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121results about How to "Effective synchronization" patented technology

Techniques for synchronizing application object instances

Techniques for synchronizing data object instances between applications / processes in an efficient manner. In one set of embodiments, the techniques described herein can be implemented in one or more network routers to synchronize data between a process running on an active management processor and a process running on a standby management processor, thereby facilitating features such as non-stop routing (NSR).
Owner:AVAGO TECH INT SALES PTE LTD

Synchronizing logical views independent of physical storage representations

Systems, methods, and computer program products for synchronizing items at replicas within a topology is disclosed. Items are stored in physical tables at the replicas. The physical table layouts at each replica can differ but are mapped to a common logical view. When a replica receives an indication that synchronization should be performed, the replica determines if changes have been made at the replica that should be mapped to the logical views. Replicas can facilitate this by comparing local change enumerations for changes made in physical tables to synchronization local change enumerations for changes in the logical views. Any changes that need to be synchronized are sent through the logical views to other replicas in the topology.
Owner:SERVICENOW INC

Method and system for accurate clock synchronization for communication networks

A high accuracy clock synchronization mechanism between a sender and a receiver in a communication network achieves time synchronization using broadcast beacons, directly at the PHY / MAC layer of the sender and the receiver, to minimize synchronization delay jitter. This provides a more efficient synchronization method than either NTP or SNTP, because multiple handshaking information exchange is avoided. Further, using beacons avoids the overhead of introducing additional synchronization packets in higher layer synchronization.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and apparatus for providing desktop application functionality in a client/server architecture

InactiveUS20050050547A1Quick and efficient and extensible accessAdversely impacting network resourceMultiprogramming arrangementsStructured data retrievalApplication softwareClient-side
A method and apparatus for synchronizing a client-side information store with a server-side database in a client / server architecture are disclosed. The method includes receiving data and receiving a script. The script defines a function of a control, and the function allows the control to perform an operation using the data.
Owner:R2 SOLUTIONS

Method and system for achieving a high availability and high performance database cluster

A method and system for implementing a high availability and high performance database cluster are disclosed. The method comprises: installing a distributed block device replication software, a high availability cluster component, and a dependent package of database multi-master software on a host and a backup machine; building a distributed block device replication software environment in the cluster for synchronizing data of the backup machine with the host; building a high availability cluster component environment in the cluster; building a database multi-master environment among nodes of the host, the backup machine and a slave; and defining a resource on the host and the backup machine so that the host and the backup machine are switchable to each other and the slave can access database services provided by the host and the backup machine to provide uninterrupted database cluster services.
Owner:XINYU XINGBANG INFORMATION IND

Methods and systems for playing video on multiple terminals

A method and system for synchronized video playing across multiple user terminals are disclosed. The method includes sending a continued video playing request to a server from a first user terminal to play a video from a break point, receiving video information from the server, the video information being submitted from a second user terminal, and playing the video from the break point based on the received video information. The method and system consistent with the present disclosure may improve a user's video watching experience by enabling a user to seamless switch between different user terminals.
Owner:TENCENT TECH (SHENZHEN) CO LTD

System And Method For Synchronizing File Systems With Large Namespaces

A method for facilitating synchronization of a remote file system (RFS) and a local file system (LFS) includes maintaining a global revision identifier associated with the RFS, where the global revision identifier has a variable state, and responsive to the RFS being modified, updating metadata associated with one or more of the file system objects of the RFS based on a state of the global revision identifier. More particularly, the method includes updating the global revision identifier to a new state in response to the RFS modification and then updating the metadata of the folder(s) associated with the RFS modification. The RFS metadata is partitioned by folder and file to facilitate efficient searching based on a requested namespace view. Another method utilizes prior revision identifiers stored in the LFS to limit the RFS metadata returned to the local cloud during a rescan, by excluding the data set that has not changed, which improves the efficiency of the rescan synchronization.
Owner:EGNYTE

Probabilistic distance-based arbitration

Probabilistic arbitration is combined with distance-based weights to achieve equality of service in interconnection networks, such as those used with chip multiprocessors. This arbitration desirably used incorporates nonlinear weights that are assigned to requests. The nonlinear weights incorporate different arbitration weight metrics, namely fixed weight, constantly increasing weight, and variably increasing weight. Probabilistic arbitration for an on-chip router avoids the need for additional buffers or virtual channels, creating a simple, low-cost mechanism for achieving equality of service. The nonlinearly weighted probabilistic arbitration includes additional benefits such as providing quality-of-service features and fairness in terms of both throughput and latency that approaches the global fairness achieved with age-base arbitration. This provides a more stable network by achieving high sustained throughput beyond saturation. Each router or switch in the network may include an arbiter to apply the weighted probabilistic arbitration.
Owner:GOOGLE LLC

