200results about "Broadcast information characterisation" patented technology

In aspects of automatic selection of audio broadcast based on direction, a media playback manager detects an available Bluetooth Low Energy (BLE) audio broadcast from a media device. Based on a location of a tag associated with the media device, the media playback manger determines a position of a wireless device relative to the media device. The media playback manager then receives the BLE audio broadcast at the wireless device based on the position of the wireless device relative to the location of the tag that is associated with the media device.

A method for processing media data according to embodiments may comprise the steps of: receiving service list provision information; transmitting region selection information on the basis of the service list provision information; and receiving media data on the basis of the region selection information.

The invention improves HOA sound field representation compression. The HOA representation is analysed for the presence of dominant sound sources and their directions are estimated. Then the HOA representation is decomposed into a number of dominant directional signals and a residual component. This residual component is transformed into the discrete spatial domain in order to obtain general plane wave functions at uniform sampling directions, which are predicted from the dominant directional signals. Finally, the prediction error is transformed back to the HOA domain and represents the residual ambient HOA component for which an order reduction is performed, followed by perceptual encoding of the dominant directional signals and the residual component.

Disclosed are systems, methods, and computer program products for improving establishment and broadcasting of communication among mobile computing devices. An exemplary method includes: determining a first user accesses a mobile application on a first mobile device of the first user; determining a second user accesses the mobile application on a second mobile device of the second user; transmitting first content from the first user to the second user; receiving, from the second user, a first action associated with the first user; transmitting second content from the second user to the first user; receiving, from the first user, a second action associated with the second user; generating a communication channel for interaction between the first user and the second user; determining a third user accesses the mobile application on a third mobile device of the third user; and transmitting third content from the third user to the second user.

Gain factors for amplifying audio data of live broadcasts from mobile devices are selected to ensure that distortions of audio data subsequently generated during the live broadcasts remain within targeted distortion ranges. When a creator initiates a live broadcast from a personal device, audio data captured by the personal device is subjected to amplification and a level of distortion of the audio data is determined. A gain factor for amplifying audio data subsequently captured during the live broadcast is calculated based on a previous gain factor, as well as distortion of the audio data resulting from hard or soft clipping, or any other basis. The gain factor may increase, decrease or remain constant, depending on the prior gain factor and the previously observed distortion.

Disclosed are systems, methods, and computer program products for improving establishment and broadcasting of communication among mobile computing devices. An exemplary method includes: determining a first user accesses a mobile application on a first mobile device of the first user; determining a second user accesses the mobile application on a second mobile device of the second user; transmitting first content from the first user to the second user; receiving, from the second user, a first action associated with the first user; transmitting second content from the second user to the first user; receiving, from the first user, a second action associated with the second user; generating a communication channel for interaction between the first user and the second user; determining a third user accesses the mobile application on a third mobile device of the third user; and transmitting third content from the third user to the second user.

A plurality of auxiliary transmitters associated with at least one main transmitter, transmitting broadcast area wide programming for their respective broadcast areas, wherein a mechanism enables switching on transmission of localized auxiliary information content by at least one of the plurality of auxiliary transmitters, wherein the at least one of plurality of auxiliary transmitters transmits localized auxiliary information content on a single frequency network transmission frequency, and wherein the localized auxiliary information content includes a data item that enables retrieval of promotional information from a remote server, when the data item is analyzed by a software application.

A method and apparatus for decompressing a Higher Order Ambisonics (HOA) signal representation is disclosed. The apparatus includes an input interface that receives an encoded directional signal and an encoded ambient signal and an audio decoder that perceptually decodes the encoded directional signal and encoded ambient signal to produce a decoded directional signal and a decoded ambient signal, respectively. The apparatus further includes an extractor for obtaining side information related to the directional signal and an inverse transformer for converting the decoded ambient signal from a spatial domain to an HOA domain representation of the ambient signal. The apparatus also includes a synthesizer for recomposing a Higher Order Ambisonics (HOA) signal from the HOA domain representation of the ambient signal and the decoded directional signal. The side information includes a direction of the directional signal selected from a set of uniformly spaced directions.

