115 results about "Digital broadcasting" patented technology

To provide a digital broadcast receiver capable of executing a function with higher added value. 【Solution means】A broadcast receiving apparatus capable of receiving video data of a digital broadcast program transmitted in each of a first media transport method and a second media transport method, which are at least two media transport methods having different time systems, the apparatus comprising: a first receiving unit that receives program video data transmitted in the first media transport method; a second receiving unit that receives program video data transmitted in the second media transport method; and a video information generation unit that generates output video information by synthesizing the program video data of the two media transport methods based on different time systems after synchronizing the presentation of the program video data in the two media transport methods based on different time systems by using the correspondence relationship of the notations in each time system regarding the presentation times of the program video data in the two media transport methods based on different time systems; and a display unit that displays the output video information.

The invention relates to the technical field of digital radio and television engineering, and discloses a signal receiving device for digital radio and television engineering, which comprises a fixed chassis and a paraboloid pot body, the top of the fixed chassis is provided with a bracket, the top of the bracket is provided with a tray, the paraboloid pot body is fixedly connected to the surface of the tray, and the paraboloid pot body is fixedly connected to the surface of the tray. The surface of the tray and the surface of the paraboloid pot body are fixedly connected with feed source supporting rods, the other ends of the feed source supporting rods are fixedly connected with a feed source body, the surface of the feed source body is fixedly connected with a tuner, a vertical adjusting assembly is arranged between the support and the tray, and a rotary adjusting assembly is arranged between the fixed chassis and the support. A connecting assembly is arranged on the surface of the tray. Through the cooperative use of the vertical adjusting assembly and the rotary adjusting assembly, the problem that the angle of the signal receiving pot is inconvenient to adjust when the digital signal is searched by the existing signal receiving device is solved.

Previously, users could not be notified when the 3D mode type of a program being received by a digital broadcast receiver was not compatible with the digital broadcast receiver. A reception device is provided with: a reception unit which receives program content including video information and identification information including information for distinguishing whether the program content is 2D program content or 3D program content; and a display control unit which controls the display so as to display whether the aforementioned program content is 2D program content or 3D program content in response to the received aforementioned identification information.

The invention discloses a radio frequency index monitoring method for a terrestrial digital broadcast signal, and particularly relates to the technical field of broadcast televisions, radio frequency index data of the terrestrial digital broadcast signal are collected, the collected radio frequency index data are preprocessed, radio frequency index characteristics are extracted based on the preprocessed radio frequency index data, and the radio frequency index characteristics are analyzed to obtain a radio frequency index monitoring result. A multi-modal artificial intelligence anomaly detection model is constructed and trained, the model can fuse and process different types of radio frequency index features, the normal mode of radio frequency indexes is learned through historical data, anomaly is recognized through reconstruction errors, the extracted radio frequency index features are input into the trained multi-modal artificial intelligence anomaly detection model, and the anomaly is detected. Judging whether the current radio frequency index state is abnormal or not; and when the judgment result is abnormal, classifying according to an abnormal mode, triggering an early warning mechanism based on an abnormal detection result, sending an alarm notification to operation and maintenance personnel through a short message, an email and an operation and maintenance platform, preliminarily positioning a fault source and providing a diagnosis suggestion.

To provide a technology for more appropriately transmitting or receiving advanced digital broadcasting service.SOLUTION: One or a plurality of reception units perform a frequency scan on a received broadcast wave to detect 2K broadcast service transmitting a 2K broadcast program and use information on the detected 2K broadcast service to creates a service list of the 2K broadcast service. After detecting the 2K broadcast service, the one or the plurality of reception units perform a frequency scan on the broadcast wave to detect 4K broadcast service transmitting a 4K broadcast program and use information on the detected 4K broadcast service to creates a service list of the 4K broadcast service. A memory stores a service list obtained by synthesizing the created service list of the 2K broadcast service and the created service list of the 4K broadcast service.SELECTED DRAWING: Figure 2A

A method comprising: at an importer of an IBOC digital radio broadcasting system: establishing a data link to an audio client configured to buffer audio from an audio source over a buffering duration, to produce buffered audio; receiving, from the audio client, an indication of the buffering duration; identifying a logical channel of an IBOC waveform assigned to the audio client and configured to transmit PDUs of the audio at a PDU rate; computing a quantized number of PDUs that is greater than one into which the buffered audio is to be divided at the audio client based on the buffering duration and the PDU rate; sending, to the audio client, an indication of the quantized number of the PDUs; and upon sending importer data requests to the audio client over the data link, receiving, from the audio client, client data responses each including the quantized number of the PDUs.

