headend

简明释义

英[ˈhedend]美[ˈhedend]

n. 头端，首端；数据转发器

英英释义

单词用法

同义词

反义词

例句

1.The headend, consisting of content providers and equipment (such as the satellite receiver, encoders, and so on) needed to transmit and receive digital assets, onto the IP network.

数据转发器，包含内容提供者和用于在IP网络上传输和接收数字资产所需的设备(如卫星接收器、编码器等)。

2.The paper introduces the integrated digital video data broadcasting system based on the cable network. We discuss the structure of headend system and the implementation of terminal equipment.

本文介绍了应用于有线电视网上的综合数字视频数据广播系统，重点描述了前端系统的结构和后端设备的实现。

3.The feasibility of removing graphite by fixed bed burning technology in the headend process of HTGR graphite ball-element reprocessing is discussed.

讨论了高温气冷堆元件球后处理首端过程用固定床燃烧法去除石墨的可行性。

4.The paper introduces the integrated digital video data broadcasting system based on the cable network. We discuss the structure of headend system and the implementation of terminal equipment.

本文介绍了应用于有线电视网上的综合数字视频数据广播系统，重点描述了前端系统的结构和后端设备的实现。

5.The paper narrates theories of that, and details the technique on headend and resource security.

详细描述了头端和资源保护两个方面的研究。

6.The technician checked the headend equipment for any issues.

技术人员检查了头端设备是否存在问题。

7.Our new headend supports 4K streaming capabilities.

我们的新头端支持4K流媒体功能。

8.A malfunction at the headend caused a temporary outage in our service.

在头端的故障导致我们的服务暂时中断。

9.Streaming services often rely on a robust headend for content delivery.

流媒体服务通常依赖于强大的头端进行内容传输。

10.The cable company upgraded its headend to improve signal quality.

有线电视公司升级了其头端以改善信号质量。

作文

In the world of telecommunications and broadcasting, the term headend refers to a critical facility that serves as the starting point for delivering television signals and other data to consumers. The headend is where various signals, including cable, satellite, and terrestrial broadcasts, are collected, processed, and then distributed through a network to reach homes and businesses. Understanding the role of the headend is essential for anyone interested in how media content is delivered to viewers.The functionality of a headend can be likened to a central hub in a transportation system. Just as a hub connects various routes to facilitate travel, a headend connects different types of signals and formats, enabling seamless access to a wide array of programming. This facility is equipped with sophisticated technology that allows for signal modulation, encoding, and encryption, ensuring that the content is not only delivered efficiently but also securely.One of the primary functions of a headend is to aggregate content from multiple sources. For instance, a cable television provider might receive signals from local broadcasters, satellite feeds, and even streaming services. By bringing all these inputs together at the headend, the provider can create a comprehensive package of channels and on-demand options for subscribers. This aggregation makes it possible for consumers to enjoy a diverse range of programming from a single service provider.Additionally, the headend plays a vital role in content management. It is responsible for managing the quality of the signals being transmitted. This includes adjusting the signal strength, mitigating interference, and ensuring that the video and audio quality meet industry standards. Without a well-functioning headend, viewers could experience disruptions, such as pixelation or loss of sound, which would detract from their viewing experience.Moreover, the headend is integral to the implementation of interactive services. Many modern television systems allow viewers to interact with content, whether it's through video on demand, pay-per-view options, or interactive advertising. The headend manages these services by processing requests from users and delivering the appropriate content in real time. This capability has transformed the way audiences engage with media, making it more personalized and user-friendly.As technology evolves, so does the function of the headend. With the rise of internet protocol television (IPTV) and over-the-top (OTT) services, traditional headend facilities are adapting to accommodate new delivery methods. This shift has led to the development of cloud-based headend solutions, which offer greater flexibility and scalability. Providers can now manage their content distribution more effectively, allowing them to respond swiftly to changing viewer demands and market trends.In conclusion, the headend is an indispensable component of the telecommunications landscape. It serves as the backbone of content delivery, ensuring that viewers receive high-quality programming while also facilitating interactive features. As the industry continues to innovate, the headend will remain at the forefront of technological advancements, shaping the future of how we consume media. Understanding the significance of the headend not only enriches our knowledge of broadcasting but also highlights the complexities involved in delivering the entertainment we often take for granted.

在电信和广播的世界中，术语headend指的是一个关键设施，它作为向消费者传递电视信号和其他数据的起点。headend是各种信号的汇集地，包括有线、卫星和地面广播，这些信号在这里被收集、处理，然后通过网络分发到家庭和企业。理解headend的角色对于任何对媒体内容如何传递给观众感兴趣的人来说都是至关重要的。headend的功能可以类比于交通系统中的中央枢纽。就像一个枢纽连接各种路线以便于旅行一样，headend连接不同类型的信号和格式，使得用户能够无缝访问各种节目。该设施配备了先进的技术，允许信号调制、编码和加密，确保内容不仅高效地传递，而且安全。headend的主要功能之一是聚合来自多个来源的内容。例如，有线电视提供商可能会接收来自本地广播、卫星馈送甚至流媒体服务的信号。通过在headend聚集所有这些输入，提供商可以为订阅者创建一个全面的频道和点播选项包。这种聚合使得消费者能够从单一服务提供商那里享受多样化的节目。此外，headend在内容管理中也发挥着至关重要的作用。它负责管理传输信号的质量。这包括调整信号强度、减轻干扰，并确保视频和音频质量符合行业标准。如果没有良好运作的headend，观众可能会遇到诸如像素化或失去声音等干扰，这将影响他们的观看体验。此外，headend对交互服务的实施至关重要。许多现代电视系统允许观众与内容互动，无论是通过视频点播、按次付费选项还是互动广告。headend通过处理用户请求并实时传递适当的内容来管理这些服务。这种能力改变了观众与媒体的互动方式，使其更加个性化和用户友好。随着技术的发展，headend的功能也在不断演变。随着互联网协议电视（IPTV）和超越顶端（OTT）服务的兴起，传统的headend设施正在适应新的传递方式。这种转变导致了基于云的headend解决方案的发展，这些解决方案提供了更大的灵活性和可扩展性。提供商现在可以更有效地管理内容分发，使他们能够快速响应不断变化的观众需求和市场趋势。总之，headend是电信领域不可或缺的组成部分。它作为内容传递的支柱，确保观众接收到高质量的节目，同时促进交互功能。随着行业的不断创新，headend将继续处于技术进步的前沿，塑造我们消费媒体的未来。理解headend的重要性不仅丰富了我们对广播的认识，也突显了在传递我们常常视为理所当然的娱乐内容时所涉及的复杂性。