IEC 61904:2000 PDF

Name: IEC 61904:2000 — Video recording - Helical-scan digital component video cassette recording format using 12,65 mm magnetic tape and incorporating data compression (Format digital-L)
SKU: IEC 61904:2000
Price: 35 EUR
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Video recording - Helical-scan digital component video cassette recording format using 12,65 mm magnetic tape and incorporating data compression (Format digital-L)

Название (английский):

IEC 61904:2000

Video recording - Helical-scan digital component video cassette recording format using 12,65 mm magnetic tape and incorporating data compression (Format digital-L)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 167
Дата публикации:: 28 апреля 2000 г.
Издание:: IEC IS 61904 edition 1 version 1
ICS:: 33.160.40

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Срок поставки:28 раб. дн. (перевод)

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Описание (английский):

Applies to video cassette recording of digital component video signals and associated digital audio and related control signals on 12,65 mm magnetic tape. Specifies characteristics of the cassettes, the tape, the recording patterns, the processes of digital audio and video coding, data compression, error protection and channel coding, all required to ensure interchangeability.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

IEC 61904:2000 is an international standard published by the International Electrotechnical Commission (IEC) that defines the specifications for a helical-scan digital component video cassette recording format. This format uses 12.65 mm magnetic tape and incorporates data compression techniques. Known as Format Digital-L, the standard ensures interchangeability and quality in the recording and playback of digital component video signals, along with associated digital audio and control signals.

This standard applies broadly to the physical cassette, magnetic tape, recording patterns, and critical signal processing elements such as data compression, error protection, and channel coding. By defining these parameters, IEC 61904:2000 facilitates compatibility across different digital video recording equipment and promotes the reliable storage of high-quality video content.

Key Topics

Tape and Cassette Mechanics: Defines the key mechanical parameters of the 12.65 mm magnetic tape and cassette body to ensure durability and precise operation during helical-scan recording.

Helical-Scan Recording: Specifies tape speed, track locations, azimuth angles, and tolerance zones for the helical tracks, which are essential to achieving high-fidelity digital video recording.

Data Layout and Coding: Details the arrangement of data within program tracks and video/audio sectors, including sector labeling and data shuffling to optimize recording efficiency and error resilience.

Compression and Signal Processing:

Discrete Cosine Transform (DCT): Utilized for video compression to reduce data size without significant loss of quality.
Quantization and Variable Length Coding (VLC): Improve coding efficiency to optimize storage capacity.

Error Protection and Channel Coding: Implements outer error correcting codes (ECC) and channel coding techniques to reduce data errors and maintain playback integrity.

Audio-Video Interface: Defines how digital audio signals are synchronized and integrated with the digital video signals within the cassette format.

Longitudinal Tracks: Covers control tracks used for synchronization, cueing, time codes, and other control signals crucial for tape operation management.

Applications

IEC 61904:2000 is primarily targeted for use in professional and broadcast video recording environments that require reliable digital recording of component video signals on magnetic tape. Key applications include:

Broadcast Video Recording: Ensures standardized recording format for component digital video and high-fidelity audio, widely applicable in TV studios and video production.

Archival and Mastering: Provides a high-quality, compressed digital format suitable for long-term storage and preservation of video content.

Video Equipment Manufacturing: Serves as a technical guideline for manufacturers to develop compatible recording and playback devices.

Post-Production: Facilitates standardized tape interchangeability, enabling seamless editing and processing workflows across different equipment brands.

Related Standards

IEC 60050: International Electrotechnical Vocabulary - Provides terminology definitions used in this and other IEC standards.

IEC 60027 / IEC 60417 / IEC 60617 - These standards define graphical and letter symbols referenced within IEC 61904 for electrical and electronic apparatus.

Other Video Recording Standards - Related digital tape formats specified by IEC and other bodies address various tape widths and recording methods, offering options suited to diverse professional video recording needs.

By adhering to IEC 61904:2000, organizations benefit from a comprehensive framework for efficient, interoperable, and high-quality digital video cassette recording, leveraging robust data compression and error correction technologies to safeguard video and audio signal integrity on 12.65 mm magnetic tape.

IEC 61904:2000 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

IEC 60050-161:1990/AMD2:1998

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

IEC 60027-1:1992/AMD2:2005

Amendment 2 - Letter symbols to be used in electrical technology - Part 1: General

IEC 60417-2:1998/AMD2:2002

Amendment 2 - Graphical symbols for use on equipment - Part 2: Symbol originals