144results about How to "Avoid synchronization" patented technology

Techniques are disclosed to support hosting of a first operating system by a second operating system, where the first system provides at least some of the infrastructure for the second system. A facility is provided whereby the second system can receive data from the first system without the first system being able to modify that data. The second system may use the first system's scheduler by creating shadow threads and synchronization objects known to the first system, while the second system makes the final decision as to whether a thread runs. Separate memory may be allocated to both systems at boot time, or dynamically during their operation. The techniques herein may be used to protect the second system from actions arising in the first system. Preferably, the interaction between the first and second systems is facilitated by a security monitor, which assists in protecting the second system from the first.

An advanced configuration and power management system is described which supports an unload command by identifying those objects that are to be unloaded and, rather than simply attempting to delete the objects, detaches them from the namespace while keeping them in memory in a location accessible by the system. In this way, the system avoids the problem of trying to synchronize accesses to the objects, yet the objects not longer exist in the tree, so namespace collisions are avoided.

A method for establishing a synchronization or for establishing a connection between a mobile terminal 1 and a base station 2 and/or an access point 3 in a wireless communication system 4, whereby the mobile terminal carries out the steps of measuring the location 5 of the mobile terminal; identifying a base station and/or an access point by comparing said location with data stored in the mobile terminal, said data comprising information on the positions 6, 7 of the base stations and/or access points, and parameters associated with these base stations and/or access points, the parameters being usable by a mobile terminal for establishing a synchronization (for receiving broadcast information and for measuring) or for establishing a connection to at least on of these base stations and/or access points; establishing a synchronization or establishing a connection to the identified base station and/or access point with the help of said parameters.

According to a method for clouding an SCADA system based on a Spring cloud micro-service architecture, the SCADA system is developed according to the Spring cloud micro-service architecture, so that the SCADA system can be conveniently deployed on a cloud server. The method comprises the following steps of 1, creating a male parent; 2, carrying out the service discovery and registration; 3, arranging a service provider and a service consumer; 4, fusing the service; 5, configuring a center; 6, setting an API gateway; 7, performing distributed transaction consistency management; and 8, constructing the micro-service by using the Docker. According to the present invention, the Spring Boot is used for developing the application micro-service, and the functions of service discovery, service consumption, service fusing, API gateway, unified configuration center, distributed transaction consistency management and container construction can be effectively achieved.

A method is provided for synchronizing time between nodes in a wireless communication system. A reference node transmits a first packet to a correspondent node. Upon receiving the first packet, the correspondent node transmits a second packet with a reception time of the first packet recorded therein, to the reference node. Upon receiving the second packet, the reference node calculates a forward delay time using a transmission time and the reception time of the first packet. The correspondent node receives a third packet with the forward delay time from the reference node, and calculates a reverse delay time. The correspondent node calculates an offset value for the synchronization using the forward delay time and the reverse delay time.

The invention discloses a three-dimensional flow field image measurement device and method adopting a single lens, which are characterized in that a polarized light source is used for illuminating a flow field to be detected; light from a camera lens is divided into two paths through a light splitting prism and polaroids are respectively used for carrying out polarization detection for the two paths; two CCDs (Charge Coupled Device) or CMOS (Complementary Metal-Oxide-Semiconductor Transistor) image sensors are respectively used for imaging; a relative gray level of a corresponding tracer particle in two pictures can be used for judging whether the tracer particle is located in front of a focusing plane or in back of the focusing plane; the distance between the position of the tracer particle and the focusing plane is computed according to the size of a defocusing amount of the tracer particle of the single picture, so as to only determine a three-dimensional position of the tracer particle; and a movement fuzzy parameter is combined to further obtain a three-dimensional movement speed of the tracer particle, namely the information of a three-dimensional flow field is obtained. The three-dimensional flow field image measurement device and method adopting the single lens have the beneficial effects that the three-dimensional measurement of a transient flow field can be realized by only one camera lens, a measurement system and a data processing process are simplified, and the system cost is reduced.

