285 results about "Differential information" patented technology

A system and method for synchronizing devices which can couple to the Internet, or any network. The system includes a first sync engine on the first system interfacing with data on the first system to provide difference information. A data store is coupled to the network and in communication with the first and second systems. A second sync engine is provided on the second system coupled to receive the difference information from the data store via the network, and interface with data on the second system to update said data on the second system with said difference information. Difference information is transmitted to the data store by the first sync engine and received from the data store from the second sync engine.

An approach for supporting settlement of network usage associated with multiple network service providers is disclosed. A settlement system includes a processor that determines a settlement agreement among the network service providers. The settlement agreement specifies rate information associated with traffic exchange among the corresponding networks of the network service providers. A traffic monitor measures source traffic statistics, which is stored in a settlement database. Additionally, the settlement database stores the settlement agreement. The processor computes settlement information based upon the stored traffic statistics; the settlement information includes usage cost differential information for reconciliation of network usage among the various networks.

A difference information receiver, a difference information transmitter and a difference information synchronizer which cooperate in a system or device to update data in the device with data received from other systems, or provide data for other systems to use in updating themselves are disclosed. A difference receiver in a device having at least one application data destination having a format includes a difference engine receiving difference information associated with a change to said at least one application data destination; and an application interface, applying said difference information to said at least one data destination. A method for updating data files in a system is also disclosed. The method may include the steps of: receiving difference information for a subset of said data files; and applying said difference information to said subset of said data files. In particular said step of receiving may comprise: receiving a change log detailing changes to data files on another system; and applying said changes to a data store containing data identical to said data files to generate changed data. A difference transmitter comprises an application in a system having a data source in a source format. The application may include an application interface, extracting data from said data source; and a difference engine receiving said data and outputting difference information associated with changes to said data source. A method for updating a data source in a system is also disclosed. The method may include the steps of extracting difference information from at least a subset of said data source; and outputting difference information for at least the subset of said data source. The step of extracting may comprise determining whether changes have been made to the subset of data source in the system; and generating a change log detailing changes to the subset of data source on another system. A difference synchronizer includes an extraction routine for extracting a first set of difference information resulting from changes to the data files; a differencing transmitter for transmitting said first set of difference information to an output; a differencing receiver for receiving a second set of difference information from an input; and a reconstruction routine for applying the second set of difference information to the data files. In a particular embodiment, the invention comprises a device engine including an application object; an application object store; and a delta module.

Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the motion vector prediction unit and an actual motion vector of the current block.

A mechanism for managing ranking information using a sign of a stream tuple generated when stream data is inserted into, or deleted from, a window is provided. A mechanism for generating only the differential information of ranking calculation results, a mechanism for adding ranking information according to a request, an interface for generating and outputting all ranking information from the differential information, a mechanism for generating all ranking calculation results, and an interface for using these mechanisms are provided.

The invention belongs to the satellite navigation and positioning technical field and discloses a low earth orbit satellite-based satellite-earth differential real-time precise positioning method. A low earth orbit satellite is utilized to broadcast the observation data and real-time orbit data of the satellite-borne GNSS (Global Navigation Satellite System) receiver of the low earth orbit satellite to the ground; and after receiving the differential information broadcasted by the low earth orbit satellite, a ground receiver generates a double-difference observation value consisting of the differential information and a local GNSS observation value and performs pseudorange-based moving base station DGNSS (Differential Navigation Satellite System) positioning and carrier phase-based moving base station RTK (Rea-time kinematic) positioning. According to the positioning method of the invention, the global mobile low earth orbit satellite platform is adopted as a reference station, so that real-time precision differential positioning service in the whole world can be realized, and the method does not depend on the distribution of ground reference stations; and a user can realize differential real-time precise positioning just through using a single receiver, and therefore, the method is free of operating range restrictions, and data communication links are not required to be considered.

