| 摘要 |
According to an embodiment of the present invention, provided is a method for receiving a low power acoustic wave by using a push message. The method comprises: a step of transmitting an activation message as a push message to a wireless terminal, if an acoustic wave having an inaudible band is included in an acoustic wave outputted by a television system, wherein the activation message configured to activate an acoustic wave receiving module (a necessary component for detecting an acoustic wave) included in the wireless terminal; and a step of sensing the acoustic wave having an inaudible band through the activated acoustic wave receiving module, wherein the acoustic wave included in the acoustic wave outputted by the television system. Accordingly, power consumption is saved in the wireless terminal. |
