Electronic device and power saving method thereof

Abstract

An electronic device includes a communication unit and processing circuitry. The communication unit is configured to receive information on whether a user wears other electronic device. The processing circuitry configured to, responsive to a predetermined event occurring, determine whether the other electronic device is worn by the user. The processing circuitry also configured to control the communication unit to transmit a notification message to the other electronic device based on whether the other electronic device is in a worn state or an unworn state.

What is claimed is: 
     
         1 . An electronic device comprising:
 a communication unit configured to communicate with an external electronic device; and   a processor configured to:
 connect to the external electronic device, 
 after connecting to the external electronic device, in response to a first predetermined event occurring, transmit a first notification message to the external electronic device, 
 receive, from the external electronic device, information that the external electronic device is in an unworn state, and 
 after receiving the information that the external electronic device is in the unworn state, in response to a second predetermined event occurring, withhold transmitting a second notification message to the external electronic device. 
   
     
     
         2 . The electronic device according to  claim 1 , wherein the processor is further configured to:
 receive, from the external electronic device, a control signal indicating a setting for limiting notification; and   withhold transmitting the first notification message to the external electronic device when the first predetermined event occurs during the setting for limiting notification.   
     
     
         3 . The electronic device according to  claim 1 , further comprising an input unit configured to receive a setting for limiting notification,
 wherein the processor is further configured to withhold transmitting the first notification message to the external electronic device when the first predetermined event occurs during the setting for limiting notification.   
     
     
         4 . The electronic device according to  claim 1 , wherein the processor is further configured to:
 transmit the second notification message associated with the second predetermined event occurring in the unworn state when receiving information that the external electronic device is in a worn state from the external electronic device.   
     
     
         5 . The electronic device according to  claim 1 , wherein the processor is further configured to:
 in response to receiving, from the external electronic device, a notification message representing a battery state of the external electronic device, notify the battery state of the external electronic device to a user; and   transmit a power saving mode enter signal to the external electronic device.   
     
     
         6 . The electronic device according to  claim 1 , wherein the processor is further configured to:
 transmit the first notification message to the external electronic device through a first communication method when receiving a voice call or a video call, and   communicate voice data with the external electronic device through a second communication method when receiving a voice or video call acceptance signal from the external electronic device.   
     
     
         7 . The electronic device according to  claim 6 , wherein the first communication method is Bluetooth low energy (BLE) and the second communication method is Bluetooth Classic. 
     
     
         8 . An electronic device comprising:
 a communication unit configured to communicate with external electronic device;   a sensor configured to sense whether a user is wearing the electronic device; and   a processor configured to:
 connect to the external electronic device, 
 after connecting to the external electronic device, receive a first notification message associated with a first event occurring with the external electronic device, 
 perform a first notification of the first event occurring with the external electronic device, 
 sense that the electronic device is in an unworn state using the sensor, 
 after sensing that the electronic device is in the unworn state, receive a second notification message associated with a second event occurring with the external electronic device, and 
 withhold performing a second notification of the second event occurring with the external electronic device. 
   
     
     
         9 . The electronic device according to  claim 8 , wherein when the electronic device changes from the unworn state into a worn state, the processor is further configured to perform the second notification of the second event associated with the second notification message received in the unworn state. 
     
     
         10 . The electronic device according to  claim 8 , further comprising an input unit configured to receive a setting for limiting notification,
 wherein when receiving the first notification message during the setting for limiting notification, the processor is further configured to withhold performing the first notification of the first event occurring with the external electronic device.   
     
     
         11 . The electronic device according to  claim 8 , wherein the processor is further configured to:
 receive a setting for limiting notification from the external electronic device; and   when receiving the first notification message during the setting for limiting notification, withhold performing the first notification of the first event occurring with the external electronic device.   
     
     
         12 . The electronic device according to  claim 8 , wherein the processor is further configured to transmit, to the external electronic device, a third notification message representing a battery state of the electronic device when a battery remaining capacity becomes a predetermined capacity and the electronic device is in the unworn state. 
     
     
         13 . The electronic device according to  claim 8 , wherein when receiving a notification message representing a battery state of the external electronic device while the electronic device is in a worn state, the processor is further configured to:
 perform a notification of the battery state of the external electronic device; and   transmit a power saving mode enter signal to the external electronic device.