Methods and systems for improved detection of audio transmissions are provided. In one embodiment, a method is provided that includes receiving an audio signal containing an audio transmission. The audio transmission may contain a predetermined portion that was initially generated based on an expected sequence of complex-valued signals. A real portion of the expected sequence of complex-valued signals may be compared to the received audio signal to identify a first portion of the received audio signal. A complex portion of the expected sequence may be compared to portions of the received audio signal near the first portion of the received audio signal to identify a second portion of the received audio signal. An arrival time of the audio transmission may be determined based on the second portion of the received audio signal.

Methods and systems for improved detection of audio transmissions are provided. In one embodiment, a method is provided that includes receiving an audio signal containing an audio transmission. The audio transmission may contain a predetermined portion that was initially generated based on an expected sequence of complex-valued signals. A real portion of the expected sequence of complex-valued signals may be compared to the received audio signal to identify a first portion of the received audio signal. A complex portion of the expected sequence may be compared to portions of the received audio signal near the first portion of the received audio signal to identify a second portion of the received audio signal. An arrival time of the audio transmission may be determined based on the second portion of the received audio signal.

Systems and methods that may facilitate synchronizing the presentation of a program on multiple devices are disclosed. Amounts by which each device may delay its presentation of a program may be determined and/or sent to the devices.

An over-air media server obtains first media content, including external content stored in a location external to the over-air media server, and delivers it for broadcast via on-air broadcast chain. A streaming media server is in communication with the over-air media server and a streaming broadcast chain. The streaming media server operates in a synchronized mode, during which it delivers, under control of the over-air media server, second media content to a streaming broadcast chain. The streaming server transitions from the synchronized mode to an independent mode, during which it delivers the second media content to the streaming broadcast chain independent of control by over-air media server. While operating in the independent mode the streaming media server obtains the second media content, including obtaining external content, from the same location from which over-air media server obtains its external content. The second media content is delivered to the streaming broadcast chain independent of control by the over-air media server.

An over-air media server obtains first media content, including external content stored in a location external to the over-air media server, and delivers it for broadcast via on-air broadcast chain. A streaming media server is in communication with the over-air media server and a streaming broadcast chain. The streaming media server operates in a synchronized mode, during which it delivers, under control of the over-air media server, second media content to a streaming broadcast chain. The streaming server transitions from the synchronized mode to an independent mode, during which it delivers the second media content to the streaming broadcast chain independent of control by over-air media server. While operating in the independent mode the streaming media server obtains the second media content, including obtaining external content, from the same location from which over-air media server obtains its external content. The second media content is delivered to the streaming broadcast chain independent of control by the over-air media server.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that permit efficient transfer of time and other information. The transmission device generates a physical layer frame having preambles and a payload that includes, in the preamble, time information representing time of a given position in a stream of physical layer frames and transmits the physical layer frame. The reception device receives the physical layer frame and performs processes using time information. The present technology is applicable, for example, to IP packet broadcasting.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that permit efficient transfer of time and other information. The transmission device generates a physical layer frame having preambles and a payload that includes, in the preamble, time information representing time of a given position in a stream of physical layer frames and transmits the physical layer frame. The reception device receives the physical layer frame and performs processes using time information. The present technology is applicable, for example, to IP packet broadcasting.

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.

This disclosure is directed to methods, apparatuses, and systems for providing content streams with highly targeted, interactive content in a personalized manner. A content producer can generate a user-generic content stream associated with one or more user-specific content flags, which can describe how the user-specific content can be presented along with the content stream. A content-provider can purchase or otherwise acquire the rights to insert their user-specific content into another content provider's user-generic content. Both the user-specific and user-generic content can be provided to the user by means of a voice-controlled device associated with a cloud-based profile of the user. A user can interact with the personalized content to receive supplemental information.