MR Sequence Kernel Partitioning for FPGA Complexity Reduction

The patent segments the continuous sequence instructions into discrete time chunks (e.g., 10ms intervals), allowing the system to process sequence events in manageable portions rather than continuously. This segmentation enables CPU-based processing to achieve the same real-time control functionality that previously required powerful FPGAs, reducing device complexity while maintaining timing precision through structured time boundaries.

The patent transitions from static, fixed-time chunk boundaries to dynamic boundaries that are strategically positioned at physiologically meaningful points such as RF pulse transitions, gradient switching events, and echo train markers. This dynamic boundary placement ensures that sequence chunks align with the underlying spin physics timing, maintaining accuracy while preserving processing simplicity through automated boundary detection algorithms.

The patent introduces a CPU-based sequence controller as an intermediary layer between the high-level sequence description and the low-level hardware execution. This intermediary processes sequence instructions, applies physics-based corrections, and generates timing commands with microsecond precision. The CPU-based approach provides flexibility for adapting to unique clinical applications through software programming, while maintaining timing guarantees through systematic time management and synchronization mechanisms.