11 results about "Media layer" patented technology

The application relates to a testing device and method for a multi-channel high-speed low-delay interconnection interface of a silicon medium layer. The device comprises a standard testing port for interactive testing instructions, an asynchronous bypass port for directly accessing IO ports of channels of a physical layer of the interconnection interface, a built-in self-test engine for realizing loopback testing and data checking between different layers, a redundant data channel for repairing a damaged data channel, and a delay chain testing circuit for testing functions and linearity of a delay chain. The device is used for embedding and distributing testing and repairing logics in the physical layer and the link layer, realizing internal testing control without an external controller, testing and rapidly screening a sample, and ensuring the performance of the sample.

The present application describes platform containing a dynamic multilayered media structure which is generated by aggregation of media pieces into a plurality of media layers. The platform allows users to interact with media layers of the dynamic multilayered media structure independently of one another. The platform further provides for a dynamic, customized media channel lineup and a user account that allows individual media pieces within the dynamic multilayered media structure to play across separate devices that are linked to the account. The user account allows for inputs including real-time controls over the media, interaction, preferences, adding additional media content, editing media into a condensed form, and curation options with the dynamic multilayered media structure.

The present application describes platform containing a dynamic multilayered media structure which is generated by aggregation of media pieces into a plurality of media layers. The platform allows users to interact with media layers of the dynamic multilayered media structure independently of one another. The platform further provides for a dynamic, customized media channel lineup and a user account that allows individual media pieces within the dynamic multilayered media structure to play across separate devices that are linked to the account. The user account allows for inputs including real-time controls over the media, interaction, preferences, adding additional media content, editing media into a condensed form, and curation options with the dynamic multilayered media structure.

The invention discloses a message hierarchical encryption method and system, and aims to provide differentiated encryption strategies, optimize resource use and improve security according to the sensitive degree of messages, the method comprises the following steps: establishing connection between a client and a server through WebSocket handshake, and establishing a secure channel on a TLS / SSL layer; the client and the server negotiate a shared key through an ECDH protocol and derive hierarchical session keys respectively, and the hierarchical session keys comprise a control layer key, a data layer key and a media layer key; the client and the server perform encryption and decryption by using the hierarchical session key according to the message type; the control layer key is used for encrypting and decrypting a control layer message, the data layer key is used for encrypting and decrypting a data layer message, and the media layer key is used for encrypting and decrypting a media layer message; the message adds a message type identifier and a key version identifier of the current hierarchical session key when encrypted.

This invention relates to the field of computer multimedia communication, and in particular to a WebRTC video conferencing system and media stream conversion method compatible with GB / T28181 devices. The system adopts a layered architecture, including a service layer, a STUN / TURN server, a signaling layer, and a media layer. The service layer provides service interfaces for WebRTC clients and stores service data. The STUN / TURN server is used to implement NAT traversal. The signaling layer includes a WebRTC signaling module, a signaling protocol conversion module, and a GB / T28181 signaling module. The media layer includes a WebRTC media module, a media transcoding module, a congestion control module, and a GB / T 28181 media module. This solution proposes the IGCC-A algorithm to reduce frequent jitter in the transmission rate caused by small fluctuations in network latency, and realizes the structure of a WebRTC video conferencing system that accesses GB28181 devices.

The invention provides a high-compatibility heterogeneous integration method, which comprises the following steps of: adopting a form-variable dielectric layer as a medium, stably combining a non-standard-size functional layer in any shape with a support substrate, performing heterogeneous integration with other functional layers, and finally removing the form-variable dielectric layer and the support substrate, thereby obtaining the high-compatibility heterogeneous integration method. Therefore, heterogeneous integration of unconventional-size materials which are difficult to integrate by a standard MEMS platform standard process is realized, and heterogeneous integration of special materials which are not compatible with the MEMS platform standard process is promoted.

