共找到 150 条与 buffer 相关的标准，共 10 页
AIM The aim of this NATO standardization agreement (STANAG) is to respond to the following interoperability requirements. INTEROPERABILITY REQUIREMENTS To provide a specification for the automatic data exchange through a buffer@ of tactical information among systems using Link 1@ Link 11 and Link 11B. AGREEMENT Participating nations agree to implement the following standard.
DATA LINK INTERFACING STANDARDS 1, 11 AND 11B VIA A GATEWAY (ED 7)
This Recommendation defines models to estimate the buffer occupancy and operational state used in client media players employing TCP transport and other forms of reliable transport. The measurement point(s) provide an observation point on TCP connection(s) primarily within the end-to-end path@ where input data are collected. The scope of work can be described in terms of inputs and outputs of the model(s): Exact procedures for processing network layers and subsequent container processing are beyond the scope of this Recommendation@ as it is highly variable and obviously must be matched to the specific circumstances. However@ general guidance for readers is provided. Inputs ?C Frames or partial frames (audio/visual (A/V) frames) pertaining to the reliable transport connection(s) in use and the time stamp when each packet appears at the measurement point. Normal operation considers both directions of transmission. Alternatively@ meta-data from the container or streaming media application layer and network layers may be used whenever present. Outputs ?C for each model state change@ it is required to report the new state name@ the timestamp of the change in units of measure equal to 1 millisecond resolution. Optionally@ the current buffer fill level in units of milliseconds is reported for each change. There is optional periodic reporting of the buffer fill level with timestamp and current state name. Also@ the frame type and size information that is played-out may be reported and for some models@ the complete media stream information. Furthermore@ if there are multiple video streams (e.g.@ in the adaptive case) a possible stream change could be reported. When available for each frame@ there shall be a descriptive tuple containing a synthesized or decoded status@ frame type@ frame size in bytes@ duration in time (ms) represented by the frame@ and the payload bytes. The frame type should be registered (somewhere) and referenced in the type value. Operation ?C there are scenarios where it may not be possible to access the media frame boundaries within the A/V stream@ such as when the media is encrypted or an un-decodeable media format is encountered. In such cases@ the set of default frame tuples within a container may be synthesised@ and the distinction between decoded frame boundaries and synthesised frames shall be indicated. When a sufficiently long pause is detected in the TCP stream (or media flow) and a waiting time for resumption of the TCP stream expires@ the monitoring system declares an End of stream if the buffer is coincidentally depleted@ and normal operation should cease. All stored state@ including buffer state and queuing diagnostic information may be made available for on demand retrieval. Some network analysis is allowed to assist the mid-path monitoring to determine frame arrival time and other signals that are inputs to the model (the details of complex network interactions are out of the scope of the Recommendation@ but some general guidance is provided). Advertisements interjected in user sessions are extremely important to the business of video delivery@ and evaluation of their delivery may need to be separate to meet the needs of performance management. NOTE ?C Non-reliable and UDP streams are outside of the scope of this Recommendation; they are covered in [b-ITU-T G.1021].
Buffer models for media streams on TCP transport (Study Group 12)
This document defines several subsets of the syntax specified in ISO/IEC 21122-1 as profiles. It also defines lower bounds on the throughput in the decoded domain via levels and the encoded domain via sublevels that a conforming decoder implementation shall support. Furthermore, it defines a buffer model to ensure interoperability between implementations in the presence of a latency constraint.
Information technology — JPEG XS low-latency lightweight image coding system — Part 2: Profiles and buffer models
本文件描述了用于测试GSM和3G网络用户身份模块中实现的C编程语言3GPP TS 31.131 [11] SIM API的技术特性和测试方法。它规定了以下部分： - 测试适用性 - 测试环境描述 - 测试格式 - 测试区域参考 - 符合性要求 - 测试套件文件 - 测试程序 - 测试覆盖范围 - 以及可能使用的相关测试工具的描述。
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Test Specification for C-language binding to (Universal) Subscriber Interface Module ((U)SIM) Application Programming Interface (API) (...
本标准规定了安装在曳引电梯、卷筒电梯和液压电梯上的缓冲器的安全条件。
Buffer for elevators
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Standard Test Method for Determining Cement Content of Fresh Soil-Cement (Heat of Neutralization Method)
The present document defines the Jitter Buffer Management solution for the Codec for Enhanced Voice Services (EVS).
