13. An information processing apparatus, comprising: a recognition word dictionary generating unit that acquires, from a search server, a search keyword list containing the search keywords searched by the search server and rank information associated with the search keyword list to generate a recognition word dictionary containing words for use in language recognition; a broadcast text information receiving unit that receives broadcast text information transmitted from a broadcasting station; a keyword detection unit that detects predetermined keywords from the broadcast text information by referencing the recognition word dictionary; and an external display device connection control unit that performs connection control with an external display device and outputs the keywords detected from the broadcast text information to the external display device, wherein the search server represents a website that provides a keyword search service and a directory search service so that a user uses the search server to search for information available through Internet.
13. An information processing apparatus, comprising: a recognition word dictionary generating unit that acquires, from a search server, a search keyword list containing the search keywords searched by the search server and rank information associated with the search keyword list to generate a recognition word dictionary containing words for use in language recognition; a broadcast text information receiving unit that receives broadcast text information transmitted from a broadcasting station; a keyword detection unit that detects predetermined keywords from the broadcast text information by referencing the recognition word dictionary; and an external display device connection control unit that performs connection control with an external display device and outputs the keywords detected from the broadcast text information to the external display device, wherein the search server represents a website that provides a keyword search service and a directory search service so that a user uses the search server to search for information available through Internet. 15. The information processing apparatus according to claim 13 , wherein the broadcast text information receiving unit acquires reception channel information concerning a broadcast channel through which the external display device is receiving, from the external display device connected to the information processing apparatus, and acquires the broadcast text information corresponding to the broadcast channel from the broadcasting station.