3125 results about "Data transmission" patented technology

A computer data signal embodied in a propagation medium is provided. The signal enables a variable number of data transfers and includes an initial connection source code segment and a data transfer source code segment. The initial connection source code segment establishes a connection between at least two devices via predetermined listening ports, with at least one predetermined listening port residing within each device. The initial connection source code segment also dynamically assigns a first data port within a first device, and transmits the address of the first data port to a remaining device via the predetermined listening ports. The data transfer source code segment is for each of the variable number of data transfer operations. The data transfer source code segment dynamically assigns a corresponding second data port within the remaining device and transfers data between the connected devices via the data ports so that the data is substantially simultaneously transferred between a variable number of devices via the data ports. Each pair of first and second data ports is established in response to each listening port connection.

A hand-held mobile personal computing and communications device offers full operating system functionality and performance of modern laptops and desktop personal computers, along with seamless networking and session and application persistence for supporting voice, video and data communications. The device uses an ultra low voltage processor and ample low power mass storage for effectively running complete versions of modern operating systems and associated applications with extended battery life. The device also utilizes modular peripherals to extend battery life and increase the effectiveness of the overall system. The device includes multiple broadband wireless communications technologies along with integrated cellular communication technologies for supporting real-time voice, video and data transmission. Various processes are provided for managing connectivity and communications.

One embodiment of the invention provides a method and apparatus for remotely managing data in a network system comprising at least one mobile device (e.g. a PDA, cellular phone, two-way pager, or mobile computer) and a least one server computer connected via an interconnection fabric, wherein the mobile device is registered with the server and configured to issue commands to a bot service using electronic mail messages or some other viable data transmission mechanism. The bot service responds to the commands by interfacing with the server computer to perform the requested action on behalf of the mobile device.

An input/output processor provides device virtualization "on-board" through the use of a dedicated IO cache memory. A computer system includes at least one host processor and associated main memory each with access to a system bus. Each input/output processor is also connected to the system bus through an expansion bus. IO adapters within the input/output processor each connect at least one storage device to the expansion bus. Also connected to the expansion bus is the cache memory and a control logic. The control logic receives a data transfer request from a requesting host processor. The data transfer request is mapped to a cache device object. The cache device object has associated data maintained in the cache memory. If any storage device is required for the data transfer, the data transfer request is mapped to the storage device capable of servicing the request. A location in cache memory is determined based on the mapped cache device object. The data transfer is performed based on the location and, if needed, the determined storage devices. This provides the host computer with a virtual view of the storage devices.

A flash memory device includes a storage area having a main memory portion and a cache memory portion storing at least one bit per cell less than the main memory portion; and a controller that manages data transfer between the cache memory portion and the main memory portion according to at least one caching command received from a host. The management of data transfer, by the controller, includes transferring new data from the host to the cache memory portion, copying the data from the cache memory portion to the main memory portion and controlling (enabling/disabling) the scheduling of cache cleaning operations.

A network monitoring device which monitors a network in which data is transmitted through relays, includes a monitoring frequency recording unit (111) which records monitoring frequencies for monitoring transmission statuses of the relays, a selection probability generating unit (112) which generates selection probability information which is probability values for the relays, a monitoring object determining unit (113) which determines, according to the monitoring frequency and the selection probability information, a relay the transmission status of which is to be monitored, a transmission status obtaining unit (106) which obtains transmission status information indicating a transmission status on the relay determined, a transmission status recording unit (107) which records the transmission status information, an activation level calculating unit (109) which calculates, using the transmission status information, activation level indicating suitability of the monitoring on the transmission statuses of the relays, and a monitoring frequency updating unit (110) which updates, based on the activation level, the monitoring frequency, and the network monitoring device detects the change in throughput on a data transmission path highly responsively.

An apparatus and method is provided to shield contactless portable electronic consumer devices such as radio frequency identification devices (RFID), tokens, mini-cards, key fobs, cellular phones, smartcards, etc. from wireless interrogation. In one embodiment, a contactless portable consumer device which includes a first antenna is shielded from unauthorized wireless interrogation with a radio frequency (RF) shield. The RF shield includes electrically conductive, non-ferromagnetic material and is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna.

