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California-based Navy sailor pleads guilty to providing sensitive military information to China_我的网站

A |     LOS ANGELES -- A U.S. Navy sailor charged with providing sensitive military information to China pleaded guilty in Los Angeles on Tuesday to conspiring with a foreign intelligence officer and receiving a bribe, federal prosecutors said. Petty Officer Wenheng Zhao, 26, originally pleaded not guilty when he was charged Aug. 4. The Justice Department alleges that Zhao, based at Naval Base Ventura County, north of Los Angeles, conspired to collect nearly $15,000 in bribes from a Chinese intelligence officer in exchange for information, photos and videos of involving Navy exercises, operations and facilities.The information included plans for a large-scale U.S. military exercise in the Indo-Pacific region, which detailed the location and timing of naval force movements, prosecutors said. The Chinese officer told Zhao the information was needed for maritime economic research to inform investment decisions, according to the indictment.Zhao, who also went by the name Thomas Zhao and held a U.S. security clearance, “admitted he engaged in a corrupt scheme to collect and transmit sensitive U.S. military information to the intelligence officer in violation of his official duties,” the U.S. Attorney's Office said in a news release Tuesday. Zhao, of Monterey Park, California, faces a statutory maximum penalty of 20 years in federal prison. He has been in custody since his arrest on Aug. 3.Zhao was charged on the same day as another California-based Navy sailor who is accused of similar crimes. But they are separate cases, and federal officials haven't said if the two were courted or paid by the same Chinese intelligence officer as part of a larger scheme. Jinchao Wei, a 22-year-old assigned to the San Diego-based USS Essex, is charged with providing detailed information on the weapons systems and aircraft aboard the Essex and other amphibious assault ships that act as small aircraft carriers. He pleaded not guilty in federal court in San Diego. Last week, a former U.S. Army intelligence officer was charged in Seattle with attempting to provide classified defense information to the Chinese security services during the outbreak of the COVID-19 pandemic. Sgt. Joseph Daniel Schmidt, 29, was arrested Oct. 6 at San Francisco International Airport as he arrived from Hong Kong, where he had been living since March 2020, the Justice Department said. A federal grand jury returned an indictment charging him with retention and attempted delivery of national defense information. U.S. District Court records in Seattle did not yet list an attorney representing Schmidt on the charges, and neither the U.S. attorney’s office nor the federal public defender’s office had information about whether he had a lawyer.An FBI declaration filed in the case quoted Schmidt as telling his sister in an email that he left the U.S. because he disagreed with unspecified aspects of American policy.。    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。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。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。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。

C | 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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