261results about "Broadcast-related systems" patented technology

A system and method for providing reliable, legally compliant access to geographically restricted ATSC television signals via user-owned devices hosted in a datacenter. The invention verifies the physical address of each applicant to ensure eligibility within the designated market area before installation. It eliminates the need for rooftop or indoor antennas, resolving common ATSC reception challenges, including interference, terrain obstruction, and lightning risks. Designed for ease of use by non-technical users, the system provides consistent high-quality reception through a managed datacenter infrastructure. The invention complies with legal boundaries set by the U.S. Supreme Court's ruling in ABC v. Aereo by ensuring individualized device ownership and avoiding centralized retransmission. An optional encrypted group addressing mode further reduces energy and hardware redundancy while enforcing regional access through a conditional access system with access limited to persons with validated addresses and members of the datacenter.

To provide a technique for transmitting or receiving an advanced digital broadcast service more suitably.SOLUTION: A broadcast receiver includes: a tuner for receiving a transmission wave in which identification information capable of identifying a frequency band when a transmission wave is transmitted in the air is stored in a carrier modulated differently from a data carrier; and a control section. The control section identifies a frequency band when the transmission wave is transmitted in the air, using the identification information included in a transmission wave received by the tuner.SELECTED DRAWING: Figure 2A

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.

To provide a digital broadcast receiver capable of executing a function with a higher added value.SOLUTION: In a broadcast receiving device 100, in a case where a broadcast program reserved for recording is stored in an EPG screen, when content is designated to be protected, broadcast program content is stored in an encrypted state so as to be reproducible only by the broadcast receiving device. Storage of the broadcast program content in a storage unit, an output of the broadcast program content to an external apparatus, and a move of the broadcast program content to the external apparatus can be performed via an IP interface. The output to the external apparatus can be performed by an HDMI in addition to the output performed by the IP interface.SELECTED DRAWING: Figure 8A

Provide a more user-friendly content selection environment for the user. 【Solution means】The content information acquisition unit 100 acquires the content information transmitted from the distribution management server 4 via the communication unit 19. The receiving device information acquisition unit 102 acquires the receiving device information transmitted from the receiving device 3 via the communication unit 19. The receiving device information analysis unit 104 analyzes the receiving device information acquired by the receiving device information acquisition unit 102. The display mode determination unit 106 determines the mode of the display screen to be presented to the target user based on the result of the analysis in the receiving device information analysis unit 104. The display information management unit 108 transmits the display information necessary to display the display screen in the mode of the display screen determined by the display mode determination unit 106 to the receiving device 3 or the distribution management server 4 on a display unit (not shown) of the receiving device 3.

To solve a problem in which tasks such as creating a user account are required, and convenience and security of user ID settings are issues in order to receive and view video content via Internet distribution.SOLUTION: A video distribution system according to the present invention includes a television receiver capable of receiving video and audio content transmitted via broadcast waves and communications, and transmitting a card number or similar broadcast information used when receiving broadcast waves to an intermediate server, and a broadcasting system that transmits a broadcast program using the broadcast information, a video and audio content distribution system that receives the broadcast information and sends the broadcast information to the intermediate server, and combines a terminal ID and a distribution side ID when the intermediate server compares the broadcast information sent from the television receiver with the broadcast information sent from the distribution system.SELECTED DRAWING: Figure 1

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.

To provide a broadcast signal receiving device having a function for presenting supported DRM types, and a broadcast signal receiving method.SOLUTION: A broadcast signal receiving device in this embodiment acquires an application comprising application data provided to a program existing in broadcast waves based on first information included in control signals of broadcast waves for broadcasting the program. When the acquired application acquires contents, to which security management information including at least a video is applied, by communication, security management information processing means provides a type of the supported security management information to the application.SELECTED DRAWING: Figure 1A

To provide a digital broadcasting receiver capable of performing functions with higher added value.SOLUTION: A broadcast receiver 100 performs a determination process of an output status of contents from an interface in accordance with whether it is possible to receive control information indicating a copy control state for contents to be received with contents at a receiving unit, control information specifying whether protection is required for the content, control information specifying a combination of the resolution of a video of contents when output from an interface and transmission characteristics of the video of the contents when output from the interface and whether protection is required or not. If the receiving unit cannot receive control information that specifies whether protection is required for the contents or not, the control unit determines that the control information specifying whether protection is required for the contents indicates that protection is unnecessary and performs a determination process.SELECTED DRAWING: Figure 7A

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.