A method for a data transmission with ARQ protocol using multicast groups such as GSM, GPRS or UMTS in a mobile communication system is described. Data is transmitted in data blocks (PDU) from a transmitter (T) to a plurality of receivers (R1-RM), said data blocks (PDU) being identifiable by an identification (e.g. a sequence number). The receivers (R1-RM) send status indications to the transmitter (T) whether a data block (PDU) is correctly received. The transmitter (T) is adapted to perform retransmissions according to the status indications and has a transmission window comprising the transmission status for the data blocks (PDU) according to their identification. In the method, a synchronization to the transmitter (T) is performed for at least one first of said receivers (Ri), wherein a range of identifications of transmitted data block (PDU) is selected in said synchronization. The transmitter (T) deletes the transmission status for the selected range of identifications from the transmitter window and the first receiver (Ri) stops sending status indications for the data blocks (PDU) corresponding to the selected range of identifications. In addition, a transmitter and a computer program implementing the method are described. As an example the transmitter can be a RNC extending the RLC and MAC-HSPDA protocols standardized by 3GPP for obtaining efficient and reliable point-to-multipoint radio links.

A system and method for unidirectionally or bi-directionally communicating information and data to and from an electronic module housed within a cordless power tool, over power terminals of the cordless power tool, while a battery pack of the tool is removed from the tool. A data transfer device is connected to at least one power terminal of the tool in place of the battery pack. The power terminal is also used for electrically connecting the battery pack to the tool during normal operation of the tool. A voltage supplied by the data transfer device to the tool is sequentially varied between a first level and a second level, in accordance with a predetermined communications protocol, to transmit data from electronic module of the tool to the data transfer device. A voltage signal applied to the electronic module of the tool is sequentially shifted between a first voltage and a second voltage to transmit data from the data transfer device to the tool. Thus, data can be transmitted between the tool and the data transfer device without requiring disassembly of the tool.

A system consists of remote identification tag (in the form of wristband) for personnel who must undergo hand hygiene frequently during a day's work, programmed soap and rinse-free disinfectant dispensers, entry-exit sensors for controlled access areas and data transfer stations is used to monitor and record every handwashing procedure along with its thoroughness as well as every hand cleaning event with rinse-free disinfectant. The system will further prompt each worker's identification tag at an appropriate place to examine its record to see whether a hand hygiene procedure is required before proceeding to his/her next task. The recorded data with time-date of each event will be transferred to a central computer for statistical analysis and presentation as a daily and/or periodic hand hygiene compliance report on each staff, department, shift and the entire institution.

Disclosed are methods for managing a power in a wireless network communication. One of the methods provides checking whether information on a request for a mode change is received for a prescribed channel time in a manner that a device configuring a network enters a power save mode in the course of not performing data transmission/reception and that a modem enters an awake state from a sleep state for the prescribed channel time. And, the prescribed channel time is determined to correspond to a time for transmitting a beacon. According to a preferred embodiment, a modem of a device in a power save mode enters an awake state for a channel time period for broadcasting a beacon and then checks whether information on a power management mode change is received. If the information does not exist, a sleep state is reentered. If the power management mode change (PMMC) information is received, a power is managed by performing data transmission/reception in a manner of switching to a normal mode.

A system monitors dynamic forces between bearing surfaces. Based on sensed data, the system may model the forces on the bearing surfaces, analyze these forces, store data relating to these forces, and/or transmit data to an external data gathering device. The system includes a first body piece and a second body piece which mate together. The first and second body pieces comprise bearing surfaces that contact a material that may exert a force. A protrusion, such as a pole, post, or beam, extends from first body piece's bearing surface. At least one sensor is disposed on a pole. The at least one sensor detects a mechanical motion of the pole resulting from a force imposed on the body pieces, and generates data indicative of this force. A computer communicates with the at least one sensor and processes the sensed and/or modeled data.

