104results about "Conversion with high definition standard" patented technology

The invention discloses a real-time video processing system based on an ampere-path FPGA. The real-time video processing system comprises an SD card, an ampere-path FPGA board card and an HDMI displayer. The SD card is used for storing original video data in a Bayer format; the A-path FPGA board card comprises an FPGA end and an ARM end, the FPGA end comprises an SD card reading control module, an image cache FIFO module, a Bayer-to-RGB module, a seven-in-one image processing module, an SDRAM read-write control module and an HDMI display control module, the first four modules are connected in sequence, and the SDRAM read-write control module is connected with the Bayer-to-RGB module, the seven-in-one image processing module and the HDMI display control module; wherein the ARM end comprises a Cortex-M0 processor core, an AHBLiite-Interconnect data bus and all peripheral interfaces, and all the modules are connected in sequence; the ARM end comprises a Cortex-M0 processor core, an AHBLiite-Interconnect data bus and all the peripheral interfaces; the ampere-path FPGA board card is used for completing all video processing functions; and the HDMI display outputs the processed video. The method is good in video processing effect, low in resource consumption, high in flexibility, high in stability and low in hardware cost, and the hardware is 100% localized.

The invention provides a preparation method of an HDMI (High Definition Multimedia Interface) high-performance common-mode suppressor made of a nanocrystalline material, relates to the technical field of electronic component preparation, and aims to meet the harsh requirement of HDMI high-frequency high-speed signals on common-mode noise suppression, the method comprises the following steps: constructing a multi-layer heterogeneous magnetic film with a gradient interface on a microstructured substrate by utilizing multi-target magnetron sputtering; a selective energy field assisted annealing technology is adopted to realize precise nanocrystallization and magnetic anisotropy regulation and control of the magnetic film; and a high-precision three-dimensional coil structure is integrated by combining a micromachining process. The prepared common-mode suppressor is small in size and high in integration level, shows excellent common-mode suppression efficiency, wide working bandwidth and excellent signal integrity in a high-frequency band, has high reliability, and is suitable for a new generation of HDMI (High-Definition Multimedia Interface).

A multimedia processing method, a multimedia processing apparatus, and a non-transitory computer-readable storage medium are disclosed. The multimedia processing method includes: acquiring an input multimedia, and performing image quality enhancement processing on the input multimedia to obtain an enhanced multimedia. A resolution corresponding to the enhanced multimedia is higher than a resolution corresponding to the input multimedia.

The invention relates to the technical field of image communication, in particular to a video slow-action frame insertion playback system based on a generative adversarial network, which comprises a video signal acquisition module, a signal processing module, a frame rate conversion module and a playback code output module. The acquisition module outputs an original video frame sequence through an annular buffer; the processing module separates the denoised detail components and the edge gradient features in parallel; the frame rate conversion module uses a geometric structure as a boundary locking condition to guide detail components to execute nonlinear motion compensation and intermediate frame reconstruction; and the playback module executes time base remapping and distributed coding transmission. According to the invention, through a depth generation architecture of structural constraint textures, in combination with space-time consistency verification and a nearest neighbor pixel backfilling mechanism and a virtual time base rate decoupling technology, real-time slow-action video redisk with high signal-to-noise ratio and no artifacts for a high-speed moving target is realized.

The present technology is to enable a transmitter device to read appropriate device information (EDID) from a receiver device with a reduced burden on the user. A memory unit that stores first device information and second device information, and a communication unit that communicates with an external device are included. The control unit determines to cause the external device to read the second device information, on the basis of reception of a rewrite signal for the first device information from the external device. It is possible to cause the external device (a transmitter device) to read appropriate device information (EDID) from a receiver device (a reception device) with a reduced burden on the user, and thus, user-friendliness can be increased.

The invention provides an image resolution adjusting method and an electronic device. The method comprises the following steps: running a target application program to obtain a target image with a first resolution based on a first frame rate; selecting a target memory from the plurality of buffer memories according to the utilization rate of each of the plurality of buffer memories during the running of the target application program; processing the target image through an image processing model and a target memory to adjust the resolution of the target image from the first resolution to a second resolution, the second resolution being higher than the first resolution; and controlling the display interface to present the target image with the second resolution based on the first frame rate. Therefore, the user experience and the image processing efficiency of the electronic device can be effectively improved.

