IEC 62360:2008

Baseline specifications of satellite and terrestrial receivers for ISDB (Integrated Service Digital Broadcasting)

IEC 62360:2008(E) specifies the basic functions, ratings, and performance of receivers for the Integrated Services Digital Broadcasting (ISDB) system. It applies to: receivers for standard digital television broadcasting, high-definition television broadcasting, and radio broadcasting from satellite broadcasting stations in the frequency band of 11,7 GHz to 12,2 GHz, receivers for standard digital television broadcasting with a bandwidth of 34,5 MHz, from satellite broadcasting stations in the frequency band of 12,2 GHz to 12,75 GHz and receivers for the standard digital television broadcasting and high-definition television broadcasting from terrestrial broadcasting stations.This second edition cancels and replaces the first edition, published in 2004 and constitutes a technical revision. The main changes with respect to the previous edition are: the non-volatile memory size for terrestrial; BS and CS receiver has been specified; desirable reception channel range of the receiver for VHF and MID band has been specified; DVI interface and HDMI interface have been specified as digital interface; down mixing formula from multi-channel to 2-channel stereo has been changed.

General Information

• Status: Published
• Publication Date: 08-Sep-2008
• ICS: 33.160.25 - Television receivers
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: PPUB - Publication issued
• Start Date: 30-Nov-2008
• Completion Date: 09-Sep-2008

Relations

• Revises: IEC 62360:2004 - Baseline specifications of satellite and terrestrial receivers for ISDB (Integrated Service for Digital Broadcast)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62360
Edition 2.0 2008-09
INTERNATIONAL
STANDARD
Baseline specifications of satellite and terrestrial receivers for ISDB (Integrated
Services Digital Broadcasting)

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IEC 62360
Edition 2.0 2008-09
INTERNATIONAL
STANDARD
Baseline specifications of satellite and terrestrial receivers for ISDB (Integrated
Services Digital Broadcasting)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XC
ICS 33.160.25 ISBN 2-8318-9985-0
– 2 – 62360 © IEC:2008(E)
CONTENTS
FOREWORD.6
INTRODUCTION.8
1 Scope.9
2 Normative references .9
3 Abbreviations and symbols .10
4 Configuration of the receiver .11
4.1 General .11
4.2 Satellite receiver .12
4.3 Terrestrial receiver .12
5 Ratings and specifications of the units of the digital satellite broadcasting receiver .13
5.1 General .13
5.2 Satellite receiving antenna .13
5.3 Converter .13
5.4 Coupling cable .14
5.5 Specifications of DIRD .14
5.5.1 General .14
5.5.2 IF input.14
5.5.3 Intermediate frequency.14
5.5.4 Bandwidth of the intermediate frequency .14
5.5.5 Second local oscillator frequency .14
5.5.6 Front-end signal processing.14
5.5.7 Transport stream processing .15
5.5.8 Memories .15
5.5.9 Video decoding and its output.16
5.5.10 Audio decoding and its output.16
5.5.11 External interfaces.16
5.5.12 Remote controller and channel access .16
6 Ratings and specifications of the receiving units for the digital terrestrial television
broadcasting.17
6.1 Receiving antenna.17
6.2 Specifications of the DIRD.17
6.2.1 General .17
6.2.2 Input.17
6.2.3 First intermediate frequency .18
6.2.4 Synchronization range of the received frequency.18
6.2.5 Synchronization range of the received clock .18
6.2.6 Characteristics of the tuning unit .18
6.2.7 Front-end signal processing.19
6.2.8 Transport stream processing .22
6.2.9 Memories .22
6.2.10 Video decoding and its output.22
6.2.11 Audio decoding and its output.22
6.2.12 External interfaces.22
6.2.13 Remote controller and channel access .23
6.3 Analogue broadcast receiving function .23
7 Decoding process of video and audio, and those output signals .23

