
Nokia Corporation (pronunciation Finnish: [nɔkiɑ]) (OMX: NOK1V, NYSE: NOK, FWB: NOA3) is a Finnish multinational communications corporation, which Keilaniemi, Espoo, a city near the capital Helsinki Finland seat. Nokia is active in the production of mobile devices and in the converging Internet and communications industries, with more than 123,000 employees in 120 countries, sales in over 150 countries worldwide and has annual turnover of 41 billion euros and operating profit of € 1200000000 in 2009. It is the world's largest manufacturer of mobile telephones: its global device market share was 30% in the third quarter of 2010, against about 34% in the third quarter of 2009 and an estimated 33% in the second quarter of 2010 the estimated rate of Nokia has been the convergence mobile device market by 38% the third quarter, compared to 41% in the second quarter of 2010. Nokia produces mobile devices for all major market segments and protocol, including GSM, CDMA and W-CDMA (UMTS). Nokia Internet services such as applications, games, music, cards, media and messaging platform with its Ovi. Nokia Siemens Networks subsidiary provides network telecommunications equipment, solutions and services. Nokia is also involved in the provision of free digital maps and navigation through its wholly owned subsidiary Navteq.
3GP (3GPP file format) is a multimedia container format by the Third Generation Partnership Project (3GPP) for UMTS 3G multimedia services defined. It is based on 3G mobile phones in use, but can be played on some 2G and 4G phones.
3G2 (3GPP2 file format) is a multimedia container format defined by the 3GPP2 CDMA2000 for 3G multimedia services. It is very similar to the 3GPP file format, but has some extensions and restrictions with respect to 3GP.
3GP is defined in ETSI 3GPP Technical Specification. 3GP file format required for video and associated speech / audio media types and ETSI 3GPP Timed Text is the technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS), Multimedia Broadcast / Multicast Service (MBMS) and transparent end to end packet-switched Streaming Service (PSS
3G2 is defined in the 3GPP2 Technical Specification
MPEG-4 is a collection of methods defining compression of audio and video (AV) digital data. It was introduced in late 1998 and designated a standard for a group of technology audio and video coding formats and related ISO / IEC Moving Picture Experts Group (MPEG) (ISO / IEC JTC1/SC29/WG11) in under the formal standard ISO / IEC 14496 - Coding of audio-visual objects. The use of MPEG-4 data is audio-video for the web (streaming media) and CD distribution, voice (telephone, videophone) and broadcast applications.
MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) support for VRML 3D rendering, object-oriented composite files (including audio, video and VRML objects), support outside specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Coding) was published as a supplement to the MPEG-2 (as Part 7) before MPEG-4 was standardized.
MPEG-4 standard is still a developing country and is divided into several parts. Companies promoting MPEG-4 compatibility do not always specify clearly what level of compatibility "party", they refer. knowledge of important parts of being, are MPEG-4 Part 2 (including Advanced Simple Profile used by codecs such as DivX, Xvid, Nero Digital and 3ivx and Quicktime 6 jobs) and MPEG-4 Part 10 (MPEG- 4 AVC / H 0.264, or Advanced Video Coding, which uses the x264 encoder Nero Digital AVC, by Quicktime 7, and high definition video sources Blu-ray Disc).
Most features of MPEG-4 developers to decide if they are implemented. That means it's probably not a complete implementation of MPEG-4 full set of standards.
Originally, MPEG-4, especially at low communication bit rate video goals, but its scope as multimedia coding standard was later extended. MPEG-4 is effective in a variety of flow rates of a few kilobits per second to ten megabits per second. MPEG-4 offers the following features:
The Methodology of MPEG considered asymmetric encoder is more complex than the encoder decoder decoder. The algorithmic and adaptation in the "stupid" and it takes strong measures. This is considered advantageous, such as broadcasting, where the number of expensive complex encoder is small, but the number of decoders, low-cost way is great in applications. MPEG (ISO) standard-setting approach is novel because it is not the encoder that is standardized, but how a decoder interprets the bitstream. A decoder can correctly interpret the bitstream is compliant. The advantage of standardization is the decoder which over time can improve the algorithms for encryption, but compatible decoder will continue to work with the MPEG car sharing is very little information on the structure and operation of the encoder and practitioners can Encoder power delivered by proprietary algorithms [9]. The space available for competition between different encoder developed that can develop a better design and users have more choices because the encoder can be different levels of cost and complexity, but it is a compatible decoder works with each of them.
MPEG also standardized protocol and syntax in which it is possible to combine or multiplex audio data with video data with a digital equivalent of a television. Many of these programs can be multiplexed MPEG and defines how the multiplexes can be created and transported. The definitions include metadata decoders are used to demultiplex correctly.
The Moving Picture Experts Group (MPEG) is a working group of experts established in ISO and IEC, has been setting standards for compressing audio and video transmission in 1988 and its first meeting in May 1988 in Ottawa, Canada established. In late 2005, MPEG has grown to approximately 350 members involved in each meeting of various industries, universities and research institutes. MPEG official designation ISO / IEC JTC1/SC29 WG11 - Coding of moving pictures and audio (ISO / IEC Joint Technical Committee 1, Subcommittee 29, Working Group 11)