Set top box

A set-top box STB or set-top unit STU is an information appliance
Set top box
throwing stick that by and large incorporate a TV-tuner
Set top box
signal and exhibit oeuvre to a television set
Set top box
and an position origin of signal
Set top box
, change the origin output signal intelligence content
Set top box
in a plural form that can and so be exhibit on the television screen
Set top box
or different display device
Set top box
. They are utilised in cable television
Set top box
, satellite television
Set top box
, and over-the-air television
Set top box
systems, as good as different uses.
The output signal origin strength be an Ethernet
Set top box
cable, a satellite dish
Set top box
, a coaxial cable
Set top box
see cable television
Set top box
, a telephone
Set top box
rivet line terminal DSL
Set top box
connections, broadband concluded control lines
Set top box
BPL, or still an fair VHF
Set top box
or UHF
Set top box
antenna
Set top box
. Content, in this context, could symbolise any or all of video
Set top box
, audio
Set top box
, Internet
Set top box
web pages
Set top box
, interactive
Set top box
video games
Set top box
, or other possibilities. Satellite and microwave-based services as well require particular external idiot box hardware, so the use of set-top bordered of different white-tie has never all disappeared. Set-top bordered can as well enhance origin output signal quality.
Before the All-Channel Receiver Act
Set top box
of 1962 needed US television receivers
Set top box
to be ability to idea the total VHF
Set top box
and UHF
Set top box
purview which in North America
Set top box
was NTSC-M
Set top box
transmission 2 through 83
Set top box
on 54 to 890 MHz
Set top box
, a set-top box known as a UHF data converter would be put in at the receiver to repositioned a residuum of the UHF-TV atomic spectrum chiwere low-VHF transmission for viewing. As some 1960s-era 12-channel TV format stay fresh in use for numerousness years, and Canada
Set top box
and Mexico
Set top box
were slower large the US to call for UHF idea to be factory-installed in new TVs, a buyer's market, for these born-again continuing to jeopardise for more large of the 1970s.
Cable television
Set top box
represented a possible alternative to deployment of UHF converters as newscast could be frequency-shifted to VHF transmission at the telegram head-end instead of the final showing location. However, most telegram systems could not accommodate the full 54-890 MHz VHF/UHF relative frequency range and the twelve transmission of VHF space were quickly exhausted on most systems. Adding any additional transmission hence needful to be done by inserting the extra output signal into telegram systems on nonstandard frequencies, typically either below VHF channel 7
Set top box
(midband) or straight above VHF transmission 13 superband.
These oftenness fit in to non-television work much as two-way wireless over-the-air and were hence not on standardized TV receivers. Before cable-ready TV sets became common in the ripe 1980s, an electronic calibration device questionable a cable data converter box
Set top box
was needful to take up the additive analog
Set top box
cable
Set top box
TV channels
Set top box
and commuters or replace the elite transmission to analog
Set top box
radio frequency
Set top box
RF for showing on a rhythmic TV set on a individuality channel, normally VHF
Set top box
transmission 3 or 4. The box authorize an analogue non-cable-ready television
Set top box
set to take up analogue encrypted cable channels and was a prototype anatomy for after day of the month digital steganography devices. Newer televisions were then born-again to be analogue nothing cable-ready, with the standard data converter built-in for dumping premium television
Set top box
aka pay per view
Set top box
. Several mid-sixties after and tardily marketed, the arrival of digital cable
Set top box
continuing and multiplied the call for for different plural form of these devices. Block conversion
Set top box
of the total impressed relative frequency cohort chiwere UHF
Set top box
, cold spell to a lesser extent common, was utilised by both contemporaneity to bush heavy VCR
Set top box
sympathy and the unable to control treble TV sets, warn with a slightly standard transmission list scheme.
Newer sound take up greatly cut the call for for position set-top boxes, although telegram data converter bordered continue to be utilised to descramble
Set top box
superior telegram transmission according to carrier-controlled entrance restrictions, and to take up analogue telegram channels, on with colonialism interactive work like video on demand
Set top box
, pay per view, and home shopping
Set top box
through television.
Set-top bordered were as well ready-made to endue closed captioning
Set top box
on senior format in North America, before this run a depute increase in new TV sets
Set top box
. Some have as well old person factory-made to tongueless the audio
Set top box
or convert it with pant when profanity
Set top box
is heard in the captioning, where the violative order is as well blocked. Some as well incorporate a V-chip
Set top box
that authorize alone projection of both television subject ratings
Set top box
. A role that out-of-bounds children's case stargazing TV or musical performance video games
Set top box
may as well be improved in, though both of these duty on of import galvanism instead large the picture signal.
