Patent ID: 7032024
Filing Date: 2006-04-18
Classification: H04L

Abstract:
1. A method of managing a connection between plurality of devices in a network system, wherein a first device for transmitting data using a predetermined data transmission format and a second device for receiving the data are connected by a predetermined digital interface through a connection established by a control device, the method comprising: (a) transmitting a connection management command from a control device to at least one of the first device and the second device, wherein the connection management command comprises connection register information which specifies an output plug control register within the first device for transmitting the data or an input plug control register within the second device for receiving the data, identification information which specifies an input or output plug at which a connection is established, and an operand which specifies at least one connection status parameter bit field of the output plug control register of the first device or the input plug control register of the second device and indicates that the control device desires to be notified of a future change of the connection status parameter bit field; and (b) transmitting from the at least one of the first and second devices a response to the connection management command informing the control device of a change in the connection status parameter bit field which occurs in the at least one of the first and second devices, wherein the control device is one of the first device, the second device and a third device.