To provide a transmission method and the like capable of causing a receiving device to play a predetermined data unit at an intended time.SOLUTION: The transmission method is a method of storing a data constituting an encoded stream in a predetermined data unit and sending the same. A piece of presentation time information that represents the presentation time of the predetermined data unit is generated based on time information, and the predetermined data unit, the generated presentation time information, and a piece of identification information indicating whether the presentation time information was generated based on time information before leap second adjustment are transmitted. The identification information is stored in (i) the control message, which is control information, (ii) the presentation time information represents whether the information is generated based on time information from a time a predetermined period before the time immediately before the leap second adjustment is made to the time immediately before the leap second adjustment is made. The presentation time information is time information generated by subtracting a predetermined time from the time information. The control information includes a UTC-NPT reference descriptor that indicates the relationship between UTC time and NPT time.SELECTED DRAWING: Figure 92

The present invention discloses an abnormal self-detection method, system, device and medium for a PIS broadcast system. The method includes controlling the first speaker and microphone to work, and according to the first preset sound acquisition strategy, controlling the microphone to collect the first sound signal, and judging whether the first broadcast device is abnormal according to the first sound signal; when the first broadcast device is abnormal, performing abnormal positioning according to the detected first line current of the first broadcast device; when the first broadcast device is normal, judging whether the second broadcast device is abnormal according to the detected second line current; when an abnormality occurs, controlling the second speaker and microphone to work respectively, and according to the second preset sound acquisition strategy, controlling the microphone to collect the second sound signal, and performing abnormal positioning on the second broadcast device according to the second sound signal. The present invention can respectively realize the abnormal self-detection and abnormal positioning of two kinds of broadcast devices, with high reliability and helpful for subsequent maintenance.

To provide a content protection method when a video content received by advanced BS digital broadcasting / advanced broadband CS digital broadcasting is output via an IP interface.SOLUTION: A video content processing apparatus according to an embodiment includes: in a broadcast signal receiving device that receives at least one of a broadcast signal multiplexed by MPEG-2 and, a broadcast signal multiplexed by a MMT-TLV system, receiving means that receives a content transmitted by the broadcast signal; output means having an IP interface; and control means that performs processing of outputting the content via the output means according to a format of a content protection system by DTCP2. The video content processing apparatus protects the content by determining at least one of values set in SDO and EI using a value of transfer_characteristics or video_transfer_characteristics accompanying the content received by the receiving means.SELECTED DRAWING: Figure 1

To perform appropriate audio reproduction depending on the receiver's capabilities.SOLUTION: A receiver that receives broadcasting that includes MPEG-H audio in an audio component obtains identification information indicating whether the MPEG-H audio is present from broadcast airwaves at a multiplexing layer, and selects the audio component according to the receiver's capabilities on the basis of the identification information, and decodes the audio data of the selected audio component.SELECTED DRAWING: Figure 15

Digital radio signals and apparatuses for providing or receiving such signals are described. A digital radio signal has one or more of a link type indicator, indicating the source of image content. A further digital radio signal has compressed SVG data. A further digital radio signal has an indicator indicating a presentation style for text information. A further digital radio signal has an indication of a target group for an information object. A further digital radio signal has signature data. A further digital radio signal has a predetermined start object identifier.

Methods, apparatuses, and systems for haptic signal processing are provided. In one embodiment, a process includes receiving a media stream including data in one of a haptic exchange format and a haptic streaming format; under the condition that the data adopts the tactile exchange format, obtaining a mode of an input document of the media stream, semanteme of the input document, verifying the mode by contrasting a reference mode and verifying the semanteme by contrasting a rule table; where the data is in a haptic streaming format: decoding a code stream from at least a portion of the media stream, and identifying at least one of a syntax and a condition of the code stream; and controlling decoding of the media stream based on any of the verification features.

A radio data receiving device includes a memory, and a processor operatively connected to the memory, wherein the processor is configured to receive a zeroth stream based on a first frequency band about a radio data system (RDS), receive a first stream based on a second frequency band in which the RDS is extended, receive a second stream based on a third frequency band in which the RDS is extended, receive a third stream based on a fourth frequency band in which the RDS is extended, and provide a service about RDS data based on at least one of the first stream, the second stream, or the third stream.