This invention provides technology for more effectively transmitting or receiving advanced digital broadcasting services. [Solution] The system includes a signal generation process that generates TMCC signals and AC signals to store transmission parameters, and an OFDM frame configuration process that configures an OFDM frame containing the TMCC signals and AC signals on a predetermined carrier. The signal generation process allows for the selection of a storage format for storing the transmission parameters. The signal generation process selects the storage format based on the FFT size or OFDM carrier interval. The signal generation process generates the TMCC signals and AC signals by applying the selected storage format. The OFDM frame configuration process configures an OFDM frame containing the generated TMCC signals and AC signals.

The invention discloses a high-reliability digital broadcasting system and an abnormal fast continuous broadcasting method, and relates to the technical field of communication technology and emergency broadcasting, and the high-reliability digital broadcasting system comprises a server A, a server B, broadcasting terminal equipment and a server abnormity recovery module, the server A is provided with two redis sentry nodes, and the server B is provided with one redis sentry node; the server exception recovery module is used for switching the broadcast and quickly continuing the broadcast when the server is exceptional; when a server is started, a redis monitoring sub-process is started, and the redis monitoring sub-process performs fault transfer and master and slave node adjustment according to a local state when a master node is offline by checking the local state, the master node state and redis sentinel node information. According to the invention, when the server is abnormal, the broadcast task which is being executed can be continuously executed within one second, so that the continuous playing efficiency is greatly improved; according to the method, the redis sentry cluster is deployed by using the two servers, so that the number of the servers can be reduced, and the cost is effectively reduced.

A broadcast receiving includes a broadcast receiver that receives a broadcast wave of a digital broadcasting service; a separator that separates coded program video data, program-cooperation data, and screen layout control information, from the broadcast wave; a video decoder that decodes the coded program video data to reproduce program video information; a cooperation information generator that interprets the program-cooperation data to generate program-cooperation information; and a control unit that, when an instruction to display a given screen is input while the presentation processor divides video display region into sub-regions based on the screen layout control information, places the program video information in one of the sub-regions, places the program-cooperation information in another sub-region, and outputs the data of the video display region as the video information, outputs information of the given screen as the video information without dividing the video display region based on the screen layout control information.

To avoid overflow and underflow of a modulator input buffer for a terrestrial digital broadcast and a next-generation terrestrial broadcast and to reproduce and provide a modulator clock for slave synchronization of each broadcast program signal.SOLUTION: A STL / TTL modulator (100) in a system for multiplexing a plurality of broadcast program signals with counter values added thereto by STL / TTL and transmitting the multiplexed signals includes counter sections (14, 17) for counting clocks synchronized with a modulation clock of the STL / TTL and a plurality of counter value adding sections (151-15N, 181-18M) for adding the counter values supplied from the counter sections (14, 17) to the packets to generate broadcast program signals with counter values at timing when the packets of the plurality of broadcast program signals arrive.SELECTED DRAWING: Figure 3A

A broadcast reception device receives a digital broadcast service capable of executing an application cooperating with a broadcast program, and is provided with: a broadcast reception unit which receives broadcast waves of the digital broadcast service; a separation unit which separates video information relating to the broadcast program and application-related information from the received broadcast waves; a broadcast video decoding unit which decodes the video information relating to the broadcast program; an application acquisition unit which acquires an application on the basis of location information included in the application-related information; an application execution unit which executes the acquired application and acquires additional data from a server device; a video conversion unit which converts broadcast program video decoded by the broadcast decoding unit into high-quality video having a higher quality than the video using the acquired additional data; and a display unit which is able to display the high-quality video.

A computer-implemented system for group purchase of access to information. A seller uploads a product, specifies a total price, and defines product units. Buyers purchase one or more product units, and when all units are sold, the system provides an access key to the product. The system manages dynamic pricing, secondary markets, incentives, subscriptions, and multiple payment methods. Products support diverse formats and delivery across digital, broadcast, and physical channels. The platform includes buyer protections, seller tools, end-to-end payment handling, and third-party integrations.

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

The present application relates to the field of information management technology, and provides a safety emergency information management method, system, and electronic device. The method includes a monitoring center sending a digital broadcast signal to a second transmitting end through a first transmitting end; after receiving the digital broadcast signal, the second transmitting end extracts a data interaction control instruction and converts the data interaction control instruction into a first sound wave signal of a preset frequency for transmission; after collecting a target sound wave signal within a preset frequency range, the user terminal decodes the target sound wave signal to obtain a data interaction control instruction, and sends emergency response data to the monitoring center according to the data interaction control instruction, wherein the emergency response data includes user status information determined based on the safety fence carried in the data interaction control instruction. Based on this, the monitoring center can realize data interaction with the user terminal with the help of the digital broadcast system, thereby effectively obtaining personnel information in the dangerous area.

