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| | Digital signal processing - Encyclopedia.WorldSearch |
 | | The continuous signal is usually sampled at regular intervals by an Analog to digital converter and the value of the continuous signal in that interval is represented by a discrete value. | | | The target of the signal processing is often another analog output signal which requires a digital to analog converter for translation. | | | DSP and analog signal processing are subsets of signal processing. |
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http://encyclopedia.worldsearch.com/digital_signal_processing.htm
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| | Signal (information theory) - Wikipedia, the free encyclopedia |
| | The two main types of signals are analog and digital. | | | In short, the difference between them is that digital signals are discrete and quantized, as defined below, while analog signals possess neither property. | | | As a result, the values of such a signal are restricted to belong to a finite set; in other words, it is quantized. |
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http://en.wikipedia.org/wiki/Signal_(information_theory)
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| | Digital signal processing - Wikipedia, the free encyclopedia |
| | In order to use an analog signal on a computer it must be digitized with an analog to digital converter (ADC). | | | Since the goal of DSP is usually to measure or filter continuous real-world analog signals, the first step is usually to convert the signal from an analog to a digital form, by using an analog to digital converter. | | | Often, the required output signal is another analog output signal, which requires a digital to analog converter. |
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http://en.wikipedia.org/wiki/Digital_signal_processing
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| | Digital signal processing - Wikipedia, the free encyclopedia |
| | In order to use an analog signal on a computer it must be digitized with an analog to digital converter (ADC). | | | Since the goal of DSP is usually to measure or filter continuous real-world analog signals, the first step is usually to convert the signal from an analog to a digital form, by using an analog to digital converter. | | | Often, the required output signal is another analog output signal, which requires a digital to analog converter. |
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http://en.wikipedia.org/wiki/Digital_signal_processing
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| | Analog - Wikipedia, the free encyclopedia |
| | analog television, a television that uses an analog signal | | | analog circuit, an electronic circuit using a continuously variable signal | | | analog computer, a computer that uses electrical or mechanical phenomena |
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http://en.wikipedia.org/wiki/Analog
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| | Analog_computer - Computers - Find What You're Looking For |
| | There is an intermediate group, hybrid computers, in which a digital computer is used to control and organize inputs and outputs to and from attached analogue devices; for instance analogue devices might be used to help generate initial values for iterations, or the analog computer might be used to solve a non-analytic differential equation problem. | | | An analog computer (American English) or analogue computer (British English) is a form of computer using electronic or mechanical phenomena to model the problem being solved by using one kind of physical quantity to represent another. | | | Analog synthesizers can also be viewed as a form of analog computer, and their technology was originally based on electronic analog computer technology. |
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http://computers.mysic.org/Analog_computer
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| | The Rebirth of Computer Music by Analog Signal Processing |
| | Digital computers and music synthesizers displaced their analog counterparts for a good and practical reason: It was cheaper to exploit developments in component and integration technologies with digital signal processing rather than analog techniques. | | | With analog systems, conversely the problems and systems cost associated with connecting computing nodes are minor compared to those associated with designing the basic computing elements to meet performance requirements in the areas of component parameter spread, signal/noise ratio, distortion and crosstalk. | | | An analog signal processing architecture is proposed consisting of a memoryless, multidimensional nonlinear function generator, a linear time-invariant system simulator, a non-volatile store, and interface, calibration, and control modules. |
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http://www.cnmat.berkeley.edu/~adrian/ICMC1994.html
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| | FDI DSP - Digital Signal Processing - Design Guide |
| | It is important to note that distortion and noise can be introduced into digital filters simply by the conversion of analog signals into digital data, also by the digital filtering process itself and lastly by conversion of processed data back into analog. | | | A digital filter computes a quantized time-domain representation of the convolution of the sampled input time function and a representation of the weighting function of the filter. | | | Simply said, the digitized input signal is mathematically influenced by the DSP program. |
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http://www.freqdev.com/guide/dspguide.html
(3338 words)
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| | Signal - definition of Signal in Encyclopedia |
| | Signals carry information: Analog signals are continuous while digital signals are discrete (see signal processing and noise (physics)). | | | (in electronics) a signal is any physical phenomenon that can be modeled as a function from time or position. | | | In economics, a signal describe a way of credibly conveying information from one party to another. |
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http://encyclopedia.laborlawtalk.com/Signal
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| | signal - a Whatis.com definition |
| | Signal modulation can be done in either of two main ways: analog and digital. | | | There are still plenty of analog signals around, however, and they will probably never become totally extinct. | | | 1) In electronics, a signal is an electric current or electromagnetic field used to convey data from one place to another. |
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http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci212986,00.html
(279 words)
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| | Analog computer - Wikipedia, the free encyclopedia |
