高清视频接口标准：ANSI/SMPTE 292M-1996详解

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"ANSI/SMPTE 292M-1996是高清HD-SDI接口标准，详述了在1.3至1.5 Gb/s数据速率范围内的高清晰度电视组件信号的串行数字同轴和光纤接口。标准涵盖源格式的并行数据复用和序列化，以及基于必要修改的共同数据格式和通道编码。适用于信号损失不超过接收器制造商指定量的同轴电缆接口应用，通常在时钟频率一半时损失可达20dB。光纤接口适用于长达2公里的单模光纤应用。标准引用了多种源格式，并定义了序列化技术，未来修订可能会加入其他批准的源格式。" 正文： ANSI/SMPTE 292M-1996标准是针对高清视频信号传输的重要规范，它规定了在高清晰度电视（HDTV）系统中，如何以串行数字方式通过同轴电缆和光纤接口传输数据。该标准的目的是确保在不同设备间能够无缝且高效地传输高清视频信号，以满足专业广播和影视制作的需求。 1. 高清SDI接口：此标准定义了一种比特串行数字同轴和光纤接口，用于操作在1.3至1.5 Giga位每秒（Gb/s）的数据速率范围内。这种接口允许从特定的源格式中提取并行数据，然后将其序列化成串行数据流。这一过程确保了数据的完整性和一致性。 2. 数据格式和编码：ANSI/SMPTE 292M-1996采用了一种通用的数据格式和通道编码，这些可能根据源格式的并行数据进行必要的修改。这种编码方式有助于防止传输过程中的错误，并确保信号的保真度。 3. 接口兼容性：同轴电缆接口适用于信号损失不超出接收器制造商规定的应用场景，比如信号在传播过程中可能出现的衰减。而光纤接口则提供了更远距离的传输能力，最长可达2公里，尤其适用于单模光纤，这极大地扩展了高清视频信号的传输范围。 4. 源格式的多样性：标准引用了多种源格式，并允许在覆盖的数据速率范围内使用定义的技术序列化其他格式。这为适应不同的视频系统和应用提供了灵活性。 5. 标准修订与扩展：随着技术的进步，此标准可能会随着新批准的文档发布而进行更新，添加更多的源格式，以适应不断发展的高清视频处理和传输需求。 ANSI/SMPTE 292M-1996标准对于高清视频制作、播放和传输行业至关重要，它提供了可靠、一致的接口标准，促进了高质量视频内容在全球范围内的分发和共享。无论是广播中心、演播室还是远程拍摄现场，都依赖于这种标准来确保视频信号的无损传输和完美呈现。

1 Scope

This standard defines a bit-serial digital coaxial and

fiber-optic interface for HDTV component signals

operating at data rates in the range of 1.3 Gb/s to 1.5

Gb/s. Bit-parallel data derived from a specified source

format are multiplexed and serialized to form the serial

data stream. A common data format and channel

coding are used based on modifications, if necessary,

to the source format parallel data for a given high-

definition television system. Coaxial cable interfaces

are suitable for application where the signal loss does

not exceed an amount specified by the receiver manu-

facturer. Typical loss amounts would be in the range

of up to 20 dB at one-half the clock frequency. Fiber

optic interfaces are suitable for application at up to 2

km of distance using single-mode fiber.

Several source formats are referenced and others

operating within the covered data rate range may be

serialized based on the techniques defined by this

standard. Revisions to this standard may add other

source formats when approved documents are avail-

able.

2 Normative references

The following standards contain provisions which,

through reference in this text, constitute provisions of

this standard. At the time of publication, the editions

indicated were valid. All standards are subject to

revision, and parties to agreements based on this

standard are encouraged to investigate the possibility

of applying the most recent edition of the standards

indicated below.

SMPTE 260M-1992, Television ---- Digital Repre-

sentation and Bit-Parallel Interface ----1125/60 High-

Definition Production System

ANSI/SMPTE 274M-1995, Television ---- 1920 × 1080

Scanning and Interface

ANSI/SMPTE 291M-1996, Television ---- Ancillary

Data Packet and Space Formatting

SMPTE RP 184-1995, Measurement of Jitter in Bit-

Serial Digital Interfaces

IEC 169-8 (1978), Part 8: R.F. Coaxial Connectors with

Inner Diameter of Outer Conductor 6.5 mm (0.256 in)

with Bayonet Lock ---- Characteristic Impedance 50

Ohms (Type BNC), and Appendix A (1993)

IEC 793-2 (1992), Optical Fibres, Part 2: Product

Specifications

IEC 874-7 (1990), Part 7: Fibre Optic Connector

Type FC

3 Definition of terms

3.1 source format: Data structure and documen-

tation which defines the bit-parallel input to the

serialization process for a given high-definition

television system. Source formats are referenced

in SMPTE 260M and ANSI/SMPTE 274M.

3.2 interim specifications: Values given in

brackets are interim and subject to revision

following further investigation by the SMPTE

Committee on Television Signal Technology

(see 8.1.2, 8.1.9, 8.2.1, and 9.1).

4 Source format data

4.1 Source data shall be 10-bit words repre-

senting an E

′,

′, E

′ signal, where E

′ is

one formatted parallel data stream and E

′

for Television ----

Bit-Serial Digital Interface for

High-Definition Television Systems

CAUTION NOTICE: This Standard may be revised or withdrawn at any time. The procedures of the Standard Developer require that action be taken to reaffirm, revise,

or withdraw this standard no later than five years from the date of publication. Purchasers of standards may receive current information on all standards by calling or

writing the Standard Developer. Printed in USA.

ANSI/SMPTE 292M-1996

SMPTE STANDARD

Page 1 of 9 pages

Approved

May 7, 1996

MOTION PICTURE AND TELEVISION ENGINEERS

595 W. Hartsdale Ave., White Plains, NY 10607

(914) 761-1100

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高清视频接口标准：ANSI/SMPTE 292M-1996详解

SMPTE259，SMPTE292，SMPTE424等标准

SMPTE-292m标准

SMPTE292M-1998

SMPTE 334M-2000

SMPTE 272M-2004

SMPTE 352M-2001

SMPTE_274-1998

SMPTE_377m-2004

SMPTE 334M-2000: 视频信号中数据编码与传输标准

SMPTE 305.2M-2000

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