Patent ID: 7698468

Claim:
A selective device recognition apparatus in a UPnP based home network, the apparatus comprising: a network stream processing unit configured to parse a device characteristic data of a device and to read a network transmission possible identifier and a device characteristic identifier, the device being automatically detectable in the UPnP based home network, wherein the network transmission possible identifier is set to recognize a device according to a user's authority; and a network transmission judging unit configured to compare the read network transmission possible identifier with a preset network transmission possible identifier recorded in a transmission judgment table, and to judge whether to perform network transmission of the device characteristic data according to a result of the comparison, wherein the network transmission judging unit is configured to transmit a disable signal for intercepting a transmission of the device characteristic data only when the network transmission possible identifier read from the network stream processing unit and the preset network transmission possible identifier are different, and to transmit the device characteristic data only when the network transmission possible identifier read from the network stream processing unit is matched with the preset network transmission possible identifier, wherein the network stream processing unit includes: a preprocessor configured to parse the device characteristic data; a buffer manager configured to temporally store the device characteristic data parsed in the preprocessor in a buffer and to output a registry signal corresponded thereto; and an identifier reader configured to search the device characteristic data temporally stored in the buffer according to the registry signal outputted from the buffer manager and read the device characteristic identifier and the network transmission possible identifier.