Speech therapy vocal cord periodic movement recording system for endoscope use synchronizes stroboscopic flashes to camera and adjust exposure with shutter

摘要

A speech therapy vocal cord periodic movement recording system has video camera (7) exposure control (8) using validation signals and counting to enable flashing (E) by the stroboscope (3) until the required illumination for the selected gain is reached and uses a shutter for partial exclusion of individual flashes.