62360 © IEC:2008(E) – 3 –
7.1 Video decoding process and output signals .23
7.1.1 Video decoding process .23
7.1.2 Video output signals .27
7.1.3 Video-signal output.35
7.1.4 Copy protection .37
7.2 Audio decoding process and output signals .38
7.2.1 General .38
7.2.2 Audio decoding process .38
7.2.3 Audio mode detection and indication .40
7.2.4 Audio-signal output.40
7.3 Receiver’s function of hierarchical modulation in digital satellite broadcasting .41
7.3.1 Identification of hierarchical modulation.41
7.3.2 Reception processing of hierarchical modulation .41
7.3.3 Display of low-hierarchy video in hierarchical modulation .41
7.4 MP@LL moving picture and still picture of terrestrial digital television
broadcast .42
7.4.1 Display on receiving equipment .42
8 Downloading function .50
8.1 General .50
8.2 Terms and definitions, service variation.50
8.2.1 Terms and definitions .50
8.2.2 Service variation.50
8.3 Transmission scheme relevant to downloading .51
8.3.1 General .51
8.3.2 Transmission scheme of notification information.51
8.3.3 Transmission scheme of the content.57
8.4 Preferable specifications of the receiver .64
8.4.1 General .64
8.4.2 Necessary functions .64
8.4.3 Necessary capacity and performance of receiver hardware .66
9 Signal processing functions of DIRD.66
9.1 Service information .66
9.2 Identification between broadcasting and non-broadcasting .66
9.3 Number of PIDs to be simultaneously processed .66
9.4 Flow of program selection .66
Annex A (informative) Method of switching the video format .69
Annex B (informative) Down-mix processing in the AAC decoder .76
Bibliography.78

Figure 1 – Basic configuration of the receiver .11
Figure 2 – Basic configuration of DIRD .12
Figure 3 – Directional pattern of the antenna (excerpt from ITU-R recommendation
BT.419-3) .17
Figure 4 – Receiver block diagram of the 13-segment receiver .19
Figure 5 – Receiver block diagram of the one-segment receiver .21
Figure 6 – Desirable representation formats on monitors with a 4:3 aspect ratio and a
16:9 aspect ratio .34
Figure 7 – Reference drawing .49

– 4 – 62360 © IEC:2008(E)
Figure 8 – Identification flow of broadcasting/non-broadcasting .67
Figure 9 – Basic flow of program selection.68
Figure A.1 – Conceptual diagram of the timing of the transmitting and receiving sides
that enables SDTV/HDTV completely seamless switching (processing in cases in which
sequence_end_code_flag of video_decode_control_descriptor is 1) .73
Figure A.2 – Conceptual diagram of the timing of the transmitting and receiving sides in
the simplified method of switching SDTV/HDTV (processing in the cases in which
sequence_end_code_flag of video_decode_control_descriptor is 0) .75

Table 1 – Satellite receiving antenna rating .13
Table 2 – Converter rating .13
Table 3 – Coupling cable rating .14
Table 4 – Size of logo data .15
Table 5 – Ratings of the receiving antenna .17
Table 6 – Protection ratios of the 13-segment receiver .18
Table 7 – Size of logo data .22
Table 8 – Meaning of the code index of the MPEG-2 coding parameters in Tables 10
and 11 .24
Table 9 – Positions of active lines.24
Table 10 – Constraints of coding parameters 1 (case in which the display screen area is
not specified by sequence_display_extension).25
Table 11 – Constraints of coding parameters 2 (case in which the display-screen area is
specified by sequence_display_extension).26
Table 12 – Relationship between the parameter values of sequence_display_extension
of a stream and video-signal output 1 .28
Table 13 – Relationship between the parameter values of sequence_display_extension
of a stream and the video signal output 2.30
Table 14 – Relationship between the parameter values of sequence_display_extension
of a stream and video signal output 3 .32
Table 15 – 1080i component output .35
Table 16 – 720p component output .35
Table 17 – 480p component output .36
Table 18 – 480i component output .36
Table 19 – NTSC composite output.36
Table 20 – NTSC Y/C output.36
Table 21 – Colorimetric parameters .37
Table 22 – Formula of down mixing audio signal to 2-channel stereo .39
Table 23 – Formula of down mixing audio signal for external pseudo-surround processor.40
Table 24 – Relationship between the parameter values of sequence_display_extension
of reduced resolution moving pictures and video output signals (1).43
Table 25 – Relationship between the parameter values of sequence_display_extension
for reduced resolution moving pictures and video output signals (2).44
Table 26 – Relationship between the parameter values of sequence_display_extension
for reduced resolution moving pictures and video output signals (3).45
Table 27 – Relationship between the parameter values of sequence_display_extension
for still pictures and video output signals (1) .46
Table 28 – Relationship between the parameter values of sequence_display_extension
for still pictures and video output signals (2) .47

