"日本ISDB数字电视机顶盒开发查阅及服务信息协议栈总结"

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日本ISDB标准是一项适用于数字电视机顶盒开发的服务信息协议。该标准涉及到服务信息的传输和接收，使用户能够获得包括频道列表、EPG（电子节目指南）等在内的相关信息。 ISDB SI（服务信息）协议是日本ISDB标准中的一个重要组成部分。该协议旨在提供数字电视机顶盒与广播系统之间的通信接口，使机顶盒能够接收和显示电视节目的相关信息。这些信息包括频道的名称、频率、音视频编码参数等。通过ISDB SI协议，用户可以方便地找到自己喜欢的电视节目，并获得更多相关信息。日本ISDB标准的发展历程可以追溯到1997年6月19日，当时发布了第一个版本（1.0）。此后，经过多次修订和更新，不断完善和改进了该标准。1998年、1999年、2000年、2001年、2002年分别发布了1.1、1.2、1.3、2.0、3.0、3.1、3.2和3.3等版本。同时，日本、巴西和菲律宾的ISDB协议栈也具有相似的特点。这表示这几个国家之间在数字电视技术标准上有共同的基础，可以相互兼容和交流。各国的ISDB标准都遵循ARIB STD-B10版本4.6的规范，该规范于1997年6月19日发布，是1998年7月21日进行修订，并于2002年之前进行了多次修订。 ISDB标准对于数字电视机顶盒的开发具有重要意义。它不仅提供了电视节目的服务信息，还能适应不同国家的需求，满足用户对数字电视服务的高度需求。通过遵循该标准，并根据不同国家的要求进行适当的调整，开发者可以生产出具有良好用户体验的数字电视机顶盒，为用户提供更丰富、更智能的观看体验。总之，日本ISDB标准的服务信息协议是一项关键技术，适用于数字电视机顶盒的开发和使用。它的推出和发展促进了数字电视技术的普及和提升，为用户提供了更好的观看体验。同时，不仅在日本，巴西和菲律宾等地也广泛采用了该标准，实现了数字电视技术的共享和互通。未来，随着数字电视技术的不断发展，这一标准将继续演化和完善，为用户带来更多的惊喜和便利。

ARIB STD - B10

Version 4.6-E2

─ 6 ─

4. Types of Service Information

4.1 Types of table

Types of table used for Service Information are shown in table 4-1. Tables used for digital broad-

casting other than Service Information are shown in table 4-2.

Tables established by the companies should be registered and released as company signals.

Table 4-1 Names and functions of Service Information tables

Table name Functions

PAT*

(Program Association Table)

Designates packet identifier of TS packet carrying PMT related

to broadcasting program.

CAT*

(Conditional Access Table)

Designates packet identifier of the TS packet conveying indi-

vidual information among related information of charged

broadcasting.

PMT*

(Program Map Table)

Designates packet identifier of TS packets conveying each

coded signal comparing a broadcasting program and packet

identifier of TS packets conveying common information among

related information of charged broadcasting. .

NIT*

(Network Information Table)

Conveys information about the transmitting path such as modu-

lation frequency and its relation to broadcasting programs.

SDT

(Service Description Table)

Conveys information related to programmed channel such as

channel name and broadcaster’s name.

BAT

(Bouquet Association Table)

Conveys information related to bouquet (set of programmed

channels) such as names of bouquet and programmed channels

in it.

EIT

(Event Information Table)

Conveys information related to program such as program name,

broadcasting date and time, and explanation of contents.

RST

(Running Status Table)

Indicates program running status.

TDT

(Time and Date Table)

Indicates present date and time.

TOT

(Time Offset Table)

Indicates present date and time, and designates time difference

between present time and indication time for humans.

LIT

(Local Event Information Table)

Conveys information related to local event such as discrimina-

tion (time), name and explanation of local event (scene etc.) in

the program.

ERT

(Event Relation Table)

Indicates relationship between programs or local events, such as

groups and attributes of programs or local events.

ITT

(Index Transmission Table)

Describes information related to program index when sending

the program.

PCAT

(Partial Content Announcement Table)

Indicates transmission schedule of partial content in data

broadcasting.

(Stuffing Table)

Makes table invalid.

BIT

(Broadcaster Information Table)

Designates unit of broadcaster and SI transmission parameter of

each broadcaster unit.

NBIT Conveys network board information and reference information

ARIB STD - B10

Version 4.6-E2

─ 7 ─

(Network Board Information Table) to gain the network board information.

LDT

(Linked Description Table)

Conveys information by which reference information from other

tables is collected.

Table set by the companies To be registered and released

*: Table specified in Ministerial Ordinance

Table 4-2 Names and functions of tables used in digital broadcasting (excluding SI.)

Table name Function

ECM

(Entitlement Control Message)

Conveys common information consisting of program informa-

tion (information related to programs and descramble key, etc.)

and control information (instruction of compulsory on/off of

decoder's descramble function).

EMM

(Entitlement Management Message)

Conveys individual information including contract information

of each subscriber and work key to decrypt common informa-

tion.

ECM-S

(Entitlement Control Message for S-band)

Conveys information related to programs and key information

to decrypt, and/or individual contract information of domestic

audiences.

EMM-S

(Entitlement Management Message for

S-band)

Conveys key information to decrypt ECM-S.

DCT

(Download Control Table)

Conveys various information to separate and extract DLT.

DLT

(DownLoad Table)

Conveys software to be downloaded.

DIT

(Discontinuity Information Table)

Indicates changing point where possible discontinuity of service

information exists in a program transmitted by partial Transport

Stream.

