52 results about "Digital television" patented technology

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.

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. 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.

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 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 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.

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.

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.

This invention discloses a low-power DTMB transmitter carrier recovery and constellation mapping enhancement method and platform, belonging to the field of terrestrial digital television broadcasting technology. The transmitter samples feedback signals from the intermediate frequency (IF), RF preamplifier, or power amplifier output. Based on the PN420, PN595, or PN945 frame header characteristics, it performs cyclic correlation, sliding correlation, or segmented correlation to obtain frequency offset, phase error, and correlation confidence, and drives a digital phase-locked loop to complete transmitter carrier self-calibration. The system generates non-uniform pre-scaling and pre-rotation parameters based on the feedback constellation error, causing the antenna port constellation to converge to a standard DTMB constellation; enhanced constellation mapping is enabled when supported by a dedicated receiver. The low-power control module reduces power consumption and improves transmission quality based on correlation confidence, EVM scheduling correlator, phase calculation, constellation pre-compensation, digital predistortion, and Doherty power amplifier bias.

1. The name of the design product: antenna (AN-4009). 2. The use of the design product: the design product is used for receiving digital television 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.

The invention relates to the technical field of image quality conversion in the field of digital televisions, particularly provides a training method of an image quality conversion model, an image processing method, equipment and a medium, and aims to solve the problems of brightness banding, blocking effect and random noise in an HDR (High Dynamic Range). In order to achieve the purpose, the method comprises the steps that a training image sample pair is obtained, the training image sample pair comprises a reference image and a to-be-converted image corresponding to the reference image, image quality conversion processing is conducted on the to-be-converted image, a converted image is obtained, loss values of the converted image and the reference image are calculated, and parameters of an image quality conversion model are adjusted. According to the method and the device, the to-be-converted image is trained, the step of performing image quality conversion processing on the to-be-converted image is continued until the training condition of the image quality conversion model meets the preset condition, and the image quality conversion model is obtained, so that the problems of brightness banding, blocking effect and random noise in the target image obtained after conversion can be effectively solved.

The invention relates to the technical field of display equipment, and provides display equipment and terminal equipment, the display equipment comprises a first communication module and a first controller, and the first controller is configured to receive a program request sent by the first terminal equipment through the first communication module; acquiring a radio frequency signal corresponding to the program request under the condition that the first communication module does not share the program content with the second terminal device at present or the frequency point to which the program content shared with the second terminal device belongs is the same as the frequency point corresponding to the program request; and demodulating the radio frequency signal into a digital television signal, and after extracting audio and video data in the digital television signal, sending the audio and video data by the first terminal equipment. According to the technical scheme, the space limitation of watching of traditional fixed equipment can be broken through, a user can play the live broadcast content of the radio frequency signal through multiple terminal equipment in the same local area network, and the use convenience and the user experience are enhanced.

1. Name of the product in this design: Television Antenna. 2. Purpose of this design: For receiving terrestrial digital television signals. 3. The key design features of this product are the combination of shape and pattern. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

The invention relates to the technical field of digital television image processing test and optimization, in particular to a digital television test system and test method. The method comprises the following steps: playing a preset reference video stream on the digital television; setting all image processing functions in the digital television to be in a closed state; acquiring a hot spot area temperature value of a processor of the digital television, and recording to form a reference steady-state heat value; a preset reference video stream is kept unchanged, and a single image processing function is selected; performing step-by-step parameter adjustment on a single image processing function, and acquiring a difference value between the hot spot area temperature of each parameter level and a reference steady-state heat value to form a heat effect increment; and synchronously measuring a visual performance index under each parameter level to form a performance gain score. According to the invention, through a simple measuring tool and a non-intrusive testing means, the testing threshold and the equipment cost are reduced, and the scientificity and the accuracy of digital television parameter configuration are improved.

This utility model provides a novel digital television signal receiving device, including a receiving base with two first fitting slots and several second fitting slots. A storage cover is embedded in each of the first fitting slots, and a signal antenna is rotatably connected to each of the second fitting slots. The receiving base also has several second openings, each containing a positioning component. Third slots are formed on both sides of the receiving base, and second rotating shafts are rotatably connected to each of the third slots. Limiting blocks are fixedly connected to the outer circumference of the second rotating shafts. This utility model, through its fitting slot base, flip-up cover, adjustable antenna, and vacuum adsorption positioning components, achieves convenient fixing of the receiving device, flexible adjustment and reliable storage of the antenna. It features a compact structure, simple operation, good stability, and effectively improves the user experience of digital television signal reception.

To collect receiver data while securing confidentiality.SOLUTION: A digital television broadcast system according to an embodiment includes a broadcast signal receiver configured to receive a broadcast signal, an encryption key obtainer configured to obtain an encryption key from the broadcast signal, an encryptor configured to encrypt receiver data in the receiver using the encryption key based on a write command included in the broadcast signal to generate encrypted data, and an information writer configured to write the encrypted data into an information storage.SELECTED DRAWING: Figure 8

The invention discloses a digital television shell with an adjustable heightening U-shaped base, and relates to the technical field of digital televisions, the digital television shell comprises a digital television shell, a control cavity is formed in the lower end of the back surface of the digital television shell, and a control panel is arranged in the control cavity; the bottom of the control board is provided with a U-shaped piece used for supporting and heightening a digital television shell, the control board is internally provided with a heightening piece used for heightening the digital television shell and a containing piece used for containing a television set top box and facilitating wire arrangement, the U-shaped piece comprises a base, and the base is connected to the lower end of the control board through a connecting piece. A locking piece is arranged in the base, splayed supporting legs are symmetrically connected to the bottom of the base in a buckled mode, the digital television shell fixedly connected through a metal bearing piece moves up and down, and the digital television can be adjusted to move up and down so as to meet the requirements of different heights and different watching scenes. Therefore, cervical fatigue of the user can be effectively reduced, and watching comfort is improved.

