26 results about "Extended Display Identification Data" patented technology

The invention discloses a high-resolution and low-delay audio and video transmission method and system, which realize high-quality and low-delay remote audio and video transmission by dynamically negotiating transmission resolution and self-adaptive compression coding. The method comprises the following steps: constructing a resolution negotiation matrix through extended display identification data based on receiving end equipment, and determining an optimal transmission resolution parameter; the compression ratio is dynamically adjusted in combination with network bandwidth fluctuation, a compressed data stream is generated by adopting inter-frame prediction coding, and the anti-interference capability is enhanced through forward error correction and time division multiplexing packaging; and finally, the differential signal pair is transmitted to a receiving end to be decoded and restored into a standard audio and video signal. According to the method, the transmission delay is remarkably reduced while the high-resolution image quality is ensured, the method effectively adapts to a complex network environment, the transmission distance and stability are considered, and the method is suitable for application scenes such as remote conferences and real-time monitoring which have high real-time requirements.

The invention relates to a hot-pluggable AI perception extension system suitable for multiple types of display terminals, and the system comprises a display terminal module, an integrated video input interface, and a power supply interface. The AI sensing module is electrically connected with the display terminal module in a hot plug mode through a magnetic type mechanical interface and used for collecting multi-mode user data in real time and executing local reasoning operation; the end-cloud collaborative learning module is in communication coupling with the AI sensing module and comprises an end-side model for offline dialogue and basic scene recognition and a cloud model for complex reasoning and global knowledge base calling; performing incremental optimization on the scene recognition capability through a differential privacy federation continuous learning mechanism based on local data shared by an end side model; and the cross-terminal rendering engine automatically acquires the extended display identification data of the display terminal, and matches the resolution ratio and the refresh rate of the target terminal in real time. The flexibility and compatibility of hardware expansion are remarkably improved, and high-precision reasoning in a complex scene is realized while the real-time performance is ensured.

A gateway device (1) according to an embodiment comprises: a communication unit (10) for establishing a wired connection with a source device (2) and establishing a wireless connection with a sink device (3) that outputs media; an interface unit (20) for receiving input from a user or outputting information to the user; and a control unit (30) for controlling the communication unit (10) and the interface unit (20). The control unit (30) may: acquire, from the sink device (3) via the communication unit (10), extended display identification data (EDID) and communication performance information about the sink device (3), the EDID including an output format of the sink device (3); acquiring, from a user via the interface unit (20), information about an environment in which wireless communication with the sink device (3) is performed; determining a current maximum transmission rate of the wireless communication with the sink device (3) on the basis of the acquired communication performance information on the sink device (3) and the acquired information on the environment in which the wireless communication with the sink device (3) is performed; determining a bit rate required to wirelessly transmit data relating to the media to the sink device (3) in an output format included in the acquired EDID in order to output the media in the sink device (3); and determining a non-transmittable format among the output formats based on the determined required bit rate and the current maximum transmission rate.

An electronic device includes a memory; a communication interface; and a processor. The processor is configured to, based on a source device connected through the communication interface being identified to support a first version of transmission standard, convert first Extended Display Identification Data (EDID) information, which is stored in the memory and corresponds to a second version of transmission standard, to second EDID information corresponding to the first version of transmission standard, and change a state of a hot plug detect signal related to the communication interface so that the source device reads EDID information.

Some embodiments of the present application provide a display device and a standby wake-up method. The method can send preset extended display identification data in a power management module to an external device and receive a wake-up message sent by the external device based on the extended display identification data in response to a data exchange message sent by the external device when the external device is powered on in a standby state of the display device. In response to the wake-up message, the power management module is powered on and the external device is notified to resend the data exchange message. In response to the data exchange message, the extended display identification data newly written in the memory is sent to the external device, so that the external device sends port information based on the new extended identification data. Then, the signal source channel is set according to the port information, and the display screen of the signal source channel is displayed. The method can improve the reliability of the standby wake-up function of the display device, automatically switch the signal source channel of the display device, and improve the user experience.

The electronic device with a connector supporting a multi-connection standard includes a connector, a processor, a controller, an extended display identification read-only memory, a first multi-tasking circuit, and a second multi-tasking circuit. The first multi-tasking circuit is coupled to at least one signal pin of the connector, the processor, and the controller. The second multi-tasking circuit is coupled to the extended display identification read-only memory, the first multi-tasking circuit, the processor, and the controller. In an update state, the controller is electrically connected to the extended display identification read-only memory via the second multi-tasking circuit, and updates extended display identification data in the extended display identification read-only memory with update data.

