05703655 is referenced by 162 patents and cites 5 patents.

The present invention is a system and method for retrieving segments of stored video programs using closed caption text data. The closed caption text data is extracted from video programming signals received by the invention. Text records based on the extracted closed caption data are generated. Each text record is derived from the closed caption data for a single continuous video segment to which the text record serves as an index or key in retrieving this video segment. Preferably, each text record (a) has sufficient content to adequately describe the content of the video segment to which it serves as an index; and (b) corresponds to a video segment focused on a small number of topics. To accomplish (a) and (b) the present invention generates each text record so that it has a predetermined maximum length and so that it is derived from the closed caption data for a single uninterrupted speaker. During video data retrieval, video requests or queries input by users are evaluated either by comparing query terms with terms in the text records, or by comparing an interpretation of query terms with an interpretation of terms in the text records. Subsequently, video segment location information associated with each text record satisfying a query is used to retrieve the video segment to which the text record is an index.

Title
Video programming retrieval using extracted closed caption data which has been partitioned and stored to facilitate a search and retrieval process
Application Number
410266
Publication Number
5703655
Application Date
June 19, 1996
Publication Date
December 30, 1997
Inventor
Bud C Wonsiewicz
Boulder
CO, US
Thomas K Landauer
Boulder
CO, US
Douglas Arthur Corey
Boulder
CO, US
Agent
Sheridan Ross
Assignee
U S West Technologies
CO, US
IPC
H04N 9/64
H04N 7/10
H04N 7/087
H04N 7/08
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