The present invention provides a digital broadcast receiver capable of executing functions having higher added values. The broadcast receiver receives a broadcast wave of a digital broadcast service, controls an operation including activation and end of an application that is in cooperation with a broadcast program based on application-related information, and selects control relating to reactivation of the application based on a user's operation. If activation of the application is requested after the end of the application, the broadcast receiver controls the reactivation or non-reactivation of the application in accordance with the selection of control by the user.

This invention discloses an algorithm and system for audio and virtual scene synchronization adaptation in digital broadcasting, belonging to the field of virtual digital broadcasting technology. The method includes acquiring video stream data and audio stream data, identifying camera switching frames, and determining the switching type; acquiring the rendering load data of the current virtual scene to calculate the load coefficient, predicting the delay duration of the camera switching frame based on the switching type, and calculating the compensation time of the audio stream data by using the predicted delay duration and load coefficient; acquiring the historical coordinate data and current action characteristics of the virtual character, determining whether the coordinates are lagging or actually displaced, and adjusting the spatial distance attenuation coefficient of the audio stream data based on the determination result; acquiring the camera's pitch angle change data and adjusting the sound image height offset of the audio stream data; and using the compensation time, spatial distance attenuation coefficient, and sound image height offset as setting parameters for the audio stream data. This invention ensures audiovisual synchronization through adjustments in three directions: time, spatial distance, and sound image height.

To provide a digital broadcast receiver capable of executing functions with higher added value.SOLUTION: A broadcast receiving device capable of receiving a digital broadcast service that can execute an application in cooperation with a broadcast program includes: a broadcast receiving unit that receives a broadcast wave of the digital broadcast service; a separation unit that separates at least a video of the broadcast program and application-related information from the received broadcast wave; a broadcast video reproduction unit that reproduces the video of the broadcast program; a terminal cooperation control unit that controls cooperative operation with a mobile information terminal; an application acquisition unit that acquires a predetermined application based on location information acquired by referring to the application-related information; an application execution unit that executes the acquired predetermined application and outputs an application execution video; and a display unit that can display the video of the broadcast program or the application execution video. The terminal cooperation application performs determination processing for determining whether cooperation with the mobile information terminal is possible.SELECTED DRAWING: Figure 2A

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

A broadcast receiving device capable of receiving digital broadcast services from a broadcast system employing a specified media transmission method, extracts at least coded program image data, program coordination data, and screen layout control information related to the broadcast program from the received broadcast wave of the digital broadcast service; decodes the coded program image data; parses the program coordination data to generate program coordination information; appropriately divides the image display area according to the screen layout control information; appropriately configures the program image information and program coordination information in the divided areas and outputs them. Control is implemented such that when program image information is configured in one area divided based on the screen layout control information and program coordination information is configured and output in other areas, when a user inputs a command to display a specified screen, the information of the specified screen is output as image information without dividing the image display area based on the screen layout control information.

The present invention provides a digital broadcasting receiving device, a configuration method, and a transmission method for more effectively transmitting or receiving advanced digital broadcasting services. [Solution] In the broadcasting system, the broadcast receiving device 100 comprises one or more receiving units that receive broadcast waves of digital broadcasts, including 2K and 4K broadcast programs, transmitted simulcast from the broadcasting station, a control unit, and a remote controller. One or more receiving units perform a frequency scan on the received broadcast waves to detect multiple 2K and 4K broadcasting services that transmit 2K and 4K broadcast programs. The control unit performs a first mapping process to determine the correspondence between multiple tuning buttons on the remote controllers of each of the detected multiple 2K and 4K broadcasting services, based on the remote control IDs for the 2K and 4K broadcasting services included in the broadcast waves.

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 technology for more suitably transmitting or receiving advanced digital broadcasting services.SOLUTION: A system is configured to transmit a composite wave obtained by combining an upper hierarchical modulated wave and a lower hierarchical modulated wave with different transmission powers in the same frequency band, change the difference in transmission power between the upper hierarchical modulated wave and the lower hierarchical modulated wave, and include information about the difference in transmission power in either the upper hierarchical modulated wave or the lower hierarchical modulated wave before transmitting.SELECTED DRAWING: Figure 2A

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

To provide a digital broadcast receiver capable of performing a higher value-added function.SOLUTION: Used is a broadcast receiver capable of receiving broadcast data including at least program content and luminance-related information on luminance of the program content, the broadcast receiver comprising: a broadcast reception unit that receives the broadcast data; a storage unit that stores luminance property information on luminance capable of being handled by a display unit included in the broadcast receiver; a luminance conversion processing unit that, on the basis of the luminance-related information received by the broadcast reception unit and the luminance property information read from the storage unit, performs luminance conversion on the program content received by the broadcast reception unit; and a display control unit that controls display of the program content on which luminance conversion processing has been performed by the luminance conversion processing unit, on the display unit.SELECTED DRAWING: Figure 7A

