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Электронный компонент: NW802

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divio
remains on the cutting-edge of digital video technology with
the NW802, the industry's first single-chip PC Camera engine. The
NW802 enables a new class of low-cost, high-performance USB-based
PC Cameras. Leveraging
divio's
patented JPEG-lite technology, the
NW802 provides real-time, full-motion digital video capture across a
standard USB interface.
divio's
dynamic-bit-rate control automatically
adjusts the camera's video compression rate to guarantee the highest
video performance under any given bandwidth conditions. Next-
generation PC Cameras powered by the NW802 make possible new
applications including video capture, video e-mail, video conferencing,
and still image capture at affordable prices.
The NW802 replaces the complex, costly chip sets used in current PC
Camera designs. The NW802's fully integrated design integrates a
number of functions into a single-chip - JPEG-lite
TM
encoder, image
processing, auto-exposure, timing and sync generator, USB interface,
and support for off-the-shelf CCD sensors.
To simplify implementation and reduce time to market, a PC Camera
manufacturing kit with full functionality is also available. The kit
includes all of the hardware, software and documentation necessary
to quickly and easily develop low-cost, high-performance PC
camera designs.
divio
is leading the way to superior digital video on the PC at an
affordable price.
High Quality Video and Still Image Capture
Real-time, full-motion digital video capture
30 frames/sec at CIF resolution (352 x 288)
15 frames/sec at VGA resolution (640 x 480)
Patented JPEG-Lite compression technology
Faster frame rates and larger frame images
Based upon DCT compression algorithm
Dynamic-bit-rate control for maximum throughput
Superior Image Processing
Auto exposure and white balancing
Edge detection and enhancement
User-selectable gamma correction
User-selectable hue, saturation and contrast control
Color space conversion-RGB to YUV 4:2:2
Missing pixel interpolation
Down sampling support
Standard Output Format Support
640 x 480 / 320 x 240 / 160 x 120 VGA
352 x 288 CIF
176 x 144 QCIF
CCD Sensor Support
640 x 480 pixel resolution, progressive scan
(non-interlaced) color
CCD
Support for off-the-shelf CCDs
Panasonic / Sharp / Sony / Fuji
Features and Benefits
Standard Block Diagram
NW802
PC Camera
Engine
JPEGx
Encoder
A/D
CCD
USB
Image
Processor
Vertical
Driver
SYNC &
TG
NW802
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Sales Information
divio
,
inc.
997 East Arques Avenue
Sunnyvale, CA 94086 USA
Phone: (408) 732-1205
Fax: (408) 732-4022
E-mail: sales@divio.com
http://www.divio.com
Worldwide contacts:
visit http://www.divio.com
Optics
Telecom
Voice / video
Internet
Internet
E-mail
Floppy
(CCD)
640 x 480
A/D
Capture - Edit - Distribute in Realtime
Videoconference / chat
802 - PCAM
Video
Still Image
PC / MAC
Image
Process
Timing
Gen
JPEG Lite
USB I/F
Line Memory
Telecom
Voice / video
802
802
WIN98
802
TM
NW802
PC Camera Manufacturing Kit
Applications
Video Capture and Editing
Video E-mail and Video Postcards
Videoconferencing
Still Digital Photography
Surveillance
Board Components
divio
NW802LQ PC Camera engine
640 x 480 Color CCD
USB Interface
Fast f/1.6 aperture, 5.7mm lens
Minimum System Requirements
Intel Pentium-class Processor
(233MHz or higher)
32MB system memory or higher
Windows 98 operating system
Apple Mac
USB interface
Software Driver Support
TWAIN Driver
Quicktime
Direct Show
Kit Contents
divio
NW802P PC Camera
reference board
Windows 98 software drivers
Schematics / Gerber files
Technical Manuals
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Copyright 1999 divio, inc. All rights reserved. PCAM and the divio logo are
trademarks of divio, inc. Other product names are registered trademarks of their
respective companies. Product specifications are subject to change without notice.