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DVB-T2
DVB-T2
DVB-T2
is an abbreviation for "DIGITAL VIDEO BROADCASTING – SECOND GENERATION TERRESTRIAL"; it is the extension of the television standard DVB-T , issued by the consortium DVB , devised for the broadcast transmission of digital terrestrial television . DVB has been standardized by ETSI . This system transmits compressed digital audio, video, and other data in "physical layer pipes" (PLPs), using OFDM modulation with concatenated channel coding and interleaving. The higher offered bit rate, with respect to its predecessor DVB-T, makes it a system suited for carrying HDTV signals on the terrestrial TV channel (though many broadcasters still use plain DVB-T for this purpose)
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VC-1
SMPTE 421M, informally known as VC-1, is a video coding format . It was initially developed as the proprietary video format Windows Media Video 9 by Microsoft
Microsoft
in 2003 and officially approved as a SMPTE video codec standard on April 3, 2006. It is today a supported standard found in Blu-ray
Blu-ray
Discs , Microsoft's Silverlight framework, and the now-discontinued HD DVD
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MP3
MP3
MP3
(formally MPEG-1
MPEG-1
AUDIO LAYER III or MPEG-2
MPEG-2
AUDIO LAYER III) is an audio coding format for digital audio . Originally defined as the third audio format of the MPEG-1
MPEG-1
standard, it was retained and further extended—defining additional bit rates and support for more audio channels —as the third audio format of the subsequent MPEG-2 standard. A third version, known as MPEG
MPEG
2.5—extended to better support lower bit rates—is commonly implemented, but is not a recognized standard. MP3
MP3
(or MP3) as a file format commonly designates files containing an elementary stream of MPEG-1
MPEG-1
audio and video encoded data, without other complexities of the MP3
MP3
standard
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Dolby Digital
DOLBY DIGITAL is the name for audio compression technologies developed by Dolby Laboratories
Dolby Laboratories
. It was originally named DOLBY STEREO DIGITAL until 1994 . Except for Dolby TrueHD, the audio compression is lossy . The first use of Dolby Digital
Dolby Digital
was to provide digital sound in cinemas from 35mm film prints. It is now also used for other applications such as TV broadcast, radio broadcast via satellite, DVDs , Blu-ray
Blu-ray
Discs and game consoles
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Audio Video Standard
AUDIO VIDEO STANDARD (AVS) is a family of compression standards for digital audio and digital video , competing with AAC audio, and H.264/AVC and HEVC video. Chinese companies own 90% of AVS patents, and require small royalties. The audio and video files typically have an .avs extension. Outside China, it has not seen any commercial use; the Xiph and WebM formats fill a similar niche outside China. All Chinese television broadcasts are in AVS+ since 2014. CONTENTS * 1 Overview * 2 AVS+ * 3 AVS2 * 4 Third-party * 5 References * 6 External links OVERVIEWDevelopment of AVS began in 2002 by the People's Republic of China government, shortly after the ITU H.264 and MPEG AVC working groups merged. Success of the AVS standard would not only reduce China's royalty/licensing payments to foreign companies, it would give China's electronics industry recognition among established Western and Japanese corporations
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H.262/MPEG-2 Part 2
H.262 or MPEG-2
MPEG-2
PART 2 (formally known as ITU-T Recommendation H.262 and ISO/IEC 13818-2, also known as MPEG-2
MPEG-2
VIDEO) is a video coding format developed and maintained jointly by ITU-T Video Coding Experts Group (VCEG) and ISO /IEC Moving Picture Experts Group (MPEG). It is the second part of the ISO/IEC MPEG-2
MPEG-2
standard. The ITU-T Recommendation H.262 and ISO/IEC 13818-2 documents are identical. The standard is available for a fee from the ITU-T and ISO. MPEG-2
MPEG-2
Video is similar to MPEG-1 , but also provides support for interlaced video (an encoding technique used in analog NTSC, PAL and SECAM television systems). MPEG-2
MPEG-2
video is not optimized for low bit-rates (less than 1 Mbit/s), but outperforms MPEG-1 at 3 Mbit/s and above
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Mobile Device
A MOBILE DEVICE, (or HANDHELD COMPUTER), is a computing device small enough to hold and operate in the hand. Typically, the device has a either flatscreen display with a small numeric keypad or alphanumeric keyboard , or a touchscreen providing a virtual keyboard and buttons (icons ) on-screen. Many such devices can connect to the Internet
Internet
and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi
Wi-Fi
, Bluetooth
Bluetooth
or near field communication (NFC). Integrated cameras, digital media players , mobile phone and Global Positioning System (GPS) capabilities are common. Power is typically provided by a lithium battery . Mobile devices may run mobile operating systems that allow third-party apps specialized for said capabilities to be installed and run. Early pocket-sized mobile phones were joined in the late 2000s by larger but otherwise similar tablets
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High Efficiency Video Coding
HIGH EFFICIENCY VIDEO CODING (HEVC), also known as H.265 and MPEG-H PART 2, is a video compression standard , one of several potential successors to the widely used AVC (H.264 or MPEG-4 Part 10). In comparison to AVC, HEVC offers about double the data compression ratio at the same level of video quality, or substantially improved video quality at the same bit rate . It supports resolutions up to 8192×4320, including 8K UHD . In most ways, HEVC is an extension of the concepts in H.264/MPEG-4 AVC. Both work by comparing different parts of a frame of video to find areas that are redundant, both within a single frame as well as subsequent frames. These redundant areas are then replaced with a short description instead of the original pixels
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Dolby Digital Plus
