135 results about "Media access" patented technology

The invention discloses an adaptive modulation anti-multipath unmanned aerial vehicle swarm communication method and system based on MIMO-OFDM, and relates to the technical field of wireless communication, and the method comprises the steps: receiving a down-conversion baseband; synchronization and compensation are carried out; removing a cyclic prefix and carrying out fast Fourier transform; estimating a channel and noise on the training and pilot frequency, and correcting a common phase; performing frequency domain equalization and soft decision, forward error correction and cyclic redundancy check according to the estimation to obtain a control parameter, decoding a payload according to the control parameter, and performing statistics to form a link quality indication; modulating coding, bandwidth and spatial mode, configuring mapping, power and weight, and packaging physical layer protocol data; carrier sensing conflict avoiding sending, confirmation and retry are adopted to generate media access statistics; and the routing selects the next-hop multi-hop forwarding according to the transmission quality, and performs end-to-end statistics and recharge. Through cooperation of hierarchical synchronization and phase correction with cyclic prefix and FFT, crosstalk is suppressed, channel noise scale optimization soft decision is robust, data decoupling is controlled, and end-to-end availability is improved through multi-hop self-healing recharge.

This disclosure provides methods, components, devices and systems for coordinated time division multiple access (C-TDMA) in Wi-Fi networks for partial bandwidth transmission opportunity (TXOP) sharing. Some aspects more specifically relate to coordinating TXOP sharing in time and frequency. In some examples, a first access point (AP) obtains a TXOP associated with a bandwidth, allocates a duration of the TXOP to a second AP, and selectively communicates with one or more stations (STAs) associated with the first AP via a first portion of the bandwidth within the duration of the TXOP. In other words, the first AP may selectively communicate with one or more STAs associated with the first AP within the duration of the TXOP that the first AP shared with the second AP. Various disclosed protocols and mechanisms further relate to using resources that would otherwise be unutilized within a framework of coordinated medium access.

Multi-Access Point, MAP, coordination is used to control secondary channel access of other BSSs when sharing a TXOP. A sharing AP transmits a MAP MU-RTS trigger frame reserving a TXOP and allocating the primary channel to its BSS and secondary channels to shared BSSs. The frame triggers a switching, at the shared AP and stations of the shared BSSs, from a primary channel access (PCA) scheme to a non-primary channel access scheme where medium access in the shared BSS is performed on the allocated secondary channel. The shared AP, once switched, transmits a CTS frame over the secondary channel and another CTS frame, repeating the allocation scheme, over the primary channel. Each shared BSS operates on its allocated secondary channel during the shared TXOP, independently to each other and to the sharing BSS operating on the primary channel. The stations switch back to the PCA scheme upon the TXOP ending.

Systems and methods for managing access to media content involve generating a media container for object-based media access by: generating data streams on a basis of objects of interest in a multimedia file such that each data stream is a segment of the multimedia file that corresponds to a representation of a respective object of interest; generating an encryption key of each data stream, each encryption key corresponding to a respective data stream; encrypting the data streams with the corresponding encryption key; generating an identifier for each encryption key; and generating a media container file by packaging the data streams and the encryption key identifiers.

Multi-Access Point, MAP, coordination is used to control secondary channel access of other basic service sets (BSS) when sharing a TXOP. A sharing AP transmits a MAP MU-RTS trigger frame reserving a TXOP and allocating the primary channel to its BSS and secondary channels to shared BSSs. The frame triggers a switching, at the shared AP and stations (STA) of the shared BSSs, from a primary channel access (PCA) scheme to a non-primary channel access scheme where medium access in the shared BSS is performed on the allocated secondary channel. The shared AP, once switched, transmits a clear-to-send (CTS) frame over the secondary channel and another CTS frame, repeating the allocation scheme, over the primary channel. Each shared BSS operates on its allocated secondary channel during the shared TXOP, independently to each other and to the sharing BSS operating on the primary channel. The stations switch back to the PCA scheme upon the TXOP ending. At a STA of a second BSS receive from a first AP managing a first BSS a control frame. In response to the control frame, switch from a PCA scheme to a non-primary channel access scheme.

An incarcerated individual communications and / or media access system may include a Virtual Private Network (VPN) secured personal incarcerated individual communication and / or media device and an incarcerated individual communications and / or media cloud access platform hosted by a computing cloud. The VPN secured personal incarcerated individual communication and / or media device includes an operating system incorporating a secured VPN as a (only) channel for the personal communication and / or media device to connect to any wireless carrier and a designation of a (n) (only) wireless carrier that the VPN secured incarcerated individual personal communication and / or media device is allowed to connect with and / or communicate through. The incarcerated individual communications and / or media cloud access platform receives communications terminated by the wireless carrier from, and to, the VPN secured personal incarcerated individual communication and / or media device and processes and / or controls the communications.