62360 © IEC:2008(E) – 5 –
Table 29 – Relationship between the parameter values of sequence_display_extension
for still pictures and video output signals (3) .48
Table 30 – Data structure of software download trigger table .52
Table 31 – Version indicator .54
Table 32 – Schedule time-shift information .54
Table 33 – Structure of download content descriptor.55
Table 34 – compatibilityDescriptor format .58
Table 35 – Identification field .59
Table 36 – DII (Download Info Indication Message) format.59
Table 37 – CDT syntax .61
Table 38 – Logo transmission descriptor syntax.63
Table 39 – Logo transmission type.63
Table A.1 – Video-decoding control descriptor .70
Table A.2 – Video encode format .70

– 6 – 62360 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BASELINE SPECIFICATIONS OF SATELLITE
AND TERRESTRIAL RECEIVERS FOR ISDB
(INTEGRATED SERVICES DIGITAL BROADCASTING)

FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62360 has been prepared by technical area 1: Terminals for audio,
video and data services and content, of IEC technical committee 100: Audio, video and
multimedia systems and equipment.
This second edition cancels and replaces the first edition, published in 2004 and constitutes a
technical revision.
The main changes with respect to the previous edition are listed below.
– The non-volatile memory size for terrestrial, BS and CS receiver has been specified.
– Desirable reception channel range of the receiver for VHF and MID band has been specified.
– DVI interface and HDMI interface have been specified as digital interface.
– Down mixing formula from multi-channel to 2-channel stereo has been changed.

62360 © IEC:2008(E) – 7 –
The text of this standard is based on the following documents:
CDV Report on voting
100/1323/CDV 100/1423/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

– 8 – 62360 © IEC:2008(E)
INTRODUCTION
This International Standard is based on, and is the subset of ARIB STD-B21 Version 4.5 which
is established with regard to digital broadcasting receivers. It contains baseline specifications of
receivers for satellite and terrestrial ISDB systems. It does not contain EPG (Electronic Program
Guide), CA (Conditional Access), bi-directional communication function, data decoder function
and high speed digital interface connector specification which were covered by the ARIB
STD-B21.
___________
The Association of Radio Industries and Businesses establishes ARIB standards for the basic technical
requirements such as various radio-equipment specifications for various radio signal utilization systems, with the
participation of broadcasting-equipment manufacturers, broadcasting service providers, radio-equipment
manufacturers, telecommunication companies, and their users.
ARIB standards are private standards established by compiling private and voluntary standards that have been
developed to increase convenience for broadcasting-equipment manufacturers, broadcasting service providers,
radio-equipment manufacturers, telecommunication companies, and their users, such as by ensuring the
appropriate quality of and compatibility between broadcasting and radio facilities. These standards are intended to
be used in conjunction with national technical standards established to ensure the efficient use of available
frequencies and to avoid radio interference between users.
In order to ensure fairness and transparency in the establishment process, the standard was determined by
consensus of all participants in our standard meeting, selected without bias from a broad range of interested
parties – foreign and domestic, firms and individuals – including broadcasting-equipment manufacturers,
broadcasting service providers, radio equipment manufacturers, common carriers, and their users.