To provide a technique for more suitably transmitting or receiving advanced digital broadcasting services.SOLUTION: A composite wave is transmitted that is a combination of an upper hierarchical modulated wave and a lower hierarchical modulated wave having different transmission power in the same frequency band. A difference in transmission power between the upper hierarchical modulated wave and the lower hierarchical modulated wave is changed, and information regarding the difference in transmission power is included in either the upper hierarchical modulated wave or the lower hierarchical modulated wave and transmitted. The information regarding the difference in transmission power includes identification information indicating the difference in transmission power in a plurality of stages, and the stages indicated by the identification information are configured to transition irreversibly due to the change in the difference in transmission power in a transmission power change step.SELECTED DRAWING: Figure 2A

Wireless-enabled loudspeaker includes a capacitive touch user interface. The loudspeaker may comprise at least one electroacoustic transducer, a processor in communication with the at least one electroacoustic transducer, and an exterior surface comprising a capacitive touch user interface that allows a user to control operation of the loudspeaker. The exterior surface acts a dielectric for the capacitive touch user interface. The loudspeaker may comprise a wireless transceiver circuit for receiving and transmitting wireless communication signals via a wireless network. The wireless transceiver circuit may receive wirelessly audio content from streaming audio content servers that are connected to the Internet. The capacitive touch user interface comprises a plurality of capacitive sense electrodes.

FIG. 1 illustrates an apparatus for decoding according to an embodiment. The apparatus comprises an interface for receiving a plurality of ATSC Link-layer Protocol packets each of which comprising a packet header and a packet payload encapsulating digital content. Moreover, the apparatus comprises a decoding unit. In a first embodiment, the digital content being encapsulated within the packet payload of each of one or more ATSC Link-layer Protocol packets of the plurality of ATSC Link-layer Protocol packets comprises digital radio content, and / or a Distribution and Communications Protocol packet or a portion thereof, and / or Unified Speech and Audio Coding content or extended High Efficiency Advanced Audio Coding content, and / or Journaline content. The decoding unit is configured to decode the packet payload of each one of at least one ATSC Link-layer Protocol packet of the one or more ATSC Link-layer Protocol packets to obtain the digital content of said one of the at least one ATSC Link-layer Protocol packet.

A media data processing method according to embodiments may comprise the steps of: generating media data; generating a service list for the media data; and transmitting the media data and the service list on the basis of a network. A media data processing method according to embodiments may comprise the steps of: receiving media data and a service list for the media data on the basis of a network; and processing the media data on the basis of the service list.

To provide a digital broadcast receiver capable of executing a function with a higher added value.SOLUTION: A broadcast receiving device 40100 includes a broadcast receiving unit capable of receiving broadcast data of a broadcast program content and location information describing a reference destination for acquiring data related to the broadcast data from a broadcast transmission path, a communication unit capable of receiving communication data of a program content from the reference destination described in the location information via a communication line, a recording and reproducing unit capable of recording and reproducing the broadcast data of the broadcast program content received by the broadcast receiving unit, an output unit that outputs the broadcast data of the broadcast program content reproduced from the recording and reproducing unit to an external device, and a server function unit having a server function for the external device. In the output state from the output unit, the location information in which the description of the reference destination is rewritten to the description indicating the server function unit is output together with the broadcast data reproduced from the recording and reproducing unit.SELECTED DRAWING: Figure 29A

The invention discloses a fire-fighting emergency broadcasting system capable of automatically broadcasting a fire alarm position, relates to the technical field of fire-fighting emergency, and is used for solving the problem that fire alarm information cannot be clearly spread when a fire disaster occurs. Comprising a fire alarm controller module, a broadcast conversion module, a broadcast power amplification module, an alarm control module and a data storage module which are in signal connection. The fire alarm controller module judges the occurrence and position of a fire and transmits fire alarm information to the broadcast conversion module. The broadcast conversion module generates an alarm statement containing position information, synthesizes a voice file and splices the voice file with an alarm sound effect to form an audio signal. The broadcast power amplifier module adaptively adjusts output power according to environmental noise, and supports regional loudspeaker control and automatic gain adjustment. And the alarm control module realizes alarm intelligent sorting and scheduling through event priorities. The data storage module records system operation and fire alarm information and supports analysis and maintenance. According to the invention, the real-time performance and reliability of the fire-fighting broadcasting system are improved.

A radio data receiving device includes a memory, and a processor operatively connected to the memory, wherein the processor is configured to receive a zeroth stream based on a first frequency band about a radio data system (RDS), receive a first stream based on a second frequency band in which the RDS is extended, receive a second stream based on a third frequency band in which the RDS is extended, receive a third stream based on a fourth frequency band in which the RDS is extended, and provide a service about RDS data based on at least one of the first stream, the second stream, or the third stream.

