Sound-modulating device
AssigneeYi Sheng Co., Ltd.
InventorJen-Fang Yu
Life of this patent
Estimating the term…
Abstract
A sound-modulating device used in a confined space is provided. The sound-modulating device includes an event detector and an audio module in communication with each other. The event detector detects an event and generates a trigger signal in response to the detected event. The audio module plays a music segment in response to the trigger signal. The frequencies of the music segment range from 20 Hz to 20000 Hz. The intensities of the music segment are smaller than or equal to 75 dB.
Claims15
A sound-modulating device used in a confined space, a door at an entrance of the confined space being controlled by a control circuit to be opened or closed, the sound-modulating device comprising:
- an event detector for detecting an event representing that at least one client is present in the confined space and the door closing duration exceeds a predetermined time period due to control failure or power failure and generating a trigger signal in response to the detected event;
- and
- an audio module in communication with the event detector, for playing a music segment in response to the trigger signal, frequencies of the music segment ranging from 20 Hz to 20000 Hz and intensities of the music segment being smaller than or equal to 75 dB.
Dependencies are inferred from the claim text.