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USB 80Gbps接口标准正式发布 USB 3.0/USB4称呼被淘汰_我的网站

A |     到了USB4，不但再次改变命名方式，技术上也变懒了，几乎直接承袭了Intel捐献的雷电3标准，从物理底层到技术规格都如出一辙。    

    Photo of group livestream. Photo: VCG
China's cyberspace regulator has shut down more than 7,200 illegal group livestreaming rooms and penalized over 2,200 accounts as part of an intensified crackdown on misconduct in online group livestreaming entertainment. The campaign targets vulgar content, mechanisms designed to encourage excessive tipping, and infringements on minors' rights.
The Cyberspace Administration of China (CAC) has also instructed online platforms to remove or take action against a number of MCN agencies involved in serious misconduct, issued 17 notices on the campaign, and publicized typical cases to deter further violations, said regulator on its WeChat account. 
During a campaign, the CAC has sought to combine enforcement with tighter regulation by improving content review, adjusting ranking systems and interactive features, and strengthening oversight of group livestreaming accounts and MCN agencies. Online platforms have also been urged to assume greater responsibility for managing such content.
Douyin, the Chinese version of TikTok, has begun displaying information about affiliated MCN agencies on group livestreaming accounts and has organized training for agencies to curb misconduct at the source. 
Kuaishou, one of China's popular short-video platforms, has refined its review standards and strengthened technical tools to better identify vulgar content and inappropriate interactions.
WeChat Channels have introduced an identity-verification mechanism for suspected underage participants in group livestreams with the aim to preventing minors from appearing in such broadcasts in disguised or less obvious ways. Bilibili, a Chinese video platform, meanwhile, has removed features such as multiplier points, tiered bonuses and ranking competitions that could encourage viewers to spend money on virtual gifts. 
Xiaohongshu, or RedNote, Chinese equivalent of Instagram, has imposed measures including traffic restrictions to curb practices such as repetitive shouting and livestreaming competitions that lack substantive content.
The CAC said that the campaign has led to a significant decline in vulgar content in entertainment group livestreaming, while violations involving the inducement of excessive tipping have been effectively curbed.
The regulator said it will maintain strict oversight, intensify action against accounts and agencies that violate regulations, and push online platforms to improve management mechanisms and technological capabilities. It will also continue to optimize livestreaming features to foster a healthier and more orderly online entertainment environment.
Global Times
。新鲜出炉的USB4 v2.0，也不是接口名字，而只是规范命名。从此以后(到下次再改名)，USB接口将统一以传输带宽命名，USB4 v2.0对应USB 80Gbps，USB4对应USB 40Gbps，USB 3.2 Gen2x2对应20Gbps，USB 3.2 Gen2对应USB 10Gbps，USB 3.2 Gen1对应USB 5Gbps……更古老的USB 2.0、USB 1.0保持不变，因为它们的速度太慢了，还停留在Mbps数量级。如果改叫USB 480Mbps，不但麻烦还容易引起误会(你也知道容易误会啊)。

B | 所以请注意新接口下的包装标识、接口标识、数据线标识：回到UBS4 2.0或者说USB 80Gbps，它的首要变化自然是带宽再次翻番来到了80Gbps，这得益于新的基于PAM3信号编码机制的物理层架构，同时还有新定义的80Gbps有源数据线。

C | 在特定应用场景中，比如8K超高清显示，USB 80Gbps还可以配置为非对称编码异步传输模式，一个方向可以高达120Gbps，从而足够承载DP 2.0/2.1 UHBR20信号，另一个方向则是40Gbps。

D | 其次，USB 80Gbps升级了数据和显示协议，可以更好地利用带宽，其中数据传输支持20Gbps的高带宽，显示传输则和DP 2.0、PCIe 4.0相互打通，共享PHY物理层，从而一个接口搞定高速数据、显示。当然了，USB 80Gbps依然保持向下兼容，而且只有USB Type-C一种接口形式。顺带一提，USB Type-C接口规范、USB PD供电规范也已升级，与USB 80Gbps保持同步。

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Published on:21:07:34