Patent ID: 6966065
Filing Date: 2005-11-15
Classification: H04L,H04N

Abstract:
1. A data transmission control method, comprising: repetitively transferring a cyclic data unit for a desired period of time, the cyclic data unit including desired data that is also transferred, processing the cyclic data unit by enabling a client that receives the cyclic data unit from a server to determine that the cyclic data unit contents were switched, and switching control information included in the cyclic data unit, and wherein processing the cyclic data is realized by setting a control information change event which denotes that the control information has been received under a standard of a predetermined interface, and thereafter, executing at least— a first process for allowing the client to transmit a subscribe event to indicate reception of the control information change event to the server, a second process for allowing the client to transmit an event notice requesting notification of generation of an event to the server, and a third process for notifying the client that the control information change event has been generated when the changed control information is received by the server in response to the event notice request.