To provide a digital broadcast receiver capable of executing a function with higher added value.SOLUTION: A broadcast receiving device receives broadcast waves of a digital broadcast service, controls operations including starting and ending applications on the basis of application control information, and selects control related to operations including starting and ending multiple types of applications on the basis of a user operation. When a request is made to start a second application (broadcast managed application) while a first application (non-broadcast application or general application) is being executed, the broadcast receiving device controls at least one of ending or continuing the first application and starting or not starting the second application according to the control selection by the user.SELECTED DRAWING: Figure 28

To provide a technique for more suitably transmitting or receiving an advanced digital broadcasting service.SOLUTION: A method includes a transmission step of transmitting a first transmission wave in a first polarization direction and transmitting a second transmission wave in a second polarization direction different from the first polarization direction, a reception step of receiving the first transmission wave and the second transmission wave, and a layer identification step of identifying the layers included in the first transmission wave and the second transmission wave. In each of the first transmission wave and the second transmission wave, a predetermined bandwidth is divided into a predetermined number of segments, and in the layer identification step, a segment group having the same segment number as the segment belonging to the predetermined layer transmitted by the first transmission wave in the first polarization direction from among the segments transmitted by the second transmission wave in the second polarization direction is configured such that identification information that can be identified as a layer different from the predetermined layer is stored in the second transmission wave.SELECTED DRAWING: Figure 2A

To provide a broadcast receiving device capable of performing functions with higher added value. [Solution] The system comprises a receiving unit that receives a digital broadcast signal including a first data flow, a communication unit 121 that acquires a second data flow associated with the first data flow from a server device via a communication line, a video decoding unit 141 that can decode video data included in the first data flow and / or video data included in the second data flow to generate decoded video data, and a digital interface 40125 that can output video to an external device and acquire performance information of the external device. The video output control state by the digital interface has an output control state that outputs only the decoded video of the video data of the first data flow, and a second output control state that outputs both the video data of the first data flow and the video data of the second data flow, according to the performance information of the external device.

The invention discloses a digital broadcast picture rapid display method, device and equipment and a medium, the method is applied to a management server, and the method comprises the following steps: if a playing request of a digital broadcast station sent by a user is detected, determining a target playing station according to the playing request and playing the target playing station; judging whether a mark picture associated with the target playing radio station exists in a preset picture library or not; if yes, reading the mark picture from the preset picture library and displaying the mark picture; determining a current radio station program played by the target playing radio station and judging whether a main picture corresponding to the current radio station program is cached in a preset picture library or not; and if yes, displaying a main picture corresponding to the current radio program to replace the mark picture. According to the method, the corresponding picture can be displayed in time when the digital broadcast is played, and the use experience of a user is improved.

The utility model discloses a frequency modulation frequency band digital audio broadcast monitoring device which comprises an antenna, an FM tuning decoding module, a CDR digital audio decoding module, an audio switching module, an FPGA processing unit, a single-chip microcomputer, a remote communication module, an audio power amplifier, a loudspeaker, a buzzer and an LED button module. The FM tuning decoding module and the CDR digital audio decoding module output audio signals, and the audio switching module selects channels under the control of the FPGA and outputs the audio signals to the power amplifier driving loudspeaker. The FPGA analyzes the input audio and detects interruption and mute faults; the single-chip microcomputer receives the fault signal to control the buzzer and the LED to give an alarm, and uploads fault information through the remote communication module. The device supports analog and digital broadcast monitoring switching, has the functions of fault detection, alarm and remote monitoring, and improves the intelligent management and safe broadcast guarantee capability of the broadcast transmitting station.

The invention provides a receiving apparatus and a transmission wave processing method. A reception device for receiving a transmission wave according to the present invention comprises: a modulation / demodulation unit for receiving a plurality of different transmission waves transmitted over the air in a plurality of different polarization directions, and generating a stream by performing a demodulation process using a pair of transmission waves among the plurality of different transmission waves; and a control unit that controls the modulation / demodulation unit to modulate the plurality of different transmission waves on the basis of identification information included in the plurality of different transmission waves received by the modulation / demodulation unit. And identifying a transmission wave transmitted in a first polarization direction as a main polarization direction and a transmission wave transmitted in a second polarization direction as a sub-polarization direction different from the first polarization direction as the main polarization direction in the pair of the plurality of different transmission waves. Therefore, the advanced digital broadcast can be better transmitted or received.