62360 © IEC:2008(E) – 9 –
BASELINE SPECIFICATIONS OF SATELLITE
AND TERRESTRIAL RECEIVERS FOR ISDB
(INTEGRATED SERVICES DIGITAL BROADCASTING)

1 Scope
This International Standard specifies the basic functions, ratings, and performance of receivers
for the Integrated Services Digital Broadcasting (ISDB) system. It applies to: receivers for
standard digital television broadcasting, high-definition television broadcasting, and radio
broadcasting from satellite broadcasting stations in the frequency band of 11,7 GHz to 12,2 GHz
(hereinafter referred to as “BS digital broadcasting”); receivers for standard digital television
broadcasting with a bandwidth of 34,5 MHz from satellite broadcasting stations in the frequency
band of 12,2 GHz to 12,75 GHz (hereinafter referred to as “broadband CS digital broadcasting”);
and receivers for the standard digital television broadcasting and high-definition television
broadcasting from terrestrial broadcasting stations (hereinafter referred to as “digital terrestrial
television broadcasting”).
With regard to the receiver, it may be designed for receiving only one broadcast service from the
above-mentioned digital broadcasting or for receiving multiple broadcast services. Various
types of receivers for receiving digital terrestrial television broadcasts may be designed, that is,
receivers intended for fixed, for mobile and for portable reception.
This standard defines the BS digital-broadcasting receiver, the dual-purpose receiver for BS
digital broadcasting and broadband CS digital-broadcasting (hereinafter referred to as a “BS
and broadband CS digital broadcasting dual-purpose receiver”), as well as the receiver for
digital terrestrial television broadcasting using an outdoor fixed receiving antenna and with a
large display. For a small-sized simple receiver, a vehicle-mounted receiver, a portable receiver,
and the like, this standard should be applied as far as practical.
In this standard, the BS digital-broadcasting receiver and the BS and broadband CS
digital-broadcasting dual-purpose receiver are generically described as digital satellite
broadcasting receivers.
In addition, when it is necessary to distinguish between the BS digital-broadcasting receiver and
the BS and broadband CS digital-broadcasting dual-purpose receiver, [BS] is additionally used
to specify a BS digital-broadcasting receiver, and [BS • CS] is used likewise to specify a BS and
broadband CS digital-broadcasting dual-purpose receiver.
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of the
referenced document (including any amendments) applies.
ISO/IEC 13818-1, Information technology – Generic coding of moving pictures and associated
audio information: Systems
ISO/IEC 13818-2, Information technology – Generic coding of moving pictures and associated
audio information: Video
ISO/IEC 13818-7, Information technology – Generic coding of moving pictures and associated
audio information – Part 7: Advanced Audio Coding (AAC)

– 10 – 62360 © IEC:2008(E)
ITU-R BT.419-3, Directivity and polarization discrimination of antennas in the reception of
television broadcasting
ITU-R BT.709, Parameter values for the HDTV standards for production and international
programme exchange
ITU-R BT.1361, Worldwide unified colorimetry and related characteristics of future television
and imaging systems
IETF Standard: RFC2046, Multipurpose Internet Mail Extension (MIME) Part Two: Types
3 Abbreviations and symbols
AAC Advanced Audio Coding
ADTS Audio Data Transport Stream
ARIB Association of Radio Industries and Businesses
BS Broadcast Satellite
bslbf bit string, left bit first
CRC Cyclic Redundancy Check
CS Communication Satellite
DDB Download Data Block Message
DDWG Digital Display Working Group
DEMUX de-Multiplex
DII Download Info Indication Message
DIRD Digital Integrated Receiver Decoder
DQPSK Differential Quadrature Phase Shift Keying
DSM-CC Digital Storage Media Command and Control
DTS Display Time-Stamp
DVI Digital Visual Interface
ECM Entitlement Control Message
EPG Electronic Program Guide
HDMI High-Definition Multimedia Interface
HDTV High Definition Television
IEC International Electrotechnical Commission
IF Intermediate Frequency
IRD Integrated Receiver Decoder
ISDB Integrated Services Digital Broadcasting
ISO International Organization for Standardization
LC Low Complexity
LFE Low Frequency Enhancement
MJD Modified Julian Date
MPEG Moving Picture Experts Group
MSB Most Significant Bit
OFDM Orthogonal Frequency Division Multiplex
PCR Program Clock Reference
PES Packetized Elementary Stream

