M60 广播、电视网综合 标准查询与下载

ITU-R BT.1786 FRENCH-2007 衡量干扰对陆地广播业务(BS)的影响的评估标准

The Radio Regulations have established criteria with regard to the amount of interference allowed between the broadcasting service and other services with a frequency allocation. This Recommendation provides a guideline for an acceptable limit for total interference to the terrestrial broadcasting services that may result from the emissions of radio devices.

Criterion to assess the impact of interference to the terrestrial broadcasting service (BS)

ITU-R BO.1724-1-2007 交互卫星广播系统(电视、声音和数据)

This Recommendation intends to specify the interactive satellite broadcasting systems (television, sound and data) under Question ITU-R 26/6 when a satellite return channel using geostationary-satellite systems is operated using the System A in Recommenda

Interactive satellite broadcasting systems (television sound and data)

ITU-T G.109 AMD 1 SPANISH-2007 语音传输质量的类别定义.1号修正案:1号新附录.预测语音传输质量和用户在时变传输损伤时的用户满意度的基于E模式的质量轮廓.12号研究组

En este apéndice se presentan los contornos de calidad de transmisión vocal (o contornos de satisfacción del usuario) quepueden utilizarse para predecir la calidad de transmisión vocal a partir de las degradaciones de transmisión variables en eltiempo. Los contornos de calidad se derivan del modelo E del UIT-T [UIT-T G.107], reduciéndolo únicamente a la capa de transporte (es decir, asumiendo los valores por defecto que caracterizan terminales perfectos). La forma de los contornos de calidad está determinada porla degradación de retardo, Idd, que abarca la pérdida de interactividad, y la degradación de equipo efectiva, Ie-eff, que comprende la pérdida de información debida al esquema de codificación y a la pérdida de paquetes. Los contornos de calidad propuestos determinan el factor dedeterminación de índices, R, para todas las combinaciones posibles de pérdida de paquetes (asumiendo un esquema de codificación dado) y retardo de boca a oído (asumiendo conexiones sin eco). Los contornos de calidad pueden utilizarse para la optimización transversal de varias capas de comunicación (por ejemplo, plan de reproducción adaptativo en la capa de aplicación, diferenciación del tráfico en la capa MAC) al predecir la calidad de transmisión vocal de extremo a extremo a partir de las degradaciones de transmisión variables en el tiempo.

Definition of categories of speech transmission quality Amendment 1: New Appendix I The E-model-based quality contours for predicting speech transmission quality and user satisfaction from time-varying transmission impairments Study Group 12

ITU-R QUESTION 225-5/3-2007 包括使用数字调制技术在内的影响低频(LF)和中频(MF)的系统传播的因素预测

The ITU Radiocommunication Assembly considering a)that Recommendation ITU-R P.368 presents ground-wave propagation curves for frequencies between 10 kHz and 30 MHz and that Recommendation ITU-R P.684 and Recommendation ITU-R P.1147 describe procedures for predicting sky-wave propagation at frequencies below about 150 kHz and at frequencies between about 150 and 1 700 kHz, respectively; b)that most of these and other available prediction methods are intended primarily for narrow-band or analogue systems.

The prediction of propagation factors affecting systems at LF and MF including the use of digital modulation techniques

ITU-R BT.814-2 FRENCH-2007 显示器亮度和对比度设置的规范和调准过程

This Recommendation defines a test signal for the adjustment of Cathode Ray Tubes (CRTs) and Flat Panel Display (FPD) devices. The signal may be used to set displayed image values for both standard definition television and high definition television.

Specifications and alignment procedures for setting of brightness and contrast of displays

ITU-R BT.814-2 SPANISH-2007 显示器亮度和对比度设置的规范和调准过程

This Recommendation defines a test signal for the adjustment of Cathode Ray Tubes (CRTs) and Flat Panel Display (FPD) devices. The signal may be used to set displayed image values for both standard definition television and high definition television.

Specifications and alignment procedures for setting of brightness and contrast of displays

ANSI/TIA-902.BAEB-A-2007 宽频带空中接口.数据包规范.公共安全宽频带数据标准方案.数字无线电技术标准

The scope of this document is to define the Packet Data Specification of the wideband air interface (WAI). The wideband air interface called Uw is the interface between the fixed network equipment (FNE) and the subscriber units, or directly between subscriber units in a wideband system. The general wideband system model is shown in Figure 1 below and illustrates the Radio to FNE Mode of operation.

Wideband Air Interface Packet Data Specification - Public Safety Widebacnd Data Standards Project - Digital Radio Technical Standards

ITU-T J.122-2007 交互式有线电视业务的第二代传输系统.IP电缆调制解调器.9号研究组

This Recommendation defines the second generation ofradio-frequency interface specifications for high-speed data-over-cable systems.

