71results about "Broadcast-related systems" patented technology

Methods are generally described for inaudible orthogonal signal communication. An example method includes determining, based on an input message, a series of symbols, where each symbol from the series of symbols represents a numerical value, wherein each symbol from the series of symbols corresponds to a band-limited white noise tone orthogonal to each other band-limited white noise tone corresponding to each other symbol. The example method also includes generating a sub-token comprising each symbol from the series of symbols, where each symbol overlaps in time with at least one other symbol. The example method also includes modulating a carrier wave with the sub-token to produce a signal audio waveform, where the modulation uses a spread spectrum technique, and providing the signal audio waveform to a television device, where the television emits the signal audio waveform as a low-amplitude audio signal.

The invention relates to a wireless broadcast connection system and method and a method for automatically configuring an emergency alarm area. The system comprises a wireless broadcast receiving device and an intelligent terminal, the wireless broadcast receiving device is configured to be used for receiving broadcast signals and wirelessly transmitting broadcast audio streams to the intelligent terminal, and the wireless broadcast receiving device comprises a broadcast receiving processing unit, a wireless communication module and a digital signal processing unit. The digital signal processing unit is connected with the broadcast receiving and processing unit and the wireless communication module, and is used for encoding the digital audio signal into an audio stream in a compressed format and carrying out transmission buffer management on the audio stream; wherein the digital signal processing unit is provided with a self-adaptive transmission control module, and the self-adaptive transmission control module has a bidirectional communication capability and is used for receiving a playing buffer area state feedback signal from the intelligent terminal and dynamically adjusting the transmission rate of sending the compressed audio stream to the intelligent terminal according to the feedback signal; therefore, synchronous control of buffer areas of a sending end and a receiving end is realized.

This broadcast receiving device comprises: a third decoder unit that acquires, from a first video stream received in a basic layer, first content of a broadcast program for which protection by first protection information is defined, and acquires, from a second video stream received in a sub-layer, second content of a broadcast program for which protection by second protection information is defined; a storage unit that stores broadcast program information including the acquired first content and second content; and a main control unit that performs copy control of the broadcast program information on the basis of the first protection information and the second protection information. The first protection information is information defining a first condition related to copying of the first content, and the second protection information is information defining a second condition related to copying of the second content.

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.

To provide a digital broadcast receiver capable of executing higher value-added functions. [Solution] The device comprises a first broadcast receiving unit that receives broadcast waves of a first broadcast service, a first separation unit that separates encoded program video data and time control information from the received broadcast waves, a first video decoding unit that decodes the encoded program video data to reproduce program video information, a second broadcast receiving unit that receives broadcast waves of a second broadcast service, a second separation unit that separates encoded program video data and time control information from the received broadcast waves, a second video decoding unit that decodes the encoded program video data to reproduce program video information, a current time information generating unit that generates current time information based on either the first time control information or the second time control information, a presentation processing unit that can input the first program video information, the second program video information, and the current time information, perform appropriate selection processing and / or superimposition processing, and output as video information, a display unit that displays the video information, and a control unit.

To provide a transmitting method and related others, by which a receiving device can execute an application constituted of a prescribed data unit at an intended time.SOLUTION: There is provided a transmitting method that stores a data of an application in a predetermined data unit and transmits the stored data. The transmitting method further generates time designation information indicating an operation time of the application on the basis of reference time information received from an outside source, and transmits (i) the predetermined data unit and (ii) control information indicating the generated time designation information. Therein: the control information stores the generated time designation information, and identification information indicating whether or not the time designation information is time information before a leap second adjustment; the time designation information of a UTC and an NPT time; the control information is a UTC-NPT reference descriptor indicating a relation between the UTC time and the NPT time; and the reference time information is a Network Time Protocol (NTP).SELECTED DRAWING: Figure 92

To provide a content transmission device and a transmission method capable of using a character content without causing character garbling.SOLUTION: The content transmission device according to one embodiment comprises means which compares a second character coding system which can be corresponded by a client with information of a first character coding system to character data sent by broadcast, inputs coded content data including coded character data by the first character coding system when both of the systems match, and inputs character data within third coded content data obtained by converting the first character coding system to character data conversion means when both of the systems do not match.SELECTED DRAWING: Figure 3

The invention is entitled "Method and system for seamless media synchronization and switching." A method performed by a portable media player device is disclosed. The method receives a microphone signal that includes audio content output by an audio playback device via a loudspeaker. The method determines identifying information about the audio content, where the identifying information is determined through acoustic signal analysis of the microphone signal. In response to determining that the audio playback device has ceased outputting the audio content, the method retrieves an audio signal corresponding to the audio content from a local memory of the portable media player device or a remote device communicatively coupled thereto, and uses the audio signal to drive a speaker that is not part of the audio playback device to continue outputting the audio content and any additional audio content related to the audio content.

