DTV receiver

April 29, 2017 – 04:07 am
1080p Digital TV Receivers

A USB digital TV receiver with its antenna

A DTV receiver is a set-top box that permits the reception of digital television. Its components are very similar to a desktop PC. The DTV receiver is a vital link in the chain of television system. The goal of a broadcasting system is to concentrate the hardware requirements at the source to simplify the receivers and makes it as inexpensive as possible.

It is usually connected to the TV set or incorporated in the TV set. The main features of a DTV receiver may be classified as follows:

  • decodes the incoming digital signal;
  • verifies access rights and security levels;
  • displays cinema quality pictures on the TV set;
  • outputs digital surround sound;
  • processes and renders Internet and interactive TV services.

Overview[edit]

The tuner in the box receives a digital signal from a cable, a satellite, or terrestrial network and isolates a particular channel. The signal is then forwarded to a demodulator and converted to binary format. Once in binary format, the demodulator will check for error and forward the binary signal to a demultiplexer that will extract audio, video, and data from the binary stream. Once the demultiplexer has finished with the signal, the decoders will transform the digital bits into a format suitable for viewing on the television set.

As the architecture of a DTV receiver can vary in function of the network operator or the set-box manufacturer, we have chosen to divide the physical components into the following categories:

  • system board,
  • tuner,
  • modulator and demodulator,
  • demultiplexer and decryptor,
  • decoders,
  • graphics processor,
  • CPU and memory,
  • storage devices,
  • physical interfaces,
  • physical characteristics.

System board[edit]

All the main hardware components of the receiver are connected to the system board. Buses are used to carry the digital TV information between the hardware components.

DTV Tuner[edit]


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Source: en.wikipedia.org

Infitary Digital ATSC HD TV Receiver Converter Tuner Box for Analog TV with Recording PVR Function HDMI YPbPr RCA Coaxial Composite Output / USB Input USA
Home Theater (Infitary)
  • •USB 2.0 for PVR,TIMESHIFT,software upgrade and media files playback,•Video output resolution: 480i/576i/480p/576p/720p/1080i/1080P
  • •Converts digital broadcast to your analog TV,•By remote control to choose the RF 3/4 ch output
  • •Support teletext/subtitle/muti-language,•Powerful and highly effective 7-day EPG function
  • Note: If you would like to avoid the Scrambled Channels, please go to the main page and open the CHANNEL SEARCH, and choose the ANTENNA POWER, changing from ON to...
  • There is a protective membrane on the surface. You can peel it off while using at your choice
ViewTV All In One Free Television Bundle with AT-163 Digital TV Converter Box with Recording PVR Function and 150 Mile Outdoor Amplified Antenna with 360° Rotation
Home Theater (ViewTV)
  • Function: Convert your Digital Broadcast to your Analog TV and Analog Pass Through with Antenna
  • Output: HDMI 1080P Output / YPbPr output / Coaxial Output / RF Out (QAM NOT officially supported)
  • Features: Auto Tuning, Program guide, Recording PVR, Closed Caption, Favorite Channel List and Parental Control Function
  • 150 Miles Range Outdoor/Attic Antenna | Full HDTV Support: 720p, 1080i, 1080p | Weather resistant | Wireless remote controller included
  • In The Box: ViewTV AT-163 Digital Converter Box | ViewTV 150 Mile Outdoor Amplified Antenna | ViewTV Antenna Mounting Pole
Viewtv AT-163 ATSC Digital TV Converter Box Bundle with ViewTV Flat HD Digital Indoor TV Antenna and ViewTV HDMI Cable w/ Recording PVR Function / HDMI Out / Coaxial Out / Composite Out / USB Input
CE (Viewtv)
  • Function: Convert your Digital Broadcast to your Analog TV and Analog Pass Through with Antenna
  • Output: HDMI 1080P Output / YPbPr output / Coaxial Output / RF Out (QAM NOT officially supported)
  • Features: Auto Tuning, Program guide, Recording PVR, Closed Caption, Favorite Channel List and Parental Control Function
  • In the Box: ViewTV AT-163 , ViewTV Antenna (25 Mile Range), ViewTV HDMI Cable w/ right angle adapter, new Upgraded Remote, 1 Composite cable (Signal Meter NOT included)
  • USB Multimedia Player: Plays Divx, AVI, MKV, MPEG-2, MPEG-4, H.264/AVC, VOB, MOV, FLV, and VC-1
ViewTV ViewTV AT-263 ATSC Digital TV Converter Box and HDMI Cable w/ Recording PVR Function / HDMI Out / Coaxial Out / Composite Out / USB Input (New Model)
CE (ViewTV)
  • Function: Convert your Digital Broadcast to your Analog TV and Analog Pass Through with Antenna
  • Output: HDMI 1080P Output / YPbPr output / Coaxial Output / RF Out (QAM NOT officially supported)
  • Features: Auto Tuning, Program guide, Recording PVR, Closed Caption, Favorite Channel List and Parental Control Function
  • In the Box: ViewTV AT-263 , New Upgraded Remote, 1 Composite cable, 1 HDMI Cable (Signal Meter NOT included)
  • USB Multimedia Player: Plays Divx, AVI, MKV, MPEG-2, MPEG-4, H.264/AVC, VOB, MOV, FLV, and VC-1
HopCentury ATSC HD Digital TV Converter Box Receiver with HDMI YPbPr RCA Coaxial Outputs, Watch HD Digital TV on Analog Television and Media Player & Recording Functions
Home Theater (HopCentury Electronic Co., LTD)
  • Use Your TV in a Whole New Way. With this ATSC signal receiver converter box, you can watch HD & digital program without a new TV. Never Miss Your Favorite Shows...
  • Enjoy Multimedia on a Big Screen. Insert a USB drive (32GB Max.) to view photos, watch videos & listen to music. (Aspect ratio: Auto, 16:9 Pillar Box, 16:9 Pan...
  • Easy to Set Up. Connect your ATSC antenna and your TV via HDMI, YPbPr, RCA or Coaxial out. Search your local ATSC signal, then you can begin watching digital programs...
  • Find Shows & Save Channels. See what s on with the program guide! Surf a list of favorite stations!
  • Package includes: 1 x ATSC HD digital TV converter, 1 x Remote control (need 2pcs batteries, NOT included), 1 x RCA cable, 1 x User manual ( http://.hopcentury.com/1/ATSC.pdf...

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