The present technology is to enable a transmitter device to read appropriate device information (EDID) from a receiver device with a reduced burden on the user.A memory unit that stores first device information and second device information, and a communication unit that communicates with an external device are included. The control unit determines to cause the external device to read the second device information, on the basis of reception of a rewrite signal for the first device information from the external device. It is possible to cause the external device (a transmitter device) to read appropriate device information (EDID) from a receiver device (a reception device) with a reduced burden on the user, and thus, user-friendliness can be increased.

A docking device and method with video capturing function are provided. The docking device includes a first interface, an output interface, a second interface, a first video processor and a video capturing device. The docking device receives a first input video signal or a second input video signal from the first interface or the second interface. The first video processor generates a first output video signal with an output format in response to the first input video signal or the second input video signal. The video capturing device generates a second output data signal with a format of the Universal Serial Bus in response to the first input video signal or the second input video signal.

A method for converting a source video content constrained to a first color space to a video content constrained to a second color space using an artificial intelligence machine-learning algorithm based on a creative profile.

The invention relates to the technical field of HDMI (High Definition Multimedia Interface) transmission, and provides an HDMI one-way transmission security enhancement method and device, and the method comprises the steps: determining the version, interface type and pin serial number and definition of an HDMI used in an application scene, and identifying whether an HDMI transmission channel is a one-way channel or a two-way channel; for a bidirectional channel which is not needed in an application scene, one-way transmission security enhancement is realized by adopting a physical cutting mode; for a bidirectional channel required by an application scene, one-way transmission security enhancement is realized by adopting a physical cutting-off and receiving end simulation substitution mode; for a one-way channel, a signal amplifier is adopted to realize one-way transmission security enhancement. According to the invention, unidirectional transmission security enhancement can be carried out on the HDMI native interface, so that the HDMI native interface has a pure unidirectional transmission characteristic, security risks such as sensitive data leakage of a receiving end are blocked, and the unidirectional transmission security of the HDMI is improved. Moreover, the system is improved based on a native interface, and has the advantages of low power consumption, small size, low cost and the like.

The application provides an arbitrary resolution HDMI prototype verification device and method, wherein a frame analysis unit analyzes received data packets and stores analyzed image data into a storage unit at a limited clock frequency, a frame extraction unit sequentially extracts each frame image data from the storage unit at a clock frequency corresponding to a corresponding resolution, when the frame extraction unit sequentially extracts previous frame image data, it is judged whether next frame image data is stored in the storage unit; if the next frame image data has been stored, the frame extraction unit extracts the next frame image data; if the next frame image data has not been stored, the frame extraction unit repeatedly extracts the previous frame image data until the next frame image data is stored; the frame extraction unit outputs the extracted image data and performs image display; through the above method, the clock frequency required by any resolution is matched with the limited clock frequency, and corresponding verification is completed.

The invention discloses a method for switching a DP interface to an HDMI interface and an interface converter. The method comprises the following steps: receiving a main data flow attribute MSA sent by the DP interface; analyzing the MSA to obtain the total amount of horizontal lines occupied by a vertical synchronization Vsync signal and a vertical back shoulder VBP; sending the data stream sent by the DP interface to the HDMI interface in a delayed manner, wherein the number of horizontal lines occupied by the delayed sending in the time domain is the total amount X; and when the data enable DE identifier is monitored in the data stream sent by the DP interface, sending a Vsync signal to the HDMI interface. Therefore, the data flow of the HDMI interface is staggered by X horizontal lines backwards relative to the data flow of the DP interface, and at the moment, the time domain position for sending the Vsync signal is overlapped with the position of the DE identifier. Furthermore, the Vsync signal is sent when the DE identifier is monitored, so that the normalization of the data stream sent to the HDMI interface is ensured, and the compatibility of switching the DP interface to the HDMI interface is improved. Compared with the method of carrying out software and hardware adaptation on the graphics card to enable the graphics card to have the capability of sending the AS-SDP, the resource overhead is relatively low, and the implementation cost is reduced.

The invention relates to the technical field of ultrasound, and discloses a display signal output circuit in an ultrasonic product and the ultrasonic product, the circuit comprises a hot plug detection module, a differential signal one-to-two module and an HDMI-to-S-Vedio module, the hot plug detection module detects the in-place state of HDMI and S-Vedio display equipment and feeds back the in-place state to a CPU; the differential signal one-to-two module divides a single-path HDMI differential signal output by the CPU into two paths, one path is directly output to the HDMI display device, and the other path is converted into an S-Vedio signal through the HDMI-to-S-Vedio module and then output to the S-Vedio display device. One HDMI signal source is expanded into two different video signals to be output, the problem that CPU video signals are insufficient is solved, and the circuit is simple in structure, flexible in design and suitable for multi-screen display scenes of ultrasonic products.