62360 © IEC:2008(E) – 11 –
PID Packet IDentifier
PMT Program Map Table
PSI Program System Information
PTS Presentation Time-Stamp
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
RS Reed-Solomon
SDTT Software Download Trigger Table
SDTV Standard Definition Television
SHB Super Hi-Band
SP Scattered Pilot
TMCC Transmission and Multiplexing Configuration Control
uimsbf unsigned integer most significant bit first
16QAM 16-level Quadrature Amplitude Modulation
64QAM 64-level Quadrature Amplitude Modulation
4 Configuration of the receiver
4.1 General
The basic configuration of the “receiver” specified here is shown in Figure 1.
The basic configuration of the DIRD is shown in Figure 2.

1) Satellite receiving antenna
4)
2) 3) DIRD
IF input
coupling cable
Decoder, Video output
Converter HDTV-SDTV
descramblers,
Video and
Audio output
etc.
audio monitor
6) Coupling cable between
the terrestrial receiving
5) antenna and DIRD
Terrestrial
receiving
antenna
Digital-broadcasting receiver
IEC  1475/08
Figure 1 – Basic configuration of the receiver

– 12 – 62360 © IEC:2008(E)
Interoperability
connection unit
TSs of Terrestrial adapter, CS and CATV
Satellite front end
Demodulation/
Tuner pack
TS
decoding De-interleaving
Reed-Solomon
Tuning
(8PSK, etc.) Frame separation
decoding
Orthogonal detection
Descrambler
TMCC decoding
Terrestrial front end
De-interleaving
Demodulation/
Tuner pack
TS
hierarchical
decoding
Tuning
TS regeneration
processing, energy
(64QAM, etc.)
Detection
inverse-dispersal,
etc.
TMCC decoding
MPEG-2 Graphic
Descrambler
DEMUX
Video
HD video output
decoding
HD-SD D/C
SD video output
Audio
Audio output
decoding
IEC  1476/08
Figure 2 – Basic configuration of DIRD
4.2 Satellite receiver
The satellite receiver is composed of the following units:
• satellite receiving antenna;
• converter;
• DIRD;
• coupling cable between the converter and the DIRD.
However, the satellite receiving antenna (including a feed horn) may be integrated with the
converter.
4.3 Terrestrial receiver
The terrestrial receiver is composed of the following units:
• terrestrial receiving antenna;
• DIRD;
• coupling cable between the terrestrial receiving antenna and the DIRD.

62360 © IEC:2008(E) – 13 –
5 Ratings and specifications of the units of the digital satellite broadcasting
receiver
5.1 General
In the descriptions in this clause, [BS] indicates the ratings and specifications only for BS digital
broadcast receivers, and [BS • CS] indicates those of the BS and broadband CS digital
broadcast dual-purpose receivers.
5.2 Satellite receiving antenna
Table 1 – Satellite receiving antenna rating
Item Rating
Received frequency range [BS] 11,710 23 GHz to 12,166 69 GHz
[BS • CS] 11,710 23 GHz to 12,748 25 GHz
Receiving polarization [BS] Right-hand circular
[BS • CS] Right-hand/left-hand circular
Antenna diameter The desired antenna diameter is not specified, as the necessary antenna
diameter varies depending on the receiving conditions
Output structure The output structure shall be composed of a WRJ-120-type wave-guide and a
BRJ-120 flange, and shall be provided with waterproof packing. Not applicable
to the all-in-one type with a converter

