According to one aspect of the present disclosure, a transmission method for enabling transmission of content using a broadcast and a communication channel includes: transmitting playback control information and service information using at least the broadcast wave, the service information being information for playing back content transmission using the broadcast and content transmission using the communication channel when the content is transmitted using the broadcast and the communication channel. The service information includes attribute information indicating that the first content data and the second content data constitute the content and location information that indicates a location for acquiring meta-information on playback control of the second content. The playback control information includes indexes of a relationship between the first content data and the second content data.

A system and method for conducting a refractive examination of an eye of a patient, has a communication device with a communication module that connects to the internet, a processor that is programmed to connect to a remote computer via the communication module and which has a display screen, a microphone and a speaker. The remote computer has a data storage device that stores images of eye charts. The communication device is mounted in a virtual reality headset configured to be worn by the patient and has at least one screen through which the display screen of the communication device is viewable. The communication device displays images in the form of the eye charts to the patient, who communicates through the communication to a remote examiner who conducts the refractive examination using multiple different eye charts to determine the prescription of the patient.

A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information.

A receiving device, a receiving method, a transmitting device, and a transmitting method. The receiving device acquires a digital broadcast signal that includes audio-video (AV) content and location information, the location information indicating a source from which application control information for controlling an operation of an application executed in conjunction with a progressing timing of the AV content is obtainable, acquires the application control information from the source indicated by the location information, the application control information including an application ID and a uniform resource locator (URL), obtains, from the URL included in the acquired application control information, control information during a polling period that is defined in accordance with an attribute specified in the acquired application control information, and controls the operation of the application based on the acquired application control information and the obtained control information.

The present invention relates to a system installed in the digital TV receiver that provides the broadcaster with a secure method for ingesting alternative video and/or audio media, in place of passages of main video and/or audio, with a view to customizing the experience of the consumer identified during the digital video and/or audio consumer experience. The system is intended to provide the consumer with the best possible experience without any interruptions, loss of fluidity or loss of consistency in the playback of the alternative video and/or audio. The system provides a method for continuously verifying suitable conditions for playing back alternative video and audio.

A receiving device, a receiving method, a transmitting device, and a transmitting method. The receiving device acquires a digital broadcast signal that includes audio-video (AV) content and location information, the location information indicating a source from which application control information for controlling an operation of an application executed in conjunction with a progressing timing of the AV content is obtainable, acquires the application control information from the source indicated by the location information, the application control information including an application ID and a uniform resource locator (URL), obtains, from the URL included in the acquired application control information, control information during a polling period that is defined in accordance with an attribute specified in the acquired application control information, and controls the operation of the application based on the acquired application control information and the obtained control information.

A method of receiving and process a broadcast signal including a Non-Real Time (NRT) service and a broadcast receiver are disclosed herein. A method of processing a broadcast signal including a Non-Real Time (NRT) service, the method comprises receiving and processing a signaling information table including access information of the NRT service, receiving and storing data of the NRT service based on the signaling information table in non-real time, extracting access information of additional information relating to the NRT service from the signaling information table, and downloading the additional information relating to the NRT service based on the extracted access information.

Over-the-air radio broadcast signals are commonly used to deliver a variety of programming content (e.g., audio, etc.) to radio receiver systems. Supplemental data (e.g., metadata) may be provided to radio broadcast receiver systems, where such supplemental data is associated with the programming content delivered via the over-the-air radio broadcast signals. In exemplary embodiments described herein, a radio receiver system receives both (i) primary programming content via over-the-air radio broadcast transmission, and (ii) metadata related to the programming content via wireless Internet. This use of metadata provides a user with an enhanced experience regardless of the type of terrestrial broadcast signal that is received at the user's radio receiver system. Users receiving radio broadcast signals at a receiver system may view images, videos, multimedia displays, text, etc., that is related to the programming content received via the over-the-air radio broadcast signals.

The subject matter of this specification can be embodied in, among other things, a method that includes identifying metadata related to television programming. The method further includes sending search requests that include the identified metadata to a search system for selecting at least one portable program module. The method further includes in response to a first one of the search requests, receiving first search results from the search system that identify the selected portable program module and outputting a representation of the selected portable program module to a display device for presentation concurrently with the television programming. The method further includes in response to a second one of the search requests, receiving second search results from the search system that no longer identify the selected portable program module and ceasing the output of the representation of the selected portable program module.

A system and method for populating an available radio station broadcast list on a mobile device configured with a radio transmitter is disclosed. The method comprises identifying a plurality of radio stations in a database, each of the plurality of radio stations having a radio station broadcast area, each radio station broadcast area comprising a radio station transmitter location and a plurality of broadcast edge points, receiving a request, from the user device, for a list of available radio stations, the request comprising a geographic location of the user device, determining, for each of the plurality of radio stations, one broadcast edge point in the plurality of broadcast edge points that resides on a line defined by the radio station transmitter location, the geographic location of the user device, and the one broadcast edge point, and transmitting, to the user device, each radio station in the plurality of radio stations where the one broadcast edge point is further from the radio station transmitter location than the geographic location of the user device.