Core Viewpoint - The article emphasizes the emergence of the General-Purpose Multimedia Interface (GPMI) as a revolutionary technology in the ultra-high-definition audio and video industry, addressing the limitations of existing interface technologies and providing a comprehensive solution for future industry needs [1][3]. Group 1: Development Overview - GPMI has been developed to overcome the challenges faced by existing interface technologies, which lack extensibility and compatibility for future diverse applications [3][5]. - The GPMI ecosystem includes a wide range of partners across the industry chain, from terminal manufacturers to cable and connector manufacturers, content protection companies, chip developers, and standard-setting organizations, creating a complete and organic industrial ecosystem [2][21]. Group 2: Advantages Analysis - GPMI technology boasts seven significant advantages: bidirectional multi-stream, bidirectional control, high power supply, ecological compatibility, ultra-fast transmission, quick wake-up, and full-chain security, which collectively enhance user experience and support future industry development [25][26]. - The technology supports mixed bidirectional transmission of video and data streams, allowing for greater flexibility in device connectivity and interaction [29]. - GPMI's Type-B interface can provide up to 480W of power, significantly improving device connectivity and user experience [36]. Group 3: Application Scenarios - GPMI technology is being applied in various fields, including smart TVs, interconnectivity between large and small screens, and video wall applications, enhancing audio and video transmission quality and efficiency [46][57]. - The first commercial application of GPMI technology was realized by Haier, which launched a smart TV that integrates GPMI, allowing seamless connectivity with mobile devices [57]. Group 4: Future Outlook - The GPMI technology is expected to evolve through three stages: enhancing personal and family applications, advancing automotive electronics, and supporting industrial applications, thereby creating a smart interconnected ecosystem [65][67]. - The GPMI ecosystem is anticipated to drive innovation and standardization across the audio and video industry, with over 50 core industry partners collaborating to optimize products and enhance consumer experiences [62].

超高清音视频接口技术丨白皮书 序言： 随着超高清音视频产业的蓬勃发展，4K分辨率已在全球及国内市场成为标准配置。当前现有接口技术存在功 能单一和业务拓展困难的局限性，难以适应产业未来发展需求。面对这些挑战，市场迫切需要一种新的接口 技术，以满足超高清音视频产业创新需求。正是在这样的背景下，经过多年的技术革新和产业合作，GPMI （General-Purpose Multimedia Interface，通用多媒体接口）应运而生。 GPMI技术作为音视频产业的根技术创新，具有七大显著技术优势，分别体现在：双向多流、双向控制、高 功供电、生态兼容、极速传输、快速唤醒和全链安全。特别值得一提的是，GPMI技术与现代USB接口实现 了兼容，使得厂商能够直接利用现有的接口标准，显著降低生产制造和研发成本。GPMI的核心技术价值为 音视频行业产品创新形态和应用场景提供了技术承载。GPMI技术已在智能电视、智能机顶盒、大小屏生态 互联等领域应用落地，未来将在智慧家庭、汽车电子、消费电子等领域扮演着至关重要的角色。 当前，GPMI已经构建了覆盖产业链上下游的关键合作伙伴"朋友圈"，这些伙伴遍布于产业链的各个关键环 节，从终端 ...