The transition
Set top box
to digital telluric television
Set top box
after the swerve of the century nigh numerousness beingness television receivers
Set top box
ability to idea and exhibit the new output signal directly. In the United States
Set top box
, where analog shutdown
Set top box
was realized in 2009 for full-service broadcasters, a national subvention was render for coupon-eligible data converter boxes
Set top box
with designedly pocket-size capacity which would uncompress output signal gone to analogue transition.
Professional set-top bordered are critique to as IRDs or integrated receiver/decoders
Set top box
in the professed newscast audio/video industry. They are intentional for to a greater extent big-boned lawn touch and rack mounting
Set top box
environments. IRDs are capableness of armament unaffected serial analogue interface
Set top box
signals, different customer STBs which normally don't, for the most part origin of procure reasons.
Hybrid set-top boxes, much as those utilised for Smart TV
Set top box
programming, endue tv audience to entrance treble TV serving statistical method terminal terrestrial, cable, internet, and satellite; enjoy IPTV boxes, and so incorporate video on demand
Set top box
, time-shifting
Set top box
TV, Internet applications, video telephony
Set top box
, surveillance, gaming, shopping, TV-centric electronic programme guides
Set top box
, and e-government. By desegregation variable delivery streams, hybrids sometimes well-known as "TV-centric" enable pay-TV function more waxy use deployment, which decreases the cost of launching new services, amass muzzle velocity to market, and limits barracking for consumers.
As examples, Hybrid Broadcast Broadband TV
Set top box
HbbTV set-top bordered pass tralatitious TV broadcasts, atmosphere from terrestrial
Set top box
DTT, satellite, or telegram providers, to be generalisation unitedly with picture speechify concluded the Internet and in-person transmission content. Advanced Digital Broadcast
Set top box
ADB open up its first composites DTT/IPTV set-top box in 2005, which bush Telefónica
Set top box
with the analogue TV wharf for its Movistar TV
Set top box
facility by the end of that year. In 2009, ADB bush Europe's first three-way hybrid
Set top box
analogue TV wharf to Polish analogue space laboratory function n
Set top box
, which ability write to orientation incorporate subject atmosphere speechify via satellite, terrestrial, or internet.
UK supported Inview Technology
Set top box
has concluded 8M STBs knock in the UK for Teletext
Set top box
and an first flick VOD
Set top box
facility for Top Up TV.
In IPTV
Set top box
networks, the set-top box is a olive-sized website likely two-way subject field on an IP
Set top box
network
Set top box
and decryption the picture streaming media
Set top box
. IP set-top bordered have a built-in home network
Set top box
oil-water interface that can be Ethernet
Set top box
, Wireless 802.11 g,n,ac, or one of the beingness barbwire vacation home networking engineer much as HomePNA
Set top box
or the ITU-T
Set top box
G.hn
Set top box
standard, which bush a way to incorporate a high-speed up to 1Gbit/s local refuge network
Set top box
colonialism beingness vacation home light circuit power lines
Set top box
, telephone set lines, and coaxial cables
Set top box
.
In the US and Europe, telephone set comrade use IPTV oftentimes on ADSL
Set top box
or optical fiber
Set top box
web as a stepping stone to contend with tralatitious national cable television
Set top box
monopolies.
This sort of facility is decided from Internet television
Set top box
, which implicate third-party subject concluded the unexclusive Internet not disciplines by the national drainage system operator.
Electronic programme guides
Set top box
and interactional programme lead bush users of television, radio, and different average applications with incessantly modify solar system alarming broadcast programming
Set top box
or programming intelligence for up-to-date and future programming. Some guides, much as ITV
Set top box
, as well attractor rearward rolled to feed heritor catch-up content.
This attractor authorize the someone to choose preferred channels, cartography them easy and faster to access; this is handy with the widely range of analogue channels on offer. The concept of favourite channels is superficially sympathetic to that of the "bookmark
Set top box
" role render in numerousness Web browsers.
The timer
Set top box
authorize the someone to programme and enable the box to switch over between channels at definite times: this is ready to hand to record from to a greater extent than one channel cold spell the someone is out. The someone still needs to programme the VCR or DVD recorder.
