Implementing and applying a database with radio station information that is gathered from client devices as stations become available to a plurality of users (i.e., crowd sourced radio station information) and allowing for a client device to download only the radio station information that is pertinent to the travel route of the user and/or radio station selection criteria associated with the client device or the user. Radio station information can be rendered via a graphical interface of a client device to allow the user to informatively select a new radio station, either before or as a current radio signal degrades to the point of being unusable. Radio station information may be rendered to cause the user's terrestrial radio to tune to a new station.

The present technology relates to a transmitting device, a transmitting method, a receiving device, and a receiving method, which are capable of improving immediacy and flexibility of an alert. A transmitting device generates transmission data in which an index associated with predetermined process-related information in a relevant table in which process-related information related to an output process of outputting an alert on a receiving side is registered in association with an index is included in data of a physical layer, the relevant table being included in data of a higher layer higher than the physical layer and supplied, and transmits the transmission data. The receiving device obtains a relevant table, receives transmission data, and acquires an index included in data of a physical layer from the transmission data. Then, the receiving device executes an output process corresponding to process-related information associated with the index included in the data of the physical layer in the relevant table. For example, the present technology can be applied in a case where an emergency alert is provided in television broadcasting.

The present technology relates to a transmitting device, a transmitting method, a receiving device, and a receiving method, which are capable of improving immediacy and flexibility of an alert. A transmitting device generates transmission data in which an index associated with predetermined process-related information in a relevant table in which process-related information related to an output process of outputting an alert on a receiving side is registered in association with an index is included in data of a physical layer, the relevant table being included in data of a higher layer higher than the physical layer and supplied, and transmits the transmission data. The receiving device obtains a relevant table, receives transmission data, and acquires an index included in data of a physical layer from the transmission data. Then, the receiving device executes an output process corresponding to process-related information associated with the index included in the data of the physical layer in the relevant table. For example, the present technology can be applied in a case where an emergency alert is provided in television broadcasting.

A transmission method for transmitting an emergency warning signal, pertaining to one aspect of the present disclosure, includes: generating control information, the control information including a flag indicating either presence or absence of information related to a region and, when the flag indicates presence, information related to the region; acquiring information related to emergency warning content; and generating the emergency warning signal including the control information and the information related to the emergency warning content. Thus, emergency warning (early warning) information can be transmitted with greater precision.

A transmission method for transmitting an emergency warning signal, pertaining to one aspect of the present disclosure, includes: generating control information, the control information including a flag indicating either presence or absence of information related to a region and, when the flag indicates presence, information related to the region; acquiring information related to emergency warning content; and generating the emergency warning signal including the control information and the information related to the emergency warning content. Thus, emergency warning (early warning) information can be transmitted with greater precision.

A method is described for the locationally selective transmission of a signal by radio. Both a transmitter and a receiver are synchronized to the same time reference. The receiver receiving and demodulating, at a time that is one of the specified times of the time reference, a signal transmitted by the transmitter, if the receiver has received the signal at a time that is one of the specified times. The method includes the transmitter determining a receive location within a receive zone to which it wishes to transmit the signal in selective fashion, a position in the receive zone being a function of a position of the transmitter and a signal runtime. The method also includes the transmitter transmitting the signal; and the receiver, which is situated inside the receive zone, receives and demodulates the signal.

A method is described for the locationally selective transmission of a signal by radio. Both a transmitter and a receiver are synchronized to the same time reference. The receiver receiving and demodulating, at a time that is one of the specified times of the time reference, a signal transmitted by the transmitter, if the receiver has received the signal at a time that is one of the specified times. The method includes the transmitter determining a receive location within a receive zone to which it wishes to transmit the signal in selective fashion, a position in the receive zone being a function of a position of the transmitter and a signal runtime. The method also includes the transmitter transmitting the signal; and the receiver, which is situated inside the receive zone, receives and demodulates the signal.

A transmission method for transmitting an emergency warning signal, pertaining to one aspect of the present disclosure, includes: generating control information, the control information including a flag indicating either presence or absence of information related to a region and, when the flag indicates presence, information related to the region; acquiring information related to emergency warning content; and generating the emergency warning signal including the control information and the information related to the emergency warning content. Thus, emergency warning (early warning) information can be transmitted with greater precision.

A transmission method for transmitting an emergency warning signal, pertaining to one aspect of the present disclosure, includes: generating control information, the control information including a flag indicating either presence or absence of information related to a region and, when the flag indicates presence, information related to the region; acquiring information related to emergency warning content; and generating the emergency warning signal including the control information and the information related to the emergency warning content. Thus, emergency warning (early warning) information can be transmitted with greater precision.

In one embodiment, a computer-implemented method of creating customized programming content for a user of a video content system includes accessing a user interest profile for the user, the user interest profile comprising a ranked list of a plurality of interest categories; locating at least one video segment corresponding to each of the interest categories of the user interest profile; calculating the correlation between the user interest profile and data describing each of the located video segment, and ranking the video segments based on the correlation; assembling the video segments into a customized video programming stream based on the ranking; and displaying the customized video programming stream to the user.