Wireless audio distribution technology for improved performance can include receiving, at a configurable software-defined hub, a pairing initiation signal to connect the hub with at least one node of one or more configurable software-defined nodes. The method can include receiving, from the at least one node, a plurality of node identifiers; authorizing the at least one node based on a comparison of the plurality of node identifiers and identifier data stored in the hub memory; securely pairing the configurable software-defined hub with at least one authorized node; configuring a software-defined transceiver chain comprising a configurable hub transmitter and an authorized node receiver with a modified Logical Link Control layer and an unmodified Media Access Control layer of an Open System Interconnect protocol, and communicating data in a predetermined format from the configurable hub transmitter to the authorized node receiver.

Provided is technology for more suitably transmitting or receiving an advanced digital broadcast service. Used as the means for doing so is a broadcast reception device that, together with a broadcast station device, constitutes a broadcast system, wherein: a broadcast wave data block transmitted using a broadcast wave and an online data block transmitted using a communication network, for both of which transmission from the broadcast station device has started at the same timing, and which each correspond to the same partial video content, are received; a long standby time is set which is longer than the longest time that is expected as the delay time from the start of transmission of the broadcast wave data block to the start of reception of the broadcast wave data block and which is longer than the longest time that is expected as the delay time from the start of transmission of the online data block to the start of reception of the online data block; and decoding of both data blocks for which reception has started is started at the timing when the standby time is elapsed from the start of the transmission of the broadcast wave data block and the online data block.

A digital tuner in a broadcasting receiving unit outputs audio data at a sample rate of Fs + dr (Hz), and an ASRC rate-converts audio data to audio data at a sample rate of Fs + ds (Hz) and transmits the resulting audio data to an audio processing unit. A DAC in the audio processing unit analog-converts the received audio data at an output rate of Fs + da (Hz) and outputs the resulting audio data to a speaker. The sample rate Fs + ds and the output rate Fs + da are synchronized with a SYNC transmitted from the broadcasting receiving unit to the audio processing unit on a 125 ms cycle. For the sample rate Fs + ds and the output rate Fs + da, a relationship of (da-ds) x 0.125 < 1 is assured.

To provide a transmission method and the like capable of guaranteeing a buffer operation of a reception device when transmitting data using an MMT system.SOLUTION: A transmission method for transmitting a plurality of transmission packets in a state where a specification by a reception buffer model is satisfied, the transmission packet including a variable-length packet header and a variable-length payload, the reception buffer model including a buffer configured to receive the transmission packet, convert a first packet configured by the variable-length packet header and the variable-length payload stored in the received transmission packet into a second packet having a fixed-length packet header subjected to header decompression, and output the second packet obtained by the conversion at a predetermined extraction rate, the plurality of transmission packets equal to or less than a predetermined number of packets are transmitted per unit time (S2301), and the predetermined number of packets is set so that the transmission packets of the minimum packet size do not continue.SELECTED DRAWING: Figure 86

Techniques are described for wirelessly receiving, at first and second speaker assemblies, signals representing left and right audio channels from each of first and second sources, and using the signals, simultaneously playing, on both speaker assemblies, music, computer game audio, computer chat audio, and speech picked up by speaker microphones.

To be capable of preferably performing a series of media access controls on a reception side.SOLUTION: A container of a predetermined format including a media stream is transmitted. A predetermined number of sets of media access information associated with a series of media access controls are successively inserted in a layer of the media stream or a layer of the container. For example, the media access information includes identification information for making a distinction between other media access information, and identification information for making an association with the other media access information.SELECTED DRAWING: Figure 16

A broadcast receiving apparatus includes: a tuner configured to receive a transmission wave in which identification information is stored in a carrier, the carrier being modulated differently from a data carrier, a frequency band when the transmission wave is transmitted in an air being able to be identified by the identification information; and a controller. The controller is configured to identify a frequency band when the transmission wave is transmitted in the air by using the identification information contained in transmission wave received by the tuner.

The present technology relates to a transmission device, a transmission method, a reception device, and a reception method with each of which it becomes possible to perform transmission of control information according to an operation form. The reception device receives first data that includes control information, which includes information necessary for channel selection of a service, and transmission sequence information indicating a sequence in which the control information is transmitted and that is transmitted in a transmission sequence corresponding to the transmission sequence information, and controls processing on second data, which includes data of a component included in the service, on the basis of the control information acquired according to the transmission sequence information. The present technology can be applied, for example, to a television receiver.