专利名称：Method and apparatus for retrieving data
from a broadcast signal
发明人：Dean J. Blackketter,Timothy F. Park申请号：US10869483申请日：20040616
公开号：US20040230991A1公开日：20041118
专利附图：
摘要：A broadcast signal is received that includes a data identifier that identifies dataassociated with the broadcast signal. The broadcast signal also includes the data
associated with the broadcast signal encoded in the broadcast signal. The data associated
with the broadcast signal includes an indicator to ignore the data identifier contained inthe broadcast signal. The system decodes the data encoded in the broadcast signal whileignoring the data identifier contained in the broadcast signal. The indicator to ignore thedata identifier contained in the broadcast signal may include an associated time periodduring which the data identifier should be ignored. The data identifier is broadcast in scanline twenty-one of a broadcast image. The data associated with the broadcast signal isencoded in vertical blanking interval lines of a broadcast image.
申请人：MICROSOFT CORPORATION
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