| | An analog signal is composed of four basic components: DC and AC magnitudes, frequency, and phase. | | | Analog synthesizers can also be viewed as a form of analog computer, and their technology was originally based on electronic analog computer technology. | | | There is an intermediate device, a hybrid computer, in which a digital computer is combined with an analog computer. |
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http://en.wikipedia.org/wiki/Analog_computer
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| | Digital Recording Techniques |
| | The difference between the instantaneous analog signal and de digital representation is digital error. | | | In the simplest case, the word digital refers to the representation of a quantity in numerical form and analog refers to a continuous physical quantity. | | | Digital techniques for storing and transmission of audio signals are attractive because they offer high quality signals, which do not deteriorate with transmission distance, number of copies or time. |
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http://www.digital-recordings.com/publ/pubrec.html
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| | Analog - definition of Analog in Encyclopedia |
| | The primary disadvantage of analog signalling is that any system has noise—that is, random variations—in it. | | | Analog is usually thought of in an electrical context, however mechanical, pneumatic, hydraulic, and other systems may also use analog signals. | | | Any information may be conveyed by an analog signal, often such a signal is a measured response to changes in physical phenomena, such as sound, light, temperature, position, or pressure, and is achieved using a transducer. |
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http://encyclopedia.laborlawtalk.com/Analog
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| | Define digital signal processing - a definition from Whatis.com - see also: DSP |
| | This is true whether the signals are analog or digital, and regardless of the type of information conveyed. | | | If an incoming signal is analog, for example a standard television broadcast station, the signal is first converted to digital form by an analog-to-digital converter (ADC). | | | If a received signal is digital, for example computer data, then the ADC and DAC are not necessary. |
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http://whatis.techtarget.com/definition/0,,sid9_gci213898,00.html
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| | What is digital? - A Word Definition From the Webopedia Computer Dictionary |
| | Although digital representations are approximations of analog events, they are useful because they are relatively easy to store and manipulate electronically. | | | Internally, computers are digital because they consist of discrete units called bits that are either on or off. | | | When you play a compact disc, the CD player reads the digital data, translates it back into its original analog form, and sends it to the amplifier and eventually the speakers. |
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http://www.webopedia.com/TERM/D/digital.html
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| | Digital signal processing - Open Encyclopedia |
| | The continuous signal is usually sampled at regular intervals by an Analog to digital converter and the value of the continuous signal in that interval is represented by a discrete value. | | | DSP and analog signal processing are subsets of signal processing. | | | The target of the signal processing is often another analog output signal which requires a digital to analog converter for translation. |
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http://open-encyclopedia.com/Digital_signal_processing
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| | Brain as an Analog Computer |
| | Analog computers use circuits that compute in real time. | | | Each neuron is a computer in its own right and may have the signal-processing value of hundreds or thousands of transistors in a digital computer. | | | A tape recording is an analog record that stores a waveform analogous to sound waves or electronic waves generated by sound interacting with a microphone. |
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http://www.nutramed.com/Philosophy/analog_computer.htm
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| | TAPR Digital Signal Processing |
| | Digital representation of signals over their analog counterparts have many advantages. | | | Digital Signal Processing is so pervasive in everything an amateur radio operator does and it is becoming an important tool. | | | ALEF NULL DSP4 The DSP4 card is a product of the Alef Null group and is a general purpose signal processing card, dedicated mainly to the amateur use. |
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http://www.tapr.org/dsp
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| | allelectronicswholesale.com |
| | The CD-sized, digital laser-video format that is replacing the old analog laser-video system and may replace the CD as an advanced surround-sound audio-only format. | | | An electrical circuit designed to delay the output of a given input signal a fixed amount, usually for the purpose of adding a synthesized ambience to the program., This is done in the studio to add artificial reverb to a program and can also be done at home with a surround-sound processor. | | | A designation found on some compact discs, indicating that the program was recorded with an analog recorder, edited in the digital domain, and transferred to the digital medium for playback. |
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http://www.plasma-wholesalers.com/shop/glossary.asp
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| | Analog Devices, Inc. - Vendor Home |
| | Analog Devices, Inc. (NYSE: ADI) is a world-leading semiconductor company specializing in high-performance analog, mixed-signal and digital signal processing (DSP) integrated circuits (ICs). | | | For the latest information on Analog Devices products and design solutions, delve into their Solutions Bulletins publication series. | | | There are wafer fabrication facilities using high-performance analog manufacturing processes in Massachusetts, California and Ireland. |
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http://dkc1.digikey.com/us/mkt/vendors/505.html
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| | Analog hole - Wikipedia, the free encyclopedia |
| | When the information is converted to a perceptible analog form, there are no restrictions on the resulting analog signal, and the content can be captured back into digital form with no restrictions. | | | The analog hole (sometimes analog reconversion problem or analog reconversion issue) is a fundamental vulnerability in copy prevention schemes for noninteractive digital content which is intended to be played back using analog means. | | | Although the technical possibility of making digital recordings from analog outputs has existed for some time, it was not necessarily viewed as a "hole" before widespread deployments of DRM in the late 1990s. |
