Data processing apparatus and data processing method

Abstract

When a packet received in a deep sleep mode matches a packet stored in a WOL-pattern storage region, a network portion performs reply processing suited for the matched packet after returning a power supply mode of a power supply unit from the deep sleep mode to a normal mode. When the packet received in the deep sleep mode matches a packet stored in a proxy-response-pattern storage region, the network portion performs reply processing suited for the matched packet while maintaining the power supply mode of the power supply unit at the deep sleep mode.

1 . (canceled) 
     
     
         2 . A data processing apparatus having a controller and a network portion, the data processing apparatus being operable in a first power mode for supplying power to both of the controller and the network portion or in a second power mode for supplying power to the network portion while supplying, to the controller, power less than the power supplied in the first power mode, the network portion comprising:
 a storage unit configured to store a first packet pattern and a second packet pattern;   a determining unit configured to determine whether a received packet matches the first packet pattern stored in the storage unit or the second packet pattern stored in the storage unit, in a case where the data processing apparatus operates in the second power mode;   a reply processing unit configured to perform reply processing on the received packet without shifting the data processing apparatus from the second power mode to the first power mode, in a case where the determining unit determines that the received packet matches the first packet pattern; and   a shift processing unit configured to perform shift processing which is for shifting the data processing apparatus from the second power mode to the first power mode, in a case where the determining unit determines that the received packet matches the second packet pattern,   wherein in a case where a number of receptions of a specific packet that has been stored in the storage unit as the second packet pattern satisfies a predetermined condition, the storage unit stores the specific packet not as the second packet pattern but as the first packet pattern.   
     
     
         3 . The data processing apparatus according to  claim 1 , wherein the storage unit stores the specific packet not as the second packet pattern but as the first packet pattern, in a case where a number of receptions of the specific packet in a certain period satisfies the predetermined condition. 
     
     
         4 . The data processing apparatus according to  claim 1 , wherein the storage unit stores the specific packet not as the second packet pattern but as the first packet pattern, in a case where a number of receptions of the specific packet exceeds a predetermined number of times. 
     
     
         5 . The data processing apparatus according to  claim 3 , wherein the predetermined number of times differs depending on a type of the specific packet. 
     
     
         6 . The data processing apparatus according to  claim 3 , wherein the predetermined number of times can be changed based on a user's input. 
     
     
         7 . The data processing apparatus according to  claim 1 , wherein in a case where there is no available space for storing the specific packet as the first packet pattern, the storage unit deletes a packet which is least frequently received among packets having been stored in the storage unit as the first packet pattern, and stores the specific packet as the first packet pattern. 
     
     
         8 . The data processing apparatus according to  claim 1 , wherein in a case where the data processing apparatus operates in the second power mode, power supply to the controller is interrupted. 
     
     
         9 . A method for controlling a data processing apparatus having a controller and a network portion, the data processing apparatus being operable in a first power mode for supplying power to both of the controller and the network portion or in a second power mode for supplying power to the network portion while supplying, to the controller, power less than the power supplied in the first power mode, comprising:
 storing a first packet pattern and a second packet pattern;   determining whether a received packet matches the first packet pattern stored or the second packet pattern stored, in a case where the data processing apparatus operates in the second power mode;   performing reply processing on the received packet without shifting the data processing apparatus from the second power mode to the first power mode, in a case where it is determined that the received packet matches the first packet pattern; and   performing shift processing which is for shifting the data processing apparatus from the second power mode to the first power mode, in a case where it is determined that the received packet matches the second packet pattern,   wherein in a case where a number of receptions of a specific packet that has been stored as the second packet pattern satisfies a predetermined condition, the specific packet is stored not as the second packet pattern but as the first packet pattern.   
     
     
         10 . A computer-readable storage medium for storing a computer-executable process, the computer-executable process causing a computer to execute a method for controlling a data processing apparatus having a controller and a network portion, the data processing apparatus being operable in a first power mode for supplying power to both of the controller and the network portion or in a second power mode for supplying power to the network portion while supplying, to the controller, power less than the power supplied in the first power mode, comprising:
 storing a first packet pattern and a second packet pattern;   determining whether a received packet matches the first packet pattern stored or the second packet pattern stored, in a case where the data processing apparatus operates in the second power mode;   performing reply processing on the received packet without shifting the data processing apparatus from the second power mode to the first power mode, in a case where it is determined that the received packet matches the first packet pattern; and   performing shift processing which is for shifting the data processing apparatus from the second power mode to the first power mode, in a case where it is determined that the received packet matches the second packet pattern,   wherein in a case where a number of receptions of a specific packet that has been stored as the second packet pattern satisfies a predetermined condition, the specific packet is stored not as the second packet pattern but as the first packet pattern.