Method and system for synchronizing a server and an on-demand database service

In accordance with embodiments, there are provided mechanisms and methods for synchronizing a server and an on-demand database service. These mechanisms and methods for synchronizing a server and an on-demand database service can enable embodiments to synchronize a larger amount of data. The ability of embodiments to provide such feature can enable more effective synchronization of a user-level sharing entity database with a multi-user on-demand database service.
Owner:SALESFORCE COM INC

System and method for synchronizing multiple database files

A system and method for efficiently synchronizing multiple databases stored on multiple computing devices. The method and system provides a duplicated database configuration where a database can either be stored only on a plurality of client computers, or on at least a client computer and a server computer. This duplicated database configuration allows users to access a database from a plurality of client computers that are communicatively connected to a server computer.
Owner:MICROSOFT TECH LICENSING LLC

Method and system for synchronizing a server and an on-demand database service

In accordance with embodiments, there are provided mechanisms and methods for synchronizing a server and an on-demand database service. These mechanisms and methods for synchronizing a server and an on-demand database service can enable embodiments to synchronize a larger amount of data. The ability of embodiments to provide such feature can enable more effective synchronization of a user-level sharing entity database with a multi-user on-demand database service.
Owner:SALESFORCE COM INC

Apparatus and method for supporting relay service in a multi-hop relay broadband wireless access communication system

An apparatus and method for configuring a subframe to support a relay service in a multi-hop relay BWA communication system are provided, in which a first zone of a subframe is configured for at least one of communication between a BS and a first MS within the coverage area of the BS and communication between at least one RS and a second MS within the coverage area of the at least one RS, and a second zone of the subframe is configured for at least one of communication between the BS and the at least one RS and communication between the at least one RS and another RS.
Owner:SAMSUNG ELECTRONICS CO LTD

Design method for lighting backplanes of hard disks of multiple NVMe (non-volatile memory expresses)

ActiveCN107729220AMake up for the lack of functions that cannot normally light up the Locate lightStable lightingDigital data processing detailsHardware monitoringData streamEmbedded system
The invention provides a design method for lighting backplanes of hard disks of multiple NVMe (non-volatile memory expresses), and belongs to the field of backplanes of hard disks of servers. The design method includes design steps of leading out a group of VPP (virtual pin ports) signal wires on each controller of a motherboard and transmitting the VPP signal wires to the backplanes via connectorsideband channels of each port; transmitting VPP addresses to backplane sides in a cyclic manner by the controllers and analyzing address information after data streams transmitted by the controllersare received by the backplane sides; transmitting hard disk lighting information of corresponding disk positions to the backplanes by the controllers if simulated VPP addresses of backplane channelsare identical to the addresses transmitted by the controllers; converting serial data streams on VPP into parallel signals by the backplanes, lighting backplane lamps of corresponding ports and uploading monitored hard disk in-place information to the controller. The design method has the advantages that the problem of incapability of normally lighting Locate lamps of existing backplanes of existing hard disks of existing NVMe can be solved by the aid of the design method, address wire information is added into connectors, and accordingly the multiple NVMe can be flexibly configured.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Digital signal with multiple reference blocks for channel estimation, channel estimation methods and corresponding receivers

A digital signal is organized in consecutive data trains each comprising a predetermined number of successive symbols, each of said data trains comprising at least two distinct reference blocks for the estimation of said channel, distributed among the useful symbols representing the source signal to be transmitted, each of said reference blocks being formed by at least one reference symbol known to the receiver and / or identifiable by said receiver. The reference symbols present in the reference blocks may be explicit reference symbols that are fixed and known a priori by said receiver and / or implicit reference symbols produced by the links generated between the useful symbols by an encoding operation. Also disclosed are channel estimation methods implementing an estimation-maximization algorithm and / or using a combination of predetermined basic functions, with a bandwidth greater than or equal to the Doppler power spectrum of said signal.
Owner:WAVECOM SA

Method and device for synchronization in wireless networks

A method and device are provided for synchronizing data transmission of multicasting / broadcasting services (MBS) by a plurality of Base Stations. The method disclosed comprises providing synchronization information to enable all of said plurality of Base Stations to start transmitting MBS data at a synchronized starting time point. Meanwhile, each of the Base Stations receives the MBS data to be transmitted and determines whether any of the MBS data has not been properly received. If so, the respective Base Station initiates a process to recover the missing MBS data or to obtain within a pre-determined time interval, information regarding the missing data in order to determine the duration of the time period that would have been required for the transmission of the missing MBS. If the missing data has not been timely recovered, the respective Base Station determines a starting point and the duration of a silence period based on the information obtained, and refrains from transmitting any signals along a communication channel allocated for transmission of MBS data, during that silence period.
Owner:SPARKMOTION