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

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 provide a transmitting method which enables a receiving device to execute, at an intended time, an application including predetermined data units.SOLUTION: A transmitting method for storing data of an application in a predetermined data unit and transmitting the data includes: generating time specification information indicating an operation time of the application, based on reference time information received from an external source; and transmitting (i) the predetermined data unit and (ii) control information indicating the generated time specification information. The control information includes the generated time specification information and identification information indicating whether or not the time specification information is time information indicating a time that is before a leap second adjustment. The time specification information of the predetermined data unit is generated by adding a predetermined period of time to the time information. The time specification information is a UTC time and an NPT. The control information is a UTC-NPT reference descriptor indicating a relationship between the UTC time and the NPT.SELECTED DRAWING: Figure 92

To provide a content transmitter and a transmission method capable of using character content without causing character garble.SOLUTION: A content transmitter according to an embodiment comprises coded content data input / output means, using first coded content data obtained by coding content data including at least character data to be transmitted on a broadcast signal and first content accompanying information as input, and second coded content data obtained by coding the content data, and second content accompanying information as output, accumulates the first coded content data and the first content accompanying information, and outputs the accumulated first coded content data and the first content accompanying information as the second coded content data and the second content accompanying information. The broadcast signal is broadcasted in MPEG2 transport stream system.SELECTED DRAWING: Figure 3

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

To provide a technique for more appropriately transmitting or receiving a high-level digital broadcast service.SOLUTION: A reception switching method in a broadcast receiving device which receives digital broadcasting includes: a reception step of receiving digital broadcasting; an event relay determination step of performing determination processing regarding the presence / absence of an event relay on the basis of information stored in an EIT included in the digital broadcasting received in the reception step; an inquiry screen display step of displaying an inquiry screen for inquiring whether to switch to and view a program of an event relay destination if an event relay occurs in a program being viewed in a case where it is determined that there is an event relay on the basis of the EIT; an inquiry screen erasure step of erasing the display of the inquiry screen; and a reception switching step of starting reception of the program of the event relay destination after starting broadcasting of an event of the event relay destination, and switching the program to be received.SELECTED DRAWING: Figure 58

In some examples, a first device receives a stream of application audio data, encodes the stream of application audio data, and in response to detecting an end of the stream of application audio data, provides pre-encoded filler audio data from a buffer in the first device as an encoded stream of filler audio data. The first device transmits the encoded stream of application audio data and the encoded stream of filler audio data in an encoded output data stream over a transport to a second device.

To provide a content transmission device and a transmission method that enable use of a character content without garbling.SOLUTION: A content transmission device according to one embodiment inputs first encoded content data and first content associated information obtained by encoding content data including at least character data obtained by processing a broadcast signal broadcasted using an MPEG2 transport stream method, outputs the first encoded content data and the first content associated information as second encoded content data and second content associated information obtained by encoding the content data, analyzes the second content associated information to extract information on the character encoding method used in the second encoded content data, and transmits the second encoded content data and the information on the character encoding method to the outside.SELECTED DRAWING: Figure 3

To provide a technique for more preferably transmitting or receiving an advanced digital broadcasting service.SOLUTION: A digital broadcast reception system includes an intermediate facility and a broadcast receiver. The intermediate facility comprises: a reception unit for receiving a plurality of different transmission waves in a plurality of different polarization directions using the same frequency; a frequency conversion unit for performing frequency conversion so that frequencies of the plurality of different transmission waves do not overlap with each other to generate a plurality of transmission waves having different frequencies; a mixture unit for mixing the transmission waves having different frequencies to generate a mixture transmission wave; and a splitting unit for splitting the mixture transmission wave to output a plurality of different transmission waves having different frequencies. The digital broadcast receiver comprises: a reception unit for receiving the plurality of different transmission waves having different frequencies; a communication unit; and a control unit. The control unit is configured to perform control so that control information for switching a transmission wave to be a target of frequency conversion processing or control information for switching a frequency of a converted transmission wave is output from the communication unit to the frequency conversion unit of the intermediate facility.SELECTED DRAWING: Figure 22

To provide a digital broadcasting receiver capable of performing functions with higher added value.SOLUTION: A broadcast receiver 100 performs a determination process of an output status of contents from an interface in accordance with whether it is possible to receive control information indicating a copy control state for contents to be received with contents at a receiving unit, control information specifying whether protection is required for the content, control information specifying a combination of the resolution of a video of contents when output from an interface and transmission characteristics of the video of the contents when output from the interface and whether protection is required or not. If the receiving unit cannot receive control information that specifies whether protection is required for the contents or not, the control unit determines that the control information specifying whether protection is required for the contents indicates that protection is unnecessary and performs a determination process.SELECTED DRAWING: Figure 7A