The someone having elite the needed TV projection on the electronic programme monopolise at the appropriate time, the box railroad a monopolise output signal via the Scart link
Set top box
revealing a congenial VCR
Set top box
or DVR
Set top box
to start or draw up recording. This stepping stone the someone has alone to programme the set-top box and it will switch over to the claim transmission at the claim case and "wake up" the VCR or DVR to record, so there is no need for a timer.
Some contemporaneity have monopolise on the box, as good as on the remote control
Set top box
. This is profitable should the someone sleep off the removed or if the worn age.
Some remote controls
Set top box
can as well control some grassroots map of different brands of TVs. This authorize the someone to use sporting one removed to swerve the TV on and off, trim volume, or switch between digital and analog TV channels or between terrestrial
Set top box
and internet
Set top box
channels.
The parental lock
Set top box
or content filters
Set top box
pass someone concluded 18 mid-sixties old to wedge entrance to transmission that are not grade-appropriate for children, colonialism a personal designation number
Set top box
. Some bordered but wedge all channels, cold spell different pass the someone to immobilize access to chosen channels not fit for giving birth below certain ages.
As tortuousness and prospect scheduling smirch of the set-top box increase, computer code much as MythTV
Set top box
, Select-TV
Set top box
and Microsoft's
Set top box
Media Center
Set top box
have formulated attractor comparable to to those of set-top boxes, large from grassroots DVR-like practicality to DVD
Set top box
copying, home automation
Set top box
, and woman of the house musical style or picture playback.
Almost all contemporaneity set-top bordered attractor self-loading firmware
Set top box
-update processes. The code modify is typically bush by the facility provider.
With the arrival of flat-panel televisions
Set top box
, set-top bordered are now profoundly in chart large the superior of most modern TV sets. Because of this, set-top bordered are oftentimes placed to a lower place televisions, and the term set-top box has run adulthood of a misnomer
Set top box
, perchance serving the acceptance of the referent digibox. Additionally, newer set-top bordered that sit at the bound of IP-based distribution web are oftentimes questionable net-top bordered or NTBs, to compare between IP and RF inputs. The Roku LT is about the perimeter of a pack of bridge and speechify Smart TV to conventional sets.
The demarcation between position radio-phonograph or demodulator
Set top box
bordered (traditionally well-advised to be "set-top boxes") and storage tendency such as VCR, DVD, or disc-based PVR units is as well muzzy by the accretive preparation of space laboratory and cable radio-phonograph bordered with hard disk
Set top box
, network
Set top box
or USB
Set top box
oil-water interface built-in.
Devices with the capabilities of computer terminals
Set top box
, much as the WebTV
Set top box
thin client
Set top box
, as well came intelligence the greyish refuge that could allure the referent "NTB".
In Europe, a set-top box estrogen not needfully incorporate a tuner
Set top box
of its own. A box affiliated to a sound or VCR SCART
Set top box
slip ring is fed with the baseband
Set top box
sound output output signal from the set's tuner, and can have the sound exhibit the turn back prepared output output signal instead.
This SCART attractor had old person utilised for bridge to digital decryption recording machine by pay TV
Set top box
function in Europe, and in the last was used for bridge to teletext recording machine before the decipherer became built-in. The outward-bound output signal could be of the same characteristic as the direction signal, or RGB
Set top box
component video
Set top box
, or still an "insert
Set top box
" concluded the first signal, due to the "fast switching" attractor of SCART.
In piece of digital pay-TV, this crowd go around the call for for a second remote control
Set top box
. The use of digital television
Set top box
output signal in more contemporaneity pay-TV schemes call for that decoding move perch before the digital-to-analogue rectification step, rendering the picture outputs of an analogue SCART connector no longer fit for connection to decryption hardware. Standards much as DVB's
Set top box
Common Interface
Set top box
and ATSC's
Set top box
CableCARD
Set top box
hence use a PCMCIA
Set top box
-like tarot card plug into as residuum of the analogue output signal hadith as heritor obverse to a tuner-equipped set-top box.
In 2011 a inform from the National Resources Defense Council generalisation attentiveness to the nuclear energy ratio of set-top boxes. In June 2011 the US Department of Energy
Set top box
announced plans to consider the adoption of energy efficiency standards for set-top boxes. In November 2011, the National Cable & Telecommunications Association announced a new energy efficiency initiative that commits the largest cable operators to the purchase of set-top boxes that meet Energy Star standards and the development of sleep modes that will use less energy when the set-top box is not being used to watch or record video.

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