AUTOMATIC AUDIOMETER Russian patent published in 2025 - IPC A61B5/12 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and can be used for subjective assessment of degree of individual's hearing loss. Automatic audiometer comprises series-connected periodic function 2 address sensor, periodic function calculation unit 13, first switch 14, first multiplier 9, first adder 10, phase calculation unit 15, amplitude calculation unit 18, second multiplier 22, digital-to-analogue converter 24, low-pass filter 26, controlled attenuator 31, controlled switch 38, as well as series-connected sensor of length of pseudorandom sequence 3 and unit for generating pseudorandom sequence 8, in-series connected signal duration code sensor 1 and divider with variable division factor 12, frequency band code sensor 4, initial frequency code sensor 5, in-series connected amplitude-modulating function address sensor 20 and amplitude-modulating function calculation unit 21, series-connected intensity code sensor 40, accumulating adder of intensity increments 36, second adder 34, comparison circuit 33, second switch 32, tested ear code sensor 37, series-connected sending duration code sensor 29, third switch 25, duration counter 23, control unit 19, pause duration code sensor 30, series-connected patient button 39 and intensity increments generating unit 35, in-series connected intensities current values storage unit 16, intensity comparison majority circuit 11, intensities threshold values storage unit 7, as well as frequency number counter 6, clock pulse generator 17.

EFFECT: providing an automatic mode of operation of the audiometer when determining the audibility threshold of a person.

1 cl, 2 dwg