The invention provides a video signal conversion method and device, electronic equipment, a storage medium and a program product. The conversion method comprises the following steps: acquiring a first color signal; wherein the first color signal is obtained through a first video signal; determining a first brightness signal according to a preset brightness formula and the first color signal; determining a second brightness signal according to a preset inverse tone mapping operator and the first brightness signal; determining a brightness scaling coefficient according to the first brightness signal and the second brightness signal; determining a second color signal according to the first color signal and the brightness scaling coefficient; wherein the second color signal is used for generating a second video signal. According to the technical scheme, the brightness scaling coefficient is determined based on the first color signal, the preset brightness formula and the preset inverse tone mapping operator, so that the second color signal meeting the requirement of the second video signal is obtained, and the whole process has the advantages of low cost and high efficiency.

Video conversion technology, in which a first stream of video content is accessed and multiple, different layers are extracted from the first stream of the video content. Each of the multiple, different layers are separately processed to convert the multiple, different layers into modified layers that each have a higher resolution. The modified layers are reassembled into a second stream of the video content that has a higher resolution than the first stream of the video content.

The invention provides a phase synchronization detection system and method for multipath HDMI signals, and the method comprises the steps: receiving multipath HDMI input signals transmitted by a corresponding decoding card group through each phase detection device, and extracting phase detection data from the multipath HDMI input signals; performing multi-dimensional cross comparison on the phase detection data through a phase analysis algorithm to obtain deviation detection data; performing dynamic coding compression on the deviation detection data to obtain compressed detection data; distributing priority labels to the compressed detection data according to different types; transmitting the compressed detection data to the user terminal according to the priority label; the user terminal receives the compressed detection data sent by the plurality of phase detection devices at the same time, and decodes the compressed detection data to obtain deviation detection data; generating a phase comparison diagram updated in real time according to the deviation detection data; and each phase detection device is externally connected with a display for displaying a comparison diagram of each path of HDMI input signals received by the phase detection device.

The present application discloses a display method, a display device, and a computer-readable storage medium, which relate to the field of display technology and can be used to: obtain the extended display identification data EDID processing capability of a video source device; when the EDID processing capability of the video source device supports parsing the extended EDID, receive the first video data from the video source device; adjust the resolution of the first video data from the first resolution to the second resolution to obtain the second video data; adjust the resolution of the second video data from the second resolution to the third resolution to obtain the third video data; the third resolution is the resolution of the display of the display device; and display the third video data by scanning two rows of pixels at the same time.

A sink device comprising a connector which has a first ground (GND) corresponding to a first standard; and a processor which receives a signal from a source device, via the connector, and if the received signal is of a second standard corresponding to a second GND that includes the first GND, requests, from the source device, information about the signal of the second standard.

The application discloses a signal processing method and device based on a distributed system and a storage medium, relates to the technical field of electric communication, and receives an original output signal of an ultra-high-definition signal source through a digital input interface, determines the resolution of a spliced display terminal and a target display area, performs stretching operation on the original output signal according to the resolution, performs area cutting on the stretched original output signal according to the target display area, determines a target signal, synchronizes the processed target signal to sub-distributed codec devices in the same group through a cascade architecture, and finally drives digital output interfaces of the sub-distributed codec devices to transmit the target signal to corresponding sub-screens of the spliced display terminal. The application processes the ultra-high-definition signal through multiple distributed codec devices in the distributed codec device and transmits the signal to corresponding sub-screens, so that the image display quality is improved and the image display delay is reduced.

The invention provides a method for capturing an image in video recording, electronic equipment and a readable medium. The method comprises the steps that a video interface of a camera application is displayed, the dynamic range of an image displayed by the video interface is larger than a first value, the first value indicates that the image displayed by the video interface is a non-low-dynamic-range image, and the image displayed by the video interface is stored in a cache region; and in response to a snapshot instruction in the video, taking an image corresponding to the snapshot moment in the cache region as a snapshot image. The cache region stores the image displayed by the video recording interface, that is, the image collected by the camera is stored in the cache region, the image is greater than the first value, and the first value indicates that the image is a non-low dynamic range image, which indicates that the camera outputs a high dynamic range image, and the video recording interface belongs to an HDR video recording interface. Under the condition that the snapshot instruction is formed in the video, the image corresponding to the snapshot moment in the cache region is taken as the snapshot image, and the snapshot moment is the moment corresponding to the snapshot instruction, so that the ZSL requirement of image snapshot is ensured.

