The invention, which in 2009 Apple called a "Reduced Size Multi-Pin Male Plug Connector" describes a 30-pin dock connector for "high-speed communication standards," citing USB 3.0 and a "dual channel" DisplayPort.
The name "Thunderbolt" wasn't mentioned (unsurprisingly, given that it only launched in February 2011 on the new MacBook Pro) but the patent's multiple mentions of a "dual channel" DisplayPort suggests the same technology.
Thunderbolt combines Intel's PCI Express and DisplayPort into a single connector for theoretical transfer speeds of 10 Gbps (fast enough to download a full-length Blu-ray movie in under 30 seconds).
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