The present invention provides a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention provides a system capable of supporting future broadcast services in environments supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, efficient signaling methods capable of covering both terrestrial broadcast networks and the Internet in environments supporting future hybrid broadcast are provided.

The present invention provides a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention provides a system capable of supporting future broadcast services in environments supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, efficient signaling methods capable of covering both terrestrial broadcast networks and the Internet in environments supporting future hybrid broadcast are provided.

A method of acquiring and accumulating data from a server via a network is provided. A request is transmitted for a plurality of items of data and includes at least one ingestion marker associated with the data. The at least one ingestion marker represents a last occurrence of when a change was made to the data. Data is received with a transfer protocol in response to the request. The data has at least one associated ingestion marker different than the at least one associated ingestion marker transmitted with the request. The received data and the at least one associated ingestion marker is stored in memory. The request is transmitted and the data is received and stored electronically by an electronic client device communicating with the server over the network. A system of acquiring and accumulating Electronic Program Guide (EPG) data from a web-server over a network is also disclosed.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

Data streams are generally selected according to user preferences and transmitted to the user in general alignment with expressed preferences of the user. Such data streams may be music, including music videos. Users may indicate their general or specific preferences with regards to song, artists, or albums. Any other aspects or factors that might affect the user's preferences can be taken into account. A playlist is created that combines all of these factors. The playlist then serves as the basis for feeding the data streams to the user. Each user is able to express his or her own preferences and receive music corresponding to those preferences on an on-going basis.