(1) A hardware circuit that converts analog video (NTSC, PAL, SECAM) into digital code and vice versa. The term may refer to only the A/D and D/A conversion, or it may include the compression technique for further reducing the signal (definition #2 below). See codec.
(2) Hardware and/or software that compresses and decompresses a digital video signal. MPEG, Windows Media Video (WMV), H.264, VC-1 and QuickTime are examples of codecs that compress and decompress digital video. See codec examples, codec, MPEG, Windows Media formats, QuickTime, H.264 and VC-1.
(2) Hardware and/or software that compresses and decompresses a digital video signal. MPEG, Windows Media Video (WMV), H.264, VC-1 and QuickTime are examples of codecs that compress and decompress digital video. See codec examples, codec, MPEG, Windows Media formats, QuickTime, H.264 and VC-1.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
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