APPARATUS FOR ACOUSTIC PRESENTATION OF SPATIAL USER INFORMATION Russian patent published in 2014 - IPC G01S17/00 

FIELD: physics.

SUBSTANCE: apparatus for acoustic presentation of spatial information comprises a signal generator, a radiation channel amplifier and a transmitter, right- and left-side ultrasonic transducers, first and second analogue-to-digital converters (ADC), first and second memory units, first and second digital-to-analogue converters (DAC), first and second amplifiers, right- and left-side headphones. The apparatus also includes a clock-pulse generator, first and second frequency dividers and a delay unit, first and second switches, a counter, first and second sets of scaling-temporal filters, as well as first and second adders. Outputs of the first and second memory units are connected to data inputs of the first and second sets of scaling-temporal filters, respectively, and outputs of the first and second adders are connected to the first inputs of the first and second DAC, respectively. The apparatus includes series-connected user acoustic analyser analysis unit (UAAAU), third memory unit and multiplexer, the outputs of which are connected to control inputs of the first and second sets of scaling-temporal filters; the second output of the UAAAU is connected to the second input of the multiplexer, and the input of the UAAAU is connected to the output of the clock-pulse generator.

EFFECT: improved object recognition.

5 dwg