SIT

(Selection Information Table)

Conveys information related to programs transmitted by partial

Transport Stream.

SDTT

(Software Download Trigger Table)

Conveys notification information for download such as service

ID, schedule and receiver types for revision.

CDT

(Common Data Table)

Conveys data commonly required for receivers and stored in

non-volatile memory such as company’s logo marks.

DSM-CC section

Conveys various data in data broadcasting.

AIT (Application Information Table) Conveys dynamic control information concerning ARIB-J Ap-

plication and additional information for the execution.

*1: Table specified in the Notification No. 37 of the Ministry of Public Management, Home Affairs,

Posts and Telecommunications in 2003 (hereinafter referred to as "Notification")

*2: Table specified in ARIB STD-B1 and B21

*3: Table specified in ARIB STD-B16

*4: Table specified in ARIB STD-B24

*5: Table specified in ARIB STD-B23

4.2 Types of descriptor

Types of descriptor used in Service Information are shown in table 4-3, and descriptors used in

digital broadcasting other than Service Information are shown in table 4-4.

ARIB STD - B10

Version 4.6-E2

─ 8 ─

Descriptors set by the companies should be registered and released as "Company signal".

Table 4-3 Names and function of descriptors in Service Information

Descriptor name Function

Conditional Access Descriptor

Describes PID conveying conditional access method and

ECM & EMM.

Identifies copyright.

Network Name Descriptor Describes network name.

Service List Descriptor

Describes programmed channels and their list of type.

Stuffing Descriptor Secures descriptor space or invalidates descriptor.

Satellite Delivery System Descriptor

Describe physical characteristics of satellite transmission path

Terrestrial Delivery System Descriptor

Describes physical characteristics of terrestrial transmission

path

Bouquet Name Descriptor Describes name of bouquet

Service Descriptor Describes names of programmed channel and company

Country Availability Descriptor Describes countries intended to be available with the service

Linkage Descriptor Describes relation to other programmed channels

NVOD Reference Descriptor

Describes a list of time-shifted programmed channels for a

reference Near VOD programmed channel.

Time Shifted Service Descriptor

Describes a reference programmed channel for a Near VOD

time-shifted programmed channels.

Short Event Descriptor Describes name and brief explanation of the program.

Extended Event Descriptor Describes detailed information about the program

Time Shifted Event Descriptor

Describes the reference program for Near VOD time-shifted

programs.

Component Descriptor

Describes types and explanation related to program element

signal.

Mosaic Descriptor

Describes unit of division related to mosaic (picture division)

service and relation with other programmed channels and

programs, etc.

Stream Identifier Descriptor Identifies individual program element signal.

CA Identifier Descriptor Describes available conditional access method.

Content Descriptor Describes program genre.

Parental Rating Descriptor Describes permitted minimum audience age.

Hierarchical Transmission Descriptor

Describes relation between hierarchical streams in hierarchi-

cal transmission.

Digital Copy Control Descriptor

Describes information controlling copy generation in digital

recording equipment and maximum transmission rate.

Emergency Information Descriptor

Describes information and function necessary for emergency

alarm signal.

Data Component Descriptor

Identifies data signal format.

System Management Descriptor

Identifies broadcasting/non-broadcasting.

ARIB STD - B10

Version 4.6-E2

─ 9 ─

Local Time Offset Descriptor

Describes time difference between the present time (UTC + 9

hours) and indication time to human when summer time (day-

light saving time) system is introduced.

Audio Component Descriptor

Describes parameters related to audio signal among program

elements.

Target Region Descriptor Describes target region.

Hyperlink Descriptor

Describes links to other programs, program contents and pro-

gram related information.

Data Content Descriptor

Describes detailed information related to contents of each data

program.

Video Deocode Control Descriptor Controls video decoding at event change.

Basic Local Event Descriptor Describes information for local event identification.

Reference Descriptor Describes node reference from programs and local events.

Node Relation Descriptor Describes relation between nodes.

Short Node Information Descriptor Describes node name and brief explanation.

STC Reference Descriptor

Describes relation between identification time of local event

and STC.

Partial Reception Descriptor

Describes service identifier transmitted by partial reception

hierarchy on terrestrial transmission path.

Series Descriptor Describes series information among multiple events.

Event Group Descriptor Describes grouping information of multiple events.

SI Parameter Descriptor

Describes SI transmission parameter (periodic group and re-

sending period, etc.).

Broadcaster Name Descriptor Describes broadcaster name.

Component Group Descriptor Describes grouping information of plural components.

SI Prime TS Descriptor

Describes identifier information of SI prime TS and transmis-

sion parameter.

Board Information Descriptor Describes title and text of board information.

LDT linkage Descriptor Collects and conveys descriptions referred from other tables.

Connected Transmission Descriptor

Describes physical characteristics of connected transmission

in terrestrial audio transmission path

TS Information Descriptor

Describes information related to TS such as allocation of the

remote control key number to the TS and the transmission

layer of service in the TS.

Extended Broadcaster Descriptor Describes broadcaster information of other networks.

Logo Transmission Descriptor

Describes character string for simple logo or pointing to

CDT-format logo data.

Content Availability Descriptor

Describes information to control record and output of pro-

grams.

Carousel Compatible Composite Descriptor

Applies the descriptive functions of the descriptors defined in

the Data Carousel scheme.

Conditional Playback Descriptor

*1,*2

Describes PID conveying conditional playback method and its

ECM and EMM.

AVC Video Descriptor

Describes profile and level for

ITU-T Rec. H.264|ISO/IEC

14496-10 Video.

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