170 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.

The invention discloses a BMC intrusion protection method and device, a BMC and computer equipment. The method is applied to the BMC in the computer equipment. The BMC comprises a service module and a security detection module which are in communication isolation, and storage media accessed by the service module and the security detection module are isolated. The business module is used for providing a management function for parts in the computer equipment, and the security detection module is used for implementing security detection on the BMC. The method comprises the steps that the security detection module obtains data stored in the storage medium associated with the service module, analyzes the security situation of the data sensing service module, and obtains a security detection result. And when the security detection result indicates that the BMC suffers from the APT attack, restarting the BMC in a degraded starting mode. Through a deep defense scheme, namely on the basis of defense, intrusion detection capability is added to the BMC, a dynamic defense chain of defense, detection, degradation and recovery is formed, the APT attack resisting capability of the BMC is improved, and the BMC is ensured to be safe and credible.

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.

Disclosed are a BMC intrusion protection method and apparatus, and a BMC and a computer device. The method is applied to a BMC in a computer device. The BMC comprises a service module and a security detection module, which are in communication isolation, wherein a storage medium accessed by the service module is isolated from a storage medium accessed by the security detection module; and the service module is used for providing a management function for components in a computer device, and the security detection module is used for carrying out security detection on the BMC. The method comprises: a security detection module acquiring data stored in a storage medium associated with a service module; analyzing the data and sensing the security situation of the service module, so as to obtain a security detection result; and when the security detection result indicates that a BMC has been subjected to an APT attack, restarting the BMC in a degraded start mode. A defense-in-depth scheme is used, namely, an intrusion detection capability has been added to a BMC on the basis of defense, so that a dynamic defense chain of defense, detection, degradation and recovery is formed, thereby enhancing the capability of the BMC to resist APT attacks and ensuring the security and trustworthiness of the BMC.

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.

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.

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.

A transactional method and system of incentivizing task performance using token-based exchange for digital media access. The system and method are configured to reward a person with electronic tokens for tasks that are performed and verified by the system. These tokens can then be exchanged by the user for access to desired digital media. Verification can involve the use of natural language processing and image comparison algorithms to determine whether a particular task has been successfully completed.

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.

The present application provides a method and system for implementing 5G ultra-high-definition video ringback tone, wherein the method includes: when an initial invitation is initiated between user terminals through a voice signaling channel; the video ringback tone control system negotiates data bearer between the two user terminals according to the initial invitation; when the negotiation is successful, a target DC is established on a preset bearer; video ringback tone media is negotiated with the target terminal and a video ringback tone media playback address is sent; the target terminal initiates a media access request to the target CDN node according to the video ringback tone media playback address; the target CDN node sends the cached video ringback tone file to the target terminal according to the media access request and through the target DC. The present application transmits ringback tone data by establishing a DC on a dedicated bearer and deploying media resources through an edge CDN, thereby improving transmission speed and reducing latency, and solving the problem of being unable to provide users with ultra-high-definition video and richer real-time interactive services.

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.

Methods, apparatus, systems, and articles of manufacture to monitor media are disclosed. An example apparatus includes first means for performing a first mapping of a first media identifier and timestamp to a second media identifier in a look-up table (LUT), the first media identifier and timestamp based on media obtained from a server, the first media identifier to identify the media, means for determining a third media identifier and a second timestamp based on media monitoring information (MMI) obtained from the server, the MMI obtained from the server in response to an access of the media identified by the third media identifier by a media device, second means for performing a second mapping of the third media identifier and the second timestamp to the first media identifier and timestamp in the LUT, and means for crediting access of the media to the media device based on the second mapping.

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.

This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media for one or more wireless devices to gain access to a wireless channel of a radio frequency spectrum band. In some aspects, a recurring coordinated medium interval is defined in the time domain and associated with the wireless channel. The coordinated medium interval includes a first time period, which may be referred to as a common reservation window, and a second time period, which may be referred to as a scheduled medium access window. During the first time period, access points (APs) attempting to gain access to the wireless channel may transmit reservation signals to reserve one or more scheduled service periods within the second time period of the same coordinated medium interval. The scheduled service periods reserved by an individual AP may be used for UL / DL communications between that AP and its associated stations (STAs).