The invention relates to a method for converting an input image comprising input luminance components constituted by elements into an output image comprising output luminance components constituted by elements, the output luminance component values having different range extensions than the corresponding ranges of input luminance component element values. The method comprises, for the input image, computing a general variable value representative of at least two input luminance component element values, transforming each input luminance component element value into a corresponding output luminance component element value as a function of the computed general variable value, and converting the input image using the determined output luminance component element values. The transforming step uses a set of predetermined output values organized into a 2D lookup table (2D LUT) comprising two input arrays indexing respectively a set of selected input luminance component values and a set of selected general variable values, each predetermined output value matching a pair of values constituted by an indexed input luminance component value and an indexed general variable value, the input luminance component element value being transformed into an output luminance component element value using at least one predetermined output value.

The present application discloses a method for converting a DP interface to an HDMI interface and an interface converter, comprising: receiving the main data stream attribute MSA sent by the DP interface; parsing the MSA to obtain the total number of horizontal lines occupied by the vertical synchronization Vsync signal and the vertical back porch VBP; delaying the sending of the data stream sent by the DP interface to the HDMI interface, and the number of horizontal lines occupied by the delayed sending in the time domain is a total of X; when a data enable DE flag is detected in the data stream sent by the DP interface, sending a Vsync signal to the HDMI interface. In this way, the data stream of the HDMI interface is staggered by X horizontal lines compared to the data stream of the DP interface, and the time domain position of the Vsync signal is overlapped with the position of the DE flag. Furthermore, when the DE flag is detected, the Vsync signal is sent, which ensures the standardization of the data stream sent to the HDMI interface and improves the compatibility of the DP interface to the HDMI interface. Compared with adapting the graphics card's software and hardware to enable it to have the ability to send AS-SDP, the resource overhead of the present application is small, which reduces the implementation cost.

The present invention relates to the technical field of ultra-high-definition picture quality optimization, and discloses a method and system for optimizing the ultra-high-definition picture quality of an intelligent all-in-one machine, including: identifying the display mode of the intelligent all-in-one machine; when the display mode is the first mode, improving the picture quality of the displayed picture to obtain a picture with improved quality; analyzing the improved picture quality of the picture with improved quality, and when the improved picture quality meets the preset display requirements, using the picture with improved quality as the target display picture in the first mode; when the display mode is the second mode, performing edge detection on the second display picture, analyzing the picture quality based on the result of the edge detection, calculating the gray level of the picture when the picture quality does not meet the preset display requirements; adjusting the parameters of the second display picture based on the gray level to obtain an adjusted picture, analyzing the perceived authenticity of the adjusted picture, and when the perceived authenticity meets the preset authenticity, using the adjusted picture as the final display picture in the second mode. The present invention can improve the accuracy of ultra-high-definition picture quality.

An HDMI FRL error correction system includes a SR / SSB correlator, an SR / SSB lock detector coupled to the SR / SSB correlator, an SR / SSB predictor coupled to the SR / SSB lock detector, an SR / SSB bit error corrector coupled to the SR / SSB correlator, the SR / SSB lock detector and the SR / SSB predictor, and an SR / SSB detector coupled to the SR / SSB bit error corrector. The SR / SSB correlator is used to correlate an input SR signal to a SR signal or correlate an input SSB signal to a SSB signal and generate a correlation result accordingly. The SR / SSB lock detector is used to set a lock flag according to the correlation result.

