Video Inlet鈩?/div>
PRODUCT BRIEF
USB VIDEO CAPTURE REFERENCE DESIGN
FEATURES
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The Video Inlet is a USB plug and play peripheral for
real-time capture of full motion video to the PC
High-quality, low-cost and easy-to-use solution
Input is standard NTSC or PAL composite video from
camcorder, VCR, desktop camera or TV
Output signal is USB compliant, can be connected to any
USB port
There are two output modes: MJPEG compressed video and
4:2:2 uncompressed YUV video
Capture resolutions in NTSC/PAL are:
Full (704 X 480/576), CIF (352 X 240/288) and
QCIF (176 X 120/144)
Real-time capture (30 fps in NTSC, 25 fps in PAL) of CIF
resolution in MJPEG compression mode
Capture of uncompressed QCIF resolution video at 15 fps
Audio is captured simultaneously using the PC sound card
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Software drivers are for Windows 95 and Windows 98,
supporting Video For Windows applications
JPEG software decoder included for real-time display while
capturing and for playback from a file
JPEG software encoder included to support video editing
applications
Hot attach / detach, no reboot, no need to open PC box
Supports OHCI and UHCI USB controllers and Microsoft
USBD software stack
Complete reference design kit contains evaluation board,
documentation, schematics, bill of materials and software in
object code
Royalty free license provided for software drivers distribution
Drivers source code also available
Based on Zoran field proven MJPEG codec technology
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APPLICATIONS
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Video capture of real time clips
Capture of still images
Video editing (e.g. VideoWave,
MediaStudio)
Video mail
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Video on the web
Desktop video conferencing (e.g.
NetMeeting)
Video clips in presentations (Power
Point)
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Video for training
Video in educational titles
Video clips for entertainment
Photo album
DESCRIPTION
The Video Inlet is an external USB box that enables connection
of any composite video source from a standard camera, VCR,
TV set or camcorder and transfer into the PC in compressed
format (optional). This high quality video can be used in the PC
for storage onto the hard disk, video editing, or sending as video
mail. It works also with video conferencing applications and for
video servers on the web. The video is decompressed in
software by the CPU and displayed on the PC monitor. The main
advantages of the Video Inlet are its high-quality and simple
installation. It supports hot attach / detach to the USB port and
there is no need to open the PC box or to reboot the system.
Standard Camera
Composite
Video
Signal
Video Inlet
PC
USB
Protocol
USB Port
PC Monitor
Figure 1. Video Inlet System Block Diagram
ZORAN Corporation
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3112 Scott Blvd.
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Santa Clara, CA 95054
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(408) 919-4111
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FAX (408) 919-4122
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www.zoran.com
December 1997
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