An example system-on-chip (SoC) device for a communication system includes a peripheral component interconnect express (PCIe) interface configured to receive data from a backhaul field programmable gate array (FPGA) of the communication system, and a producer port linked with a consumer port through direct memory access (DMA). Data received by the PCIe interface is assigned to the producer port. The device includes dual hardware media access controls (MACs) configured to consume the data assigned to the producer port, and at least one processor configured to supply the data to a wireless interface for transmission to another wireless communication device of the communication system at a frequency of at least sixty Gigahertz.

The invention discloses a collaborative medium management method and device between medium storage devices and a medium, and relates to the technical field of artificial intelligence and financial science and technology, and the method comprises the steps: responding to the medium access operation of each medium storage device in a target area range, and generating medium state description information matched with the medium access operation in real time; when the collaborative medium management condition is met, determining a target time interval matched with the collaborative medium management condition, and obtaining state description information of each target medium generated in the target time interval; and performing iterative processing by adopting a particle optimization algorithm according to the state description information of each target medium to obtain an ideal medium storage amount of each medium storage device in each time period, and determining a medium management strategy for each target medium storage device in the target area range by combining the current system time so as to update the storage state of each medium. And the management efficiency, the optimization pertinence, the accuracy and the collaborative management precision of the medium storage equipment in the target area are improved.

A disclosed example includes accessing computer-generated impression records, the computer-generated impression records based on network communications received at a server of a database proprietor from client devices, the computer-generated impression records indicative of accesses to media at the client devices; accessing self-reported demographic data and behavioral data from a database of the database proprietor, the self-reported demographic data and the behavioral data corresponding to user accounts registered with the database proprietor and associated with the client devices; comparing the self-reported demographic data with a probability distribution of higher-accuracy demographic data; determining different adjustments for corresponding ones of self-reported demographics of the self-reported demographic data based on the comparison; adjusting the corresponding ones of the self-reported demographics based on corresponding ones of the different adjustments to generate adjusted user demographic data; and assigning the adjusted user demographic data to corresponding ones of the computer-generated impression records.

Providing media power telemetry for virtual machines (VMs) in processor-based devices is disclosed herein. In one exemplary embodiment, a processor-based device provides a controller circuit comprising a power telemetry circuit, and a power management processor. The power telemetry circuit is configured to determine whether a media access request corresponding to a power telemetry event and directed to a media device is detected, and determine whether the media access request matches an event selection filter specified by an event selection control and status register (CSR) corresponding to the power telemetry event. If so, the power telemetry circuit increments a power telemetry counter corresponding to the power telemetry event by a relative power value associated with a media access request type of the media access request. The power management processor determines a power management operation based on the power telemetry counter corresponding to the power telemetry event, and applies the power management operation.

The invention provides a log interception control method and system and a vehicle, and the control method comprises the steps: responding to an external storage medium access device, and triggering a log interception process; reading a log configuration file pre-stored in an external storage medium, and enabling the system to enter a log to-be-intercepted state capable of responding to the voice instruction based on an analysis result of the log configuration file; when the log is in a to-be-intercepted state, receiving a control instruction of a user through voice interaction; and in response to the first voice instruction representing the start of interception, executing screening and storage operations on the target log data according to a rule defined in the log configuration file, and writing the target log data into an external storage medium. The problems that an existing in-vehicle log interception scheme is complex in operation, depends on wired connection and physical keys, is inconvenient to trigger, cannot be controlled in real time and is low in log classification automation degree are solved.

Multi-port Media Control Channel (MAC) with flexible data-path width. A multi-port receive (RX) MAC block includes multiple RX ports and a plurality of RX circuit blocks comprising an RX MAC pipeline for performing MAC Layer operations on RX data received at the RX ports. The RX circuit blocks are connected with variable-width datapath segments, and the RX MAC block is configured to implement a multi-port arbitration scheme such as a TDM (Time-Division Multiplexed) scheme under which RX data received at a given RX port are forwarded over the variable-width datapath segments using datapath widths associated with that RX port. A multi-port transmit (TX) MAC block implementing a TX MAC pipeline comprising TX circuit blocks connected with variable-width datapath segments is also provided. The RX and TX MAC blocks include CRC modules configured to calculate CRC values on input data received over datapaths having different widths.

