Video Recorder (NVR, DVR, etc.)

Block diagram (SBD) for a Digital Video Recorder and Digital Video Server for HD video surveillance featuring video decoders and audio codecs which allows for storage of data, and enables remote access via TCP/IP networks.

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A digital video recorder (DVR) and digital video server (DVS) are appliances used in video surveillance. These appliances take the analog video signals from multiple analog surveillance cameras and digitize them. A processing engine encodes the video streams in digital formats such as H.264, motion JPEG, MPEG-4 or proprietary codecs to allow for data storage or transmission.

While the DVR is designed to store and view this video stream locally, the DVS sends the encoded video to the larger security network using the TCP/IP protocol. Higher performance systems also have video content analysis (VCA) capabilities allowing for the automatic detection of motion, crossing of virtual fences, etc.

DVRs and DVSs are used to upgrade existing security systems, which are based on analog surveillance cameras. Replacing tape-based VCRs, the DVR/DVS automates the storage of surveillance data and enables remote access to surveillance installations via TCP/IP networks. DVRs/DVSs typically have 4-, 8- or 16-input channels. With further integration, the channel count will increase to 32, 64 and beyond.

With the advent of IP cameras, systems that accept both analog and digital formats are advantageous as the installed analog camera market base still dominates. For this reason, Hybrid DVRs are available today. These appliances are versatile video recording devices that also must have the capability to perform storage and VCA functions.

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Application Notes (11)

Title Abstract Type Size (KB) Date Views
HTM 8 KB 19 Mar 2015 322
HTM 8 KB 10 Sep 2012 379
HTM 8 KB 06 Oct 2011 1805
HTM 8 KB 18 May 2011 308
HTM 8 KB 01 Mar 2011 371
HTM 9 KB 29 Apr 2010 174
HTM 8 KB 11 Apr 2010 266
HTM 9 KB 09 Dec 2009 185
HTM 8 KB 25 Nov 2009 727
HTM 9 KB 10 Sep 2009 505
HTM 9 KB 17 Jul 2008 1828

User Guides (3)

Title Abstract Type Size (KB) Date Views
htm 8 KB 04 Aug 2010 111
htm 8 KB 16 Nov 2009 102
htm 8 KB 07 Dec 2007 119
    

Selection and Solution Guides

Selection Guides (3)

Title Abstract Type Size (KB) Date Views
PDF 5.8 MB 10 Jun 2016 45916
PDF 5.57 MB 12 Aug 2014 5917
PDF 2.55 MB 10 Oct 2013 5246

Solution Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 5.43 MB 15 Dec 2011 1976

Product Bulletin & White Papers

Product Bulletin (1)

Title Abstract Type Size (MB) Date Views
PDF 515 KB 09 Nov 2012 447

White Papers (5)

Title Abstract Type Size (MB) Date Views
PDF 960 KB 21 Mar 2016 6909
PDF 2.01 MB 30 May 2012 1153
PDF 2.5 MB 11 Apr 2012 2131
PDF 94 KB 16 Jun 2011 210
PDF 150 KB 28 Aug 2009 596

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Topics Last modified
DaVinci 26 Jun 2013 7:12 PM
DM816x Device Evaluation 26 Jun 2013 7:12 PM
DM816x Hardware Design Guide 26 Jun 2013 7:12 PM
DM816x Software Design Guide 26 Jun 2013 7:12 PM

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