Read e-book online Understanding Digital Television PDF

By Lars-Ingemar Lundstrom

ISBN-10: 0240809068

ISBN-13: 9780240809069

With the milestones of electronic television and HDTV, there are
lots of inquiries to be requested approximately tv of today...
Understanding electronic tv explains complicated technical structures and strategies in an easy
to understand demeanour besides visible 3D snap shots. It is helping non-technical contributors such as
managers, executives, basic media pros, in addition to television and residential cinema enthusiasts
gain a pragmatic figuring out of the gear, technical elements of electronic tv, and various
ways of dispensing. so much examples are from a eu viewpoint, but in addition contain comparisons
with North American structures. This booklet solutions the complicated questions about new units and
digital codecs, what to do whilst the analog television transmitters are switched off, looking at television utilizing your
broadband connection, and masses more.
*Describes the 4 significant systems of electronic television: satellite tv for pc, cable, terrestrial transmitters
and broadband
*Uses an in depth selection of illustrations to give an explanation for the technical solutions
*Includes precise illustrations and full-color section
*Contains an appendices devoted to North American platforms

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Lars-Ingemar Lundstrom's Understanding Digital Television PDF

With the milestones of electronic television and HDTV, there are
lots of inquiries to be requested approximately tv of this day. ..
Understanding electronic tv explains advanced technical platforms and options in an easy
to understand demeanour besides visible 3D pics. It is helping non-technical contributors such as
managers, executives, normal media pros, in addition to television and residential cinema enthusiasts
gain a pragmatic realizing of the gear, technical elements of electronic tv, and various
ways of dispensing. such a lot examples are from a eu standpoint, but additionally comprise comparisons
with North American structures. This booklet solutions the complicated questions on new units and
digital codecs, what to do while the analog television transmitters are switched off, staring at television utilizing your
broadband connection, and lots more and plenty more.
*Describes the 4 significant systems of electronic television: satellite tv for pc, cable, terrestrial transmitters
and broadband
*Uses an in depth number of illustrations to give an explanation for the technical solutions
*Includes distinct illustrations and full-color section
*Contains an appendices devoted to North American platforms

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Additional info for Understanding Digital Television

Sample text

When transmitting from satellites, the microwave frequency bands, which have much more bandwidth than terrestrial frequency bands, are used. By the end of this chapter, we will take a closer look at how many channels may be transmitted simultaneously from each orbital position of the geostationary orbit. However, there is no use in having a satellite that cannot be controlled from Earth. There also has to be a feed with programs that are transmitted from a ground station. 4). In the satellite, there is a frequency conversion of the incoming signal.

In some cases this may result in a smaller image than one that describes each pixel separately. It is possible to choose the compression level you want for the compressed JPEG file. As a general rule, it is possible to go down to about one-sixth of the original file size without affecting the quality of the picture in a noticeable way. 4). 4, would be considered one chunk of data that can be stored as a much smaller piece of data. Thus it is possible to 25 2 What Is Digital TV? 26 use the fact that some pictures really contain less information than others and to reduce the need for bits and bytes in this way.

Each GOP contains 12 pictures. 5 MPEG algorithms are based on using only the difference in information between the original pictures in the video file. In this example only one of every 12 pictures is saved or transmitted (marked in red). ) 27 2 What Is Digital TV? 28 pictures and this example is only to explain the basic concepts of video encoding. In reality the process is more complicated. In this example there are two GOPs per second. In each GOP, only the first picture is a complete picture.

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Understanding Digital Television by Lars-Ingemar Lundstrom


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