A serial advanced technology attachment (SATA) storage device supports an SATA protocol that provides for high data transfer speed. The storage device is for connecting to an SATA cable, and includes at least one non-volatile semiconductor memory device for storing data therein; an SATA adapter, connected to the SATA cable, for transferring/receiving data signals to/from the SATA cable; a memory controller for controlling the non-volatile semiconductor memory device in response to data signals transferred from the SATA adapter; and an SATA device controller, connected between the SATA adapter and the memory controller, for interfacing transmitted/received data signals between the SATA adapter and the memory controller.

A multi-carrier transmission system has a plurality of transceivers, each having a receiver and a transmitter. Data is transmitted between the transceivers by modulating the data onto a multiplicity of carrier waves in the form of multi-bit symbols, wherein each carrier wave constitutes a channel, and wherein the number of bits per symbol (the bit loading), varies between channels and, within a channel, with time, so that each channel has associated therewith a bit loading parameter. In operation, the multi-carrier system is adapted to synchronously update, at the transceivers, the bit loading parameters associated with each channel by transmission of data over a control channel, in that the control channel is established, at system start-up, on a predetermined one of the multiplicity of carrier waves whose identity is known to the transceivers, and in that the control channel is, after start-up, changed from the predetermined channel to a further channel, selected by the first transceiver on the basis of channel characteristics.

A method of assigning transmission data rate in a multi-channel communication system based upon a comparison between projected transmitter power output for transmission at a selected data rate, and the maximum transmitter power capability. Relative power requirements for high and low processing gain channels are stored in a LUT in memory, for a variety of data transmission rates. By accessing the LUT, the relative power required for transmission over a low processing gain channel at a selected data rate can be determined. This power is then added to the current output power required by active high processing gain channels to determine the projected output power required once the low processing gain, or data, channel is brought online at the selected data rate. Data rate is increased or decreased until the projected output power is within a pre-selected transmitter output power tolerance, then that data rate is proposed to the receiver.

A method and apparatus are provided for implementing data management with a data collection computer system to aid analysis and treatment. A serial port is monitored to detect the connection of a meter. When a meter connection is identified, patient data is automatically downloaded from the meter to the data collection computer system. Then the patient data or one or more selected reports generated from the patient data are printed. The patient data is downloaded from the meter and printed, with no user intervention required. Reports to be generated and printed are selected in a setup mode and stored. After the patient data is downloaded from the meter, communication with the meter is continued until either the meter is turned off, the cable is disconnected, or the meter automatically shuts itself off after a specific amount of inactivity.

The invention discloses a distributed database synchronization system which comprises database nodes and a management node, wherein the database nodes outwards provide distributed database access, updating and inquiry services on the basis of Web services; all the database nodes have no master-slave difference, and are independently in charge of providing distributed database services; all the database nodes have no direct relationships and periodically obtain a synchronization configuration table and a network member configuration table from the management node, and establish a synchronization relationship with other database nodes; and a Web-service-based synchronization module is adopted in all the database nodes, the traditional database is encapsulated by using the synchronization module for providing one group of API (Application Program Interface) function for the outside. Data transmission is carried out by using the Web-service-based SOAP (Simple Object Access Protocol). The distributed database synchronization system can adapt to various complex heterogeneous networks, and can be used for solving the problems of incompatibility and incapability of mutual synchronization of data among various traditional databases.

The invention provides an uplink scheduling method as well as a terminal and a base station. The uplink scheduling method comprises the steps: detecting whether a non-authorized carrier is occupied or not by the terminal after the terminal receives a first uplink scheduling instruction transmitted by the base station, and executing the first uplink scheduling instruction by the terminal when the non-authorized carrier is not occupied, so only when the non-authorized carrier is idle, the terminal can execute the instruction for utilizing the non-authorized carrier to transmit the uplink data; or detecting whether the non-authorized carrier is occupied by virtue of the terminal to obtain a detection result, transmitting the detection result to the base station, transmitting a first uplink scheduling instruction to the terminal by the base station when the detection result indicates that the non-authorized carrier is not occupied, wherein the first uplink scheduling instruction is used for instructing the terminal to utilize the non-authorized carrier to transmit the uplink data, so only when the non-authorized carrier is idle, the base station can transmit the uplink scheduling instruction for utilizing the non-authorized carrier to transmit the uplink data, therefore, the failure in transmission of the uplink data caused by the occupation the non-authorized carrier can be avoided.

