Patent ID: 7657610
Filing Date: 2010-02-02
Classification: H04L

Abstract:
1. An authentication output system comprising: a network device that performs an output based on output data, the output data including image data; and a device utilization apparatus that utilizes the network device, the network device and the device utilization apparatus being communicably connected to each other, and the network device performing the output through authentication, wherein the device utilization apparatus has: an output data division unit that divides the output data; a first divided output data transmission unit that transmits to the network device any of divided output data divided by the output data division unit; a collated information transmission unit that transmits, to the network device, collated information that includes at least one of identification information for identifying a user, identification information for identifying the device utilization apparatus, and identification information for identifying the output data; and a second divided output data transmission unit that transmits to the network device all the remaining divided output data out of divided output data divided by the output data division unit, in response to an acquisition request from the network device; a division procedure determination unit that, having a plurality of division procedures for dividing the output data, determines any one of the plurality of division procedures, and a division procedure information transmission unit that transmits, to the network device, division procedure information indicative of a division procedure determined by the division procedure determination unit; and wherein the network device has: a divided output data reception unit that receives divided output data transmitted by the first divided output data transmission unit; a collated information reception unit that receives collated information transmitted by the collated information transmission unit; a divided output data save unit that saves divided output data received by the divided output data reception unit and collated information received by the collated information reception unit, into a divided output data storage unit, in their corresponding relationship; a collation information acquisition unit that acquires collation information including the identification information; a divided output data acquisition unit that, when determining eligibility to use the output data based on collation information acquired by the collation information acquisition unit and on collated information in the divided output data storage unit, acquires all remaining divided output data out of the divided output data, from the device utilization apparatus; an output data configuration unit that configures the output data based on divided output data acquired by the divided output data acquisition unit and on corresponding divided output data in the divided output data storage unit; and an output unit that performs the output based on output data configured by the output data configuration unit; a division procedure information reception unit that receives the division procedure information from the division procedure information transmission unit; and wherein the divided output data save unit is configured to save the divided output data, the collated information, and division procedure information received by the division procedure information reception unit, into the divided output data storage unit, in their corresponding relationship; the output data division unit is configured to divide the image data of the output data into first divided data and second divided data in accordance with a division procedure determined by the division procedure determination unit from the plurality of division procedures for dividing the output data, such that the first divided data includes specified bits extracted in units of a predetermined data length beginning with a top of the image data and such that the second divided data includes data of bits other than the specified bits, the plurality of division procedures including a first division procedure whereby 5 bits of image data are extracted as the first divided data for every 1,000 bits beginning with the top of the image data, a second division procedure whereby 7 bits of image data are extracted as the first divided output data for every 1,250 bits beginning with the top of the image data, and a third division procedure whereby 15 bits of image data are extracted as the first divided data for every 2,500 bits beginning with the top of the image data; and the output data configuration unit is configured to configure the output data based on divided output data acquired by the divided output data acquisition unit, on corresponding divided output data in the divided output data storage unit, and on division procedure information.