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The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that have a discrete number of levels, for example a sampled and quantified analog signal, or to the continuous-time waveform signals in a digital system, representing a bit-stream. In the first case, a signal that is generated by means of a digital modulation method is considered as converted to an analog signal, while it is considered as a digital signal in the second case.

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Blogs for Digital Signal

Digital TV: Missed Signals - Post I.T. - A Technology Blog From The ...

Security Fix Blog. Digital TV: Missed Signals. Having trouble with your digital TV reception? ... links to weblogs that reference Digital TV: Missed Signals: ...blog.washingtonpost.com/posttech/2008/05/missed_signals.html...

The Digital Signal Processing Blog

This is the Digital Signal Processing (DSP) Blog, created for the dissemination of the wonders of DSP technology. ... Blog. HOME. ABOUT. ARCHIVES. LINKS. BLOGS ...centerk.net/dspblog/

Digital Signals

Ed Richardson's blog, bringing his thoughts, insights and findings from a digital media perspective ... Digital Signals http://www.digital-constructions. ...www.digital-constructions.com/blog/blog.html

SIGNALDIGITAL.COM BLOG

SIGNALDIGITAL.COM BLOG. DIGITAL MARKETING & MEDIA CONSULTING. Sunday, ... Signal Digital A/S, Den Collinske Gaard, Amaliegade 9A, DK-1256 Copenhagen K, Denmark. ...signaldigital.blogspot.com/

www.SolidSignal.com

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Wikipedia About Digital Signal

The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that have a discrete number of levels, for example a sampled and quantified analog signal, or to the continuous-time waveform signals in a digital system, representing a bit-stream. In the first case, a signal that is generated by means of a digital modulation method is considered as converted to an analog signal, while it is considered as a digital signal in the second case.

Discrete-time signals

main: Discrete signal

An analog signal is a datum that changes over time—say, the temperature at a given location; the depth of a certain point in a pond; or the amplitude of the voltage at some node in a circuit—that can be represented as a mathematical function, with time as the free variable (abscissa) and the signal itself as the dependent variable (ordinate). A discrete-time signal is a sampled version of an analog signal: the value of the datum is noted at fixed intervals (for example, every microsecond) rather than continuously.

If individual time values of the discrete-time signal, instead of being measured precisely (which would require an infinite number of digits), are approximated to a certain precision—which, therefore, only requires a specific number of digits—then the resultant data stream is termed a digital signal. The process of approximating the precise value within a fixed number of digits, or bits, is called quantization.

In conceptual summary, a digital signal is a quantized discrete-time signal; a discrete-time signal is a sampled analog signal.

In the Digital Revolution, the usage of digital signals has increased significantly. Many modern media devices, especially the ones that connect with computers use digital signals to represent signals that were traditionally represented as continuous-time signals; cell phones, music and video players, personal video recorders, and digital cameras are examples.

In most applications, digital signals are represented as binary numbers, so their precision of quantization is measured in bits. Suppose, for example, that we wish to measure a signal to two significant decimal digits. Since seven bits, or binary digits, can record 128 discrete values (viz., from 0 to 127), those seven bits are more than sufficient to express a range of one hundred values.

Waveforms in digital systems

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main: Digital

In computer architecture and other digital systems, a waveform that switches between two voltage levels representing the two states of a Boolean value (0 and 1) is referred to as a digital signal, even though it is an analog voltage waveform, since it is interpreted in terms of only two levels.

The clock signal is a special digital signal that is used to synchronize digital circuits. The image shown can be considered the waveform of a clock signal. Logic changes are triggered either by the rising edge or the falling edge.

Search results for Digital Signal

Digital Signal

Joomla! - the dynamic portal engine and content management system ... © 2009 Digital Signal. Joomla! is Free Software released under the GNU General Public License. ...www.digital-signal.net/

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ALL-DIGITAL TELEVISION IS COMING (AND SOONER THAN YOU THINK!)