5.3 Converter
Table 2 – Converter rating
Item Rating
Input structure The input structure shall be composed of a WRJ-120-type wave-guide and a
BRJ-120 flange, and shall be provided with waterproof packing. Not applicable
to the all-in-one type with a converter
Range of input-signal level For one channel: BS band: –90 dB(mW) to –70 dB(mW)
CS band: –94 dB(mW) to –70 dB(mW)
Overall gain BS band: 52 dB ± 4 dB
CS band: 52 dB ± 6 dB
Intermediate frequency BS band: 1 032,23 MHz to 1 488,69 MHz
CS band: 1 575,75 MHz to 2 070,25 MHz
First local frequency 10,678 GHz
Output impedance
75 Ω
Output structure Waterproof receptacle equivalent to a high-frequency coaxial C15-type
connector
Power supply [BS] DC +15 V +10 % –12 %, 4 W or less
[BS • CS] Right-hand circular, DC 13,5 V to 16,5 V (15 V), 4 W or less
Left-hand circular, DC 9,5 V to 12,0 V (11 V), 3 W or less

– 14 – 62360 © IEC:2008(E)
5.4 Coupling cable
Table 3 – Coupling cable rating
Item Rating
Type Equivalent to S-4CFB (see JIS C3502, Bibliography) or upper grade
Cable length The assumed maximum length is 30 m. Loss generated in the cable in
conjunction with the achievement of broadband performance is compensated
for by inserting a booster between the converter and DIRD
Connection connector Converter side: high-frequency coaxial C15-type waterproof plug
DIRD side: F-type plug
5.5 Specifications of DIRD
5.5.1 General
DIRD shall satisfy the following specifications.
5.5.2 IF input
The input-terminal structure is equivalent to a high-frequency coaxial C15-type connector
(female); its main characteristics are:
• Impedance: 75 Ω
• Received frequency: [BS] 1 032 MHz to 1 489 MHz
[BS • CS] 1 032 MHz to 2 071 MHz
• Input-signal level: –61 dB(mW) to –28 dB(mW)
5.5.3 Intermediate frequency
Intermediate frequency: either 402,78 MHz or 479,5 MHz; otherwise, direct conversion shall be
performed. However, as the intermediate frequencies lie in the frequency band for terrestrial
television UHF broadcasting, it is necessary to consider possible interference.
5.5.4 Bandwidth of the intermediate frequency
The bandwidth shall be within an occupied bandwidth of 34,5 MHz.
5.5.5 Second local oscillator frequency
The second local oscillator frequency shall be above the received frequency.
5.5.6 Front-end signal processing
The front-end signal processing requires the following procedures.
• Channel selection: A channel shall be selected from the IF range, in
accordance with the channel-selection control signal.
• Demodulation: The modulated signal is demodulated. The necessary
timings for a super frame, a frame, and a packet are
generated through clock regeneration, clock distribution,
and synchronization acquisition. Burst signals for carrier
synchronization shall be eliminated.
• Waveform shaping: Waveforms with a roll-off factor of 0,35 and a raised cosine
characteristic shall be distributed via a

62360 © IEC:2008(E) – 15 –
transmission/reception route. The sending side shall
conduct aperture compensation using x/sin(x).
• Error-correction (inner code): Trellis/Viterbi decoding shall be carried out.
• TMCC decoding: TMCC is extracted from the decoded signal and decoded.
• Frame reconstruction: A frame structure shall be reconstructed from the decoded
signal.
• Energy inverse-dispersal: The inverse-dispersal is performed with the 15th
M-sequence PN signal.
• Error-correction (outer code): Shortened Reed-Solomon code (204, 188) is decoded.
5.5.7 Transport stream processing
A TS packet is selected in accordance with a TS selection signal from a TS packet stream that
is frame-structured (made up of 48 slots) and is output.
It is mandatory for the DIRD to have a section filtering function that supports the following three
section formats for data stipulated by ISO/IEC13818-1:
a) one section is composed of one TS packet;
b) multiple sections are included in one TS packet (however, the maximum number of sections
included in one TS packet is limited to 10.);
c) one section is composed of two or more TS packets.
5.5.8 Memories
5.5.8.1 Memory for storage of the DIRD program
The receiver shall have non-volatile memory for the storage of program codes.
5.5.8.2 Memory for storage data common to all receivers
As a non-volatile memory area for data common to all receivers, the BS digital broadcast
receiver shall have a memory area of 10 kB and the BS and broadband CS digital broadcast
dual-purpose receivers shall have memory areas of 30 kB, the terrestrial, BS and broadband CS
digital-compatible receiver shall have a memory area of 40 kB, for a genre table, a program
characteristic table, and the reserved words, etc. Various common use receivers shall be able to
share the memory for the genre table, the reserved word table and the like that are commonly
used in all transmission media. In addition, each receiver shall have a data area for the storage
of logo data. In which logotype among the six types the logo data is to be stored depends on the
implementation of the receiver. The required memory capacity in each logotype is shown in
Table 4.
Table 4 – Size of logo data
(Three hundred types of logo data and a thousand types of services
are assumed for the BS and the broadband CS, respectively.)
Logo data Size
HD large (1/2 compression) 354 kB
HD small (3/4 compression) 300 kB
SD4:3 large (1/2 compression) 397 kB
SD4:3 small (3/4 compression) 267 kB
SD16:9 large (1/2 compression) 300 kB
SD16:9 small (3/4 compression) 202 kB