The present disclosure provides methods, components, devices, and systems for ultra-high reliability techniques for coordinating medium access. More specifically, some aspects relate to access point (AP)-to-AP coordination via, for example, one or more management frames. In some implementations, a wireless communication device may coordinate timing information with one or more other APs, and may notify a set of stations (STAs) of the coordinated timing information, where a set of configured identifiers (IDs) may be used to distinguish which timing information is related to which AP, and notify the set of STAs of how the STAs are expected to resolve the coordinated timing information. Additionally or alternatively, a wireless communication device may exchange one or more common action frames to facilitate AP-to-AP coordination, where such one or more common action frames may specifically be associated with providing information related to coordinated medium access. In addition, the described techniques may be applicable to a multi-hop relay topology.

The invention discloses an RTSP streaming media intelligent cache proxy method and system for an embedded system, and relates to the field of vehicle streaming media control, and the method comprises the steps: deploying an RTSP proxy and a secondary distribution service in a client embedded device; the connection management module initiates an RTSP session establishment request to an RTSP server of the source-end embedded device, the connection management module and the RTSP server of the source-end embedded device establish and maintain an uplink RTSP session, and coded video data received through the uplink RTSP session is written into a shared cache pool; a virtual RTSP service address is provided on a local network of the client embedded device, and an application in the client embedded device initiates an RTSP streaming media access request to the virtual RTSP service address; and receiving an access request of an application, identifying a priority rule demand of resource allocation, reading corresponding video data from the shared cache pool, establishing at least two data flow queues according to the priority rule demand of resource allocation, and secondarily distributing the video data to each application.

The invention provides a quantum key storage and use method based on a mobile terminal, after a security medium is accessed to a charging terminal, the security medium generates a medium private key and a medium public key, the charging terminal generates a charging request and sends the charging request to a secret service platform, and the secret service platform generates to-be-charged data and sends the to-be-charged data to the charging terminal. The security medium stores a first key ciphertext and a charging key ciphertext, after the security medium accesses the use terminal, the security medium transencrypts the first key ciphertext based on the complete public key to obtain a second key ciphertext, stores the second key ciphertext and the charging key ciphertext in a local database, and after the security medium is moved out, stores the charging key ciphertext in the local database; and the using terminal obtains the first private key, the second key ciphertext and the charging key ciphertext, negotiates with the collaborative server to decrypt the charging key ciphertext to obtain the charging key, and performs session encryption based on the session key and the charging key. According to the application, through key charging, key transmission and key use processes, the user experience is improved while the intrusion risk is prevented.

The application provides a display device, a server and a deduplication method of media data. The method comprises the following steps: in response to an access event of a multi-space page, sending a media access request to a server and receiving page configuration parameters and pushed media fed back by the server according to the media access request; configuring the multi-space page according to the page configuration parameters; in response to a click event of a classification time period option and / or a label option, obtaining a target classification time period option and a target label option and determining target pushed media in the pushed media according to the target classification time period option and the target label option; determining target display media according to the target pushed media and displayed media; and controlling a display to display the target display media in the multi-space page. The method can perform deduplication on to-be-displayed media data according to locally stored displayed media data under the same label, thereby solving the problem of repeated display of media data under the same label option in different classification time periods in the multi-space page.

Disclosed are a method and a device for transmitting or receiving feedback information related to a multi-link device in a wireless LAN system. The method according to an aspect of the present disclosure may comprise the steps in which: a first station (STA) affiliated with a first multi-link device (MLD) receives a first frame from a second STA affiliated with a second MLD; and the first STA transmits, to the second STA, a second frame including information about one or more links of the first MLD. The second frame may be transmitted on a first link. The information about the one or more links may be related to one or both of feedback information, about one or more other STAs affiliated with the first MLD, and medium access recovery information.

The subject disclosure provides systems and methods for improved medium access for wireless communication. A wireless access point, on contending for and gaining medium access, may share a time and / or bandwidth channel resource with one or more other wireless access points and / or one or more client devices. The wireless access point can efficiently share the channel resource using buffer status information computed by the wireless access point and / or additional buffer status information computed by the one or more other wireless access points. In one or more implementations, latency information for buffered data can be provided from a client device to a wireless access point and / or from a satellite wireless access point to a control wireless access point.

A method for parsing a scene description document, including: determining an index value of a target haptic object description module; obtaining the target haptic object description module from a moving picture experts group (MPEG) haptic description module in the scene description document according to the index value of the target haptic object description module; and obtaining description information of a haptic media accessor according to the target haptic object description module, where the haptic media accessor is an accessor configured to access haptic rendering data of a haptic media file declared in an MPEG media description module.