Synchronization of a conceptual model via model extensions

A method of synchronizing data between multiple endpoints each storing a copy of the data in accordance with different underlying schemas. An application model that provides a logical representation of an underlying schema is extended with a synchronization model that provides a logical representation of changes made to the data. The synchronization model comprises functions that provide synchronization information on the changes in a common format. Using such synchronization information, changes in a copy of the data stored in a first underlying schema on a first endpoints are applied to another copy of the data stored in a second underlying schema on a second endpoint in synchronization relationship with the first endpoint.
Owner:MICROSOFT TECH LICENSING LLC

System and method for synchronizing multiple database files

A system and method for efficiently synchronizing multiple databases stored on multiple computing devices. The method and system provides a duplicated database configuration where a database can either be stored only on a plurality of client computers, or on at least client computer and a server computer. This duplicated database configuration allows users to access a database from a plurality of client computers that are communicatively connected to a server computer. In one embodiment, the method and system synchronizes the databases of a client computer to the database of a server computer by downloading selected database objects from the server computer database, thereby minimizing the amount of data transferred between the client and server computers. The synchronization routine selectively downloads database objects based on a comparison of server access time indicators stored in the databases. If the server access time stored in the server computer database is earlier than the access time stored in the client computer database, the server computer downloads the entire server computer database to the client computer. If the server access time stored in the client computer database is earlier than the server access time stored in the server computer database, the server computer only downloads new database objects from the server computer to the client computer. The synchronization routine also provides for reducing the likelihood of synchronization errors by detecting expired client computer databases. If a particular client computer database is expired, the server computer replaces the client computer database with the server computer database.
Owner:MICROSOFT TECH LICENSING LLC

Method for determining uplink transmission timing of terminal having plurality of cells configured therein in wireless communication system, and apparatus using the method

Provided is a method for determining an uplink transmission timing of a terminal having a plurality of cells configured therein, and a terminal using the method in a wireless communication system. The method comprises receiving timing advance (TA) configuration information, and determining an uplink transmission timing for each of the two cells on the basis of the TA configuration information, wherein the plurality of cells comprise a first cell using a frequency division duplex (FDD) frame structure and a second cell using a time division duplex (TDD) frame structure.
Owner:LG ELECTRONICS INC

Imaging apparatus

A stereoscopic imaging system includes a stereoscopic imaging apparatus having a plurality of imaging modules to pick up an image and an imaging sync control module to arithmetically process the video signals output from the plurality of the imaging modules for the stereoscopic imaging operation. In the case where the imaging modules control the exposure using an electronic shutter function and come to have different timing of the center of gravity of the exposure period, an imaging sync control module sets the plurality of the imaging modules at the same timing of the center of gravity of the exposure period by displacing the phase of the timing of the center of gravity of the exposure period of the imaging modules thereby to prevent the image processing capability of the stereoscopic imaging operation from being reduced.
Owner:HITACHI LTD

Video-audio processing device and video-audio processing method

A video-audio processing device including a video output unit, an audio output unit, an audio transmitting unit, a controlling unit which switches an operation mode between (a) a first mode in which the audio signal is outputted from the audio output unit and the audio signal is transmitted from the audio transmitting unit and (b) a second mode in which the video signal is outputted from the video output unit and the audio signal is transmitted from the audio transmitting unit, a receiving unit which receives an input of delay information indicating an audio delay amount during the first mode, an audio delaying unit which delays the audio signal according to the audio delay amount, and a video delaying unit which delays the video signal by a video delay amount that is in accordance with the audio delay amount during the second mode.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Transmitting device, receiving device, and transceiving method thereof

A transmitting device which transmits a plurality of streams is provided. The transmitting device comprises: a first multimedia data consisting of multimedia contents; a first synchronization information for synchronization of a second multimedia data consisting of multimedia contents; a first transmitting data including a first signaling data for the first multimedia data and a second signaling data for the second multimedia data, a data generating unit generating a second transmitting data including a second synchronization information for synchronization of the second multimedia data and the first multimedia data, a first transmitting unit transmitting the first transmitting data supplied from the data generating unit to a receiving device through a broadcasting network, and a second transmitting unit transmitting the second transmitting data supplied from the data generating unit to the receiving device through an IP network.
Owner:SAMSUNG ELECTRONICS CO LTD +1

Receivers, methods, and computer program products for an analog modem that receives data signals from a digital modem

Receivers, methods, and computer program products can be used to demodulate a data signal transmitted from a digital source, which has a network sampling rate that is synchronized with a network clock. In an illustrative embodiment, a receiver includes a two-stage interpolator that receives digital samples of the data signal as an input and produces an interpolated digital sample stream to be filtered by an adaptive fractionally spaced decision feedback equalizer. The digital samples received in the interpolator are synchronized with a local clock; however, the interpolated sample stream is synchronized with the network clock. A slicer generates symbols for the samples output from the decision feedback equalizer by comparing the samples with a reference signaling alphabet. The receiver can be used in a V.90 client modem to demodulate pulse code modulated (PCM) data transmitted as pulse amplitude modulated (PAM) signals from a digital network. In addition, the receiver is compatible with legacy analog modem front ends and transmitters. The two-stage interpolator allows the timing synchronization to be performed with extremely fine granularity, which can be useful in PCM modems that typically require relatively high signal to noise ratios.
Owner:LENOVO (SINGAPORE) PTE LTD

