Information descriptor and extended information descriptor data structures for digital television signals
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Abstract
According to an aspect, there is provided a digital television (DTV) data stream including program and system information protocol (PSIP) data associated with content of the DTV data stream, the PSIP data including a virtual channel table (VCT) and an event information table (EIT), the EIT comprising: a source identification field identifying a source of an associated event in a DTV data stream; an event identification field indicating an identification of the event; a start time field indicating a star time of the event; a title field indicating a title of the event; and a descriptor comprising: a descriptor tag identifying the descriptor as a genre descriptor; a descriptor length indicating a total length of the descriptor; and at least one category code for an associated event in a DTV data stream, each category code specifying genre, program type, or category information of the associated event, wherein the at least one category code specifies at least one of a set of basic categories.
89 Citations
24 Claims
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1-17. -17. (canceled)
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18. A method of processing a digital television (DTV) signal containing program and system information protocol (PSIP) data in a DTV receiver, the method comprising:
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parsing an event information table (EIT) from the DTV signal; parsing an information type descriptor from the parsed EIT, the information type descriptor including an information type identification field that contains a code specifying a data type of a graphic to be displayed on a display screen, the graphic being associated with an event identified by the EIT, wherein the information type descriptor further includes an information description field that contains description data associated with the data type of the graphic, and the graphic is received from a digital television (DTV) transmitter; and displaying the graphic in an Electronic Program Guide (EPG) using at least one of the data type of the graphic and the description data associated with the data type of the graphic. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification