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Receiver for Digital Broadcasting
Standard (ARIB STD-B20) Overview

This standard concerns specifications of receivers for digital broadcasting, and specifies, in particular, minimum basic functions and ratings and desired performance to satisfy initial needs for the deployment of digital satellite television broadcasting and other forms of digital broadcasting.


1. Scope (Ver. 3.0)

This standard applies to receivers for three types of digital broadcasting. The first is 11.7-12.2 GHz digital satellite television broadcasting for standard television broadcasting, high-definition television broadcasting, VHF broadcasting, and data broadcasting. The second is 12.2-12.75 GHz digital communication satellite television broadcasting, for 34.5-MHz-bandwidth standard television broadcasting, high-definition television broadcasting, VHF broadcasting, and data broadcasting. The third is digital broadcasting for standard television broadcasting and high-definition television broadcasting as performed by broadcast studios, or digital terrestrial television broadcasting.

While various types of receivers can be considered depending on the reception format, this standard concerns specifications for those standard receivers that use fixed antennas among receivers for digital satellite broadcasting, receivers for dual use of digital satellite broadcast and digital communication satellite broadcasting, and receivers for digital terrestrial broadcasting.

Compact and simple receivers, vehicle-mounted receivers, portable receivers, etc. will either apply or reference this standard.


2. Contents
Chapter 1 General
Describes purpose, scope, and references.
Chapter 2 Receiver Configuration
Describes the basic configuration of a reference model.
Chapter 3 Ambient Conditions
Describes ambient conditions for receivers.
Chapter 4 Ratings and Specifications for Receivers used in Digital Satellite Broadcasting
Describes receivers for digital satellite broadcasting and receivers for dual use of digital satellite and communication satellite broadcasting.
Chapter 5 Ratings and Specifications for Receivers used in Digital Terrestrial Television Broadcasting
Describes standard receivers for digital terrestrial broadcasting using outdoor fixed antennas.
Chapter 6 Decoding and Output of Video and Audio Signals
Describes the decoding process and output formats for video and audio signals.
Chapter 7 Basic Data Decoder Specifications
Chapter 8 Electronic Program Guide (EPG) Specifications
Chapter 9 High-speed Digital Interface Specifications
Describes interface specifications, descriptors, commands, etc. centered about a high-speed serial interface (IEEE1394) for use in satellite broadcast receivers.
Chapter 10 CA Module Interface Specifications
Chapter 11 Bi-directional Communication Functions
Describes specifications of bi-directional communication functions for use in viewer-data collection, data broadcasting, and data distribution.
Chapter 12 Download Functions
Describes desirable receiver specifications for receiving download data and performing updating.
Chapter 13 DIRD Signal Processing Functions
Describes flow for broadcast/non-broadcast identification and program selection.
Note: DIRD stands for Digital Integrated Receiver and Decoder.
Chapter 14 Performance of each Receiver Section
Chapter 15 Dual-use Receiver (optional)
Appendix Comments and Guidelines
Appendix 1 Method for Switching between Video Formats
Appendix 2 High-speed Digital Interface
Appendix 3 Download Functions
Appendix 4 Down-mix Processing in the AAC Decoder
Appendix 5 Digital Terrestrial Television Broadcasting and Dual-use Receivers
Appendix 6 Antenna System for Broadband Digital Communication Satellite Broadcasting and Points of Concern
Appendix 7 Antenna Specifications Described in ITU-R Recommendation BO.1213
Appendix 8 Desirable DIRD Specifications when a Satellite Repeater or Equivalent Transmission Path Cannot be Prepared at Measurement Time
Appendix 9 Bi-directional Communications
Appendix 10 Receiver Performance in Digital Terrestrial Television Broadcasting


3. Basic Receiver Configuration





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