131 results about "Digital television" patented technology

The invention relates to the technical field of digital televisions, in particular to an intelligent recommendation remote propaganda and distribution system, which comprises a content analysis module for calculating a movement speed value, a color contrast value and a texture complex value in a video picture and generating a scene feature index. According to the method, the motion speed value, the color contrast value and the texture complex value in the video picture are refined, the scene feature index is comprehensively generated, and the regional importance matrix is generated in combination with the regional division information, so that the characteristics and priorities of different video regions are analyzed, and the resource allocation has dynamic adaptability; and the configuration of the code rate and the resolution ratio is optimized in a targeted manner. Through real-time acquisition and spatial mapping of the user sight direction and the head motion data, the user view range is generated and is subjected to superposition calculation with the regional importance matrix, so that regional resource allocation can focus on the region of interest of the user, and the pertinence and effectiveness of content delivery are improved.

The invention provides a signal coverage enhancement method and system for a terrestrial digital television broadcasting transmitter, and the method comprises the steps: obtaining the position data of a train, collecting the latitude and longitude information of the train in a high-speed moving scene in real time, matching the latitude and longitude information with a preset moving track database, and determining the coordinate data of the current position of the train; according to the train position coordinate data, transmitter array distribution parameters of the corresponding section are extracted from a pre-established signal coverage database, and initial beam forming parameters of each transmitter in the corresponding section are obtained; according to the change trend of the signal coverage range, acquiring coverage blind area feedback data, determining a section with insufficient signal power density in the tunnel cutting area, and generating a coverage blind area distribution map; and according to the coverage blind area distribution diagram, adjusting parameters for executing beam forming on the transmitter array in real time, obtaining optimized signal power density distribution data, and forming a mobile coverage corridor framework.

The invention discloses a signal detection and analysis method, a server and a domestic terrestrial broadcast / digital television signal detection and analysis platform, and the method comprises the steps: constructing a data exchange bus based on a five-stage pipeline; acquiring detection data and streaming media data; distributing the data to corresponding pipelines; constructing a multi-stage field programmable gate array cascade structure; obtaining a processing load parameter; when the processing load parameter is smaller than a preset load threshold value, the processor is controlled to send corresponding data to all levels of pipelines according to a preset time sequence; sequentially collecting all levels of pipeline data; performing parallel processing on the to-be-processed data of the fourth-stage pipeline and the fifth-stage pipeline; when it is detected that any processing load parameter exceeds a preset load threshold value, migrating part of the to-be-processed data to other programmable gate arrays; and sending the processed data to a processor, and generating a signal detection analysis report comprising a signal quality analysis result and an equipment state analysis result. According to the invention, the real-time performance and accuracy of signal detection and analysis are improved.

The invention discloses a digital television program playing method, an electronic device, a computer readable storage medium, a computer program product, a chip and a digital television terminal.The playing method comprises the steps that when a target program is recorded, a transport stream packet to which an intra-frame coding frame of the target program belongs is filtered out, encrypting a transport stream packet to which the intra-frame coding frame belongs to obtain an encrypted packet; when a target program is played back, a recording file of the target program is obtained, and the recording file comprises the encrypted packet; in the first multi-speed playback mode, decrypting and decoding the encrypted packet in the recorded file to obtain an audio and video original code stream of the intra-frame coding frame; and playing the audio and video original code stream of the intra-frame coding frame at a first speed, wherein the first speed is higher than the standard speed. According to the method, in the high-speed playback mode, large jump of the display picture can be avoided, and the display quality is improved.

1. Name of the product in this design: Antenna (AN-4011). 2. Purpose of this design: This design is used as a digital television receiving antenna. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to the technical field of digital television display devices, in particular to a digital television display device which comprises a display stand and a plurality of digital televisions, a lifting device is arranged on the surface of the display stand and comprises a plurality of guide strips, every two guide strips form a group, the surfaces of the two guide strips are connected with lifting plates in a sliding mode, and the lifting plates are arranged on the display stand. A pull rope is fixedly connected to the surface of the lifting plate, a plurality of limiting blocks in pairs are fixedly connected to the surface of the showing stand, a pulley is rotatably installed between every two limiting blocks, a sliding groove is formed in the lower surface of the showing stand, a sliding plate is slidably connected to the inner side of the sliding groove, and the sliding plate is fixedly connected with the other end of the pull rope. The pull rope is located on the side wall of the pulley. According to the utility model, the lifting device is arranged, so that the digital television at the high position can be conveniently and flexibly lifted and descended at the low position, and the placing effect of the digital television at the high position is improved.

