US Patent No: 6,243,676

Number of patents in Portfolio can not be more than 2000

Searching and retrieving multimedia information

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Abstract

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A method retrieves a multi-media segment from a signal stream having an audio component and a closed caption component. This includes separating the audio component and the closed caption text component from the signal stream, generating an audio pattern representative of the start of the multi-media segment, locating the audio pattern in the audio component, and temporally aligning the text from the closed caption text component with the audio pattern in the audio component. Locating the audio pattern in the audio component includes retrieving text from the closed caption text component; and comparing the text against one or more keywords delimiting the multi-media segment. Once located, the multi-media segment may be played on-demand. In addition, an apparatus retrieves a multi-media segment from a signal stream, the signal stream having an audio component and a closed caption text component. The apparatus includes a decoder for separating the audio component and the closed caption text component from the signal stream, an audio synthesizer coupled to the decoder for generating an audio pattern representative of the start of the multi-media segment, a pattern recognizer coupled to the decoder and to the audio synthesizer for locating the audio pattern in the audio component, and an aligner coupled to the pattern recognizer and to the decoder for temporally aligning the text with the audio pattern in the audio component. The apparatus also plays the multi-media segment on-demand.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
UNWIRED PLANET, LLCRENO, NV974
AT MOTION, INC.REDWOOD CITY, CA3

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Witteman, Bradley James San Mateo, CA 5 157

Cited Art Landscape

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Patent Citation Ranking

Forward Cite Landscape

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