Patent ID: 7555003
Filing Date: 2009-06-30
Classification: G06F

Abstract:
1. A data transfer control unit for data transmission/reception between a first apparatus and a second apparatus, comprising: a first status storage portion which stores first communication status information indicating a communication status of the first apparatus and transmission data length information indicating a data length of transmission data to be transmitted from the first apparatus to the second apparatus; a second status storage portion which stores second communication status information indicating a communication status of the second apparatus; a data storage portion which stores transmission data corresponding to the stored transmission data length information; a propriety judgment portion configured to judge whether the first communication status information is proper, based on at least one of the transmission data length information and the second communication status information; a correction portion configured to correct the first communication status information when the first communication status information is not proper as a result of the judgment; and a packet transmission portion which generates and transmits a first packet containing the corrected first communication status information and the stored transmission data length information.