199results about How to "Reduction of information" patented technology

A method for transmitting and receiving data in a communication system. The method includes grouping, by a Base Station (BS), Mobile Stations (MSs) using a real-time service, into groups, allocating burst blocks to the groups, and allocating data bursts of burst blocks to the MSs; and determining, by each MS, whether its own uplink burst is allocated, and transmitting data to the BS through a sub-burst of a burst block allocated to a group to which each MS belongs.

A high speed technique for options pricing in the financial industry is disclosed that can provide both high throughput and low latency. A parallel / pipelined architecture is disclosed for computing an implied volatility in connection with an option. Parallel / pipelined architectures are also disclosed for computing an option's theoretical fair price. Preferably these parallel / pipelined architectures are deployed in hardware, and more preferably reconfigurable logic such as Field Programmable Gate Arrays (FPGAs) to accelerate the options pricing operations relative to conventional software-based options pricing operations.

A high speed technique for options pricing in the financial industry is disclosed that can provide both high throughput and low latency. A parallel / pipelined architecture is disclosed for computing an implied volatility in connection with an option. Parallel / pipelined architectures are also disclosed for computing an option's theoretical fair price. Preferably these parallel / pipelined architectures are deployed in hardware, and more preferably reconfigurable logic such as Field Programmable Gate Arrays (FPGAs) to accelerate the options pricing operations relative to conventional software-based options pricing operations.

In methods and systems to authenticate systems in a quantum key distribution environment based on limited disclosures and identical, re-usable, pre-provisioned authentication keys, each system constructs an encryption key based on a corresponding one of transmitted events and detected events. Basis-sifting, error detection, error correction, and / or privacy amplification (PA) may be performed on the encryption keys based on limited disclosures (e.g., detection interval information, basis-sifting information, associated detection basis information, and / or parity measures). The authenticated keys may be modified based on disclosed detection information. Error detection and / or PA may be performed with identical pre-provisioned algorithms and pseudo-random values generated from the authenticated keys or modified authenticated keys. Final authenticated encryption keys are selectively constructed depending upon an extent of detected errors. Construction of authenticated encryption keys indicates authentication of the systems. None of the pre-provisioned authentication keys or modified authentication keys is disclosed and may thus be reused.

An integrated product data environment for system design and optimization, e.g., a Collaborative Engineering Environment (CEE). The CEE provides a multi-disciplinary engineering team with immediate access to all relevant product information. It is an enterprise system at the program as well as the company levels, managing product information as a program and corporate asset. Product-centric collaborative capabilities for the CEE are provided by extending the functionality of a commercial Product Data Management (PDM) System. Emerging web-centric commercial-off-tho-shelf (COTS) PDM capabilities, object-oriented technologies, associated rapid application development environments, sophisticated engineering toolsets, and COTS computing and communications technologies have been leveraged to establish the CEE for the complex electronic systems integration domain. The CEE offers substantial improvements in productivity, cost savings, cycle time reductions, product integrity and lifetime support of a system.

A distributed data processing method which defines a predetermined section of the boundary with an adjacent game zone as a buffer sector and flexibly controls a zone server, and a system thereof, wherein the zone server is connected to a client in accordance with a type that an indication area includes the buffer sector. There is an effect that it is possible to provide a distributed data processing method by an online game server and a system thereof, in which a predetermined range based on the boundary with a game zone is defined as a buffer sector, and as a section of the buffer sector is included in an indication area, a user character connects a zone server of a game zone to which the user character moves next, to a client.

A system and method for encryption, transmission and decryption of data based on a publicly or other wide area broadcast random number sequence. Encryption is by a selected subsequence from the broadcast random number sequence, the selection being at a sample time relative to a synchronization event, with the sample time calculated based on a private key. Decryption uses the same private key to select the same subsequence from the broadcast random number sequence, as detection by the sender and receiver of the synchronization event and a sampling time based on a commonly known private key allows the sampling to be synchronous. Alternative embodiments employ trusted agents if the tender and receiver do not have a common private key.

Disclosed is a secure remote access system for improving convenience of a user by utilizing a storage device including an anti-tampering device as a user authentication device in the secure remote access system for making access and execution of job while a user is making the encrypted communication to a server from an unspecified client. Usability can be improved and thereby the job executing function can be used smoothly at the internal and external sides of the working office by providing a server client system where the server can be manipulated remotely by distributing a storage device loading the authorized anti-tampering device to users, connecting the storage device to unspecified clients by users, and using the authentication information and application stored in the storage device. A remote access system having improved security and convenient during usage of client from the user can also be provided by reducing the secret information remaining in the manipulated client.

A method and apparatus to dynamically control selectable vocoder rates in a CDMA network to optimally improve forward and reverse link capacity as necessary. To improve capacity, a number of vocoder rates are used, each requiring a different average data rate and providing a different level of voice quality. Vocoder rates are reduced to lower sector average output power thereby improving forward and reverse link capacity. Forward and reverse link loading are compared to established thresholds that, if exceeded, would trigger a forward link and a reverse link vocoder rate adjustment as necessary to improve network capacity. The forward link vocoder rate and reverse link vocoder rate may be set independently or the reverse link vocoder rate may be set as a function of the forward link vocoder rate to maintain a link balance.

