Patent ID: 7535518
Filing Date: 2009-05-19
Classification: H04N

Abstract:
1. A method for displaying a digital broadcasting, the method comprising: displaying an audio/video (A/V) broadcast signal and a first data broadcast signal based on an Open Cable based broadcasting standard; tuning to a second data broadcast signal based on an ATSC (Advanced Television Systems Committee) based broadcasting standard different than the Open Cable based broadcasting standard in response to a request for a modification of the first data broadcast signal being displayed; and displaying the tuned second data broadcast signal based on the ATSC based broadcasting standard, wherein when the A/V broadcast signal is a first A/V broadcast signal including the first data broadcast signal, the first A/V broadcast signal is received and tuned through a first tuner, wherein when the A/V broadcast signal is a second A/V broadcast signal including the second data broadcast signal, the second A/V broadcast signal is received and tuned through a second tuner, wherein when the first A/V broadcast signal is received and tuned through the first tuner, a first transport packet processor connected to an output of the first tuner extracts the first data broadcast signal from the first A/V broadcast signal, and when the second A/V broadcast signal is received and tuned through the second tuner, a second transport packet processor connected to an output of the second tuner extracts the second data broadcast signal from the second A/V broadcast signal, wherein a data processor connected to the first and second transport packet processors processes the corresponding first and second data broadcast signals, and an A/V processor connected to the first and second transport packet processors processes the corresponding first and second A/V broadcast signals such that any one of the first and second data broadcast signals can be displayed together with any one of the first and second A/V broadcast signals, and wherein the tuning step tunes to the second data broadcast signal based on the ATSC based broadcasting standard without a user requesting for information related to the first A/V broadcast signal.