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Retrieval of additional information not found in interactive TV or telephony signal by application using dynamically extracted vocabulary
Retrieval of additional information not found in interactive TV or telephony signal by application using dynamically extracted vocabulary
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机译:应用程序使用动态提取的词汇表检索在交互式电视或电话信号中找不到的其他信息
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摘要
A method and apparatus is provided to enable a user watching and/or listening to a program to retrieve supplemental information or supplemental entertainment pertaining to an item just seen or words just heard. The apparatus includes a recognition system which recognizes the user's request and causes its satisfaction to be provided. A dynamically changing dictionary is created from items or keywords extracted from the most recently received program portion. The items or keywords may be contained in closed caption text in a TV signal. Particular items or keywords may be assigned a high priority so that they are maintained in the dictionary for a long duration. The user's request is matched against this continually changing dictionary. Upon recognition of the request, a search is initiated to access, import and deliver to the user the information required to satisfy the request. The information may be presented to the user separately or in coincidence with the normal program using picture in picture or split screen. Alternate embodiments enable preprocessing to obtain and store expanded information for such items and keywords deemed to be of high priority. This speeds up the satisfaction of the user's request for these items or keywords.
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