<p>➀ Huawei has recently applied for a brain-computer interface chip patent, indicating a significant technological breakthrough in the field.</p><p>➁ The patent, titled 'Method for controlling stimulator, stimulator, brain-computer interface system and chip,' involves controlling the electrode voltage of the stimulator to determine whether to apply an electrical pulse.</p><p>➂ The new design is said to enhance the control accuracy of the stimulator while improving the safety of the stimulator system.</p>