DIGITAL CCTV A Security Professional’s Guide phần 1 pptx

DIGITAL CCTV A Security Professional’s Guide phần 1 pptx

DIGITAL CCTV A Security Professional’s Guide phần 1 pptx

... Transmission 11 1 8 Wireless Video Transmission 12 9 9 Examples of Digital Video for Security 14 7 10 Pieces and Parts 16 3 11 Integrating Digital Video with Other Technologies 17 9 12 More Digital ... compression and transmission of video, audio, and data. xiv Introduction We Live in an Analog World 11 GAMMA Gamma is basically explained as the relationship between the b...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide phần 4 pptx

DIGITAL CCTV A Security Professional’s Guide phần 4 pptx

... on a wavelet-based device from another manufacturer. 11 4 Digital CCTV a plastic jacket. See Figure 7 -1. It is used to transmit both analog and digital signals and has superior frequency characteristics ... what they all mean. This brings us around to the question “How digital is it?” It is possible to have analog cameras and monitors, use coaxial cable, and have a DVR, an...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide phần 3 docx

DIGITAL CCTV A Security Professional’s Guide phần 3 docx

... A through H: A = 0, C = 10 10, E = 11 00, G = 11 10, B = 10 0, D = 10 11, F = 11 01, H = 11 11. Using this code, the same message as above is encoded as follows: 10 0 010 10 010 110 110 0 011 010 10 010 000 011 10 011 11. This ... 11 11 111 1 11 11 111 1 11 11 111 1 11 11 11 11 111 1 00 01 0000 00 01 Compressed: 0 × 3, 1, 0 × 4, 1 × 40, 0 × 3, 1, 0 × 7, 1 Thi...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide phần 5 docx

DIGITAL CCTV A Security Professional’s Guide phần 5 docx

... twisted-pair wire) ● 10 0BASE-FX (a two-strand optical fi ber cable) There is a vast scope of applications, and the various methods are mutating and evolving at a rapid pace. 13 2 Digital CCTV around ... increase the amount of data that can be transferred over analog cellular systems. TDMA is also the access technique used in the European digital standard (GSM) and the Japane...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide phần 6 pdf

DIGITAL CCTV A Security Professional’s Guide phần 6 pdf

... video data captured. A networked digital video management system is a perfect example of how to add camera “eyes” to an airport, or any facility, and automate the alarm triggers on the data captured ... footage from inside and outside, store operational data, and generally improve the quality and safety of public transportation. The Santa Clara Valley Transportation Authority (VTA) o...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide phần 7 doc

DIGITAL CCTV A Security Professional’s Guide phần 7 doc

... the alarm location, assess the information, and take appropriate actions to alleviate the situation. Unnecessary calls to law enforcement are virtually eliminated. Another distinct advantage ... false alarm dilemma. False alarm fi nes can range from $20 to $250 or more. If false alarm fi nes are affecting a company’s profi tability, remote video alarm verifi cation can help dramatically r...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide phần 8 doc

DIGITAL CCTV A Security Professional’s Guide phần 8 doc

... 11 9 PSTN, 11 7, 11 9 selection factors, 11 8 SW56, 12 3 T1, 12 3 12 4 T3, 12 4 wireless broadband, 13 5 14 1 cellular, 13 2 13 5 Global Positioning System, 14 2 14 3 infrared, 13 1 13 2 microwave, 13 2 More Digital ... 12 4 12 5 connection types, 11 7 11 8 DSL, 12 1 12 3 Ethernet, 12 5 12 6 fast Ethernet, 12 6 12 7 frame relay, 12 6 ISDN, 11 9 12 0 media, see Coaxial cab...

Ngày tải lên: 12/08/2014, 16:21

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DIGITAL CCTV A Security Professional’s Guide docx

DIGITAL CCTV A Security Professional’s Guide docx

... confusing at fi rst, but once you catch on it is really very simple. 256 values ranging from 0 to 255 are shown here: 0 = 00000000 1 = 000000 01 2 = 00000 010 254 = 11 111 110 255 = 11 111 111 As previously ... Security 14 7 10 Pieces and Parts 16 3 11 Integrating Digital Video with Other Technologies 17 9 12 More Digital Video Applications 18 9 13 From VTRs to VCRs, DVR...

Ngày tải lên: 27/06/2014, 11:20

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Brushes iPhone and iPod touchUser’s Guide phần 1 pptx

Brushes iPhone and iPod touchUser’s Guide phần 1 pptx

... several sample paintings are installed automatically. Import an album photo as a background. Create a new painting. Show the info panel. Share your gallery with your computer. Tap a painting ... 6 Painting 8 Undo and Redo 9 Zooming and Panning 9 Shortcuts 10 Brush Settings 11 Erasing 12 Paint Color 13 Eyedropper 15 Blending 17 Layers 19 Working with Layers 20 Copying...

Ngày tải lên: 08/08/2014, 21:21

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trojans worms and spyware a computer security professional's guide to malicious code (2005)

trojans worms and spyware a computer security professional's guide to malicious code (2005)

... modem may actu- ally be placing a call to as far away as Chad, Madagascar, or other countries, and the computer user may be billed for an international call. Some Web sites may be advertised as ... types of impact that a malicious code attack has on an organization. But understanding the costs associated with malicious code attacks and the impact that attacks can have on their organiza-...

Ngày tải lên: 04/06/2014, 13:21

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