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http://www.wikipedia.org/wiki/Analog_Hole
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| | Digital Signal Sources |
| | Digital signal sources must be fed thru Digital To Analog Converters then to linear analog amplifiers in order to be heard on a loudspeaker. | | | It is very important for "Digital" radio receivers to be equipped with either a Pure Digital Power Amplifier or at the minimum a digital audio output so that consumers will not be closed out using the receiver as a digital signal source for their pure digital audio system. | | | Pure digital amplifiers break thru this last remaining weak link in the audio signal chain and make it possible to keep the audio in a digital state all the way thru the amplifier. |
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http://www.puredigitalaudio.org/sourcematerial/index.shtml
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| | Digital Television: An Overview |
| | Stations are also prohibited from operating an analog signal on its designated digital channel. | | | Because DTV signals cannot be received through the existing analog television broadcasting system (known as NTSC (7)) the FCC decided to phase in DTV over a period of years, so that consumers would not have to immediately purchase new digital television sets or converters. | | | Consumers can continue to use analog TV sets until the broadcasters return the analog TV licenses to the FCC, after which, a set-top digital converter box could be used to enable the analog TV set to receive the DTV signal. |
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http://www.thememoryhole.org/crs/more-reports/RL31260.htm
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| | THE BASICS OF DIGITAL TELEVISION |
| | Hollywood is even asking the FCC to eliminate the “analog hole” – the ability for someone to take an HDTV signal from a set-top receiver’s analog component outputs and digitize it for copying and distribution over the Internet. | | | DTV signals also hold up better at much lower levels than analog. | | | Analog TV uses an amplitude-modulated (AM) signal for pictures and frequency modulation (FM) for audio, while DTV signals use digital "packets", or bursts of data, to transmit pictures and audio. |
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http://www.avsforum.com/hdtvfaq/HDTV-FAQ.htm?HDPictures.com
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| | sts3700b: Lecture Number 20a |
| | This computer is significant in the history not only of analog computation but also of the formulation of simulation techniques. | | | The analog computer is programmed by interconnecting the various arithmetic units in such a way that the desired problem will be solved. | | | For a start, all operations in an analog computer are performed in parallel, and secondly, data is represented in an analog computer as voltages, a very compact but not necessarily robust form of data. |
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http://www.yorku.ca/sasit/sts/sts3700b/lecture20a.html
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| | Introduction to Digital Signal Processing |
| | In many cases, the signal of interest is initially in the form of an analog electrical voltage or current, produced for example by a microphone or some other type of transducer. | | | The development of digital signal processing dates from the 1960's with the use of mainframe digital computers for number-crunching applications such as the Fast Fourier Transform (FFT), which allows the frequency spectrum of a signal to be computed rapidly. | | | The processing of a digital signal is done by performing numerical calculations. |
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http://www.dsptutor.freeuk.com/intro.htm
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| | Clare And Analog Devices To Develop High Voltage Technology |
| | Analog Devices now leverages over ten years of MEMS experience by integrating advanced signal processing circuits to the optical MEMS structures, thereby adding significant functionality to the devices. | | | With revenues of $772 million for the first quarter of fiscal 2001, Analog Devices is a leading manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. | | | In 2000, Analog Devices acquired BCO Technologies a pioneer in developing and manufacturing bonded wafers based on single-crystal SOI technology (silicon on insulator) that are used for fabricating silicon-based MEMS optical switches. |
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http://www.clare.com/home/press.nsf/0/5e601390fc6dfeb685256a29006863c8?open
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| | digital signal processing - a Whatis.com definition - see also: DSP |
| | This is true whether the signals are analog or digital, and regardless of the type of information conveyed. | | | If an incoming signal is analog, for example a standard television broadcast station, the signal is first converted to digital form by an analog-to-digital converter (ADC). | | | If a received signal is digital, for example computer data, then the ADC and DAC are not necessary. |
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http://whatis.techtarget.com/definition/0,,sid9_gci213898,00.html
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| | Analog Devices And Intel Introduce Jointly Developed DSP Architecture |
| | With revenues of $2.58 billion for fiscal 2000, Analog Devices is a leading manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. | | | NEW YORK, Dec. 5, 2000 - Intel Corporation and Analog Devices, Inc. today introduced a new architecture that incorporates digital signal processor (DSP) and microcontroller features in a single platform. | | | Intel and Analog Devices are currently working with leading tools providers, designers and software vendors to create tools, real-time operating systems and algorithms to support the new core. |
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http://www.intel.com/pressroom/archive/releases/em120500a.htm
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| | Digital Signal Processor - Model 2060 - CANBERRA, An AREVA Group Company |
| | This reduces noise effects while making possible the use of more efficient and sophisticated filtering algorithms than can be achieved in the analog domain. | | | With traditional analog signal processing, the detector signal is amplified, shaped, filtered and baseline restored by the shaping amplifier. | | | Digital filter parameters are automatically set to emulate resolution performance of the equivalent analog Gaussian filters. |
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http://www.canberra.com/products/652.asp
(703 words)
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