According to the dual-to-single and single-to-dual transmission method and the HDMI dual-pixel transmission method and device provided by the invention, the FIFO is matched with the state machine, so that the phenomenon that an asynchronous FIFO read clock is faster than a write clock and is easy to empty when a video stream is subjected to dual-pixel-to-single-pixel conversion is avoided. Through the two write request signals which are set by the flipping signal, have opposite levels and respectively control the write enable of the two asynchronous FIFOs, the conditions that the write clock is faster than the read clock and the depth of the FIFO is insufficient when the video stream is processed by the asynchronous FIFOs subsequently, the write clock is faster than the read clock, and the data is covered when the write operation is continued are prevented. Pixel conversion is carried out on the peripheries of the transmitter IP core and the receiver IP core of the HDMI interface, the dual-pixel transmission function can be achieved under the condition that the original IP core input bit width is not changed, the bit width of a data bus is increased through dual-pixel transmission, the working clock frequency of the physical layer IP core of the serial deserializer is remarkably reduced, and meanwhile the data throughput is improved.

An A / V reception apparatus according to an embodiment of the present disclosure may comprise: a display; a radio frequency (RF) reception module that receives a compressed RF packet from an A / V transmission apparatus, the compressed RF packet including a video frame corresponding to a content video, and AI picture quality information regarding an AI picture quality region indicating at least a partial region of the content video; and a microcomputer that acquires a value of a picture quality factor of the AI picture quality region on the basis of the AI picture quality information, transmits the value of the picture quality factor to the A / V transmission apparatus, receives, from the A / V transmission apparatus, a picture quality correction value in which the value of the picture quality factor of the AI picture quality region has been corrected, and outputs the video frame via the display on the basis of the received picture quality correction value.

The invention discloses a foldable wireless audio and video conference device, and an emitter device comprises a housing and a shooting rod assembly. A function assembly is fixedly installed in an inner cavity of the shell, the shooting rod assembly is folded and unfolded through rotating fit of a rotating shaft assembly fixed to the shooting rod assembly and a connecting support fixedly installed on the shell, the shell is provided with a power socket, and the function assembly comprises a battery. And the battery is fixedly mounted on the weighting iron and arranged at the bottom of the inner cavity of the shell, and the camera has the beneficial effects of flexibility in power supply selection, convenience in structure carrying and transportation, stability in use and good signal transmission and shooting experience.

The invention relates to a control system and method for controlling the state of a CEC control screen based on an HDMI interface. The control system comprises a microcontroller module, a dynamic channel switching module, a hybrid level conversion module and third-party software communication. The control system and method are ingenious in design, and intelligent control over the HDMI equipment is achieved through the microcontroller module MCU. An HPD signal level state of an HDMI interface is detected through an HPD signal processing circuit, an MCU is triggered to be interrupted when an HPD high level is detected, and after a display EDID signal is transmitted to the MCU through a DDC channel, a DDC channel of a display can be switched to an X86 platform through a DDC channel selection circuit according to a level signal; the conversion between the MCU logic level and the CEC signal level of the HDMI interface can be realized according to the hybrid level conversion module; cooperative work of display state and brightness adjustment can be realized through communication cooperation of multiple pieces of hardware and third-party software and accurate time sequence control. The method is low in cost, high in response speed and suitable for high-cost-performance HDMI control scenes such as education large screens and the like.

The invention relates to the field of display equipment interface expansion, and discloses a Type-C to four-path HDMI video docking station system and device, and the system comprises an input module which is used for receiving a Type-C or DisplayPort video signal from a host; the multi-stream transmission distribution module is used for distributing the input video signal into multiple paths, one path is output to the protocol conversion module, and the other path is output to the next-stage multi-stream transmission distribution module as a daisy chain; and the protocol conversion module is used for converting the DisplayPort signal output by the multi-stream transmission distribution module into an HDMI (High Definition Multimedia Interface) signal. A physical link from single-path input to four-path HDMI output is realized in a single docking station through a four-stage cascade chip group, and signal splitting and protocol conversion are synchronously completed at each stage, so that a common HDMI display is directly accessed to a system, a four-screen independent display function is realized through pure hardware, and the compatibility and expansion capability of common display equipment are improved.

A universal docking station with high-speed data transmission and high resolution is provided, including two parallel PCB circuit boards each connected to a TB4 upstream port, a TB4 downstream port, an HDMI port, a USBA 10 G port, and a USBC 10 G port. Each main control circuit is provided with a Thunderbolt 4 controller. A computer can be connected through the TB4 upstream port. The TB4 upstream port is connected to the TB4 downstream port through the main control circuit and PD control circuit. Through the TB4 downstream facing port, input and output video signals and data signals converted by the main control circuit and PD control circuit can be transmitted. Through the main control circuit and video conversion circuit connected to the HDMI port, video signals can be transmitted, and data information can be transmitted through the USBA 10 G port.