To perform character recognition on an object for automatic processing of the object in a processing system, where the object contains at least one character string of processing information, a character string spoken by an operator is processed by a speech recognition procedure to generate a candidate list containing at least one candidate corresponding to the operator-spoken character string. The candidate list and a digital image of an area containing the processing information are made available for an optical character recognition procedure. The OCR procedure is performed on the digital image in coordination with the candidate list to determine if a character string recognized by the OCR procedure performed on the digital image corresponds to a candidate in the candidate list. Any such corresponding candidate is outputted as the character string on the object.

A decrypting apparatus for decrypting cryptography data included in a packet includes a receiver, a key generator, and a decrypting section. The receiver receives a packet transmitted from an encrypting apparatus that executes an encrypting process. The key generator generates a key used for the encrypting process. The decrypting section decrypts cryptography data included in the packet received by the receiver with using the key generated by the key generator. In the decrypting apparatus, the packet received by the receiver includes packet information used for generating the key. The key generator generates the key with using the packet information.

According to a method for constructing a cloud SCADA system based on the Spring cloud micro-service architecture, the SCADA system is developed according to the Spring cloud micro-service architecture, so that the SCADA system can be conveniently deployed on a cloud server. The method comprises the following steps: 1, creating a parent project; 2, constructing service discovery and registration; 3, achieving service consumption and load balance; 4, realizing the service fusing; 5, creating configuration center service; 6, setting an API gateway; 7, performing distributed transaction consistency management; and 8, constructing the micro-service by using the Docker. The Spring Boot is used for developing the application micro-service, and the functions of service discovery, service consumption, service fusing, API gateway, unified configuration center, distributed transaction consistency management and container construction can be effectively achieved.

The invention discloses an encryption method with a misguiding function, aiming at attacks such as secret key stealing, secret key holder seizing, rubber-hose cryptanalysis, ciphertext-only attack and the like. A pseudo secret key can be easily obtained through encryption with the method disclosed by the invention, thus a password analyzer can be misguided, the misguiding is determined by an internal secret key and comprises information for generating a secret key flow and correction information, and the misguiding effectiveness can be enhanced according to actual demands by using the correction information. For a special processing mode adopted by signs in a document, the specified signs can not be confused when possibly occurring in a text. A keyword database is needed during encrypting, internal encryption is subjected to keyword expansion by using the database, and the traditional encryption method is adopted in external encryption. The invention does not need the support of the database during encrypting so as to avoid the problem of synchronization of the database. The invention has a certain use value in the encryption application of various occasions, especially military.

Embodiments of the present invention provide a data transmitter, a data receiver, and a frame synchronization method. The data transmitter includes a coding module and a processing module. The coding module is configured to perform forward error correction FEC coding on sent data to obtain an FEC code word, and to output the FEC code word and an indication signal for indicating a boundary position of the FEC code word to the processing module. The processing module is configured to insert a training sequence into the FEC code word according to the indication signal, so that a data receiver determines the boundary position of the FEC code word according to the training sequence.

Provided is an apparatus and method for detecting a packet of a zero-padded OFDM signal, which are capable of determining if a packet exists in a reception (RX) signal by comparing a cross-correlation value of an OFDM signal delayed by a predetermined sample time, e.g., a zero-padded sample time, with a power value of the RX signal, thereby increasing a packet detection probability and preventing a false alarm. The packet detecting apparatus includes: a cross-correlation calculator for calculating a cross-correlation value of a reception signal received from the outside and delaying the calculated cross-correlation value by a predetermined sample time; a power calculator for calculating a power value of the reception signal; and a packet detector for determining if a packet exists in the reception signal by comparing the delayed cross-correlation value with the calculated power value, and detecting the corresponding packet.