Universal Mobile Telecommunications System (UMTS); LTE; Codec for Enhanced Voice Services (EVS); Jitter Buffer Management (3GPP TS 26.448 version 17.0.0 Release 17)
本文档的目标是描述3GPP分组交换流服务（PSS）。为此，文档考虑了底层网络配置的影响以及流机制本身如何优化。本文档的范围包括（非穷。┛悸：? 无线使用效率与流媒体QoS之间的权衡? 网络条件的反馈以及流和/或流传输的适应? 与传输机制中的分段相符的媒体流的最佳打包? 错误鲁棒性机制（如重传）客户缓冲以减轻网络上的QoS要求，并更灵活地应用网络传输资源。
Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming Service (PSS); Real-time Transport Protocol (RTP) usage model (V14.0.0; 3GPP TR 26.937 version 14.0.0 Release 14)
抖动缓冲器和回声消除器对电信网络中的语音和数据传输质量有重大影响。它们影响语音频段、数据、传真、文本电话和无限制数字信息（UDI）的传输。由于不同服务对抖动缓冲器和回声消除器的设置要求不同，本文档描述了抖动缓冲器和回声消除器的激活和模式切换程序，包括带内音调激活和其他控制机制的要求。本文档不适用于使用ITU-T建议T.38 [i.8]的传真传输。假定所有相关元素的时钟精度足够高以应用本文档。
Speech and multimedia Transmission Quality (STQ); Procedures for the identification and selection of common modes of de-jitter buffers and echo cancellers
本文件提供了在VoIP（IP语音）服务段连接处需要考虑的质量参数指南，并为这些参数提供了目标指南。在TISPAN NGN整体架构（见图1）内，本文件仅考虑传输层。
Speech and multimediaTransmission Quality (STQ); Guidance on objectives for Quality related Parameters at VoIP Segment-Connection Points; A support to NGN transmission planners
本标准规定了测定乳制品pH值的方法。
General methods and principles of chemical and physical test methods for the dairy industry Determination of pH values
本文件定义了增强语音服务（EVS）编解码器的抖动缓冲区管理解决方案。
Universal Mobile Telecommunications System (UMTS); LTE; EVS Codec Jitter Buffer Management (3GPP TS 26.448 version 12.0.0 Release 12)
本部分 IEC 61158 提供了自动化环境中美利体育官网首页网址之间基本时间关键消息通信的通用元素。术语“时间关键”用于表示存在一个时间窗口，在该窗口内需要以一定的确定性水平完成一个或多个指定动作。未能在时间窗口内完成指定动作可能导致请求动作的应用程序失败，进而危及美利体育官网首页网址、工厂甚至人身安全。 本标准以抽象方式定义了类型1现场总线数据链路层提供的外部可见服务，包括：a) 服务的原始动作和事件；b) 与每个原始动作和事件相关联的参数及其形式；c) 这些动作和事件之间的相互关系及其有效序列。 本标准的目的是定义提供给以下方面的服务：? 现场总线参考模型中应用层与数据链路层边界处的类型1现场总线应用层；? 现场总线参考模型中数据链路层与系统管理边界处的系统管理。 本标准的主要目标是规定适用于时间关键通信的概念数据链路层服务的特性，从而补充OSI基本参考模型，指导时间关键通信数据链路协议的开发。次要目标是提供从现有工业通信协议的迁移路径。 本标准不规定个别实现或产品，也不限制工业自动化系统中数据链路实体的实现。美利体育官网首页网址不直接符合此数据链路层服务定义标准，而是通过实现符合本标准定义的类型7数据链路层服务的相应数据链路协议来实现符合性。
Industrial communication networks - Fieldbus specifications - Part 3-1: Data-link layer service definition - Type 1 elements (Endorsed by AENOR in December of 2014.)
本推荐标准以抽象方式定义了RAF服务，包括： a) 提供服务所需的操作； b) 与每个操作相关的参数数据； c) 每个操作调用所导致的行为； d) 操作与结果行为之间的关系及有效顺序。 不涉及： a) 具体实现或产品； b) 实际系统中实体或接口的实现； c) 从航天器接收信号获取遥测帧的方法或技术； d) 提供合适通信环境的方法或技术； e) 安排、配置和控制RAF服务所需的管理活动。
Space data and information transfer systems. Space link extension (SLE). Return-all-frames service specification
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Standard Test Method for On-Line Measurement of pH