– 16 – 62360 © IEC:2008(E)
5.5.9 Video decoding and its output
The video output is described in Clause 7.
5.5.10 Audio decoding and its output
The audio output is described in Clause 7.
5.5.11 External interfaces
The following units/items are external interfaces.
a) IF input
One IF input terminal shall be provided.
b) Video output (except for the integrated TV)
This is described in Clause 7.
c) Audio output (except for the integrated TV)
This is described in Clause 7.
5.5.12 Remote controller and channel access
5.5.12.1 General
No requirements are made for the shape or keys of the remote controller, the channel access
method, or the like. However, commonality of the keys used for basic functions (power supply/
channel access/system setting, etc.) should be provided wherever possible, in order to increase
convenience for the user.
5.5.12.2 Recommended keys
The following keys should be provided to enable the user to enjoy digital broadcast services:
• power-supply key (key that the user operates to switch between the on- and standby-mode);
• ten keys, a decision key, channel up-and-down keys, and a menu key;
• keys for “move upward,” “move downward,” “move rightward,” and “move leftward”
(A joystick or the like may replace these keys.).
For the BS and broadband CS dual-purpose receivers, the following key should be provided in
addition to the above-mentioned keys:
• network change key.
5.5.12.3 Channel access
The channel access method is not specified, but is left to those involved in product planning.
However, a service ID, a channel name, and a logo are designated by the broadcast service
provider. The method of accessing a channel, that is, whether it is done by entering the service
ID or by operating the ten keys, a channel addressing key, or the like, is left for the product
planning.
62360 © IEC:2008(E) – 17 –
6 Ratings and specifications of the receiving units for the digital terrestrial
television broadcasting
6.1 Receiving antenna
Table 5 – Ratings of the receiving antenna
Item Rating
Range of received frequency UHF channel 13 to 62 (470 MHz to 770 MHz)
Received polarized wave Horizontal or vertical
Antenna gain Antenna gain is not specified, as it varies depending on the reception
a
conditions
Directional pattern A directional pattern is not specified, as it varies depending on the
b
reception conditions.
a
When the antenna is permanently installed outdoors (stationary reception), the antenna gain should be
equivalent to or greater than that of a 14-element Yagi antenna (7 dB/UHF channel 13).
b
When the antenna is permanently installed outdoors, installation should be according to ITU-R BT.419-3 (see
Figure 3).
–5
–10
–15
–20
0° 10° 20° 30° 40° 50° 60° 70° 80° 180°
Angle relative to direction of main response
IEC  1477/08
Figure 3 – Directional pattern of the antenna
(excerpt from ITU-R recommendation BT.419-3)
6.2 Specifications of the DIRD
6.2.1 General
The DIRD shall satisfy the following specifications.
6.2.2 Input
The main input characteristics are:
• Impedance: 75 Ω
• Received frequency: UHF channel 13 to 62
• Centre frequency: 473 + 1/7 MHz (channel 13), 479 + 1/7 MHz (channel 14),
...