The invention relates to the technical field of interactive televisions, and discloses an interactive system and an interactive method based on a digital television, which are characterized in that television program feature information required by personalization of digital television acquaintances or strangers is accurately acquired through a voice input module; meanwhile, target television program information is visually output in an efficient and customized mode by combining a television search platform and a digital television screen, and the man-machine interaction process is executed in a classified mode based on digital television user types; the user experience of man-machine interaction of the digital television is improved; and intelligently positioning television program information selected by the digital television user according to the digital television pushed program icon screen surface distribution space coordinate library matrix, the coordinate information of the intersection point of the sight line of the digital television user and the television screen surface and the target television program information set of the digital television user. The television program selected by the digital television user is intelligently and accurately identified based on sight tracking, and the television program playing operation is efficiently and reliably executed by synchronously combining the digital television.

The application belongs to the multimedia field and discloses a screen recording method, device, equipment and storage medium. The method comprises the following steps: obtaining screen data according to a created screen recording thread; constructing an image buffer according to the screen data; and analyzing image data in the image buffer according to a virtual address of the image buffer to obtain screen recording data. According to the application, the screen data is obtained according to the created screen recording thread, the image buffer is constructed according to the screen data, and the image data in the image buffer is analyzed according to the virtual address of the image buffer to obtain the screen recording data. Compared with the existing image processor which stores the synthesized screen data into the image buffer without the display synthesis system, the above-mentioned method can record video pictures under HDMI, analog television, digital television and other channels.

The invention relates to a digital television front-end switching control system and a switching control method thereof, the system comprises a communication module, a switching control comprehensive processing module and a control presentation module, the communication module is used for carrying out data acquisition on heterogeneous controlled equipment and communicating with the heterogeneous controlled equipment, and supports various communication protocols; the switching control comprehensive processing module is used for analyzing and processing the collected data and carrying out alarm display and voice broadcast, the switching control comprehensive processing module can also receive an instruction issued by a user, and heterogeneous controlled equipment is controlled through the switching control comprehensive processing module; and the control presentation module is used for displaying the current working state of the controlled equipment. Software is deployed on terminal equipment, data is collected and displayed, and a control instruction is issued, so that program routing is effectively scheduled, and source signals of various signal types are managed and controlled on a unified platform.

The application provides a digital television emergency broadcast dynamic scheduling method and system based on state estimation, and relates to the technical field of emergency broadcast transmission, and the method comprises the following steps: S0, dividing a target area into a closed area and an open area based on the type of digital television; S1, when receiving current emergency information related to the target area, obtaining the historical on-off logs of all household digital televisions in the closed area, obtaining the initial coverage range of all public digital televisions on the grid in the open area, and obtaining the historical passenger flow data collected by all cameras; S2, estimating the first coverage range generated by the household digital televisions playing the current emergency information based on the historical on-off logs; S3, estimating the second coverage range generated by the public digital televisions playing the current emergency information on the grid based on the historical passenger flow data and the initial coverage range; and S4, rendering the target area based on the first coverage range and the second coverage range.

The invention provides a multi-channel adaptive CDR emergency broadcast adapter control method and system, and relates to the technical field of information security, and the method comprises the steps: receiving emergency messages from an IP network, an FM analog broadcast, a digital television and a CDR digital broadcast in parallel through multiple channels; the method comprises the following steps: acquiring a received signal strength indication, a bit error rate and a signal-to-noise ratio of each channel in real time according to a received emergency message, calculating a quality score of each channel through a preset quality scoring model, and performing adaptive switching between the channels according to the quality score to obtain a continuous and reliable emergency message flow. According to the invention, the continuous, safe and accurate broadcasting of the emergency message in a complex scene is realized.

1. Name of the product in this design: Digital TV Gateway. 2. Purpose of this design: For use in online television playback. 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 discloses a test suite for a digital television host and a conditional access module, which comprises a main controller, an interface bus, a digital television host interface adaptation unit, a conditional access module interface adaptation unit, a modulation-demodulation interface unit, a storage unit and a network interface unit, the main controller is respectively connected with the storage unit, the modulation-demodulation interface unit and the network interface unit, and is also respectively connected with the digital television host interface adaptation unit and the conditional access module interface adaptation unit through the interface bus; and the digital television host interface adaptation unit is respectively connected with the conditional access module interface adaptation unit and the modulation-demodulation interface unit. The test suite provided by the utility model can be compatible with tests of the digital television host and the conditional access module.

1. The name of the design product: antenna (AN-3046). 2. The use of the design product: the design product is used for receiving digital television antenna. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.