The invention provides an electric energy collecting and running management system on the basis of a station area concentrative service terminal, and a method thereof. The electric energy collecting and running management system is provided with a master system, a station area concentrative service terminal, an electric energy meter collector, a station area electric energy meter and a resident electric energy meter; the master system is in charge for services such as data collecting, processing, managing and analysing, output and the like; the running state of the system is monitored and undated; two communication channels such as GPRS or CDMA and RS232 are used between the master system and the station area concentrative service terminal; the station area concentrative terminal has the functions of distribution transform monitoring, electric usage site management, meter concentrator meter reading and the like; the downlink selects a RF narrowband wireless radio frequency data transmission/power carrier/RS483 interface to be communicated with the electric energy meter collector; meter reading task is sent down to the electric energy meter collector; the terminal collects the electric meter information read by various collectors and analyses all electric meter information; and the uplink transmits all data to the master system by the GPRS/CDMA channels.

A method for communicating data, such as audio/video (AV) data, over plural channels involves selecting data and encryption information, and encrypting the data with the encryption information to thereby produce encrypted data. The encryption information is broken into portions. The encrypted data is communicated by way of at least one of the plural channels, and at least some portions of the encryption information are communicated over at least one channel other than that one over which the encrypted data is communicated. In a more general case, the encrypted data is sent over one channel, and the encryption information is divided and sent over several other channels.

A method and apparatus for allocating resources and signaling the allocated resources in an FDMA communication system where different frequency resources are allocated to different UEs for data transmission are provided, in which at least one of subbands mapped to subcarrier sets in a frequency domain is allocated to a UE, the subband index of each of the subbands being a BRO representation of the binary value of an offset indicating the position of a first subcarrier in a subcarrier set corresponding to the each subband, resource allocation information indicating the allocated at least one subband is sent to the UE, and one of data transmission and reception to and from the UE is performed in at least one subcarrier set corresponding to the at least one subband indicated by the resource allocation information.

A presentation system is disclosed for synchronizing a performance of a plurality of presentation content portions at a network node, wherein, e.g., when two such content portions are to be presented concurrently at the network node, at least one is delayed until the other such portion can be presented concurrently therewith. That is, these two portions may be received by the network node at times sufficiently far apart so that the earlier received content portion must have its presentation appropriately delayed in order to be presented concurrently with the second content portion. In one embodiment, the content portions are transmitted via at least a portion of the Internet to a plurality of network nodes, wherein the presentation system can distribute the presentation content data to the network nodes via a plurality of network routes and presentation formats. In particular, a first portion of the content data may be provided as slides in, e.g., HTML, while a second portion of the content data may be provided as an audio/video stream. Additionally, the present invention can provide various portions of the content data from a plurality of network server nodes, and during a performance of the presentation, the presentation receiving network nodes can determine a particular variation of the presentation to retrieve from the network server nodes. In particular, the retrieval of presentation data depends upon the transmission characteristics of the network such as data transmission rate. Thus, if a low transmission data rate is detected at a first network node, presentation elements of a reduced size can be retrieved. Alternatively, if a higher transmission rate is detected at a second network node, presentation elements of greater size (and corresponding enhanced quality of presentation) can be retrieved. Thus, within a single performance, network nodes with varying available network bandwidths can synchronously and simultaneously provide the presentation.

Processing of packet data in a communication system supporting at least packet data transfer involves the following. Packet data is received from a source. It is determined, based on the received packet data, whether there is anomalous behaviour of the packet data source. Data transmission resources for a communications device are limited in response to determining anomalous behaviour of the source, and transmission of packet data for the communications device is provided using the limited transmission resources. The communications device is either the source or a destination of at least part of the packet data received from the source. In the communication system, access to a set of services from the communications device may furthermore be blocked.