An information stream of binary symbols is divided into serial packets of N binary symbols. The method further includes serial-parallel conversion of binary symbols in each serial packet and repeating N times the parallel packet thus obtained in order to form a serial-parallel packet of binary symbols. The binary symbols are permuted in the duration interval of each serial-parallel packet, and orthogonal codes generated according to the above binary symbol permutation are then applied. A space-diversity channel is then assigned to each serial group of the serial-parallel packet of coded binary symbols thus obtained. All the serial groups of coded binary symbols, each coded binary symbol having been previously spread by a user spreading code, as well as pilot signals of the corresponding space diversity channels are simultaneously transmitted. The method also involves generating on the reception side a serial packet of soft decisions that corresponds to the serial packet of binary symbols on the transmission side.

When the PESQ and similar algorithms are used to measure speech quality, a particular voice call is set up to transmit only test voice signals over a communications network. This enables the test voice signals to be easily identified and provides a means of determining the amount of degradation that occurs as a result of transmission of the test voice signals. However, one problem is that in packet switched networks the transmission characteristics change with time. Thus the estimated MOS score obtained cannot be assumed to give an accurate speech quality measure for a voice call later made between the same two points. By adding test voice information to an ongoing voice call and transmitting that test voice information integrally with the ongoing voice call these problems are addressed. The test voice information is sent in packets during silent periods in the voice call such that the voice call is not affected by the test voice information. An identifier is used to identify or label the packets comprising test voice information. In the case that real-time transport protocol is used, the identifier is preferably a payload type value.

A vehicle information specification determining function is built in the on-board terminal installed on a vehicle to determine the specification for vehicle information collection. An information center determines service charges according to the vehicle information specification determined by the vehicle information specification determining function.

An apparatus and method for reducing MAP channel overhead in a broadband wireless communication system. In a Base Station (BS), a traffic classifier classifies transmission data into a first group and a second group according to user channel information and packet sizes of the transmission data. A MAP channel configure configures a MAP channel to include information about users of the first group and positions of data for the users, information indicating whether users of the second group have succeeded in random access in a second uplink data region of a previous frame, and information about resource reservation for a current frame for the second group. A channel mapper maps the first group to a first downlink data region and maps the second group to a second downlink data region according to the MAP channel.

A method and system for authentication of a plurality of sites in a land mobile radio (LMR) system and for encryption of messages exchanged by the sites. The plurality of sites are connected by a data network (e.g., IP network). The method includes transmitting by a first site its certificate. The certificate is created by a trusted authority by applying a selected function to the public key, the ID and other relevant information of the first site with the trusted authority's private key to generate a reduced representation and then encrypting the reduced representation with the trusted authority's private key. The method further includes receiving, by the other sites in the LMR system, the certificate transmitted by the first site. The method further includes decrypting, by the other sites, the certificate transmitted by the first site and authenticating the first site, wherein the certificate is decrypted using the trusted authority's public key. The method further includes generating a session key, encrypting the session key with the public key of the first site, and transmitting the encrypted session key to the first site. The method further includes decrypting, by the first site, the encrypted session key with the first site's private key, and transmitting, by the first site, a message encrypted with the shared session key. The method further includes multicasting the encrypted message over the data network. The method further includes receiving, by the other sites in the LMR system, the encrypted message transmitted by the first site, and decrypting the message with the session key.

A distributed system and method for performing network monitoring including an infrastructure management appliance located within a customer premises. The infrastructure management appliance collects and aggregates relevant information regarding the status and performance of one or more of the customer's information technology resources. The infrastructure management appliance may support some number of integrated management and reporting applications. A secure virtual connection between the infrastructure management appliance and a remote data center may be used to convey management information from the infrastructure management appliance to the data center, and also to pass information defining the customer specific configuration and functional operation of the infrastructure management appliance from the remote data center to the infrastructure management appliance.

The present invention is directed to facilitating communication within an automation system having a plurality of networks and network protocols. Specifically, a Modbus network is operably connected to a network. A fieldbus coupler operably connected to both networks having a program facilitates communication within the automation system wherein devices connected to the network can be accessed for monitoring and / or controlling via Modbus commands. The fieldbus coupler (FBC) program accepts a Modbus function code containing one or more embedded message of varying types. The FBC program using additional information contained in the Modbus function code and the message type reads or writes only the required information to and from the field devices. This specific read or write request of the information and the embedding of more than one message type reduces overhead and bandwidth usage, thus improving bus response time and efficiency.

A central device uses a link shape compression unit to compress information of shape of ups and downs of a road link obtained from a three-dimensional road map, and calculates a geometry parameter based on variation of energy of a vehicle travelling on the road link. An on-board terminal device estimates the vehicle's average travelling pattern by using a travel-pattern-estimation unit based on the geometry parameter calculated by the central device, a link-travelling time estimated from statistically-stored traffic information, and a link length. The on-board terminal device further calculates fuel consumption of the vehicle travelling on each road link based on the estimated travelling pattern and parameters of the vehicle by using a fuel-consumption calculation unit, and then, searches a fuel-efficient route by using the fuel consumption as a link cost. The on-board terminal device has a vehicle-type selector for selecting a type of the vehicle. The present invention can reduce data size of information processed by the on-board terminal device, and facilitate application of a fuel-efficient route search to various types of vehicles.