An erroneous synchronization preventing device includes a pattern detector detecting a sync pattern from received data with a broader sync window to output a sync detection notice and a sync timing. On receipt of the notice, a packet header detector checks an error in a header field of the received data, and, if detecting no error, outputs a header-normally-received notice, on receipt of which the timing corrector makes the inner timing synchronous with the sync timing to output a timing correction end notice. The mode manager in turn outputs a change notice. The pattern detector then detects the sync pattern with a narrower sync window. Unless the end notice is received within a predetermined period as from receipt of the change notice, a detection period monitor outputs an out-of-synchronism notice. The mode manager then outputs a restoration command for instructing detection of the sync pattern with the broader sync window. Disconnection of a communication link due to erroneous synchronization will be avoided.

Methods and devices are provided for applying a ciphering configuration in a wireless communication network. The method includes initiating an entity reset procedure by a first entity in the wireless communication network; synchronizing Hyper Frame Numbers (HFNs) associated with the first entity and a second entity, respectively, during the entity reset procedure; and applying a new ciphering configuration by the first entity and the second entity, upon completing the entity reset procedure, without updating the synchronized HFNs associated with the first entity and the second network, respectively.

Embodiments of the invention disclose a method and device for copying GPU video memory textures to system memories and electronic equipment. The method comprises the following steps of: copying imagedata stored in a GPU video memory texture into different target textures stored in a system memory in sequence; and when the copy of at least one frame of image data is completed, carrying out addressmapping on image data frames copied into the different target textures stored in the system memory in sequence on the basis of an order relationship of the copy times. By adoption of the method, theefficiency of copying image resources stored in GPU video memory textures to system memories can be improved, so that the video encoding frame rate and video live streaming fluency are improved.

The invention discloses a data exchange method applied to a BIOS (Basic Input Output System) and a baseboard management controller (BMC). The method includes: acquiring configuration information of current SETUP options; encapsulating the configuration information into a JSON (JavaScript Object Notation)-format data packet; and sending the data packet to the baseboard management controller throughan IPMI protocol to enable the baseboard management controller to detect configuration information of SETUP options, which are stored thereby, according to the data packet, wherein the configurationinformation includes at least the number of the current SETUP options of the BIOS, a name and a current configuration value of each option and configurable values of each option. Therefore, respectivemanual setting of the configuration information of the SETUP options of the BIOS and the baseboard management controller is avoided, work efficiency is improved, and times and costs are also saved. Correspondingly, a data exchange device and data exchange equipment applied to the BIOS and the baseboard management controller and a computer-readable storage medium disclosed by the invention also have the above-mentioned technical effects.

The invention discloses an MAC (Media Access Control) layer synchronizing method improved based on IEEE 802.16d, which is used for realizing synchronization among nodes and synchronization between an MAC layer inside the nodes and radio frequency. The invention adopts the technical scheme as follows: realizing the synchronization among nodes by using a time stamp field in an MSH-NCFG message specified in a 802.16d protocol; and designing a primitive message for interaction between the MAC layer and the radio frequency to correctly realize the synchronization among nodes and the synchronization between the interiors of the nodes. The method is characterized by comprising the steps of clock synchronization of the interiors of the nodes, clock synchronization among nodes and processing of the time stamp field of neighboring nodes, wherein the clock synchronization among nodes comprises primary clock synchronization in network accessing and synchronous correction and maintenance after network accessing.

The invention discloses a method and a system for realizing full distribution of a protocol stack. In the method, the full distribution aim of the protocol stack is fulfilled by synchronizing a small number of internet protocol control block (INPCB) data according to the characteristics of a transmission control protocol (TCP), a user datagram protocol (UDP) and a raw internet protocol (RawIP). In particular, for the TCP, the INPCB data of a mother SOCKET is synchronized; for the UDP, the INPCB data connected with a server terminal is synchronized; and for the RawIP, all the connected INPCB data is synchronized. By the method and the system, the full distribution of protocol stack process can be realized without synchronizing all the INPCB data.