This technology provides a more optimal method for transmitting, receiving, recording, copying, and moving advanced digital broadcasting services. [Solution] The system includes: a receiving unit that receives broadcast waves with different broadcast service content related to the same broadcast program transmitted via simulcast from a broadcasting station; a storage unit that records content information of different broadcast service content related to the same broadcast program from the simulcast broadcast waves received by the receiving unit; and a control unit that sets copy count information as one of the attribute information for each of the simulcast content pieces stored in the storage unit, and decrements the copy count information of all the simulcast content pieces with different broadcast service content stored in the storage unit by 1 when any of the simulcast content pieces is copied to another storage unit.

A method is disclosed comprising receiving, at a hybrid radio receiver configured to recover audio content from a broadcast radio signal and from a wireless network connection separately, a reception metric indicative of an audio quality of the audio content in the broadcast radio signal at any given time. The method further comprises deriving, from fluctuations in the reception metric over time, a fluctuation indicator indicative of fluctuations in the audio quality likely to be noticed by a listener. The method further comprises deriving, based on a previous switching decision and the fluctuation indicator, a switching decision to use the broadcast radio signal or the wireless network connection as a source of the audio content to introduce a hysteresis into the switching decision, and selecting, based on the switching decision, the broadcast radio signal or the wireless network connection as the source of the audio content.

The present disclosure relates to an information processing device and an information processing method that make it possible to improve the quality of communication in a vehicle. A vehicle-mounted system determines a common keyword indicating a matter of concern common to a plurality of occupants in a vehicle, transmits the common keyword to a cloud system, and receives and reproduces a common content that is a content delivered from the cloud system on the basis of the common keyword and attribute data of the plurality of occupants. The cloud system generates a content search word on the basis of the common keyword and the attribute data of the plurality of occupants, searches a content data storage unit using the content search word, and delivers, as the common content, content data obtained as a result of the search to the vehicle-mounted system. The present technology can be applied to, for example, a content delivery system that delivers a content to a vehicle via a network.

To provide a broadcast signal receiving apparatus and a broadcast signal receiving method having a function of presenting the type of supported DRM.SOLUTION: The broadcast signal receiving apparatus according to the present embodiment acquires an application existing on a communication network and including application data added to a program on the basis of first information included in a control signal of a broadcast wave for broadcasting the program, and provides a type of security management information supported by security management information processing means to the application when the acquired application acquires content including at least a video to which the security management information is applied through communication.SELECTED DRAWING: Figure 1A

A wireless communication device and an image display apparatus including the same are disclosed. An image display according to an embodiment of the present disclosure comprises a display, a memory to store country code information, a signal processing device to output an image signal to the display, and a wireless communication device to perform wireless communication with an external device, wherein the wireless communication device is configured to scan a beacon frame, set wireless channel and wireless transmission power based on the country code information stored in the memory in response to a beacon frame being not received within a predetermined period, and in response to the beacon frame being received within the predetermined period, extract the country code information within the beacon frame and set wireless channel and wireless transmission power based on the extracted country code information. Accordingly, it is possible to efficiently perform wireless communication.

A radio apparatus for a vehicle and a control method thereof is provided. The radio apparatus and control method may provide an occupant of a vehicle, who cannot listen to an Internet radio, to be able to easily listen to radio broadcasts, even when a reception condition of an analog radio transmitted by a radio broadcasting station is poor. When a vehicle whose occupant can listen to the Internet radio is adjacent to a vehicle whose occupant cannot listen to the Internet radio, the Internet radio to which the vehicle whose occupant can listen, may be converted into an analog radio, and the analog radio is transmitted to the vehicle whose occupant cannot listen to the Internet radio by using one or moddre frequencies.

