A digital receiver for synchronizing multiple components delivered on a broadband network and a broadcast network, the digital receiver including a broadband network interface configured to receive broadband data including at least one audio component for a service via the broadband network, wherein the at least one audio component relates to a Dynamic Adaptive Streaming over HTTP (DASH) segment, wherein the broadband network comprises an internet network; a broadcast network interface configured to receive a broadcast signal including a video component for the service, first timing information, and second timing information via the broadcast network, wherein the broadcast signal further includes a MPD (Media Presentation Description) having a DASH representation containing a segment URL for the DASH segment delivered over the broadband network; and a processor configured to calculate an offset based on a receiver wall clock, and process at least one of the at least one audio component or the video component which is time-aligned based on the calculated offset.

The present disclosure provides methods, devices, systems, and storage mediums for live broadcast detection and data processing. In one exemplary embodiments, a user terminal device cooperates with a server and a camera device in a live broadcast system. The terminal device turns towards the camera device and outputs detection content within a detection time. It can be determined whether live broadcast content uploaded/captured by the camera device includes the detection content captured by the camera device within the detection time. If the detection content is found in the live broadcast content, it can be determined that unauthorized live broadcasting exists. Accordingly, corresponding measures can be taken to stop the unauthorized live broadcasting in a timely manner, which helps improve the security of user information.

The present disclosure provides methods, devices, systems, and storage mediums for live broadcast detection and data processing. In one exemplary embodiments, a user terminal device cooperates with a server and a camera device in a live broadcast system. The terminal device turns towards the camera device and outputs detection content within a detection time. It can be determined whether live broadcast content uploaded/captured by the camera device includes the detection content captured by the camera device within the detection time. If the detection content is found in the live broadcast content, it can be determined that unauthorized live broadcasting exists. Accordingly, corresponding measures can be taken to stop the unauthorized live broadcasting in a timely manner, which helps improve the security of user information.

Example techniques may involve a playback device modifying its playback configuration when the playback device is placed onto a device base. In an example implementation, the playback device may receive, via an 802.15-compatible radio of one or more network interfaces, one or more packets comprising data representing an identifier of the first device base. After receipt of the one or more packets, the playback device queries a database for state information corresponding to the identifier of the first device base and modifies a playback configuration of the playback device from a first configuration to a second configuration based on the queried state information corresponding to the identifier of the first device base.

Example techniques may involve a playback device modifying its playback configuration when the playback device is placed onto a device base. In an example implementation, the playback device may receive, via an 802.15-compatible radio of one or more network interfaces, one or more packets comprising data representing an identifier of the first device base. After receipt of the one or more packets, the playback device queries a database for state information corresponding to the identifier of the first device base and modifies a playback configuration of the playback device from a first configuration to a second configuration based on the queried state information corresponding to the identifier of the first device base.

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 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.

Provided is a broadcasting control apparatus configured to generate a system time for broadcasting control, the system time being synchronized with a reference time in accordance with a predetermined time protocol, and configured to correct, when leap second adjustment information indicating that leap second adjustment is scheduled to be completed at a first time in the reference time is received, the system time by a correction amount depending on a time length D over a correction period having the time length D from a second time earlier than the first time, the time length D being set such that a correction amount per second of the system time is equal to or less than a cycle corresponding to an inverse of a video frame rate.

Methods for determining a location of an unknown device (UD) from a plurality of known devices (KDs) are provided including receiving, at the UD, periodically broadcasted messages from each of a plurality of KDs. Corresponding arrival time stamp (T.sub.arrival-i-UD) of each periodically broadcasted message from each of the plurality of KDs are recorded. Each of the plurality of KDs are clock synchronized to a common clock source at a master device(MD). A departure time of the periodically broadcasted message from each of the plurality of KDs is known by the UD in master device time units (T.sub.depart-i-md). X, y and z coordinates of a location of each of the KDs is known by the UD. The x, y and z coordinates of an actual location of the UD is calculated using the x, y and z coordinates of each of the KDs, the recorded arrival times (T.sub.arrival-i-UD) of each of the periodically broadcasted messages from each of the plurality of KDs and the known departure times of each of the periodically broadcasted messages (T.sub.depart-i-md) from each of the plurality of KDs.

Methods for determining a location of an unknown device (UD) from a plurality of known devices (KDs) are provided including receiving, at the UD, periodically broadcasted messages from each of a plurality of KDs. Corresponding arrival time stamp (T.sub.arrival-i-UD) of each periodically broadcasted message from each of the plurality of KDs are recorded. Each of the plurality of KDs are clock synchronized to a common clock source at a master device(MD). A departure time of the periodically broadcasted message from each of the plurality of KDs is known by the UD in master device time units (T.sub.depart-i-md). X, y and z coordinates of a location of each of the KDs is known by the UD. The x, y and z coordinates of an actual location of the UD is calculated using the x, y and z coordinates of each of the KDs, the recorded arrival times (T.sub.arrival-i-UD) of each of the periodically broadcasted messages from each of the plurality of KDs and the known departure times of each of the periodically broadcasted messages (T.sub.depart-i-md) from each of the plurality of KDs.

A transmitting method for transmitting contents using a broadcast wave and a communication path comprises: including content information in application control information when transmitting the contents using both the broadcast wave and the communication path, the content information being information for synchronizing a content transmitted by using the broadcast wave with a content transmitted by using the communication path at a reception side that receives the contents and being related to the content transmitted by using the communication path; and transmitting the application control information by using at least the broadcast wave in the broadcast wave and the communication path. As a result, a contents transmitting method is provided for enabling a quick access to contents through communication when the contents are reproduced by a combination of broadcast and communication on the receiving side.