Second-generation transmission systems for interactive cable television services IP cable modems Study Group 9

ITU-T G.108.2 AMD 1-2007 回波消除器的输电规划.1号修正案:新附录3使用回波消除器防止低回声.12号研究组

Echo control has proven to be a major challenge inefforts to deliver PSTN-equivalent voice quality in the VoIP environment. The primary echo problem encountered early in the VoIP evolution is referred to as “initial echo” where the customer hears echo on the first few syllables they speak at the beginning of a call. Fortunately, this problem has been significantly reduced by the introduction of network echo cancellers that have improved (i.e., faster) convergence speeds.

Transmission planning aspects of echo cancellers Amendment 1: New Appendix III Guidance for using echo cancellers to prevent low-level echo Study Group 12

DIN EN 300401:2006 无线电广播系统.移动式、便携式和固定式接收机接收的数字音频广播(DAB)

This document establishes a broadcasting standard for the Digital Audio Broadcasting (DAB) system designed for delivery of high-quality digital audio programme and data services for mobile, portable and fixed reception from terrestrial or satellite transmitters in the Very High Frequency (VHF)/Ultra High Frequency (UHF) frequency bands as well as for distribution through cable networks.#,,#

Radio Broadcasting Systems - Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers - (Endorsement of the English version EN 300401 V1.4.1 (2006-06) as German standard)

ITU-T H.249 SPANISH-2006 扩展用户输入指示.16号研究组

This Recommendation defines a method for signalling advanced user interface inputs using the structure of H.245. This Recommendation defines a mechanism for extension of the userInputIndicationmessage. The annexes to the Recommendation define the extensions themselves.

Extended User Input Indications Study Group 16

ITU-T H.249 FRENCH-2006 扩展用户输入指示.16号研究组

This Recommendation defines a method for signalling advanced user interface inputs using the structure of H.245. This Recommendation defines a mechanism for extension of the userInputIndicationmessage. The annexes to the Recommendation define the extensions themselves.

Extended User Input Indications Study Group 16

ITU-T H.460.21-2006 H.323信息广播

This Recommendation describes the signalling and procedures to provide a message broadcast feature for H.323 systems. The message broadcast feature is one wherein a message server or H.323 endpoint in the network transmits a message to one or more endpo

Message broadcast for H.323 systems

ITU-T H.245-2006 多媒体通信控制协议 研究组16

This Recommendation specifies syntax and semantics of terminal information messages as well as procedures to use them for in-band negotiation at the start of or during communication.

Control protocol for multimedia communication Study Group 16

ITU-T H.241-2006 (预发行)H.300系列终端的扩展视频规程和控制信号

The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical,

Extended video procedures and control signals for H.300-series terminals Study Group 16

BS EN 60728-11:2005 电视信号、声音信号和交互式服务用电缆网络.第11部分:安全

This part of IEC 60728 deals with the safety requirements applicable to fixed sited systems and equipment. As far as applicable, it is also valid for mobile and temporarily installed systems, for example, caravans. Additional requirements may be applied, for example, referring to ?electrical installations of buildings and overhead lines; ?other telecommunication services distribution systems; ?water distribution systems; ?gas distribution systems; ?lightning systems. This standard is intended to provide specifically for the safety of the system, personnel working on it, subscribers and subscriber equipment. It deals only with safety aspects and is not intended to define a standard for the protection of the equipment used in the system.

Cable networks for television signals, sound signals and interactive services - Part 11: Safety

ITU-R BO.1776-2006 在区域1和3中21.4-22.0波带内广播卫星业务的功率通量密度

This Recommendation addresses the intra-service sharing for GSO BSS systems in the band 21.4-22.0 GHz in Regions 1 and 3 that may be applied for systems operating in accordance with Resolution 525 (Rev.WRC-03).

Reference power flux-density for the broadcasting-satellite service in the band 21.4-22.0 GHz in Regions 1 and 3

ITU-R QUESTION 96-1/6-2006 媒体资产管理的用户需求和电视节目制作记录和归档的传输协议

The ITU Radiocommunication Assembly considering a) that programme content can be transferred either as a continuous stream or in the form of discontinuous files between different production and storage devices; b) that such data can be transferred through local and wide area networks; c) that all transfers require a number of operations to identify the source and destination of the file or stream; d) that issues of file management, transfer protocols and data interconnection must therefore be considered in television programme production, recording and archiving; e) that common machine control interfaces are required to enable users to switch easily between production and storage devices of different suppliers.

User requirements in the area of media asset management and transfer protocols for television programme production recording and archiving

ITU-T H.245 NOTE-2006 多媒体通信控制协议

ITU-T Recommendation H.245 (05/2006), Control protocol for multimedia communication

Control protocol for multimedia communication

GY/T 211-2005 广播影视网络专有IP地址规划

本标准规定了广播影视专有IP网络私有IP地址的规划原则、规划方法和总体分配方案。 本标准适用于广播影视专有IP网络的规划、建设、运营和管理。凡接入广播影视专有IP网络的各种全国性和区域性IP网络均应符合本标准的规定。

Dedicated IP address planning for Radio, Film and TV network