Light sensing module and system

Abstract

A light sensing module used in a light sensing system incorporated with a processor includes at least one first light source, for emitting light; at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and at least one interrupt driver, for sending an interrupt signal to the processor, in order to notify the processor to receive the computational result; wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.

What is claimed is: 
     
         1 . A light sensing module used in a light sensing system incorporated with a processor, the light sensing module comprising:
 at least one first light source, for emitting light;   at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result;   a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and   at least one interrupt driver, for sending an interrupt signal to the processor in order to notify the processor to receive the computational result;   
       wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result. 
     
     
         2 . The light sensing module of  claim 1 , wherein the control unit further disposes a type and a number of the first light source according to configurations of the processor. 
     
     
         3 . The light sensing module of  claim 1 , wherein the first light sensor comprises a proximity sensor, an ambient light sensor, a color sensor and/or an image sensor. 
     
     
         4 . The light sensing module of  claim 1 , wherein the first light source comprises a light emitting diode (LED) and/or an infrared LED. 
     
     
         5 . The light sensing module of  claim 1 , further comprising:
 a light sensor interface, electrically connected between the control unit and the first light sensor; and   an I/O interface, electrically connected between the control unit and the first light source and the interrupt driver.   
     
     
         6 . The light sensing module of  claim 5 , further comprising:
 a synchronization device, electrically connected to the I/O interface, for connecting to another light sensing module in order to synchronize the light sensing module with the other light sensing module.   
     
     
         7 . The light sensing module of  claim 5 , further comprising:
 at least one light sensor port, electrically connected to the light sensor interface, for being externally connecting to at least one second light sensor.   
     
     
         8 . The light sensing module of  claim 7 , wherein the processor disposes a type and a number of the second light sensor, and configures the control unit accordingly. 
     
     
         9 . The light sensing module of  claim 5 , further comprising:
 at least one light source port, electrically connected to the I/O interface, for externally connecting to at least one second light source.   
     
     
         10 . The light sensing module of  claim 9 , wherein the control unit further disposes a type and a number of the second light source according to configurations of the processor. 
     
     
         11 . The light sensing module of  claim 1 , wherein the light sensing module is realized by a system on a chip (SoC) or an integrated circuit package. 
     
     
         12 . A light sensing system, comprising:
 a processor; and   at least one light sensing module, each light sensing module comprising:
 at least one first light source, for emitting light; 
 at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; 
 a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and 
 at least one interrupt driver, for sending an interrupt signal to the processor in order to notify the processor to receive the computational result; 
   
       wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result. 
     
     
         13 . The light sensing system of  claim 12 , wherein the control unit further disposes a type and a number of the first light source according to configurations of the processor. 
     
     
         14 . The light sensing system of  claim 12 , wherein the first light sensor comprises a proximity sensor, an ambient light sensor, a color sensor and/or an image sensor. 
     
     
         15 . The light sensing system of  claim 12 , wherein the first light source comprises a light emitting diode (LED) and/or an infrared LED. 
     
     
         16 . The light sensing system of  claim 12 , wherein the light sensing module further comprises:
 a light sensor interface, electrically connected between the control unit and the first light sensor; and   an I/O interface, electrically connected between the control unit and the first light source and the interrupt driver.   
     
     
         17 . The light sensing system of  claim 16 , wherein the light sensing module further comprises:
 a synchronization device, electrically connected to the I/O interface, for connecting to another light sensing module among the light sensing module, in order to synchronize the light sensing module with the other light sensing module.   
     
     
         18 . The light sensing system of  claim 16 , wherein the light sensing module further comprises:
 at least one light sensor port, electrically connected to the light sensor interface, for externally connecting to at least one second light sensor.   
     
     
         19 . The light sensing system of  claim 18 , wherein the processor disposes a type and a number of the second light sensor, and configures the control unit accordingly. 
     
     
         20 . The light sensing system of  claim 16 , wherein the light sensing module further comprises:
 at least one light source port, electrically connected to the I/O interface, for externally connecting to at least one second light source.   
     
     
         21 . The light sensing system of  claim 20 , wherein the control unit further disposes a type and a number of the second light source according to configurations of the processor. 
     
     
         22 . The light sensing system of  claim 12 , wherein the light sensing module is realized by a system on a chip (SoC) or an integrated circuit package.