| http://www.w3.org/ns/prov#value | - Such closed caption data may be included in the data stream sent from STB to the TV. [0272] In such a case, passive monitoring could readily be applied to extract the closed caption stream, for example, by duplicating or piggybacking on standard TV receiver functions that obtain such signals, whether in a device constructed for this purpose, or in a TV or DVR or PC, or other available device.
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