December 1997
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
PRODUCT BRIEF
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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
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High-quality, low-cost and easy-to-use solution
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Input is standard NTSC or PAL composite video from
camcorder, VCR, desktop camera or TV
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Output signal is USB compliant, can be connected to any
USB port
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There are two output modes: MJPEG compressed video and
4:2:2 uncompressed YUV video
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Capture resolutions in NTSC/PAL are:
Full (704 X 480/576), CIF (352 X 240/288) and
QCIF (176 X 120/144)
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Real-time capture (30 fps in NTSC, 25 fps in PAL) of CIF
resolution in MJPEG compression mode
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Capture of uncompressed QCIF resolution video at 15 fps
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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
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JPEG software decoder included for real-time display while
capturing and for playback from a file
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JPEG software encoder included to support video editing
applications
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Hot attach / detach, no reboot, no need to open PC box
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Supports OHCI and UHCI USB controllers and Microsoft
USBD software stack
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Complete reference design kit contains evaluation board,
documentation, schematics, bill of materials and software in
object code
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Royalty free license provided for software drivers distribution
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Drivers source code also available
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Based on Zoran field proven MJPEG codec technology
FEATURES
APPLICATIONS
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.
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Video capture of real time clips
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Capture of still images
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Video editing (e.g. VideoWave,
MediaStudio)
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Video mail
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Video on the web
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Desktop video conferencing (e.g.
NetMeeting)
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Video clips in presentations (Power
Point)
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Video for training
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Video in educational titles
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Video clips for entertainment
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Photo album
Video InletTM
USB VIDEO CAPTURE REFERENCE DESIGN
Figure 1. Video Inlet System Block Diagram
USB Port
PC
PC Monitor
Standard Camera
Video Inlet
Composite
Video
Signal
USB
Protocol
2
USB Video Capture Reference Design
For More Information:
U.S. Headquarters
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Zoran Corporation
3112 Scott Blvd.
Santa Clara, CA 95054 USA
Telephone: +1 (408) 919-4111
FAX: +1 (408) 919-4122
Israel Operations
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Zoran Microelectronics, Ltd.
Advanced Technology Center
P.O. Box 2495
Haifa, 31024 Israel
Telephone: +972 4 8545-777
FAX: +972 4 8551-550
Canada
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Zoran Toronto Labs
2157 Queen Street East
Suite 302
Toronto, Ontario, Canada M4E 1ES
Telephone: +1 (416) 690-3356
FAX: +1 (416) 690-3363
Japan
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Zoran Sales Office
2-26-2 Sasazuka
Shibuya-ku, Tokyo 151
Japan
Telephone: +81 3 5352-0971
FAX: +81 3 5352-0972
Video
Decoder
Figure 2. Video Inlet Detailed Block Diagram
Zoran ZR36060
JPEG Codec
Frame
FIFO
8x930 USB
Controller
Video In
USB Port
PC
Zoran JPEG
Software Codec
Functional Description
The main components of the Video Inlet are depicted in the
detailed block diagram below. Three modes of operation are
supported: MJPEG real-time capture, uncompressed YUV
capture and still image full resolution capture. The system is
capable of capturing up to CIF resolution real-time video with
simultaneous display on the PC monitor. This high quality video
is enabled by using the Zoran ZR36060 Integrated JPEG codec.
The Video Inlet, bundled with simple to use video capture and
editing applications, will create the market for low-cost video
capture and editing on the PC.
Minimum System Requirement
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Pentium processor; 166 MHz minimum
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USB port on PC or hub
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Win95 (with OSR 2.1) or Win98 operating system
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Video source (NTSC or PAL, composite)
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Hard disk space for capture (about 45MB/minute at best
quality level.)
Reference Design Kit Contents
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Board in a plastic case and USB cable
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DC adapter (optional)
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Electrical schematics (Orcad and Postscript)
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Technical reference manual
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Installation guide
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Software drivers (Win95 and Win98)
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JPEG software codec
PDF 
ZIP