Abstract: A sleep inducing device and a sleep management system including the same are provided. The sleep inducing device comprises: a housing unit that includes a frame of which the shape can be changed; a sensor unit that is disposed on one surface of the housing unit and includes a brain-wave measurement sensor that measures a user's brain wave; an output unit that includes a first output unit and a second output unit, wherein the first output unit is located on one side of the housing unit to output a sound or light with a first frequency, and the second output unit is located on an opposite side of the housing unit to output a sound or light with a second frequency that is different from the first frequency; and a control unit that calculates the user's sleep pattern on the basis of the brain wave signal measured by the sensor unit and changes the output signal of the output unit such that the sleep pattern approaches a predetermined value.

Abstract: A method and apparatus for determining whether a ear of a user is contiguous to an electronic device or whether a user watches a display of the electronic device are disclosed herein. The method for determining a proximity level between an electronic device and a user includes the steps of acquiring a measurement value from at least one sensor being differentiated from a proximity sensor, detecting a movement of the electronic device by using the measurement value, responding to the detection of the electronic device and determining whether or not the electronic device is placed near (or contiguous to) the user or whether or not the user is viewing a display of the electronic device by using the measurement value, and controlling the electronic device based upon the determined result. Accordingly, the proximity level between the electronic device and the user may be determined without having to use a proximity sensor.