A method and system for wireless communication in a wireless local area network (WLAN) are disclosed. The method includes obtaining, by a non-access point (non-AP) station (STA), access to a wireless medium based on a contention-based channel access procedure; initiating, by the non-AP STA, upon obtaining access to the wireless medium, a transmit opportunity (TXOP); transmitting, by the non-AP STA, a control frame to a second STA during the TXOP; and receiving, by the non-AP STA, one or more physical layer protocol data units (PPDUs) from the second STA in accordance with scheduling information in the control frame.

The embodiment of the invention provides a storage medium access method and device, and the method comprises the steps that a first processor core determines N first access requests, the first access requests are access requests which are generated by the first processor core and are not executed, and the first access requests are used for requesting to access a storage area in a first access range of a storage medium; the first processor core determines a target access request from the N first access requests and executes the target access request, the target access request being a first access request independent of the second access request, the second access request is generated earlier than the depended first access request, and a second access range corresponding to the second access request is overlapped with a first access range corresponding to the depended first access request. The first processor core is any processor core in the multi-core processor, and the plurality of processor cores do not need to compete for an exclusive lock of a storage medium and can execute respective first access requests in parallel, so that the concurrency capability of the multi-core processor can be improved.

The application discloses a data storage method, relates to the technical field of data storage, and comprises the following steps: dividing target data into first type data, second type data and third type data according to the access probability of the target data from low to high; the first type data has a low access frequency, and loss of the first type data has a small influence on stability, so that the first type data can be encoded, storage cost is saved, and stability is less reduced; the second type data has a medium access frequency, and the second type data is encoded by using a maximum distance separable code to ensure repair and high stability and to increase storage cost little; and the third type data has a high access frequency, and the third type data is encoded by using a target encoding mode to reduce repair bandwidth, ensure high stability and increase storage cost of unit data volume much. Since the third type data volume is not high, the overall storage cost is increased little, and the problem that a storage management method in the prior art is difficult to balance system stability and storage cost is solved.

The embodiment of the invention provides a three-dimensional scene rendering method and device, and relates to the technical field of video processing. Comprising the steps of obtaining a scene description file of a to-be-rendered three-dimensional scene; according to the scene description file, obtaining description information of a face mark point of the target digital person and description information of a first media file, wherein the first media file is a media file comprising index information and position coordinates of the face mark point; sending the description information of the face mark point and the description information of the first media file to a media access function; and reading the dynamic three-dimensional model of the target digital person from a buffer corresponding to the target digital person, and rendering the to-be-rendered three-dimensional scene based on the dynamic three-dimensional model of the target digital person. Some embodiments of the invention are used for solving the problem that an immersive media scene description framework cannot be used for realizing digital human animation and related processing based on the face mark points because the scene description file does not have related information for declaring the face mark points.

Media item(s) stored on an image capture device are identified for sharing. The image capture device runs a web server that hosts the media item(s) and runs a media access webpage for other computing device(s) to access the hosted media item(s). The image capture device creates a communication network having a network name and a network password, generates machine-readable optical code(s) that convey the network name and the network password of the communication network, and presents the machine-readable optical code(s) on an electronic display. A computing device that captures an image including the machine-readable optical code(s) connects to the communication network using the network name and the network password of the communication network conveyed by the machine-readable optical code(s). The media access webpage is provided to the computing device connected to the communication network, which enables a user of the computing device to access the hosted media item(s).

A system includes a mobile device and a receiving device associated with a media access device. The receiving device obtains from the mobile device during a process in which the mobile device and the receiving device are paired a first identifier that uniquely identifies the mobile device. The first identifier is then associated within the receiving device to a universal advertising identifier. Thereafter, when the mobile device is determined to be in proximity to the receiving device, at least the universal advertising identifier is caused to be provided to a remote server. In this manner, the remote server can track at least a presence of a user with the media access device.

To provide a method and apparatus for enabling WLAN devices to perform HARQ scheduling and media access in 6GHz bands, as well as longer range HARQ transmissions.SOLUTION: A method for use in a station (STA) comprises receiving low rate range extension (LRRE) information from an AP and determining whether a first condition is satisfied. The method includes transmitting a mode change request to the AP to change the mode of operation to an LRRE hybrid automatic repeat request (HARQ) mode on a condition that a first condition is met, receiving a response to the mode change request from the AP, and communicating with the AP using a plurality of physical layer convergence procedure (PLCP) protocol data units (PPDUs). Each of the plurality of PPDUs includes at least one field enabling transmission between the STA and the AP under a first condition, and an LRREHARQ mode indication.SELECTED DRAWING: Figure 8A