Apparatus and method for supporting relay service in a multi-hop relay broadband wireless access communication system

An apparatus and method for configuring a subframe to support a relay service in a multi-hop relay BWA communication system are provided, in which a first zone of a subframe is configured for at least one of communication between a BS and a first MS within the coverage area of the BS and communication between at least one RS and a second MS within the coverage area of the at least one RS, and a second zone of the subframe is configured for at least one of communication between the BS and the at least one RS and communication between the at least one RS and another RS.
Owner:SAMSUNG ELECTRONICS CO LTD

Sleep apnea test sensor assembly and sleep apnea test equipment using the same

This relates to a sleep apnea test sensor assembly (20) comprising multiple sensors to be used for diagnosis of sleep apnea syndrome, and a test equipment (30) comprising the same. The respective sensors each associate sensing data measured by a respective sensing section with time data of a clock unit, and store them in a storage unit so as to allow the sensing section to perform sensing at a predetermined period in response to a clocking operation of the clock unit, and set time of the clock unit in response to a synchronous signal input from outside. The respective sensors operate physically independently of each other, but can measure sensing data with the synchronization in time therebetween being secured, enabling accurate diagnosis of SAS.
Owner:PANASONIC HEALTHCARE HLDG CO LTD

Method and system for synchronizing single event list data in positron emission tomography (PET)

The invention discloses a method and a system for synchronizing single event list data in positron emission tomography (PET). The method includes that at first, single event list data of each independent working detecting module is obtained, probability density of an occurrence time interval of a single event in each detecting module is calculated, and initial parameters are set; then iteration peak seeking and classification time window peak seeking are used for determining initial detecting time difference values of all detecting modules; and finally the difference values are used for conducting synchronous correction and fitting screening on single event data in each detecting module. The invention further discloses a system for synchronizing the single event list data in the PET. The system comprises a data obtaining and frequency difference compensation module, an initial parameter setting module, a rough time scale fitting module, a fine time scale fitting module and a data synchronization correction and fitting screening module. The method and the system for synchronizing the single event list data in the PET can finish synchronization of the single event list data effectively and accurately, simultaneously complexity of system hardware design is greatly simplified, and flexibility, expansibility and adaptability of the system are improved.
Owner:NANJING RAYCAN INFORMATION TECH

Method and System for Forming a Virtual File System at a Computing Device

ActiveUS20120054253A1Convenient and efficient for computingSimplifies data migrationDatabase distribution/replicationSpecial data processing applicationsVirtual file systemFile system
A method for forming a virtual file system associated with a distributed storage system is implemented at a computing device communicatively connected to the distributed storage system. The computing device retrieves one or more metadata blocks associated with the virtual file system from the plurality of storage devices. After rendering a commit tree for the virtual file system, the computing device builds an instance of the virtual file system by traversing a plurality of directory nodes and file nodes associated with the tree in a recursive manner. For a respective directory node, the computing device creates a directory in accordance with the metadata associated with the directory node; for a respective file node, the computing device retrieves one or more data blocks from the plurality of storage devices in accordance with the metadata associated with the file node and creates a file using the retrieved data blocks.
Owner:BEIJING INNOVATION WORKS TECH

Method and system for accurate clock synchronization for communication networks

A high accuracy clock synchronization mechanism between a sender and a receiver in a communication network achieves time synchronization using broadcast beacons, directly at the PHY / MAC layer of the sender and the receiver, to minimize synchronization delay jitter. This provides a more efficient synchronization method than either NTP or SNTP, because multiple handshaking information exchange is avoided. Further, using beacons avoids the overhead of introducing additional synchronization packets in higher layer synchronization.
Owner:SAMSUNG ELECTRONICS CO LTD

Method for making device to device communication in wireless communications system and apparatus therefor

The present invention relates to a method for making device to device (D2D) communication. More specifically, the step of enabling a first device communicating with another device through channel hopping to find a second device for communication further includes the steps of: finding the second device based on a first channel hopping sequence in a first time interval within the entire find cycle during which the first device performs the channel hopping; and setting the first device so as to perform the channel hopping based on a second channel hopping sequence in a second time interval within the entire find cycle, wherein the entire find cycle of the first device is determined based on the second channel hopping sequence in the second time interval and the number of repeated second channel hopping sequences.
Owner:LG ELECTRONICS INC
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