The invention relates to the technical field of communication, and discloses an information transmission system and method.The information transmission system comprises a medium layer module and a signal conversion module, and when the signal conversion module receives a mode configuration signal, the signal conversion module is switched to a transmission mode corresponding to the mode configuration signal; the signal conversion module comprises a physical layer and a mode switching unit; the physical layer is in communication connection with the medium layer module and is used for receiving data output by the medium layer module; and the mode switching unit is respectively in communication connection with the medium layer module and the physical layer, and is used for determining data output from the physical layer to the medium layer module based on the current transmission mode and outputting the data to the medium layer module. Therefore, the mode switching unit is added to the data transmission between the medium layer module and the physical layer, the data consistent with the current transmission mode is output to the medium layer module, and the data is ensured to be transmitted according to the transmission mode corresponding to the currently switched architecture, so that the original architecture and the SERDES architecture are compatible on a hardware structure, and the data transmission efficiency is improved. And architecture switching can be carried out according to requirements.

The invention relates to the field of data storage scheduling, and discloses a remote education data intelligent scheduling and storage optimization system, which comprises a data preprocessing and topology construction module; the heterogeneous storage medium layer comprises physical storage equipment with multiple performance levels; the initial storage strategy module is connected with the data preprocessing and topology construction module and the heterogeneous storage medium layer; a cognitive state monitoring module; the storage recombination controller is connected with the cognitive state monitoring module and the heterogeneous storage medium layer; and the distribution scheduling engine is used for executing data prefetching and executing cache replacement based on the review urgency of the cache data block. And variable-length semantic granulation segmentation is performed on the media stream through the data preprocessing and topology construction module, and a differentiated initial storage strategy is implemented according to the topology centrality of the knowledge points, so that the effect of dynamically allocating storage resources according to the knowledge structure value is achieved.

The present application describes platform containing a dynamic multilayered media structure which is generated by aggregation of media pieces into a plurality of media layers. The platform allows users to interact with media layers of the dynamic multilayered media structure independently of one another. The platform further provides for a dynamic, customized media channel lineup and a user account that allows individual media pieces within the dynamic multilayered media structure to play across separate devices that are linked to the account. The user account allows for inputs including real-time controls over the media, interaction, preferences, adding additional media content, editing media into a condensed form, and curation options with the dynamic multilayered media structure.

The invention provides a high-density three-dimensional vertical structure memory and a preparation method thereof. The preparation method comprises the following steps: forming a word line structure in a stacking structure on a substrate; filling an insulating medium, and forming a through hole structure in the insulating medium at two sides of the word line structure; forming a storage medium layer in the through hole structure; and forming a top electrode layer in the through hole structure. Aiming at the bottleneck of a laminated hole etching process, the invention provides a scheme of only performing through hole processing in a single insulating medium to form a through hole array, and the etching precision and the yield are optimized by utilizing the material uniformity, so that the etching difficulty is greatly reduced; the storage density is doubled by optimizing the position of the bit line circuit and the efficient arrangement of the multiple layers of storage units; the high-density three-dimensional vertical structure memory provided by the invention is compatible with a plurality of storage media such as resistance change materials and phase change materials, and has the advantages of high-density integration and manufacturing stability. According to the method, an efficient solution is provided for high-density nonvolatile storage requirements in the fields of artificial intelligence, cloud computing and the like.

The application discloses a CRCN-based layered medium dielectric coefficient nondestructive detection method and system. First, the CycleGAN network is trained to suppress noise in a data set and enhance image target features. Secondly, a ResCBAMNet detection network is proposed, which is based on ResNet-18 and introduces a CBAM module in a residual block, and improves an activation function in the network to LeakyReLU. The network can classify and detect the dielectric coefficient of the layered medium. The simulation experiment results show that the CRCN model can realize fast and nondestructive detection of the dielectric coefficient of each layer medium, so as to judge the structural health state of each medium layer, and is suitable for engineering application.