38results about How to "Maximize data transfer rate" patented technology

Disclosed herein are hub devices for a machine-to-machine (M2M) communications network that enables multiple communication modes for data source nodes, the hub comprising a processor, a local connectivity system configured to communicate data with the data source nodes via an interface, a data processing and caching system comprising a local memory and configured to receive and store user-defined data routing and processing functions, prioritize the data based on the user-defined functions; and route the prioritized data to the local memory for storage or to the data transmission system for immediate transmission based on the priority, and a data transmission system configured to dynamically assign an M2M upload mechanism to the routed data selected from: a real-time transmission mechanism, a fixed interval mechanism, a data backhaul mechanism, and a user pull mechanism; and transmit the data to a network backhaul link for delivery to a host point.

The invention relates to a method and an apparatus for distortion compensation of signals transmitted via a bidirectional link between a client device and a host device, said method comprising the steps of performing a post-distortion-compensation for an upstream signal received by the host device on said bidirectional link by adjusting post-compensation parameters of a post-compensation unit of said host device and transforming the adjusted post-compensation parameters into pre-compensation parameters of a pre-compensation unit of said host device which performs a pre-distortion compensation for a downstream signal transmitted by said host device via said bidirectional link to said client device.

A method for writing file data from client to server which comprises writing file data from a client to a server, wherein the client issues to the server a file transfer proposal that includes the names of a plurality of files to be transferred and attributes of each of the plurality of files. The server determines optimum memory locations for the plurality of files and optimum sequence and size of data transfer and issues to the client a request to transfer the plurality of files in a sequence that is optimized for memory location and minimal number of data transfers, thereby maximizing data transfer rate from the client to the server. Client computer, server computer, and network apparatus that are configured to implement the method are also disclosed.

A method and apparatus of operating a Universal Serial Bus device to determine if a host sending Network Control Model Transfer Blocks (NTBs) is compliant with end of transfer rules for NTBs and to then determine appropriate operations at the device to complete transactions with a non-compliant host.

The present invention provides a method and an apparatus for detecting a communication channel in whose frequency band radio signals are transmitted by different radio signal sources inside a cabin. In this case a wide band antenna receives the radio signals transmitted inside the cabin. Different demodulators are provided, each of which demodulate the radio signals received by the wide band antenna within an associated frequency range of the demodulator. A configuration logic establishes whether, in a frequency band within a demodulated frequency range, radio signals are being transmitted simultaneously by different radio signal sources. In the case of impermissible signal transmissions of a radio signal source, e.g. when a non-safety-relevant system transmits signals in the same frequency band of a safety-relevant system in the same frequency bands of a safety-relevant system, the non-safety-relevant system is reconfigured by the configuration logic and an alarm or warning signal is generated as an indication of the impermissible condition.

A computer data transmission system is provided with proportional-integral-derivative (PID) control over a data transmission rate so as to maximize use of available bandwidth of a datagram-based network. A data channel and a separate feedback channel are established between the sender and receiver units of the system. The sender unit coupled to the data and feedback channels sends datagrams over the data channel to the receiver continuously until a source of data is exhausted or paused by the receiver unit. The receiver unit sends acknowledgment messages over the feedback channel to the sender unit at predetermined intervals. A PID controller in the sender unit uses the information provided in the acknowledgment messages to track unsuccessfully transmitted datagrams and to adapt the data transmission rate to any changing network transfer conditions. In particular, the rate of datagram loss may be used as a PID process variable to control an inter-datagram delay of the sender. There may also be absolute speed and transmission rate acceleration / deceleration limits constraining the PID control. PID control may also be adapted for data compression control, datagram block sizes, and degree of redundancy in the datagrams sent.

The flexible data transmission system based on the intelligent collaborative network according to the present invention includes a resource management unit and a network component unit. The resource management unit includes a network state perception module, a network state measurement module and a flexible transmission module. The flexible transmission module is based on the network state perception module. The obtained network topology status and network resource update status, as well as the maximum available bandwidth and delay information of the network status link measured by the network status measurement module, calculate the K shortest transmission paths, and determine the optimal transmission path. Under the centralized and unified control of the intelligent collaborative network control plane, the present invention perceives the network status and network component behavior, and combines parameters such as routing hops, remaining bandwidth, and link delay to determine the optimal transmission path to meet the dynamics of service resources. Adaptation and transmission, improve data transmission reliability, network throughput, resource utilization, link load balancing, etc. to make up for the shortcomings of the shortest route method.

Disclosed are an uplink resource allocation method and a cognitive small cell network system performing the method. In the method, a small cell manager collects an access request from a small cell user and forms a preference relationship for each small cell user. Then, sub-channel-specific transmission power for providing a maximum data transmission rate at the time of uplink transmission is calculated and the calculated sub-channel-specific transmission power information is transferred to the small cell user. Meanwhile, the small cell user forms all possible sub-channel-specific preference relations and thereafter, transmits the access request for each sub-channel having a maximum preference relationship to the small cell manager. Thereafter, the small cell user performs power allocation for each access-determined sub-channel by using the transmission power information transferred from the small cell manager and performs data transmission through the access-determined sub-channel by using the allocated power.

An antenna assembly in a vehicle is provided. The antenna assembly includes a first plane including a first edge and a second edge extending in parallel to each other in a first direction, a second plane spaced apart from the first plane that overlaps the first plane and including a third edge extending along the first edge, and a fourth edge extending along the second edge, a non-conductive layer interposed between the first plane and the second plane, and a plurality of wireless communication circuits electrically connected to the antenna assembly, wherein the first conductive pattern and the second conductive pattern are positioned diagonally at opposing corners with each other when viewed from above the first plane, and wherein the third conductive pattern and the fourth conductive pattern are positioned diagonally against each other without overlapping with the first and second conductive patterns, when viewed from above the first plane.

The disclosure provides detection of visible light communication sources over a high dynamic range. A visible light communication (VLC) receiver captures frames of a scene with a camera to detect flashing light signals from a VLC transmitter such as an array of LEDs. The method assembles an enhanced dynamic range image sequence from the frames. At least one VLC source is detected in the enhanced sequence, wherein the source occupies a respective subwindow within the scene. An imaging exposure such as the exposure time used for capturing images at the subwindow is optimized according to a brightness of the respective VLC source. Then a plurality of subwindow images are captured using the optimized exposure. VLC data visible in the subwindow images is then decoded.