1. Name of the product in this design: Antenna (AN-5015). 2. Purpose of this design: This design is used as a digital television receiving antenna. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses a bottom supporting device of a digital television, and relates to the technical field of digital television supporting equipment, the bottom supporting device comprises the digital television, and the bottom of the digital television is provided with a supporting piece; the supporting piece comprises a control table, the control table is located in the center of the lower portion of the digital television, adjusting strips are symmetrically connected to the two sides of the control table through adjusting pieces, the bottom of the digital television is aligned to the supporting piece, the adjusting strips are pulled, and angle blocks fixedly connected to the two ends of the two adjusting strips abut against the two sides of the digital television in a limited mode. The adjusting strip and the angle block move back under the resilience force of the spring to fix and limit the digital television, the digital televisions of different sizes can be effectively supported and fixed by adopting the mode, and after the digital televisions are limited and fixed by adopting the mode, the digital televisions can be conveniently fixed. The threaded connection block just faces a threaded installation hole, corresponding to the threaded connection block, in the digital television, installation of the digital television is facilitated, adaptability is wide, and the digital television is more practical.

1. Name of the Design Product: Smart Set-Top Box (YB942). 2. Use of the Design Product: As a multimedia device, for example, connecting with network set-top boxes, network players, TV set-top boxes, digital TV set-top boxes, routers, gateways, etc. to achieve data transmission. 3. Design Key Points of the Design Product: The combination of the overall design shape and texture of the product. 4. Picture or Photo that Best Illustrates the Design Key Points: Usage State Diagram.

1. The name of the design product: set-top box (KV1011). 2. The use of the design product: for receiving and converting of digital television. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. The name of the design product: digital television transmitter cabinet. 2. The use of the design product: for television transmitter cabinet. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. The name of the design product: network television set-top box (model: RT-X4). 2. The use of the design product: the design product is used for network set-top box, television set-top box, digital television set-top box, network player, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the technical field of digital televisions, and discloses an EPG data processing method and device, equipment and a storage medium. The method comprises the following steps: in response to a frequency locking success message, setting filter parameters to obtain an EPG filter; screening the transport stream data packet through an EPG filter to obtain EPG data, and filtering the EPG data to obtain EIT data; and preprocessing the EIT data to obtain preprocessed EIT data, storing the EPG data in a preset database table according to the frequency point information corresponding to the preprocessed EIT data, and displaying the EPG data. Through a series of efficient and rapid EPG data acquisition, screening, processing, storage and display processes, the display efficiency of the EPG data is effectively improved, and the user experience is improved.

The invention relates to the technical field of digital televisions, and discloses a program encryption method, a program decryption method, a storage medium and a related device, and the program encryption method comprises the following steps: obtaining an original transport stream of a program; all data of the original transport stream serve as program data and are repackaged into a new encrypted transport stream, the stream type and the program identifier in the PMT table of the encrypted transport stream are set according to a preset encryption protocol, and the value of the stream type in the PMT table of the encrypted transport stream is an undefined non-standard value; and modulating the encrypted transport stream into a digital television signal, and sending the digital television signal to a user area through a signal transmitting tower. According to the method, the transport stream of the program needing to be encrypted is secondarily packaged into the encrypted transport stream without the program information, so that the encrypted program stream cannot be searched and identified by equipment without a preset encryption protocol, the cracking difficulty and safety of the encrypted program are improved, and the loss of a digital television program operator is reduced.

The invention relates to a water-cooling digital television transmitter power amplifier device which comprises a plurality of power amplifier units and a plurality of heat dissipation plate units, the power amplifier units are arranged in the vertical direction, each power amplifier unit is internally provided with one heat dissipation plate unit, the heat dissipation plate units are in contact with radiators of the power amplifier units, and the heat dissipation plate units are in contact with the radiators of the power amplifier units. The heat dissipation plate unit is configured to introduce cooling fluid through a control pipeline and utilize the cooling fluid to conduct heat of the power amplifier unit, an adjusting heat conduction plate is arranged in the heat dissipation plate unit, and the adjusting heat conduction plate is configured to adjust the temperature of the power amplifier unit according to temperature changes. And the number of cooling fluid channels participating in heat exchange and the fluid speed of the cooling fluid in the channels are cooperatively adjusted, so that the self-adaptive enhancement of the heat conduction capability of the heat conduction plate is realized. And the device can be adaptively adjusted according to the heat accumulation condition at different positions, so that the local adaptive heat dissipation performance of the device is improved.