To provide a broadcast receiver which can execute a function with a higher added value.SOLUTION: A broadcast receiver comprises: a digital broadcast reception unit; a network communication unit; and a data string conversion processing unit which can generate a new data string by mixing a data string of content received by the digital broadcast reception unit and a data string acquired by the network communication unit. The broadcast receiver can acquire performance information of an external device via a digital interface that can communicate with the external device, and according to the performance information of the external device, switches between outputting from the digital interface of the new data string generated by mixing the data string of the content received by the digital broadcast reception unit and the data string acquired by the network communication unit by the data string conversion processing unit and outputting from the digital interface of the data string in a state where the mixture processing is not performed when outputting the received content to the external device from the digital interface.SELECTED DRAWING: Figure 29A

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 transmitting method of storing data configuring an application into a predetermined data unit and transmitting the stored data in the predetermined data unit, which includes: generating time specification information indicating an operation time of the application, based on reference time information received from an external source; and transmitting (i) the predetermined data unit and (ii) control information indicating the generated time specification information, wherein the control information includes the generated time specification information and identification information indicating whether or not the time specification information is time information indicating a time that is before a leap second adjustment.

To provide a technique of suitably transmitting or receiving a sophisticated digital broadcast service.SOLUTION: A system comprises: a tuner which receives a transmission wave storing information on an injection level; and a control unit. The control unit identifies that re-scanning processing that is setting processing of broadcast reception by the tuner is required, by using the information on the injection level included in the transmission wave received by the tuner.SELECTED DRAWING: Figure 2A

To provide a technique for more preferably transmitting or receiving an advanced digital broadcasting service.SOLUTION: A broadcast receiving device that receives a broadcast wave transmitted by a 2K broadcast service and a 4K broadcast service determines whether simulcast of the 2K broadcast service and the 4K broadcast service is performed in the broadcast waves on the basis of control information included in the received broadcast wave. When an EPG screen for the 2K broadcast service and the 4K broadcast service included in the broadcast wave is displayed, the display state of program information of the 2K broadcast service or the 4K broadcast service on the EPG screen is changed. The identification state in the identification includes a first identification state that identifies that the 4K broadcast service and the 2K broadcast service is a simulcast pair, and a second identification state that identifies that the 4K broadcast service and the 2K broadcast service is not in the simulcast pair.SELECTED DRAWING: Figure 13C

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 technique for more preferably transmitting or receiving an advanced digital broadcasting service.SOLUTION: A broadcast receiving device that receives a broadcast wave transmitted by a 2K broadcast service and a 4K broadcast service determines whether simulcast of the 2K broadcast service and the 4K broadcast service is performed in the broadcast waves on the basis of control information included in the received broadcast wave. When an EPG screen for the 2K broadcast service and the 4K broadcast service included in the broadcast wave is displayed, the display state of program information of the 2K broadcast service or the 4K broadcast service on the EPG screen is changed. The identification state in the identification includes a first identification state that identifies that the 4K broadcast service and the 2K broadcast service is a simulcast pair, and a second identification state that identifies that the 4K broadcast service and the 2K broadcast service is not in the simulcast pair.SELECTED DRAWING: Figure 13C

A system includes a plurality of computer devices connected to a network. The computer devices are operable by a plurality of users. The system further includes a server connected to the network. The server is to communicate data with the plurality of computer devices. The system further includes a bridge device connected to the network. The bridge device is to receive connection requests from the plurality of computer devices via the network. The bridge device is further to receive connection requests from the server via the network. The bridge device is further to mediate data communications between the plurality of computer devices and the server by communicating data through open connections made based on connection requests received from the plurality of computer devices and the server.

A method performed by a portable media player device. The method receives a microphone signal that includes audio content output by an audio playback device via a loudspeaker. The method determines identification information regarding the audio content, wherein the identification information is determined through an 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 from local memory of the portable media player device or a remote device with which the portable media player device is communicatively coupled, an audio signal that corresponds to the audio content and drives a speaker that is not part of the audio playback device using the audio signal to continue outputting the audio content and any additional audio content related to the audio content.

To provide a digital broadcast receiver capable of executing functions with a higher added value.SOLUTION: A digital broadcast receiving device 100 includes: a broadcast receiving unit that receives broadcast data including encoded video data and control information of a digital broadcast program; a video decoding unit that decodes the encoded video data to reproduce program video information; a display unit that displays the program video information; a communication unit that transmits viewing permission request data to a prescribed mobile information terminal and receives response data from the mobile information terminal when a broadcast program that a user of the broadcast receiving device wishes to view is a viewing-restricted program; an authentication information storage unit that stores terminal identification information and authentication information capable of identifying the prescribed mobile information terminal; and a control unit. When the response data is a display permission response and both terminal identification information and authentication information included in the display permission response match the stored terminal identification information and authentication information, respectively, the control unit controls the video decoding unit or the display unit so as not to restrict viewing of the broadcast program.SELECTED DRAWING: Figure 8A