Patent ID: 6993784
Filing Date: 2006-01-31
Classification: H04N

Abstract:
1. An information signal device connected to a network, comprising: at least one object for generating messages concerning events occurring in the information signal device, wherein said messages have specified and unspecified destinations; an event manager for directing the messages generated by the at least one object to destinations inside and outside the information signal device; a network messenger for transmitting generated messages to a specified destination on the network directed by the event manager; a broadcast manager for broadcasting generated messages having unspecified destinations to the network as directed by the event manager, wherein the broadcast manager broadcasts each message with reference information attached thereto, the reference information changing at each message broadcast according to a predetermined sequence, wherein the broadcast manager broadcasts, in a predetermined repetition period, verification information having a predetermined relationship with the reference information, and wherein the broadcast manager deletes the held message at a moment a duration longer than twice the predetermined repetition period elapses, and wherein the messages generated by the at least one object are delivered by exchanging the messages with the event manager in a one-to-one communication, and wherein the at least one object does not discriminate whether the destinations of the messages are outside or inside the information signal device.