The EPO published patent application EP4492375A1 for an AI-powered knocking-based device control system developed by Haier. The patent covers methods and apparatus for detecting knock patterns via audio sensors, classifying them using neural network algorithms, and executing corresponding device commands for smart home applications including washing machines. The application lists IPC classifications in AI/machine learning (G06N), audio processing (G10L), and human-computer interaction (G06F), with designated states covering most EU member states plus other EPC contracting states.

This is a patent publication notice with no immediate compliance obligations for other entities. Companies developing similar gesture or knock-based control interfaces should review this patent to assess potential freedom-to-operate implications or consider whether their existing IP portfolios may conflict. No regulatory deadlines, filing requirements, or penalties are associated with this notice.