The present invention relates to a digital broadcasting system for transmitting/receiving a digital broadcasting signal and a method of processing data. In one aspect of the present invention provides a method of processing data, the method including receiving a broadcasting signal in which mobile service data and main service data are multiplexed, demodulating the received broadcasting signal, obtaining an identifier indicating that data frame of the broadcasting signal includes service guide information, decoding and storing the service guide information from the data frame; and outputting a service included in the mobile service data according to the decoded service guide information.

The present invention relates to a digital broadcasting system for transmitting/receiving a digital broadcasting signal and a method of processing data. In one aspect of the present invention provides a method of processing data, the method including receiving a broadcasting signal in which mobile service data and main service data are multiplexed, demodulating the received broadcasting signal, obtaining an identifier indicating that data frame of the broadcasting signal includes service guide information, decoding and storing the service guide information from the data frame; and outputting a service included in the mobile service data according to the decoded service guide information.

The present invention provides systems and methods that enable the delivery of rich digital content over terrestrial base frequency modulated broadcast systems. The digitally rich content may include, but not limited to live or recorded video, command and control information. Access to the content may be on a free, pay-per-use, pay-per-view, or pay-per-broadcast or multicast method.

A method for processing a digital audio broadcast signal in a radio receiver includes: receiving a digital audio broadcast signal; demodulating the digital audio broadcast signal to produce an analog audio stream and a digital audio stream; determining a digital signal quality value for the digital audio stream; blending an output of the radio receiver from the analog audio stream to the digital audio stream when the digital signal quality value exceeds an adaptive analog-to-digital threshold value; and blending the output of the radio receiver from the digital audio stream to the analog audio stream when the digital signal quality value falls below an adaptive digital-to-analog threshold value, wherein the adaptive digital-to-analog threshold value is lower than the adaptive analog-to-digital threshold value.

Different applications are activated for respective multiple programs. A component demultiplexing unit (34) that receives an MH-AIT (141) indicating an application corresponding to each of packages, a combining unit (38) and an audio decoding unit (36) that reproduce one of the packages, and a data broadcasting control unit (37) that controls an application corresponding to a package, which is being reproduced, by referring to the MH-AIT (141) are included.

A broadcast transmission system according to an aspect of the present invention includes a broadcast network controller and a broadcast network switch, thereby transmitting an Internet protocol (IP) stream for a service that cannot be transmitted through one physical layer pipe (PLP) by distributing the IP stream into a combination of one or more PLPs. In this case, the combined PLPs may be in one or more broadcast network frequency bands. The broadcast network controller determines the combination of PLPs, and the broadcast network switch distributes the IP stream into one or more PLPs according to a control command of the broadcast network controller.

Systems and methods are provided for broadcasting a signal. A multiplexer combines a first signal from a first signal source and a second signal from a second signal source as a time divisional multiplexed signal and provides a timing signal, distinct from the time division multiplexed signal, that indicates, for a given time, from which of the first and the second signal source a corresponding portion of the time divisional multiplexed signal originated. A signal conditioning component receives each of the time divisional multiplexed signal and the timing signal and alters the time division multiplexed signal in a manner that prepares the signal for broadcast. The signal conditioning component dynamically alters its behavior according to the timing signal. An antenna transmits the time division multiplexed signal.

Systems and methods are provided for broadcasting a signal. A multiplexer combines a first signal from a first signal source and a second signal from a second signal source as a time divisional multiplexed signal and provides a timing signal, distinct from the time division multiplexed signal, that indicates, for a given time, from which of the first and the second signal source a corresponding portion of the time divisional multiplexed signal originated. A signal conditioning component receives each of the time divisional multiplexed signal and the timing signal and alters the time division multiplexed signal in a manner that prepares the signal for broadcast. The signal conditioning component dynamically alters its behavior according to the timing signal. An antenna transmits the time division multiplexed signal.

An input unit 21 receives the input of conventional image-quality playback data adapted to terrestrial digital television broadcast and high image-quality playback data. A combining unit 22 combines the conventional image-quality playback data and the high image-quality playback data. A data configuration unit 23, on the basis of combined data obtained by combining the conventional image-quality playback data and the high image-quality playback data by means of the combining unit 22, generates data for one polarized antenna transmission and data for another polarized antenna transmission.

A method for processing audio signals in a radio transmitter, includes: receiving an analog audio sample stream and a digital audio sample stream; determining offsets in time between the analog audio stream and the digital audio stream using a normalized cross-correlation of audio envelopes of the analog audio sample stream and the digital audio sample stream; filtering the determined offsets in time to produce filtered offset values; determining an alignment slip adjustment value as a function of the filtered offset values; aligning the analog audio sample stream and the digital audio sample stream using the determined alignment slip adjustment value; and generating a hybrid radio signal for broadcast that includes time-aligned analog audio and digital audio.