Adaptive Interface Circuit for USB to PCIe Data Transfer

The patent applies preliminary action by having the NVMe controller retrieve and execute instructions from the submission queue before the host finishes transmitting data. The controller proactively polls the submission queue and processes available instructions ahead of time, rather than waiting passively for host completion signals. This allows the controller to be ready to process data immediately upon arrival, significantly reducing the response time delay while maintaining data transmission accuracy through proper queue management and completion tracking.

The patent implements continuity of useful action by establishing a continuous polling mechanism where the NVMe controller continuously monitors the submission queue for new instructions. Instead of idle waiting periods between doorbell signals, the controller maintains active engagement with the queue, retrieving and executing instructions as soon as they become available. This continuous operation eliminates idle transmission time and maximizes bandwidth utilization, while the completion queue mechanism ensures system stability through proper state tracking.

The patent applies segmentation by dividing the data transmission into discrete instruction units organized in the submission queue. Each instruction represents a manageable chunk of work that the controller can process independently. This segmentation allows the controller to process multiple small instructions in rapid succession through continuous polling, rather than waiting for large data blocks. The completion queue similarly segments tracking of processed data, enabling efficient throughput measurement and management without extending total transmission duration.