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Sat-IP
SAT>IP (or Sat-IP) specifies an IP-based client–server communication protocol for a TV gateway in which SAT>IP servers, connected to one or more DVB broadcast sources, send the program selected and requested by an SAT>IP client over an IP based local area network in either unicast for the one requesting client or multicast in one datastream for several SAT>IP clients. While the system, originating from the DBS satellite operator SES, is originally geared towards receiving and distributing satellite broadcasts in DVB-S or DVB-S2 encoding, SAT>IP also specifies formats for the SAT>IP client request to specify programs broadcast via DVB-C and DVB-T. Only the SAT>IP servers need tuning hardware and software specific to the DVB-broadcast system(s) being used; SAT>IP clients can be any IP-enabled client multimedia device – Tablets, PCs, laptops, Smartphones, “connected” TVs, video game consoles, media players or others. The main difference of S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sat-IP Logo
SAT>IP (or Sat-IP) specifies an IP-based client–server communication protocol for a TV gateway in which SAT>IP servers, connected to one or more DVB broadcast sources, send the program selected and requested by an SAT>IP client over an IP based local area network in either unicast for the one requesting client or multicast in one datastream for several SAT>IP clients. While the system, originating from the DBS satellite operator SES, is originally geared towards receiving and distributing satellite broadcasts in DVB-S or DVB-S2 encoding, SAT>IP also specifies formats for the SAT>IP client request to specify programs broadcast via DVB-C and DVB-T. Only the SAT>IP servers need tuning hardware and software specific to the DVB-broadcast system(s) being used; SAT>IP clients can be any IP-enabled client multimedia device – Tablets, PCs, laptops, Smartphones, “connected” TVs, video game consoles, media players or others. The main difference of SAT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sat-IP Channel
SAT>IP (or Sat-IP) specifies an IP-based client–server communication protocol for a TV gateway in which SAT>IP servers, connected to one or more DVB broadcast sources, send the program selected and requested by an SAT>IP client over an IP based local area network in either unicast for the one requesting client or multicast in one datastream for several SAT>IP clients. While the system, originating from the DBS satellite operator SES, is originally geared towards receiving and distributing satellite broadcasts in DVB-S or DVB-S2 encoding, SAT>IP also specifies formats for the SAT>IP client request to specify programs broadcast via DVB-C and DVB-T. Only the SAT>IP servers need tuning hardware and software specific to the DVB-broadcast system(s) being used; SAT>IP clients can be any IP-enabled client multimedia device – Tablets, PCs, laptops, Smartphones, “connected” TVs, video game consoles, media players or others. The main difference of SAT&g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DiSEqC
DiSEqC (; short for Digital Satellite Equipment Control) is a special communication protocol for use between a satellite receiver and a device such as a multi-dish switch or a small dish antenna rotor. DiSEqC was developed by European satellite provider Eutelsat, which now acts as the standards agency for the protocol. History Eutelsat apparently developed the system to allow satellite users in Continental Europe to switch between the more popular SES Astra satellites at 19.2° east and Eutelsat's own Hot Bird system at 13° east. As a result, the vast majority of European satellite receivers support DiSEqC 1.0 or higher, with the exception of all set top boxes manufactured under the Sky Digibox name. All supporting receivers have received certification to carry a logo specifying which variation of DiSEqC they support. Protocol DiSEqC relies only upon a coaxial cable to transmit both bidirectional data/signals and power. DiSEqC is commonly used to control switches and motors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IP-TV
Internet Protocol television (IPTV) is the delivery of television content over Internet Protocol (IP) networks. This is in contrast to delivery through traditional terrestrial, satellite, and cable television formats. Unlike downloaded media, IPTV offers the ability to stream the source media continuously. As a result, a client media player can begin playing the content (such as a TV channel) almost immediately. This is known as streaming media. Although IPTV uses the Internet protocol it is not limited to television streamed from the Internet (Internet television). IPTV is widely deployed in subscriber-based telecommunications networks with high-speed access channels into end-user premises via set-top boxes or other customer-premises equipment. IPTV is also used for media delivery around corporate and private networks. IPTV in the telecommunications arena is notable for its ongoing standardisation process (e.g., European Telecommunications Standards Institute). IPTV service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuner (radio)
A tuner is a subsystem that receives radio frequency (RF) transmissions, such as FM broadcasting, and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output. Broadcast FM/ AM transmissions usually feed this intermediate frequency (IF) directly into a demodulator that converts the radio signal into audio-frequency signals that can be fed into an amplifier to drive a loudspeaker. More complex transmissions like PAL/NTSC (TV), DAB (digital radio), DVB-T/ DVB-S/ DVB-C (digital TV) etc. use a wider frequency bandwidth, often with several subcarriers. These are transmitted inside the receiver as an intermediate frequency (IF). Subcarriers are then processed like real radio transmissions, but the whole bandwidth is sampled with an analog-to-digital converter (A/D) at a rate faster than the Nyquist rate (that is, at least twice the IF frequency). A t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NAB Show