DOLBY DIGITAL PLUS, also known as ENHANCED AC-3 (and commonly abbreviated as DD+ or E-AC-3, or EC-3) is a digital audio compression scheme developed by Dolby Labs
Dolby Labs
for transport and storage of multi-channel digital audio. It is a successor to Dolby Digital (AC-3), also developed by Dolby, and has a number of improvements including support for a wider range of data rates (32 Kbit/s to 6144 Kbit/s), increased channel count and multi-program support (via substreams), and additional tools (algorithms) for representing compressed data and counteracting artifacts. While Dolby Digital (AC-3) supports up to 5 full-bandwidth audio channels at a maximum bitrate of 640 Kbit/s, E-AC-3 supports up to 15 full-bandwidth audio channels at a maximum bitrate of 6.144 Mbit/s
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Radio Frequency
RADIO FREQUENCY (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 7004200000000000000♠20 kHz to 7011300000000000000♠300 GHz , roughly the frequencies used in radio communication . The term does not have an official definition, and different sources specify slightly different upper and lower bounds for the frequency range. RF usually refers to electrical rather than mechanical oscillations. However, mechanical RF systems do exist (see mechanical filter and RF MEMS ). Although radio frequency is a rate of oscillation, the term "radio frequency" or its abbreviation "RF" are used as a synonym for radio – i.e., to describe the use of wireless communication, as opposed to communication via electric wires
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Italy
Coordinates : 43°N 12°E / 43°N 12°E / 43; 12 Italian Republic Repubblica Italiana (Italian ) Flag Emblem ANTHEM: Il Canto degli Italiani (Italian ) "The Song of the Italians" Location of Italy
Italy
(dark green) – in Europe
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Finland
FINLAND (/ˈfɪnlənd/ ( listen ); Finnish : Suomi ( listen ); Swedish : Finland
Finland
), officially the REPUBLIC OF FINLAND (Finnish : Suomen tasavalta, Swedish : Republiken Finland) is a sovereign state in Northern Europe
Europe
. The country has land borders with Sweden
Sweden
to the northwest, Norway
Norway
to the north, and Russia
Russia
to the east. To the south is the Gulf of Finland
Gulf of Finland
with Estonia
Estonia
on the opposite side. Finland
Finland
is a Nordic country and, together with Scandinavia
Scandinavia
, is situated in the geographical region of Fennoscandia
Fennoscandia
. Finland's population is 5.5 million (2016), and the majority of the population is concentrated in the southern region
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Northern Ireland
NORTHERN IRELAND (Irish : Tuaisceart Éireann ( listen ); Ulster-Scots : Norlin Airlann) is a part of the United Kingdom
United Kingdom
in the north-east of the island of Ireland
Ireland
, variously described as a country, province or region. Northern Ireland
Ireland
shares a border to the south and west with the Republic of Ireland
Ireland
. In 2011 , its population was 1,810,863, and down by 1.2 percentage points over the year, similar to the UK figure of 6.2%. 58.2% of those unemployed had been unemployed for over a year. Prominent artists and sportspeople from Northern Ireland
Ireland
include Van Morrison , Rory McIlroy , Joey Dunlop , Wayne McCullough and George Best
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United Kingdom
The UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND, commonly known as the UNITED KINGDOM (UK) or BRITAIN, is a sovereign country in western Europe. Lying off the north-western coast of the European mainland , the UK includes the island of Great Britain
Great Britain
, the north-eastern part of the island of Ireland
Ireland
and many smaller islands. Northern Ireland
Northern Ireland
is the only part of the United Kingdom
United Kingdom
that shares a land border with another sovereign state‍—‌the Republic of Ireland
Ireland
. Apart from this land border, the UK is surrounded by the Atlantic Ocean, with the North Sea
North Sea
to its east, the English Channel
English Channel
to its south and the Celtic Sea to its south-south-west, giving it the 12th-longest coastline in the world
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Super High Frequency
SUPER HIGH FREQUENCY (SHF) is the ITU designation for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz). This band of frequencies is also known as the CENTIMETRE BAND or CENTIMETRE WAVE as the wavelengths range from one to ten centimetres. These frequencies fall within the microwave band, so radio waves with these frequencies are called microwaves. The small wavelength of microwaves allows them to be directed in narrow beams by aperture antennas such as parabolic dishes , so they are used for point-to-point communication and data links and for radar . This frequency range is used for most radar transmitters, wireless LANs , satellite communication , microwave radio relay links, and numerous short range terrestrial data links. Wireless USB
Wireless USB
technology is anticipated to use approximately one-third of this spectrum
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European Telecommunications Standards Institute
The EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE (ETSI) is an independent, not-for-profit, standardization organization in the telecommunications industry (equipment makers and network operators) in Europe
Europe
, headquartered in Sophia-Antipolis , France
France
, with worldwide projection. ETSI
ETSI
produces globally-applicable standards for Information and Communications Technologies (ICT), including fixed, mobile, radio, converged, broadcast and internet technologies. ETSI
ETSI
was created by CEPT in 1988 and is officially recognized by the European Commission
European Commission
and the EFTA secretariat. Based in Sophia Antipolis ( France
France
), ETSI
ETSI
is officially responsible for standardization of Information and Communication Technologies (ICT) within Europe
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