Techniques to select a suitable transmission mode for a data transmission in a multi channel communication system with multiple spatial channels having varying SNRs are presented in this disclosure. For certain embodiments, a closed-loop technique may be applied, in which back-off factors used to calculate an effective SNR value fed back to a transmitter are adjusted. An open-loop rate control scheme is also presented in which a transmitter may select a data rate and number of streams based on whether transmitted packets are received in error at a receiver.

An improved digital capacitive isolation barrier system is provided that is suitable for use in a telephone or modem where the locally powered circuits must be effectively isolated from the public telephone system, while permitting data transfer across the barrier. In particular, an automatic ADC offset calibration system is provided for determining the magnitude of the ADC offset signal required in the system during a calibration operation, and for providing the calibrated ADC offset signal during normal operation of the isolation barrier system. A modified hybrid circuit is provided for isolating the system input from the telephone line during calibration, and for completing the calibration loop. Fixed bias signals are also provided for the ADC and for a DAC in the system. In a preferred embodiment, the ADC is located on the isolated side of the isolation barrier, while the integrator and register that determine and hold the offset signal are located on the powered side of the isolation barrier.

A method and apparatus for controlling a transmission of data blocks is provided by which data block transmission can be controlled more efficiently by measuring the RTT and setting a control timer value according to the measured RTT

A device for providing information concerning position and movement of a ball, in particular a basketball, to a user is provided. The device includes a ball having an opening therein. A sensor board is positioned within the opening in the ball. The sensor board carries a three-axis accelerometer electrically connected to a microcontroller and a transceiver. A receiver board is also provided and is located remotely from the ball. The receiver board carries a transceiver electrically connected to a microcontroller and a plug for connecting to a personal computer. The accelerometer on the sensor board continuously senses the position and acceleration of the ball. That information is then transmitted wirelessly to the receiving board by the transceivers. The position and acceleration information is then integrated in order to calculate the end position of the ball based on the position and acceleration information and previously input data on the shooter's height, distance from the basket and height of the basket. The data is then transferred to a personal computer by a USB connection for display to the shooter.

An apparatus and method for re-transmitting data in a wireless access communication system are disclosed. The data retransmission method in a wireless access communication system performing a data transmission/reception operation between a terminal and a base station using ARQ (Automatic Repeat Request) includes the step of transmitting allocation information for bandwidth for data retransmission with respect to data received by the base station and ARQ feedback information according to an error which is included in the received data from the base station to the terminal, and re-transmitting the data in which the error had occurred through the allocated bandwidth based on the allocation information of the bandwidth for the data retransmission from the terminal to the base station.

A data communication system capable of controlling the brightness of light sensed by the human eye and quality communication using an illuminative light is provided. A PWM circuit 11 adjusts pulse width in conformity with a light intensity control signal corresponding to a desired light intensity, resulting in a PWM signal. The PWM signal is then transmitted to a phase inverter 12. The phase inverter 12 outputs the PWM signal as is when a data signal to be transmitted is 0, for example, while it inverts the phase of the PWM signal and then outputs the resulting inverted PWM signal when the data signal is 1. A light source driver circuit 13 drives, a light source 14 such as an LED, organic electroluminescence, or the like in conformity with the phase inverted signal to emit light. In a data reception unit 2, an optical sensor 21 converts light emitted from an illuminating device 1 to an electric signal. A phase detection circuit 22 detects the phase of the signal and then outputs a received data signal.

Methods and systems of managing memory addresses in a large capacity multi-level cell based flash memory device are described. According to one aspect, a flash memory device comprises a processing unit to manage logical-to-physical address correlation using an indexing scheme. The flash memory is partitioned into N sets. Each set includes a plurality of entries (i.e., blocks). N sets of partial logical entry number to physical block number and associated page usage information (hereinafter ‘PLTPPUI’) are stored in the reserved area of the MLC based flash memory. Only one the N sets is loaded to address correlation and page usage memory (ACPUM), which is a limited size random access memory (RAM). In one embodiment, static RAM (SRAM) is implemented for fast access time for the address correlation. LSA received together with the data transfer request dictates which one of the N sets of PLTPPUI is loaded into ACPUM.