A method of paging in a wireless communication system is disclosed. In the method, a base station generates a paging advertisement message that includes a paging group ID bitmap indicating whether there are any mobile stations that perform paging for each of paging groups that include the base station, and transmits the paging advertisement message to the mobile stations.

Various embodiments of the invention provide methods and systems for receiving and recording video content on a wireless phone. Merely by way of example, one set of embodiments provides a wireless phone with the capability to receive a broadcast video signal and to decode, digitize and record the broadcast video signal. In other embodiments, the wireless phone has the capability to receive broadcast video signals and / or video signals streamed over a network and to record these signals. In still further embodiments, the wireless phone may receive video content transmitted over a wireless network and may format and / or encode the video content and record the video content. In some embodiments the wireless phone comprises a video player for playing video content.

Disclosed are a method and apparatus for transmitting information in a low latency mobile communication system. Delay time requests are obtained from terminals, and time intervals for transmitting control information for the respective terminals are determined on the basis of the delay time requests. Control information is transmitted to the respective terminals according to the determined time intervals.

A data synchronization method includes: acquiring, in a partial-data synchronization process, a first part of a data item which is to be sent to a client, wherein the data item comprises at least the first part and a second part, and acquiring a data link corresponding to at least the second part of the data item; sending the acquired first part of the data item and the data link to the client in the partial-data synchronization process; and when receiving a request including the data link from the client, processing the at least second part of the data item corresponding to the data link. The present invention also discloses a data synchronization system, a data synchronization server and a client, with which a client may directly acquire a second part of a data item with the data link without initiating another data synchronization procedure.

Provided is an audio decoding device capable of suppressing an information amount for a lost frame compensation process and encoding efficiency. In this device, a decoded sound source generation unit (203) generates a lost frame decoded sound source signal; a pitch pulse information decoding unit (204) decodes the pitch pulse position information and the pitch pulse amplitude information; a pitch pulse waveform learning unit (205) learns a pitch pulse learning waveform in the past frame in advance from the lost frame; a convolution unit (206) amplitude-adjusts the pitch pulse learning waveform according to the pitch pulse amplitude information, and convolutes the pitch pulse waveform into a time axis which has been amplitude-adjusted according to the pitch pulse position information; a sound source signal correction unit (207) adds or replaces the pitch pulse waveform convoluted into the time axis to the lost frame decoded sound source signal.

Disclosed is a technology of encoding haptic information on images or decoding haptic information from images. The method of encoding the haptic information on the images according to the present invention includes: generating haptic information; generating encoding target data by using the haptic information and header information associated with the haptic information; and generating an encoded image by encoding the encoding target data by using a least significant bit (LSB) of byte data of each of the original image pixels. As a result, the present invention can simply encode / decode the haptic information while maintaining an original image format.

A system through which verbal information can be utilized to create structured data with tags (2) or inserted codes such as an XML code or the like provides hand held capability for easy adoption. A visual display (13) at the time of dictation can provide checklists, prompts or otherwise shape the entry to comport to a selected data context. The visual display can also be part of a transcriptionist system (7). By providing data in a coded fashion, analysis can be easily conducted such that alerts, bioterror alerts (e.g. evolving symptom or trend information for anthrax or the like) can be rapidly and perhaps automatically identified, and acted upon such as in providing health care alerts or locationally oriented statistical analysis information. A central database (1) reporting function to a central authority (11) (e.g., to the CDC or law enforcement) can be included for terrorist and other event management.

A web, server, and mobile device-based system to aggregate individual health activities into simpler behavioral modules and manage the social propagation, synchronization, and incentivization of such behaviors in a networked population. The system and implemented methods addresses the failure of current behavioral change techniques to achieve persistent engagement with behavior change through a systematic reduction in complexity of information and decision-making burdens on individuals to manage such behaviors. The system aggregates individual behavioral events into modules called, Walks, and provides mechanisms to synchronize and other individuals through a structured group hierarchy and shared events designed to propagate such behaviors across the participating population. These mechanisms enable network efficiencies that amplify the effectiveness of particular material incentives through social synchronization and reinforcement mechanisms. The methods and systems that apply to physical health are generalized provide an integrated capability to manage behaviors related to financial health, workplace practices, and social engagement.

The present invention provides a location indicating device (10) for determining on skin of a human or animal body a location for performing measurement of a physiological parameter in and / or treatment of the human or animal body. The location indicating device (10) comprises a matrix (7) of electrodes for determining skin resistance at different locations on skin of a human or animal body and a calculating unit (8) for calculating a location with highest skin resistance. The location indicating device (10) furthermore comprises visualisation means (9) for indicating the location of highest skin resistance to a user. The present invention also provides a method for making such a location indicating device (10) and a method for determining on skin of a human or animal body a location for performing measurement of a physiological parameter in and / or treatment of the human or animal body by using such a location indicating device (10).