Patent ID: 6832267
Filing Date: 2004-12-14
Classification: H04L

Abstract:
A transmission method for transmitting data between a plurality of electronic apparatuses connected to a network in accordance with the IEEE1394 standard, wherein a data source apparatus transmits data through an output plug of the data source apparatus, across the network, and into an input plug of a data destination apparatus, comprising:a plug connection step of connecting the output plug of the data source apparatus to the input plug of the data destination apparatus, wherein said plug connection step includes: a buffer type confirmation step of confirming a type of a segment buffer in said data destination apparatus; a type specification step of specifying a type corresponding to the data source apparatus from confirmed types for said data destination apparatus; and a pointer setting step of setting a segment buffer descriptor corresponding to an address of the segment buffer of the specified type in a predetermined pointer within a register in said input plug; address confirmation step of, prior to start of transmission of said data, confirming the address of the segment buffer in said data destination apparatus for temporarily storing data obtained in the input plug by referring to the segment buffer descriptor set in the predetermined pointer; and data transmission step of transmitting data from said data source apparatus to the confirmed address of said segment buffer in said data destination apparatus through said network.