IEC 61883-7:2003 PDF

Name: IEC 61883-7:2003 — Consumer audio/video equipment - Digital interface - Part 7: Transmission of ITU-R BO.1294 System B
SKU: IEC 61883-7:2003
Price: 35 EUR
Availability: InStock

Consumer audio/video equipment - Digital interface - Part 7: Transmission of ITU-R BO.1294 System B

Название (английский):

IEC 61883-7:2003

Consumer audio/video equipment - Digital interface - Part 7: Transmission of ITU-R BO.1294 System B

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 28 января 2003 г.
Издание:: IEC IS 61883 edition 1 version 1
ICS:: 33.160.01

Тип поставки:

Full version210 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:3 раб. дн. (перевод)

Цена:210 €

Описание (английский):

IEC 61883-7:2003 defines packetization and transmission for transport streams of ITU-R BO.1294 system B (DirecTV system/DSS) over the IEEE 1394 Serial Bus. This bilingual version (2012-08) corresponds to the monolingual English version, published in 2003-01.

Abstract

Overview

Key topics and technical requirements

Source packet structure: A DSS source packet is 140 bytes - a 130 B DSS transport stream packet plus a 10 B DSS packet header. A separate source packet header (4 B) containing timestamps is added for timing recovery.
DSS packet header: Includes a System Clock Count (23‑bit field) and flags such as SIF (invalid flag) and EF (error flag). The clock count synchronizes to the MPEG system clock and assists bit‑stream recorders (e.g., D‑VHS) in clock recovery.
Timing and timestamps: The source packet header carries cycle_count (13 bit) and cycle_offset (12 bit) fields derived from the IEEE 1394 CYCLE_TIME register. These timestamps indicate the intended delivery time at the receiver’s T‑STD (Transport Stream Target Decoder).
Smoothing and jitter control: The standard describes use of a smoothing buffer to reduce bandwidth when program selection occurs; smoothing introduces time shifts that are compensated with timestamps. Receivers use a receiver buffer to absorb IEEE 1394 transmitter jitter.
Isochronous/CIP packaging: DSS uses the IEEE 1394 isochronous transport with a two‑quadlet CIP header format. CIP fields defined include DBS (data block size), FN (fractions per source packet), DBC (data block counter rules), FMT (DSS format) and FDF (including TSF - timeshift flag).
Fragmentation rules: Source packets are split into data blocks (fractions) of 9 quadlets and packed into isochronous packets; rules control DBC progression and alignment.

Applications and who uses it

Implementers of set‑top boxes, satellite receivers (DSS/DirecTV) and consumer A/V devices using IEEE 1394 for packetized broadcast transport.
Chipset and firmware developers building IEEE 1394 isochronous transmitters/receivers, CIP header handlers and timestamp logic.
Recorders and playback devices (e.g., digital VCR/bit‑stream recorders) that need accurate system clock recovery and jitter compensation.
System integrators and test labs validating conformance to packetization, timing and buffering requirements.

Related standards

IEC 61883‑1 (General)
ITU‑R BO.1294:1997 (DSS functional requirements)
IEEE 1394:1995 and IEEE 1394a:2000 (High Performance Serial Bus)

Keywords: IEC 61883‑7, DSS, DirecTV, ITU‑R BO.1294, IEEE 1394, FireWire, transport stream, isochronous packets, CIP header, packetization, timestamps, jitter compensation.

Технические детали

Технический комитет: TC 100 - Audio, video and multimedia systems and equipment
SKU: IEC 61883-7:2003

Главная

Каталог

IEC 61883-1:2008

Действующий

Consumer audio/video equipment - Digital interface - Part 1: General

Overview IEC 61883-1:2008 - Consumer audio/video equipment - Digital interface - Part 1: General - defines a digital interface for consumer A/V equipment using IEEE 1394 (FireWire). This third editio…

42 · PDF

35 €

IEC 60050-161:1990/AMD2:1998

Действующий

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 161: Electromagnetic compatibility

IEC 60050-161:1990/AMD2:1998 – Electromagnetic Compatibility Vocabulary Amendment ### Overview The IEC 60050-161:1990/AMD2:1998 is the second amendment to the International Electrotechnical Vocabular…

21 · PDF

35 €