WAKE UP ALARM PROVIDING DEVICE Russian patent published in 2016 - IPC G04G13/02 

FIELD: sound.

SUBSTANCE: invention relates to acoustics, particularly, to the alarm clocks. Device comprises a sound producing unit, for providing an audible wake up signal during an alert period, and a control unit. Control of awakening signal is performed so that it contains localised and diffused sounds. Thus the sum of the peak sound intensities of the diffuse sound exceeds the maximum sound intensity of the localized sound during the first part of the alert period, and that a ratio of the sum of the peak sound intensities of the diffuse sound to the maximum sound intensity of the localized sound is decreased during the subsequent part of the alert period The device also comprises a digital reverberation unit, two loudspeakers located at different angles, clock. Wherein the control unit generates a signal so, to the first part of the period of signalling and the next part of the signalling occur only once during the period of signalling.

EFFECT: technical result is increased efficiency of user awakening.

11 cl, 6 dwg