electromagnetic waves (rather than some form of wire) carry the signal over part or all of the communication path. 2. What is a frequency-shift-keying system? Describe two methods of generating FSK. Frequency-shift keying (FSK) is a method of transmitting digital signals. 6. Explain a method used to generate BPSK using Figure 10-5 as a basis. Need for modulation 1) to reduce the antenna height 2) to multiplex the more number of signals 3) to reduce the noise & distortions 4) to narrow banding the signal 8
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iPod Product Background The name iPod refers to a category of portable digital audio players designed and marketed by Apple Computer. It is an exceptionally popular‚ portable digital music player that stores up to 10‚000 songs on its 40GB hard disk. The earlier versions of iPod were only able to function as music players. Currently‚ it also includes features such as storing addresses‚ games and calendar. The iPod was originally developed for Mac computers but software was introduced in 2002 to
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books that have been mostly available in hard copy. He knows that there are books on CD‚ but these are relatively expensive and have been recorded using human readers. He also knows that there is technology that can transform the printed word into audio‚ but the sound is somewhat inhuman. Will plans on speeding up the transformation with a proprietary technology he has developed and patented. This technology takes the printed word for text materials and creates a file with the option of reading it
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Brief History of Canon Cameras | | | | | | 1933. Goro Yoshida and his brother-in-law‚ Sabura Uchida‚ founded the Precision Optical Instruments Laboratory. The goal: to make cameras to compete with the most advanced German models of the day. 1934. Japan’s first domestically-made 35mm focal-plane shutter camera‚ the "Kwanon’ -- named after the Buddhist Goddess of Mercy. 1935. "Canon" trademark registered. 1935. Hansa Canon cameras offered for sale at half the price of a Leica.
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Executive Summary The purpose of this report is to develop an understanding of how the digital camera industry operates in today’s society as well as several factors‚ which influence consumer behaviour in the buying process. This report uses Canon Inc as an illustration along with the discussion of each topic. Firstly‚ this report will discuss the background and size of the digital camera industry. The digital camera industry is getting bigger with the technological advancements in society today
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(Accessed 11 22‚ 2011). Dpreview.com. Canon EOS 550D. http://www.dpreview.com/previews/canoneos550d/ (Accessed 11 16‚ 2011). Gordon Laing. CAMERA LABS. 2005-2011. http://www.cameralabs.com/reviews/Nikon_D90/ (Accessed 11 18‚ 2011). NeoEase. Daily Digital Camera News. 2008-2011. http://www.aperturedaily.com/canon-eos-550d-rebel-t2i-jackie-chan-edition/ (Accessed 11 18‚ 2011). Photoprice.ca. Photo equipment prices for Canadians. 2011. http://www.photoprice.ca/product/02949/Nikon-D90-with-18-105-VR-Kit-price
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DETERMINATION OF ABCESSION SIZE USING DIGITAL IMAGE PROCESSING TO AIDE ENDODONTIC THERAPY Karthikeyan Karunakaran‚ Nikil Ravi‚ Srinevasan MS Abstract-- Endodontic therapy is a treatment where the infected tooth s cavity is removed completely and filled with gutta-percha .During this therapy the size of the abscission in the root apex is important. If the abscission size is small the dentists call them lesion which can be easily removed during the therapy itself. But if it is large‚ the therapy
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Indicate some significant differences between broadcast radio and microwave. 7.What is the difference between diffraction and scattering? 8.List and briefly define important factors that can be used in evaluating or comparing the various digitial-to-digital encoding techniques. 9.What function doeas a modem perform? 10.What is QAM? Differentiate between guided media and unguided media Guide media is that where we use any path for communication like cables (coaxial‚ fiber optic‚ twisted pair) etc
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retrieve information. Technological advances in this field have changed lifestyles around the world and spawned new industries around controlling and providing information. Digital Revolution The Digital Revolution is a recent term describing the effects of the rapid drop in cost and rapid expansion of power of digital devices such as computers and telecommunications (e.g mobile phones). It includes changes in technology and society‚ and is often specifically used to refer to the controversies
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Digital modulation differents kind and aplications form them. Digital Modulation Techniques The techniques used to modulate digital information so that it can be transmitted via microwave‚ satellite or down a cable pair are different to that of analogue transmission. The data transmitted via satellite or microwave is transmitted as an analogue signal. The techniques used to transmit analogue signals are used to transmit digital signals
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