The invention relates to a display device and a processing method for the display device. When the display equipment detects that the external equipment is connected, setting the extended display identification data as initial extended display identification data; after the user indicates to enhance the extended display identification data, the display device obtains display parameters, generates enhanced extended display identification data according to the display parameters, and switches and sets the extended display identification data into the enhanced extended display identification data; and acquiring a media resource signal parameter of the external equipment, and updating and setting the extended display identification data based on the media resource signal parameter. In this way, the display device can generate the enhanced EDID according to the display parameters to display the capability information supported by the display device, so that the external device sends high-quality media asset data, and the use experience of a user is improved. And meanwhile, the EDID can be updated and set according to the media resource signal parameters of the external equipment, so that the external equipment can normally read the EDID.

An extended display identification data management apparatus and method, the extended display identification data management apparatus being suitable for a plurality of displays each storing an extended display identification data and a chip module, a microprocessor generating a first control signal and a second control signal to control a first multiplexer and a second multiplexer, and the chip module is used for transmitting the extended display identification data to the corresponding storage device to be stored and used as stored identification data, reading the stored identification data and respectively generating display pictures of the display according to the stored identification data. The memory address of the extended display identification data is managed by the microprocessor, so that the function of locking the extended display identification data can be performed by the microprocessor even if the memory address of the extended display identification data cannot be fixed in the chip module.

The present disclosure provides a method of controlling a high-definition multimedia interface (HDMI). The method can include reading, by a source device, an extended display identification data (EDID) of a sink device when the sink device is connected with the source device, writing information about the source device into a state and control data channel (SCDC) structure, and reading the EDID again by the source device based on a predetermined field value included in the SCDC structure.

The application relates to a display device and a driving updating method thereof, and relates to the technical field of display devices. The display device comprises at least one high-definition multimedia interface (HDMI) used for connecting external devices; the external devices comprise external video source devices and external audio output devices; a display is used for content display; a loudspeaker is used for audio output; at least one controller is connected with the display and is configured to: in the case of entering a double-window mode, storing first extended display identification data (EDID) of each HDMI in a single-window mode, and updating HDMI driving according to the double-window mode; storing audio-video description information matched with a currently used audio output device; in the case of exiting the double-window mode, determining to-be-updated information in the HDMI driving according to the audio-video description information and the first EDID, and updating the to-be-updated information in the HDMI driving, so that the number of display black screen times is reduced.

The application discloses a display device and a configuration method for expanding display identification data. The display device splits the expanded display identification data into a basic block and an expansion block which are decoupled from each other, and receives a combination configuration sent by a terminal device. The basic block is used to represent basic display attributes of a display, the expansion block is used to represent expansion display attributes of the display, the combination configuration is used to adapt to a compatible fault of an HDMI interface, and the combination configuration comprises a combination rule. The basic block and the expansion block indicated by the combination rule are spliced based on the combination configuration, so as to generate target expanded display identification data, and the target expanded display identification data is output to an external device through the HDMI interface. The application breaks the solidification limitation of EDID whole package, can remotely reconfigure EDID for the compatible fault of the HDMI interface, does not need to upgrade the whole machine or replace hardware, and further improves the configuration efficiency of EDID and improves the experience of users.

The invention discloses a method for a bridge chip to actively switch source end resolution and related products, and the method comprises the steps: the bridge chip determines target extended display recognition data from various built-in extended display recognition data based on a received external control instruction, each kind of extended display identification data in the plurality of kinds of extended display identification data corresponds to different resolutions; based on an external control instruction, reconnecting the bridging chip with a communication pin of a source end; and switching the output resolution of the source end based on the target extended display identification data. Therefore, various extended display identification data are built in the bridge chip, the target extended display identification data are selected based on the external control instruction, and the reconnection operation on the communication pin is combined, so that the source end can automatically switch the output resolution according to the target extended display identification data; and the operation convenience and the use experience of the user are effectively improved.

The invention provides an interface display method and electronic equipment. The method can be applied to the electronic equipment, the electronic equipment comprises a display screen, the display screen has a first refresh rate, and the method comprises the steps that in response to a first instruction, a first window is displayed on the display screen, a first interface is displayed in the first window, the first instruction is used for creating a first virtual screen, and the first virtual screen has the first refresh rate; the first interface is mapped to a first window from an interface of a first virtual screen, the first virtual screen corresponds to first extended display identification data EDID, the first EDID is different from at least one second EDID historically stored in the electronic equipment, and each second EDID corresponds to external equipment historically connected or a second virtual screen historically created. According to the interface display method disclosed by the embodiment of the invention, in the process that the electronic equipment displays the virtual screen interface based on the window created by the display screen, the problem that the display screen flashes black can be avoided, and the use experience of a user is improved.