The application relates to the technical field of stress detection, in particular to an injection molding part stress release detection device, which comprises a box body, a box door, a sealing ring, a taking and placing groove, a stress detection assembly, an adjusting assembly, an infrared distance measuring sensor, a separation assembly, a communication assembly and a cold air inlet assembly; the stress detection assembly and the separation assembly are both installed between the inner walls of the box body, and the separation assembly is located above the stress detection assembly. The air pressure in the heating space and the air pressure in the cooling space are changed by controlling the movement of the corresponding adjusting assembly, and the hot air and the cold air are respectively recycled and stored, so that when the temperature sudden change method is used for the stress release detection of the digital television new material injection molding part, the problem that the injection molding part frequently switches between the heating and cooling states, the residual air in the detection space affects the state switching efficiency of the injection molding part, the temperature control precision of the injection molding part is difficult to control, and more energy is wasted is solved.

The application discloses a digital television program playing method, an electronic device, a computer readable storage medium, a computer program product, a chip and a digital television terminal, wherein the playing method comprises the following steps: when recording a target program, filtering out a transport stream packet to which an intra-coded frame of the target program belongs, and encrypting the transport stream packet to which the intra-coded frame belongs to obtain an encrypted packet; when playing back the target program, obtaining a recording file of the target program, wherein the recording file comprises the encrypted packet; in a first speed playback mode, decrypting and decoding the encrypted packet in the recording file to obtain an audio and video original code stream of the intra-coded frame; and playing the audio and video original code stream of the intra-coded frame at a first speed, wherein the first speed is higher than a standard speed. The method of the application can avoid large jumps of displayed pictures in a high speed playback mode, and improve display quality.

The invention provides a data sending method, a data receiving method, a data interface chip, a processing chip and a chip system, and belongs to the field of digital televisions. The data sending method is applied to a data interface chip, and the data sending method comprises the following steps: decoding an audio and video signal output by an audio and video signal source to obtain a data packet transport stream, the data packet transport stream comprising a plurality of first data packets, and a duration interval exists between two adjacent first data packets in the plurality of first data packets. And performing bit width expansion on each first data packet in the plurality of first data packets to obtain a plurality of second data packets, part of bits of each second data packet recording time length information, and the time length information being used for indicating a time length interval between the corresponding first data packet and the previous first data packet. And sequentially sending the plurality of second data packets to the data processing chip based on the data bus. According to the invention, the problem of packet loss of a multi-bare chip system is reduced.

The application discloses a digital television anti-dazzle adjustable base, and relates to the technical field of digital television base, which comprises a digital television and a base, wherein the bottom of the digital television is symmetrically fixedly installed with a support, and the bottom of the support is movably installed with a movable table. A fixing piece is arranged between the movable table and the support, a reinforcing piece is arranged on the fixing piece, the movable table is arranged on the base, the base is fixedly installed on a television cabinet, a control screen is arranged on the base, and the cylinder stops working after the ambient light sensor senses no dazzling light, that is, the digital television stops moving at this time. According to the light data detected by the ambient light sensor, the angle of the digital television is automatically adjusted so that the digital television is no longer dazzling, automatic anti-dazzle is realized, manual operation of the viewer is not needed, and the use experience is improved. According to the method, the moving and rotating angles of the digital television are relatively small, and the viewing experience of the viewer on the digital television is not affected.

