Non-closed caption data transport in standard caption service

A method for performing a process, the method comprising:

• receiving, by circuitry of a reception apparatus, a digital television signal including a caption data stream and a closed caption service descriptor that identifies a first Standard caption service that includes first closed caption text;
• extracting, by the circuitry, non-closed caption data from a second Standard caption service, which is different from the first Standard caption service and has a number representative of an adjunct data channel of the caption data stream, irrespective of whether the second Standard caption service having the number representative of the adjunct data channel is identified in the closed caption service descriptor as including second closed caption text;
• processing, by the circuitry, the extracted non-closed caption data;
• and
• processing the second closed caption text when the closed caption service descriptor indicates that the second closed caption text is included in the second Standard caption service and the second closed caption text is selected for display.

A non-transitory computer-readable medium storing a program which when executed by a computer causes the computer to perform a method for performing a process, the method comprising:

• receiving a digital television signal including a caption data stream and a closed caption descriptor that identifies a first Standard caption service that includes first closed caption text;
• extracting non-closed caption data from a second Standard caption service, which is different from the first Standard caption service and has a number representative of an adjunct data channel of the caption data stream, irrespective of whether the second Standard caption service having the number representative of the adjunct data channel is identified in the closed caption service descriptor as including second closed caption text;
• processing the extracted non-closed caption data;
• and
• processing the second closed caption text when the closed caption service descriptor indicates that the second closed caption text is included in the second Standard caption service and the second closed caption text is selected for display.