Federal Communications Commission ... Do I Need a New One to View the Digital Signals? A special antenna generally is not needed to receive digital signals. ...www.fcc.gov/cgb/consumerfacts/digitaltv.html

The Digital TV Transition: FAQs - Consumer Corner - Digital Transition

Digital Television (DTV) is a new type of broadcasting technology that will ... all or most of your local stations' digital signals if you have a DTV receiver. ...www.dtv.gov/consumercorner.html

Digital television: Definition from Answers.com

digital television ( ′dijədəl ′telə′vizhən ) ( communications ) Television in which picture information is encoded into digital signals on thewww.answers.com/topic/digital-television

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News about Digital Signal

Analog/digital marriage ends; MIPS/Chipidea not a good idea

EETimesMIPS Technologies, Inc. who bought in August, 2007 Chipidea, a Portuguese analog and mixed-signal IP company, has divested its analog business group to Synopsys, Inc. in an all-cash transaction for $22 million. What has gone wrong?http://www.eetimes.com/news/semi/rss/showArticle.jhtml?artic...

Mississippians urged to prepare for digital

The Clarion-LedgerU.S. Sen. Roger Wicker is among those urging Mississippians to get ready for the switch to digital television next month.http://www.clarionledger.com/article/20090508/NEWS/90508004/...

New Belden Brilliance® Low Loss Plenum RG-11 Precision Digital Video Coax Significantly Improves Long-Distance ...

DigitalBroadcastingcomBelden (NYSE: BDC ), a world leader in the development of signal transmission solutions for the enterprise, industrial, building management, broadcast, and security markets, announces the launch of its new and improved Plenum-rated RG-11 Precision Digital Video Coaxial Cable ¿ Product No 7732LLhttp://www.digitalbroadcasting.com/article.mvc/New-Belden-Br...

FCC Coming To Answer Your DTV Questions

WCPO CincinnatiNine events will be held throughout the Tri-State to help you with the digital conversion.http://www.wcpo.com/news/local/story/FCC-Coming-To-Answer-Yo...

FCC Coming To Answer Your DTV Questions

The Kentucky PostNeed help getting your converter box? Have questions about the big switch to Digital Television? The Federal Communications Commission is coming to the Tri-State to answer all your DTV questions.http://www.kypost.com/content/wcposhared/story/FCC-Coming-To...

News about Digital Signal

Digital revolution sparking cable revolt?

Greenwich TimeHe said this is a technological move his company is making. Right now, his company provides a digital signal for customers who want a crisper picture and an analog signal so older TV sets can get programming without the use of a digital converter box ... http://www.greenwichtime.com/ci_12321837?source=most_viewed

Will digital TV shift spark cable revolt?

Danbury News-TimesNow Henderson's old analog TV can't get them unless he gets a box to convert the digital signal into analog. "The jargon drives you nuts," Henderson said after listening to an explanation. "This is just a way to raise their rates." Henderson isn't ... http://www.newstimes.com/ci_12320406

iHome goes upscale with new Studio Series iP1 iPod/iPhone audio system

CNET NewsThe iP1 is equipped with Bongiovi Acoustics Digital Power Station, an active digital signal processor that the company says makes your MP3s sound better and maximizes the performance of the iP1. Here's how iHome describes the feature: When activated ... http://news.cnet.com/8301-17938_105-10236441-1.html

Some Antenna Users May Lose WTAE Over-The-Air

Pittsburgh ChannelWelcome to the digital world. By June 12 antenna TV will be all digital. Viewers using cable or satellite will not be affected. However, viewers who use an antenna to receive WTAE-TV's over-the-air signal, may need to buy a digital set, a UHF or UHF ... http://www.thepittsburghchannel.com/news/19055547/detail.htm...

Former Aikenite making sure region is ready for digital TV

Aiken StandardThey have to switch over to a digital signal from an analog signal on June 12. Nodine's staff of 56 has been traveling the region answering questions and fielding calls and inquiries about the transition. "People know this is coming. This is it ... http://www.aikenstandard.com/Local/0506DTV

Search results for Digital Signal

Digital Signal Corporation

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Digital signal: Information from Answers.com

digital signal A signal in which the original information is converted into a string of bits before being transmittedhttp://www.answers.com/topic/digital-signal

Digital Signal Processing Software - OLPC

Interns - If you are interested in this project, add your name to the Interested interns section below along with a brief description of why you're interested and why you'd be a ... http://wiki.laptop.org/go/Digital_Signal_Processing

Digital Signal © - GPS

Digital Signal provides gps vehicle tracking & recovery systems for North America, Canada & Mexico. Scranton Pennsylvania 570-344-8081http://www.digitalsignal.com/gps.html

Digital signal - What does DS stand for? Acronyms and abbreviations by ...