1. The name of the design product: Digital TV antenna (ANT-CS8598). 2. The use of the design product: The design product is used for a digital TV antenna. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

Mounting bracket designed to support or secure a compact digital TV receiver or media unit

The utility model relates to the technical field of electric appliance installation devices, and discloses a coaxial cable electricity taking device which comprises an outer shell and a voltage stabilizing circuit arranged in the outer shell. A coaxial cable input connector, a coaxial cable output connector and an electricity taking terminal are arranged on the outer shell, the coaxial cable input connector is directly and electrically connected with the coaxial cable output connector, the input end of the voltage stabilizing circuit is electrically connected with the coaxial cable input connector, and the output end of the voltage stabilizing circuit is electrically connected with the electricity taking terminal. The coaxial cable power taking device can be connected in series to a coaxial cable of a satellite digital television system, so that intelligent household electric appliances arranged outside a house can obtain power from the coaxial cable through the power taking terminal, the installation of the intelligent household electric appliances is facilitated, and the installation cost and period of the intelligent household electric appliances in old houses are reduced.

This invention relates to the field of digital television, and particularly to a background update method, device, television set, and medium for voice control of smart televisions. After detecting an update to the historical interface of a target application on the smart television, the method updates the historical node tree corresponding to the historical interface based on all control elements in the updated current interface, the layout relationships between all control elements, and the attribute information of each control element. This results in a current node tree corresponding to the current interface. When a user issues a voice control command for the current interface, the current node tree is used to locate the corresponding position of the voice control command within the current interface, thereby executing the voice control command at that position. This simplifies the response process of voice control commands for target applications on the smart television and improves the response speed.

1. Name of the designed product: digital television transmitter (dummy load). 2. Use of the designed product: for digital television transmitter. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view.

The utility model discloses a digital television adjusting support which comprises a working box, a motor is fixedly installed at the bottom of an inner cavity of the working box through a support, a driving wheel is fixedly installed at the output end of the motor, belts are connected to the two sides of the front surface of the driving wheel in a transmission mode, and driven wheels are connected to the ends, away from each other, of the belts in a transmission mode. A threaded rod is fixedly installed on the inner surface of the driven wheel, and a threaded sleeve is installed on the front surface of the threaded rod in a threaded mode. According to the technical scheme, the problems that an existing digital television adjusting support does not have multiple adjusting functions, can only provide a single or limited angle and cannot meet the requirement for the optimal visual angle under different postures, for example, when a user watches a film in a half-lying posture, the pitching angle cannot be adjusted through the support, and the user cannot watch the film in the half-lying posture are solved. The problem that a user needs to adjust the posture of the user continuously to move the screen due to the fact that the user can not watch clearly in a partial area of a television screen, and fatigue of the neck and the waist can be caused for a long time is solved.

1. The name of the design product: intelligent set-top box (KD982). 2. The use of the design product: used as a multimedia device, such as connected with network set-top box, network player, TV set-top box, digital TV set-top box, router, gateway, etc., to realize data transmission. 3. The design points of the design product: the combination of the overall design shape and the texture of the product. 4. The picture or photo that best indicates the design points: perspective view.

The application provides a method and system for distributing emergency broadcast information through digital television, the method comprising: S1, receiving, by a current emergency broadcast platform, emergency information with a release time sent by a related platform in a superior-inferior command relationship with the current emergency broadcast platform; S2, matching the emergency information with the release time, and adding the emergency information to an event stream in chronological order; S3, judging the event state change between the emergency information and the emergency information with the previous time stamp based on the superior-inferior command relationship; S4, screening the emergency information and the emergency information with the previous time stamp according to the event state change, generating update content and a corresponding content display instruction, and distributing the update content and the corresponding content display instruction to the digital television, so that the digital television displays the corresponding update content under the control of the content display instruction.

The utility model relates to a kind of ground wave digital television signal receiving antenna technology.The utility model discloses a kind of logarithmic formula television receiving antenna feed matching port, including the coaxial cable and PCB single panel connected with logarithmic formula television receiving antenna feed end, PCB single panel includes the copper foil layer being set in upper portion and the PCB resin layer being set in lower portion, coaxial cable one end is equipped with net knitting, the other end is bare core wire, net knitting and core wire are respectively connected with PCB resin layer.PCB resin layer one end is connected in the net knitting of coaxial cable, the other end is pressed in coaxial cable core wire 2 connecting end, the copper foil layer of PCB single panel and core wire connecting end are isolated by PCB resin layer and form distributed capacitor, this distributed capacitor compensates the impedance mismatch caused by the tiny inductance of coaxial cable core wire lead line cross connection;Realize a kind of logarithmic formula television receiving antenna feed matching port;So as to realize the beneficial effect of improving the transmission efficiency of antenna.