Method of interrupt control and electronic system using the same

Abstract

A method of interrupt control for an electronic system, the electronic system including a host and an electronic device, includes receiving digital data generated by the electronic device; determining a value of the digital data and dividing a possible range of the value of the digital data into a plurality of regions; and sending an interrupt signal to the host when the value of the digital data changes from a first region among the plurality of regions to a second region among the plurality of regions and remains within the second region for a specific period of time.

What is claimed is: 
     
         1 . A method of interrupt control for an electronic system, the electronic system comprising a host and an electronic device, the method comprising:
 receiving digital data generated by the electronic device;   determining a value of the digital data and dividing a possible range of the value of the digital data into a plurality of regions; and   sending an interrupt signal to the host when the value of the digital data changes from a first region among the plurality of regions to a second region among the plurality of regions and remains within the second region for a specific period of time.   
     
     
         2 . The method of  claim 1 , wherein the interrupt signal controls the host to interrupt an ongoing task in order to allow the host to receive an output data corresponding to the digital data. 
     
     
         3 . The method of  claim 1 , wherein the electronic device is a light sensor and the digital data correspond to a sensing result of ambient lights. 
     
     
         4 . The method of  claim 1 , further comprising not sending the interrupt signal to the host when the value of the digital data changes from the first region to the second region and returns to the first region within the specific period of time. 
     
     
         5 . The method of  claim 1 , further comprising not sending the interrupt signal to the host when the value of the digital data is within the first region and does not change to another region. 
     
     
         6 . An electronic system, comprising:
 a host;   an electronic device, for generating digital data; and   a control unit, having a program executed by a processor for performing a method of interrupt control, the method comprising:
 receiving the digital data generated by the electronic device; 
 determining a value of the digital data and dividing a possible range of the value of the digital data into a plurality of regions; and 
 sending an interrupt signal to the host when the value of the digital data changes from a first region among the plurality of regions to a second region among the plurality of regions and remains within the second region for a specific period of time. 
   
     
     
         7 . The electronic system of  claim 6 , wherein the interrupt signal controls the host to interrupt an ongoing task in order to allow the host to receive an output data corresponding to the digital data. 
     
     
         8 . The electronic system of  claim 6 , wherein the electronic device is a light sensor and the digital data correspond to a sensing result of ambient lights. 
     
     
         9 . The electronic system of  claim 6 , wherein the control unit does not send the interrupt signal to the host when the value of the digital data changes from the first region to the second region and returns to the first region within the specific period of time. 
     
     
         10 . The electronic system of  claim 6 , wherein the control unit does not send the interrupt signal to the host when the value of the digital data is within the first region and does not change to another region. 
     
     
         11 . A method of interrupt control for an electronic system, the electronic system comprising a host and an electronic device, the method comprising:
 receiving digital data generated by the electronic device;   determining a value of the digital data and dividing a possible range of the value of the digital data into a plurality of regions;   classifying the plurality of regions into a first group and a second group;   sending an interrupt signal to the host when the value of the digital data is located in a first region among the plurality of regions in the first group and remains within the first region for each specific period of time; and   not sending the interrupt signal to the host when the value of the digital data is located in a second region among the plurality of regions in the second group.   
     
     
         12 . The method of  claim 11 , wherein the interrupt signal controls the host to interrupt an ongoing task in order to allow the host to receive an output data corresponding to the digital data. 
     
     
         13 . The method of  claim 11 , wherein the electronic device is a light sensor and the digital data correspond to a sensing result of ambient lights. 
     
     
         14 . The method of  claim 11 , further comprising not sending the interrupt signal to the host when the value of the digital data changes from the second region to the first region and returns to the second region within the specific period of time. 
     
     
         15 . The method of  claim 11 , further comprising sending the interrupt signal to the host when the value of the digital data changes from the second region to the first region and remains within the first region for the specific period of time. 
     
     
         16 . An electronic system, comprising:
 a host;   an electronic device, for generating digital data; and   a control unit, having a program executed by a processor for performing a method of interrupt control, the method comprising:
 receiving the digital data generated by the electronic device; 
 determining a value of the digital data and dividing a possible range of the value of the digital data into a plurality of regions; 
 classifying the plurality of regions into a first group and a second group; 
 sending an interrupt signal to the host when the value of the digital data is located in a first region among the plurality of regions in the first group and remains within the first region for each specific period of time; and 
 not sending the interrupt signal to the host when the value of the digital data is located in a second region among the plurality of regions in the second group. 
   
     
     
         17 . The electronic system of  claim 16 , wherein the interrupt signal controls the host to interrupt an ongoing task in order to allow the host to receive an output data corresponding to the digital data. 
     
     
         18 . The electronic system of  claim 16 , wherein the electronic device is a light sensor and the digital data correspond to a sensing result of ambient lights. 
     
     
         19 . The electronic system of  claim 16 , wherein the control unit does not send the interrupt signal to the host when the value of the digital data changes from the second region to the first region and returns to the second region within the specific period of time. 
     
     
         20 . The electronic system of  claim 16 , wherein the control unit sends the interrupt signal to the host when the value of the digital data changes from the second region to the first region and remains within the first region for the specific period of time.