Acronym Definition; DS: Discover (credit card) DS: Dead Space: DS: Data Storage: DS: Data Source: DS: Data Sheet: DS: Data Set: DS: Data Structure: DS: Data Services: DS: Dark Side ... http://acronyms.thefreedictionary.com/Digital+signal

Wikipedia results for Digital Signal

Digital signal - Wikipedia, the free encyclopedia

The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that have a discrete number of levels, for example a sampled and quantified ... http://en.wikipedia.org/wiki/Digital_signal

Digital signal processor - Wikipedia, the free encyclopedia

A digital signal processor (DSP) is a specialized microprocessor designed specifically for digital signal processing, generally in real-time computing.http://en.wikipedia.org/wiki/Digital_signal_processors

Digital signal processing - Wikipedia, the free encyclopedia

Digital signal processing (DSP) is concerned with the representation of the signals by a sequence of numbers or symbols and the processing of these signals.http://en.wikipedia.org/wiki/Digital_signal_processing

Digital Signal Designation - Wikipedia, the free encyclopedia

Digital Signal Designation is the classification of digital bandwidth used in transport from one location to another in telecommunications.http://en.wikipedia.org/wiki/Digital_Signal_Designation

Digital Signal 0 - Wikipedia, the free encyclopedia

Digital Signal 0 (DS0) is a basic digital signaling rate of 64 kbit/s, corresponding to the capacity of one voice-frequency-equivalent channel. [1]http://en.wikipedia.org/wiki/Digital_Signal_0
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Videos found for Signal

UBS's Magnus Says 'Green Shoots' Do...

UBS's Magnus Says 'Green Shoots' Don't Signal RecoveryGeorge Magnus, senior economic adviser at UBS AG, talks with Bloomberg's Rishaad Salamat about the outlook for economic recovery and the European banking industry.Windows Media - Video

UK Sends ‘Negative Signal:’ Lon...

UK Sends ‘Negative Signal:’ London MayorThe UK government has risked sending out a "powerful negative signal" by hiking the tax rate for top earnings, London Mayor Boris Johnson to...Flash - Video

Alien Speech Found in NASA's Saturn...

Alien Speech Found in NASA's Saturn Radio SignalSpeech patterns have been found in a radio signal released by NASA almost 3 years previously in 2004. Judge for yourself what the voices are saying, it is a very bizarre anomaly...Flash - Video

Signal Hill Blaze Destroys Building

Signal Hill Blaze Destroys BuildingOfficials believe the two-story commercial structure is a total loss. Investigation into the cause of the fire continues. Mia Lee reports.Windows Media - Video

Signal Fire by Snow Patrol

Signal Fire by Snow PatrolSignal Fire music video by Snow Patrol added on 2007-07-01Flash - Video

Answers for Digital Signal

AwesomeDigital Signal?AwesomeThese are signals that simply jump from 0 volts to 5 volts. This is done to create binary words like: 0101010100 1111001010 ... As long as the equipment on both sides know how to decode the si...nickIs it possible to transmit a digital signal through a coaxial cable?nickYou could send only the digital data through a coaxial cable, but you would only have one channel available for the enitre hotel, or you would have to have a lot of expensive cabling and switching for...TeChen HHow can I check whether my LCD monitor is digital or analog signal?TeChen HIf you plug a DVI, (Digital Visual Interface), cable into the DVI port of an LCD monitor, it will be digital. (And plug the other end of the DVI cable, into a DVI port on your computer. Only a dedicat...DrunkenWhy do i have an unusable digital signal?DrunkenI'll bet your ANALOG signal is REAL NOISY....... Which means the Digital signal is just as bad.... FIRST, if you don't already have one....Go to RADIO SHACK and purchase a 20 DB RF amplifier.......koreyWhats the best antenna to get to pick up digital signal?koreyAnything by TERK (Audiovox) I have the model# HDTVA it is the best that i have ever gotten before. You can pick one up at a local best buy. This company knows what they are doing and they have recomme...
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