group, Working Group for Digital Screen).

Specifications


Digital


minimum clock frequency: 21.76 MHz maximum clock frequency for single-link: 165 MHz maximum clock frequency to double bond: Limited cable only for the pixels per clock cycle: 1 (single link) or 2 (dual link) bits per pixel: 24 screen mode examples (Single link):
HDTV (1920 × 1080) at 60 Hz with 5% LCD deleted (131 MHz) 1920 x 1200 at 60 Hz (154 MHz) UXGA (1600 × 1200) at 60 Hz with GTF deleted (161 MHz) SXGA (1280 × 1024) at 85 Hz with GTF deleted (159 MHz) Example display modes (dual link): QXGA (2048 × 1536) at 75 Hz with GTF deleted (2 × 170 MHz), HDTV ( 1920 × 1080) at 85 Hz with GTF deleted (2 × 126 MHz) 2560 × 1600 (in 30-inch LCD)

GTF (Generalized Timing Formula ",

Generalized Timing Formula) is a VESA .



Analog

band width RGB: 400 MHz at -3 dB

Numbers pin connector (jack view)

1 2 3 4 5 6 7 8 C1 C2
9 10 11 12 13 14 15 16 C5 17 18 19 20 21 22 23 24 C3 C4
functions pins Pin Name Function 1 TMDS Data 2 - Digital red - (Link 1) 2 TMDS Data 2 + Digital red + (Link 1) 3 Protection TMDS data 2 / 4 4 TMDS Data 4 - Digital green - (Link 2) 5 TMDS Data 4 + Digital green + (Link 2) 6 DDC Clock 7 DDC Data 8 Analog Vertical Sync

9 TMDS Data 1 - Digital green - (Link 1) 10 TMDS Data 1 + Digital green + (Link 1)

11 Protection TMDS data 1 / 3 12 TMDS Data 3 - Digital Blue - (Link 2)

13 TMDS Data 3 + Digital blue + (Link 2) 14 +5 V Power for monitor standby

15 Ground Return for pin 14 and analog sync detection 16 Hot Plug

17 TMDS data 0 - Digital Blue - (Link 1 ) and synchronization digital

18 TMDS Data 0 + Digital blue + (Link 1) and digital sync

19 Protection TMDS data 0 / 5
22 Protection TMDS Clock
23 TMDS Clock + Digital clock + (Links 1 and 2)

24 TMDS Clock-Digital clock - (Links 1 and 2)

C1 Analog Red Green analog C2 C3
Blue analog horizontal sync analog C4
C5 Ground (analog) signals Return to Red, Green and Blue
HDMI




High-Definition Multi-media Interface (HDMI)-High Definition Multimedia Interface, is a standard digital video and audio without compression and supported by industry, which is expected to be the replacement for SCART. HDMI provides an interface between any audio source, digital video, for example, a digital TV tuner, DVD player or A / V receiver, and monitor audio / Digital video as a digital television (DTV).
HDMI allows the use of standard video, enhanced or high definition video and multichannel digital audio in one cable. Is independent of the various DTV standards such as ATSC, DVB (-T,-S,-C), which are only MPEG data encapsulation. After being sent to a decoder, we obtain uncompressed video data, can be high definition. These data are encoded into TMDS for transmission digitally via HDMI. HDMI also includes 8 channels of uncompressed digital audio. From version 1.2, HDMI can use up to 8 audio channels a bit. The one-bit audio is used on Super Audio CDs.
Among the creators of HDMI include leading manufacturers of consumer electronics, Hitachi, Matsushita Electric Industrial (Panasonic), Philips, Sony, Thomson (RCA), Toshiba and Silicon Image. Digital Content Protection, LLC (a subsidiary of Intel) provides High-bandwidth Digital Content Protection (HDCP)-Bandwidth Digital Content Protection high-bandwidth, HDMI. HDMI also has the backing of major film producers Fox, Universal, Warner Bros. and Disney, system operators DirecTV and EchoStar (Dish Network) as well as CableLabs and Samsung.



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