Retrieval of additional information not found in interactive TV or telephony signal by application using dynamically extracted vocabulary

A real time recognition system comprising:

• means for extraction of a target vocabulary from a current stream of information;
• a buffer to store said target vocabulary as said target vocabulary is updated;
• means for a user who views said current stream of information to make a request for additional information about an entry in said target vocabulary extracted from said current stream;
• and
• a recognition processor that converts said user's request into a matched topic against said target vocabulary.

A dynamic dictionary comprising:

• an input information stream having a primary stream and a secondary stream, said secondary stream comprising a plurality of recognizable information components;
• a recognizer for receiving said information stream, recognizing and selecting said plurality of recognizable information components;
• and
• a buffer for storing said plurality of recognizable information components selected by said recognizer for a predetermined time.

A real time user voice recognition system interacting with an application, said application being capable of providing additional information for a plurality of topics, said system comprising:

• means for extracting an updated target vocabulary from a current stream of information having a format for viewing;
• a buffer for receiving said updated target vocabulary as said updated target vocabulary is extracted and for storing said updated target vocabulary for a predetermined time;
• means for said user viewing said current stream of information to make a request for an amount of additional information, not provided in said current stream of information, about at least one entry of said updated target vocabulary recently referred to in said stream of information;
• a recognition processor for converting said request into a matched topics against said updated target vocabulary, and for relaying said matched topic to said application;
• means for retrieving said amount of additional information from said plurality of topics of said application;
• and
• means for sending said amount of additional information to said user via a retrieved signal stream in said format for viewing.

A recognition method for receiving an input signal form a program and displaying said program on a program display medium to a user, said input signal having a plurality of information components for which an application can provide expanded information not provided in said input signal, said method comprising the steps of:

• extracting each of said plurality of information components from said input signal;
• storing in a buffer each of said plurality of information components extracted for a predetermined time;
• responding to a request from said user to receive said expanded information regarding at least one of said plurality of information components extracted;
• matching said request to said information components extracted;
• and
• forwarding said match to said application whereupon said application provides said expanded information for display on said displaying medium.

A method for forming a real time recognition system that comprises the steps of:

• extracting a target vocabulary from a current stream of information;
• receiving said target vocabulary in a buffer as said target vocabulary is updated and storing said target vocabulary in said buffer for a predetermined time;
• responding to a current user's request for additional information not provided in said stream of information about an entry in said target vocabulary;
• and
• matching said user's request against said buffered vocabulary.

A method for forming a dynamic dictionary comprising the steps of:

• providing an input information stream having a first stream and a second stream, said second stream comprising a plurality of recognizable information components;
• recognizing and selecting said information components;
• and
• storing said selected information components in a buffer for a predetermined time.