This utility model discloses a novel wireless transmitter source switching system, comprising a loop control module, a signal output module, a signal detection module, a working indicator module, and a signal input module. The signal output module, signal detection module, working indicator module, and signal input module are electrically connected to the loop control module. A power control module is electrically connected to each of the loop control module, signal output module, signal detection module, and working indicator module, and is powered by AC mains electricity. This utility model relates to the field of automatic source switching for wireless broadcast transmitters, specifically a novel wireless transmitter source switching system.

The objective is to provide a broadcast signal receiving device and a broadcast signal receiving method that have a function to indicate the types of DRM that are supported. [Solution] This embodiment is a broadcast signal receiving device in which, based on first information included in the control signal of a broadcast wave that broadcasts a program, an application consisting of application data attached to the program that exists in the broadcast wave, and when the acquired application acquires content to which security management information is applied, including at least video, by communication, the security management information processing means provides the application with the type of security management information that it supports.

To more surely recognize simultaneous broadcasting.SOLUTION: There is provided a transmission device including a transmission unit configured to transmit a broadcast stream including signaling information regarding a broadcast component configuring content, in which the signaling information includes a descriptor in which a service identifier or location information for identifying a service corresponding to simultaneous broadcast content among one or more services included in a transmission stream for transmitting the simultaneous broadcast content corresponding to the content is arranged, and the descriptor is included in broadcaster information regarding information of a broadcaster. The present disclosure can be applied to, for example, a transmission system corresponding to a broadcasting scheme of terrestrial digital television broadcasting.SELECTED DRAWING: Figure 4

To provide a technique for more appropriately transmitting, receiving, recording, copying and moving advanced digital broadcast services.SOLUTION: A broadcast receiving device comprises: a receiving unit for receiving broadcast waves which are transmitted from a broadcast station side by simultaneous broadcasting and of which the broadcast service contents relating to the same broadcast program are different; a storage unit for recording content information of the different broadcast service contents relating to the same broadcast program from the simultaneously broadcasted broadcast waves received in the receiving unit; and a control unit for setting copiable time information, as one of attribute information, to each of the simultaneously broadcasted content information stored in the storage unit and, regarding the copiable time information, decrementing the copiable time information of all the content information of the simultaneously broadcasted different broadcast service contents stored in the storage unit by one when any one of the simultaneously broadcasted content information is copied to the other storage unit.SELECTED DRAWING: Figure 2A

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, from a broadcast transmission path, broadcast data of a broadcast program content and location information in which a reference destination for acquiring data related to the broadcast data is described, a communication unit capable of receiving communication data of the broadcast 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, and an output unit that outputs the broadcast data of the broadcast program content reproduced from the recording and reproducing unit to an external device. The output state from the output unit includes a state in which the location information in which the description of the reference destination is rewritten to the description indicating the server function unit and the layout control information of the description in the state received by the broadcast receiving unit are output.SELECTED DRAWING: Figure 29A

A wireless communication device and an image display apparatus including the same are disclosed. An image display according to an embodiment of the present disclosure comprises a display, a memory to store country code information, a signal processing device to output an image signal to the display, and a wireless communication device to perform wireless communication with an external device, wherein the wireless communication device is configured to scan a beacon frame, set wireless channel and wireless transmission power based on the country code information stored in the memory in response to a beacon frame being not received within a predetermined period, and in response to the beacon frame being received within the predetermined period, extract the country code information within the beacon frame and set wireless channel and wireless transmission power based on the extracted country code information. Accordingly, it is possible to efficiently perform wireless communication.

This electronic device may comprise a communication circuit, one or more processors, and a memory for storing instructions. The instructions, when executed by the one or more processors, may instruct the electronic device to: receive synchronization information related to reception of a BIS service from a source electronic device; transmit the synchronization information to an external electronic device such that the external electronic device receives audio data broadcasted from the source electronic device; receive first audio data for the BIS service broadcasted from the source electronic device; on the basis of identifying that the first audio data is expressed in a first language and that the first language is different from a designated second language, translate the first audio data into second audio data expressed in the second language; and transmit the second audio data to the external electronic device such that the external electronic device outputs the second audio data.

