By Amitabh Kumar ZHU
Completely devoted to cellular television, this ebook presents an in depth perception to cellular multimedia characterised effective compression recommendations, protocols formalized via 3GPP or 3GPP2, services of broadcast, and cellular networks for providing multimedia content material. community standards resembling spectrum; chipsets, software program and handsets which permit multimedia prone; supply systems and content material defense applied sciences which offer profit insurance are coated intimately. Written with a world point of view, this publication takes an in depth examine the networks deployed around the globe with examples and is wealthy in diagrams offering outstanding visualization of the hot technologies.* an entire creation and assessment of cellular multimedia, cellular television, and multimedia networks all over the world* contains multimedia providers for streaming, reside television, downloads, MMS, VoD within the cellular setting* Describes allowing applied sciences and protocols reminiscent of MPEG-4, H.264, AAC+,3GPP-PSS and 3G-324M* specified chapters on DVB-H, DMB and 3G applied sciences for cellular television* content material protection, conditional entry and DRM for the cellular global* Handset good points for cellular television and multimedia prone"
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Solely devoted to cellular television, this ebook offers a close perception to cellular multimedia characterised effective compression concepts, protocols formalized by means of 3GPP or 3GPP2, services of broadcast, and cellular networks for supplying multimedia content material. community specifications equivalent to spectrum; chipsets, software program and handsets which permit multimedia prone; supply structures and content material security applied sciences which supply profit coverage are lined intimately.
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Extra info for Mobile TV: DVB-H, DMB, 3G Systems and Rich Media Applications
In the Third Generation (3G) world, which is characterized by the need to use bandwidth efficiently to accommodate thousands of users in a cell area, file formats based on cellular industry standards such as 3GPP (Third Generation Partnership Project) are commonly used. In order to reduce bandwidth 1 ABOUT MOBILE TV 7 further and based on transmission conditions, cellular networks may also reduce the frame rates or render frames with a lower number of bytes per frame. However, reducing the bit rates needed to deliver video is not the only characteristic of mobile TV services.
There are a number of formats that have become common as a requirement for carrying video at lower bit rates and for lower resolutions. One of the early formats was the CIF (common interchange format), which was needed for applications such as videoconferencing that connect across national borders. As the Integrated Subscriber Digital Network (ISDN) lines supported only 64–128 kbps, full-screen resolution could not be supported. 261 video conferencing standard, for example, uses the CIF and quarter CIF (QCIF) resolutions.
As the human eye perceives color details at lower acuity than luminance, the bandwidth of the color signals is kept lower than that of luminance. 5 MHz. 2 MHz (Fig. 2-12). 1 Analog Video Historically video has been handled in an analog format, a practice that continues today. While there was a move to complete the digitization of TV by 2006 in the United States, by 2012 in Europe, and by later dates in other countries, the receivers in most countries continue to remain analog. The NTSC standard is used in the United States, Japan, Canada, Taiwan, and Central America, among others.