DV port(= IEEE 1394) != ZV port

DV port는 IEEE 1394와 같고, 캠코더에서 캠코더 모드로 하면
PC에서 이미징 장치로 캡쳐를 받을수 있다고 한다.

(삼성 캠코더의 경우 별다른 설정없이 1394 꼽자마자 이미징 장치로 인식,
VISTA 내장 window maker에서 캡쳐되는것 확인)

[링크 : http://k.daum.net/qna/openknowledge/view.html?category_id=KL]

Using IEEE 1394 Devices with Windows XP
Published: March 25, 2002
By Galan Bridgman, Windows XP Expert Zone Community Columnist
[링크 : http://www.microsoft.com/windowsxp/using/moviemaker/21/dvpassthrough.mspx]

Capturing Video in Windows Movie Maker 2.1 by Using DV Pass-Through
Published: August 25, 2004
[링크 : http://www.microsoft.com/windowsxp/using/moviemaker/expert/bridgman_02march25.mspx]

[링크 : http://en.wikipedia.org/wiki/DV]
[링크 : http://en.wikipedia.org/wiki/IEEE_1394_interface]

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ZV 포트는 예전 486 이전 시절의 노트북에 장착되어 있던 녀석인데..
이름이 비슷하지만 기억속에 잊혀진 녀석이다. 아무튼 문득 기억이 나서 검색을 해보니 무시무시한 녀석이다.
(그래픽 카드 프레임 버퍼로 바로 때려박는다) 물론 과거의 컴퓨터에서는 MPC Level 1 , 2 이런 이야기가 나올정도로
CPU 파워도 약했고, 실질적으로 패러럴 포트를 제외하면 SCSI가 가장 빠르던 시절이니 비디오같은 대용량 데이터를
실시간으로 전송하기 위해서는 어쩔수 없는 방법이었을 것이다.

In computing, a zoomed video port (often simply ZV port) is a unidirectional video bus allowing a device in a PC card slot to transfer video data directly into a VGA frame buffer, so as to allow laptops to display real-time video. The standard was created by the PCMCIA to allow devices such as TV tuners, video inputs and MPEG coprocessors to fit into a PC card form factor and provide a cheap solution for both the laptop manufacturer and consumer. The ZV port is a direct connection between the PC card slot and VGA controller. Video data is transferred in real time without any buffering, removing the need for bus mastering or arbitration. The ZV port was invented as an alternative to such methods as the VAFC (VESA Advanced Feature Connector). [링크 : http://en.wikipedia.org/wiki/ZV_Port]

A ZV-enhanced PCMCIA port accepts standard cards in addition to Motion Picture Experts Group (MPEG) cards that are ZV-compliant. A ZV-compliant MPEG card utilizes internal software to change the pin-out configuration of the port in order to provide a dedicated video bus. The card also features built-in ports for accepting video-in signals. By connecting devices to the video-in ports on the ZV-card, the ZV port becomes a capture port. Using the ZV port with a MPEG ZV-compliant card, a laptop or notebook can capture television programs and record them to hard disk. The incoming signal is first displayed full-screen, then software hands off the signal to the CPU to process for storage on the hard disk. A ZV port card also captures digital audio and can play back in full digital surround sound. The MPEG ZV-card is the equivalent of an add-on desktop TV tuner card. In addition to capturing programs, a ZV port card can also be used for streaming live video conferencing, gaming applications, and making home movies. Software provides the ability to edit movies for a professional-style home video studio. Video input ports vary on MPEG ZV-compliant cards depending on the card itself. Most cards include composite video-in, S-Video and cable-in. Some utilize a single proprietary port that uses a multi-purpose cable or dongle which accommodates all of these tasks, even supporting a remote control. Typically, ZV port cards also feature composite and S-Video output for watching the movies you’ve created on an external monitor such as a television. [링크 : http://www.wisegeek.com/what-is-a-zv-port.htm]