The present invention provides a control method of a display device, wherein the control method includes the steps of: connecting with a first image source device, transmitting an original Extended Display Identification Data (EDID) to the first image source device, and receiving first image data from the first image source device; connecting with a second image source device, and receiving second image data from the second image source device, wherein the first image data and the second image data are displayed on the display device simultaneously, and the first image data and the second image data are displayed on a first display area and a second display area of the display device, respectively; modifying the original EDID to generate a modified EDID according to a size / resolution of the first display area; and providing the modified EDID to the first image source device.

The invention discloses an audio processing system and an audio processing method. The audio processing system comprises a receiving circuit and a processing circuit. The receiving circuit is connected with the sound source device and the processing circuit, and the receiving circuit is used for adjusting the original extended display capability identification data to generate optimized extended display capability identification data. The receiving circuit has optimized extended display capability identification data for the sound source device to read, the receiving circuit receives a first multi-channel signal responded by the sound source device according to the optimized extended display capability identification data, and the number of channels of the first multi-channel signal is greater than the highest number of channels supported by the audio processing system. The processing circuit is configured to convert the first multi-channel signal into a second multi-channel signal, wherein the number of channels of the second multi-channel signal is different from the number of channels of the first multi-channel signal.

A display includes: a memory, a physical switching element and a controller. The memory is configured to store multiple pieces of candidate extended display identification data. The physical switching element is configured to be triggered by external force to generate a first switching signal. The controller is connected to the physical switching element and the memory. The controller is configured to control a displayed screen according to original setting data among the pieces of candidate extended display identification data, and adjust the displayed screen according to target data that is different from the original setting data among the pieces of candidate extended display identification data after receiving the first switching signal.

A method and apparatus for generating a video wall, a storage medium, and a display system are disclosed. The method includes: acquiring identifiers of multiple video walls connected to a video wall processor; designating each video wall as a target video wall, and sending a reset command to each target video wall, the reset command carrying the identifier of the target video wall; determining the output port where extended display identification data negotiation occurs, and establishing a correspondence between the output port and the target video wall; and generating a video wall composed of images output from the multiple output ports according to the correspondence, wherein the position of the image output from the output port on the video wall corresponds to the position of the corresponding video wall in the video wall matrix. This embodiment provides a solution that, by resetting the video walls and determining the correspondence between the video walls and the output ports, generates a video wall, enabling automatic video wall generation and improving efficiency and accuracy.

The application discloses a screen projection display parameter setting method and device and a computer readable storage medium, wherein the method comprises the following steps: detecting whether a record file is empty; if the record file is empty, selecting a screen projection display parameter in the extended display identification data as a current setting parameter of the screen projection display; if the record file is not empty, detecting whether the device name is matched in the record file; if the device name is matched, detecting whether the screen projection display parameter corresponding to the device name is called in the record file; if the screen projection display parameter is called, taking the screen projection display parameter as the setting parameter; if the screen projection display parameter is not called, selecting a screen projection display parameter as the setting parameter. The application realizes a humanized screen projection display parameter setting scheme, so that the screen projection display parameter memory scheme has higher implementability, better accuracy and stability, the control logic is clear and easy to realize, and the user's screen projection use experience is greatly enhanced.

The invention discloses a method and system for arranging a display simulator in an array server, and relates to the technical field of data center operation and maintenance, and the method comprises the steps: collecting a link consistency evidence set, judging the availability of a differential link, expanding the connectivity of display identification data, and completing the physical connection of a display virtual circuit; judging the effectiveness of the hot plug indication time sequence and establishing a video output link; accessing the display virtual circuit to a control bus of the substrate management controller, performing acquisition and consistency check analysis on a message of the display virtual circuit, and identifying a video output link communication standard-reaching state of the display virtual circuit; the baseboard management controller controls the bus to issue a command to obtain an initial display capability field matched with the command; on the basis of the initial display capability field, generating a release and shielding rule, and performing permission judgment on the command; and adjusting the initial display capability field step by step and displaying the output of the virtual circuit based on release and shielding rules. According to the invention, display consistency is guaranteed and remote stability is maintained.