NAB Show is an annual trade show produced by the National Association of Broadcasters. It takes place in April, and has been held since 1991 at the Las Vegas Convention Center in Las Vegas, Nevada. The show's tagline is "Where Content Comes to Life". NAB show is the largest show for media, entertainment and technology. The NAB shows covers: broadcast TV, radio, production, post production, news gathering, streaming, cable TV, satellite TV, film restoration, data storage, data management, weather forecasting, industrial TV, FX, CGI, connected media, cybersecurity and more. NAB had 103,000 attendees from 161 countries and more than 1,806 exhibitors in 2016. There are also exhibitors in Las Vegas hotels not counted in the official convention center displays. In addition to the exhibitors' booths, there are lectures, panel discussions and workshops. In 2017, there will be over 200 of these sessions. Before 1991 the show had moved around to a number of cities: Atlanta (1990), Washing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSkyB
Sky UK Limited is a British broadcaster and telecommunications company that provides television and broadband Internet services, fixed line and mobile telephone services to consumers and businesses in the United Kingdom. It is a subsidiary of Sky Group and from 2018 onwards, part of Comcast. It is the UK's largest pay-TV broadcaster with 12.7 million customers as of the end of 2019 for its digital satellite TV platform. Sky's flagship products are Sky Q and the internet-based Sky Glass, and its flagship channels are Sky Showcase, Sky Sports and Sky Atlantic. Formed as British Sky Broadcasting (BSkyB) in November 1990 through the merger of Sky Television and British Satellite Broadcasting, it grew into a major media company by the end of the decade, notably owning all the television broadcasting rights for the Premier League and almost all the domestic rights of Hollywood films. Following BSkyB's acquisition of Sky Italia and a majority interest in Sky Deutschland in 2014, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free-to-air
Free-to-air (FTA) services are television (TV) and radio services broadcast in unencrypted form, allowing any person with the FTA Receiver, appropriate receiving equipment to receive the signal and view or listen to the content without requiring a Pay television, subscription, other ongoing cost, or one-off fee (e.g., pay-per-view). In the traditional sense, this is carried on Radio, terrestrial radio signals and received with an antenna. FTA also refers to channels and broadcasters providing content for which no subscription is expected, even though they may be delivered to the viewer/listener by another carrier for which a subscription is required, e.g., cable television, the Internet, or satellite television, satellite. These carriers may be mandated (or OPT) in some geographies to deliver FTA channels even if a premium subscription is not present (providing the necessary equipment is still available), especially where FTA channels are expected to be used for emergency broadcas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Set-top Box
A set-top box (STB), also colloquially known as a cable box and historically television decoder, is an information appliance device that generally contains a TV-tuner input and displays output to a television set and an external source of signal, turning the source signal into content in a form that can then be displayed on the television screen or other display device. They are used in cable television, satellite television, and over-the-air television systems as well as other uses. According to the ''Los Angeles Times'', the cost to a cable provider in the United States for a set-top box is between $150 for a basic box to $250 for a more sophisticated box. In 2016, the average pay-TV subscriber paid $231 per year to lease their set-top box from a cable service provider. TV signal sources The signal source might be an Ethernet cable, a satellite dish, a coaxial cable (see cable television), a telephone line (including DSL connections), broadband over power lines (BPL), or e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coaxial
In geometry, coaxial means that several three-dimensional linear or planar forms share a common axis. The two-dimensional analog is ''concentric''. Common examples: A coaxial cable is a three-dimensional linear structure. It has a wire conductor in the centre (D), a circumferential outer conductor (B), and an insulating medium called the dielectric (C) separating these two conductors. The outer conductor is usually sheathed in a protective PVC outer jacket (A). All these have a common axis. The dimension and material of the conductors and insulation determine the cable's characteristic impedance and attenuation at various frequencies. Coaxial rotors are a three-dimensional planar structure: a pair of helicopter rotors (wings) mounted one above the other on concentric shafts, with the same axis of rotation (but turning in opposite directions). In loudspeaker design, coaxial speakers A coaxial loudspeaker is a loudspeaker system in which the individual driver units radiate s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermediate Frequency
In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called heterodyning, resulting in a signal at the difference or beat frequency. Intermediate frequencies are used in superheterodyne radio receivers, in which an incoming signal is shifted to an IF for amplification before final detection is done. Conversion to an intermediate frequency is useful for several reasons. When several stages of filters are used, they can all be set to a fixed frequency, which makes them easier to build and to tune. Lower frequency transistors generally have higher gains so fewer stages are required. It's easier to make sharply selective filters at lower fixed frequencies. There may be several such stages of intermediate frequency in a superheterodyne receiver; t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WiFi
Wi-Fi () is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks in the world, used globally in home and small office networks to link desktop and laptop computers, tablet computers, smartphones, smart TVs, printers, and smart speakers together and to a wireless router to connect them to the Internet, and in wireless access points in public places like coffee shops, hotels, libraries and airports to provide visitors with Internet access for their mobile devices. ''Wi-Fi'' is a trademark of the non-profit Wi-Fi Alliance, which restricts the use of the term ''Wi-Fi Certified'' to products that successfully complete interoperability certification testing. the Wi-Fi Alliance consisted of more than 800 companies from around the world. over 3.05 billion W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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