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, from a broadcast transmission path, broadcast data of a broadcast program content and location information in which a reference destination for acquiring data related to the broadcast data is described, a communication unit capable of receiving communication data of the broadcast 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, and an output unit that outputs the broadcast data of the broadcast program content reproduced from the recording and reproducing unit to an external device. The output state from the output unit includes a state in which the location information in which the description of the reference destination is rewritten to the description indicating the server function unit and the layout control information of the description in the state received by the broadcast receiving unit are output.SELECTED DRAWING: Figure 29A

To provide a technique for enhancing protection of content.SOLUTION: The broadcast receiving device 100 includes a third decoder 140M that acquires first content of a broadcast program protected by first protection information from a first video stream received in a base layer and acquires second content of the broadcast program protected by second protection information from a second video stream received in a sub-layer, a storage unit 110 that stores broadcast program information including the acquired first content and second content, and a main control unit 101 that performs copy control of the broadcast program information based on the first protection information and the second protection information. The first protection information defines a first condition for copying the first content, and the second protection information defines a second condition for copying the second content.SELECTED DRAWING: Figure 36

Systems, apparatuses, computer-readable media, and methods are described for sending and receiving a plurality of content streams including audio, video, or audio-video content and one or more command streams. The command streams may include premises automation commands associated with performing one or more functions at a premises. The commands may, for example, instruct a lighting system to turn on / off lights, a security system to enter an arm or disarm operational state, a thermostat to adjust its temperature, etc. One or more user preferences may be set to control which function is performed when a user makes a selection that causes a particular command stream to be processed. Also, different users may have different user preferences to cause different functions to be performed.

In a broadcasting system using a hierarchical transmission method, scrambled signals are generated with a simple configuration. [Solution] The broadcast scrambling device is a broadcast scrambling device that encrypts content transmitted according to a hierarchical transmission method, and comprises a receiving unit that receives an unscrambled signal including the content, a scrambling unit that generates a scrambled signal in which the content transmitted at a weak hierarchical level is encrypted by performing scrambling processing on the unscrambled signal received by the receiving unit, and a transmitting unit that transmits the scrambled signal generated by the scrambling unit.

The application relates to the technical field of digital communication, and discloses a multi-terminal live broadcast interaction data transmission method and system based on frequency modulation relay, which comprises the following steps: acquiring multi-terminal live broadcast interaction data under frequency modulation relay, extracting delay tolerance characteristics of different data types and constructing a transmission resource allocation matrix; performing repeated data detection on the multi-terminal live broadcast interaction data, combining network delay compensation to establish a time sequence distribution mode of repeated data, generating a check reference sequence; embedding the check reference sequence into a data stream coded according to the transmission resource allocation matrix and the multi-terminal live broadcast interaction data, forming a composite transmission data stream, and performing frequency modulation on the composite transmission data stream to generate a frequency modulation transmission signal; extracting the check reference sequence from the frequency modulation transmission signal at a receiving end, comparing and analyzing the actual distribution of received repeated data, and adjusting the transmission resource allocation matrix according to the comparison result. The application provides data transmission guarantee for the conversion of network data into a frequency modulation broadcast signal.

The invention discloses a zero-second off-broadcasting switching control system for a transmitter. The system comprises a power phase controller, an in-phase power combiner, a radio frequency switching coaxial switch, a power meter, an absorption load and an intelligent controller. In a system normal state, two power amplifiers are used for synthesizing output, and the third power amplifier is used for hot backup. When any one of the main power amplifiers fails, the power of the system drops to 25% (not lower than 25% of a shutdown threshold), the controller immediately controls the normal power amplifier to quickly increase the power to 100% of the rated power of the system, so that the output power of the system is increased to 50% of the rated power of the system, the radio frequency switch network isolates the failed power amplifier and switches into the hot backup power amplifier, and then the power of the two power amplifiers is adjusted to 50% of the power of the system. And the total power is recovered to 100% of the rated system, and zero-second switching is realized. According to the invention, through the power redundancy architecture and the intelligent switching logic, the problems that the traditional switching mode is long in interruption time and easy to stop broadcasting are solved, and the broadcasting safety is greatly improved.

To satisfactorily realize a hybrid service of broadcasting and communication.SOLUTION: A transmission stream is generated by multiplexing a first transmission packet including a predetermined component and a second transmission packet including information about the predetermined component in a time-division manner. The transmission stream is transmitted through a predetermined transmission path. Acquisition information of a component of the communication path including at least location information and protocol identification information is inserted into the second transmission packet. The reception side can satisfactorily receive the transmission stream having the transmission packet including the component of the communication path on the basis of the acquired information. For example, the acquisition information further includes packet identification information. In this case, even if a plurality of transmission packets are multiplexed in the transmission stream, a desired transmission packet can be selectively acquired based on the packet identification information.SELECTED DRAWING: Figure 6