Some embodiments of the present application provide a display device and a fast media switching signal control method, the display device can set a protocol mode of a transmission protocol corresponding to a device interface to an enhancement mode in response to a setting instruction input by a user for starting a fast media switching function; a conflict setting item is detected, and the conflict setting item comprises one or a combination of more of a top speed mode, a direct connection mode and a high frame rate mode. If at least one of the conflict setting items is opened, closing the opened conflict setting items; and switching the screen display parameter into a screen display parameter corresponding to the target mode suitable for the fast media switching function, and setting the extended display identification data according to the setting instruction. According to the display equipment, when the QMS function is enabled, corresponding logic switching is carried out by integrating the associated function, so that the problem of abnormal switching of the QMS signal control function is solved.

A method of managing EDID is implemented by a management apparatus that is connected to a chip module and a display. The management apparatus includes an MCU, an IO interface and a storage medium. The IO interface includes a connection port adapted to be connected to the display and associated with the storage medium. The display stores EDID related to itself. The method includes steps of: the MCU obtaining the EDID from the display; the MCU storing the EDID in the storage medium that is associated with the connection port which the display is connected to; and the MCU generating and sending a notification signal that is related to the storage medium to the chip module, so that the chip module obtains the EDID from the storage medium based on the notification signal, and controls the display that corresponds to the storage medium to display content based on the EDID.

The application discloses a kind of multi-screen display synchronous display optimization methods.This method includes: obtaining the extended display identification data of each display and timing parameter;Based on the actual time stamp of the vertical synchronization signal of each display clock monitor, construct timing drift characteristic model;Select timing reference source or generate virtual reference clock;Delay compensation instruction is inserted in GPU rendering command stream, and the scanning start offset address of the frame buffer of secondary display is adjusted dynamically, and the physical clock phase difference between each display is compensated.In addition, for the mixed refresh rate scene, a proactive double buffering queue is established, and a complete frame is selectively output based on the tear risk index.The application can achieve microsecond-level accurate synchronization of multi-screen display at the software level without external Genlock hardware, effectively eliminating the tearing phenomenon caused by heterogeneous screen clock drift and the periodic stutter caused by mixed refresh rate.

The invention discloses a multimedia informatization conference management method and system, and relates to the technical field of multimedia informatization conference management.The method comprises the steps that SHA256 hash calculation is carried out on extended display identification data blocks of downstream equipment before a conference, and then hash is carried out on a splicing result to obtain a topological fingerprint before the conference; converting the initial value of the number of the downstream devices of the repeats into binary vectors, performing bitwise exclusive or in sequence to obtain pre-meeting anchoring values, and constructing a topological shadow tree in combination with the mapping relation between the repeats and the downstream devices; marking a zero-topology window repetitor with the real-time downstream equipment number of 0 in the case, tracing a nearest sink node in a topological shadow tree to form a minimum influence domain, extracting an influenced display cluster identifier, and locally modifying a source cluster mapping matrix as a placeholder source; calculating an anchor value and a topological fingerprint, and verifying topological consistency through two dimensions of an anchor difference and a topological fingerprint Boolean quantity; after the conference, key data are integrated to be archived as conference management files, accurate conference topology management, efficient exception handling and problem tracing are achieved, and stable operation of the conference is guaranteed.

A sink device according to an embodiment of the present disclosure may comprise: a memory for storing extended display identification data (EDID); an external device interface for receiving a signal from a source device through a high-definition multimedia interface (HDMI) standard; and a controller, which transmits first EDID to the source device, receives a first video signal from the source device in response to the transmission of the first EDID, determines whether the resolution format of the received first video signal is a valid resolution format, acquires a pixel clock frequency on the basis of the first video signal if it is determined that the resolution format of the first video signal is not the valid resolution format, and determines to update the first EDID according to whether the acquired pixel clock frequency is within a tolerance range.

A multi-display apparatus comprising: a source device; a main display apparatus directly connected to the source device among a plurality of display apparatuses; and a sub-display apparatus not directly connected to the source device among the plurality of display apparatuses, wherein: the plurality of display apparatuses are connected to each other while forming a data channel; the main display apparatus obtains connection data between the plurality of display apparatuses through the data channel, determines horizontal and vertical connection structures on the basis of the connection data, converts preset extended display identification data (EDID) of the plurality of display apparatuses into multi-EDIDs on the basis of the horizontal and vertical connection structures, and transmits the multi-EDID to the source device; and the plurality of display apparatuses may receive a processed image signal generated by processing an image signal from the source device to correspond to the multi-EDID, and display an image on the basis of the processed image signal.

A method for automatically selecting extended display identification data (EDID) includes steps as follows. The extended display identification data of an external device is obtained through a conversion device; the conversion device is based on the extended display identification data of the external device to determine the version of a connection interface of the external device; the conversion device is based on the version of the connection interface of the external device to select a corresponding extended display identification data; the conversion device notifies a signal source device to obtain the corresponding extended display identification data.