An image composition unit outputs a composition image of a physical space and virtual space to a display unit. The image composition unit calculates, as difference information, a half of the difference between an imaging time of the physical space and a generation completion predicted time of the virtual space. The difference information and acquired position and orientation information are transmitted to an image processing apparatus. A line-of-sight position prediction unit updates previous difference information using the received difference information, calculates, as the generation completion predicted time, a time ahead of a receiving time by the updated difference information, and predicts the position and orientation of a viewpoint at the calculated generation completion predicted time using the received position and orientation information. The virtual space based on the predicted position and orientation, and the generation completion predicted time are transmitted to a VHMD.

During recovery of a master system, a mismatch between data in the master system and that in a backup system is obviated quickly to shorten time consumed before resumption of operation of the master system. The backup system controls, as second difference information, update data generated over a substitutive operation period between occurrence of a disabled state of the master system and recovery thereof and when the master system is enabled to operate, a range of addition of first difference information inside the master system and the second difference information or only a range of the second difference information is copied to the master system to eliminate the data mismatch.

An image processing apparatus and an image processing method which can transmit/receive or display a high-dynamic-range image suitably are provided. An image transmission apparatus transfers, as metadata of content, luminance conversion information, which is for conversion of HDR content (for example, with maximum luminance 2000 nit) into SDR content (having, for example, 100 nit), or differential information. Based on the metadata, an image reception apparatus generates luminance conversion information, in which received HDR content is adapted to a capability of a display (for example, with maximum luminance 500 nit or 1000 nit) in an output destination, and realizes display mapping which is not against an intention of a producer.

An image interpretation support system by which past image interpretation results on an examination as an object of follow-up observation can be easily grasped. The system has: a server for storing a report database accumulating difference information between past reports in association with the respective past reports; and an image interpretation report creating apparatus connected thereto. The apparatus includes: a follow-up observation examination determining unit for determining whether or not this examination is an object of follow-up observation; a report finding control unit for creating an image interpretation report at this time by generating an image interpretation report creation screen and entering information in the screen; a changed portion extracting unit for extracting a changed portion to generate difference information; and a report saving unit for storing the difference information in association with the report at this time and the past report in the report database.

A system and method for providing precision locations for sensors which make up an array of sensors in a gunshot detection system. In a preferred embodiment sensors employ a commercial GPS which reports a sensor position or a group of pseudoranges to GPS satellites. A server collects differential information from a differential node and, in one preferred embodiment, calculates a precision position for each sensor by adjusting the reported position or pseudoranges with the differential information. In another preferred embodiment differential information is sent from the host to individual sensors which calculate their own precision positions. Differential information may be latitude and longitude corrections, pseudorange corrections, ionospheric delay, GPS satellite clock drift, or other corrective term which will improve the accuracy of a sensor position.

The present invention, when an external device accesses a third storage device in a prescribed environment, increases the likelihood of data in the third storage device being updated in the order in which data in a first storage device is updated, without the need for complex operations by a user.

More specifically, when difference information 13 comprising a data group, which represents differences between a data group inside a P-storage device 10P and a data group inside an SP-storage device 11SP, is transmitted, a first storage subsystem 5 sends an interrupt command and a restart command such that the difference information 13 is interposed therebetween, and a third storage subsystem 7 receives the interrupt command and restart command by way of a second storage subsystem 6, and based on these commands, writes the data group inside the difference information 13 to an S-storage device 12S.

A decoder decodes skipped macroblocks of an interlaced frame. Skipped macroblocks use exactly one motion vector and have no motion vector differential information, and lack residual information. The skipped macroblock signal indicates one-motion-vector coding. The skipped macroblock signal can be a compressed bitplane (in a selected bitplane coding mode) sent at frame layer in a bitstream, or an individual bit sent at macroblock layer. In another aspect, an encoder jointly encodes motion compensation type and field/frame coding type for a macroblock in an interlaced P-frame. The encoder also can jointly encode other information for the macroblock (e.g., the presence of a differential motion vector). A decoder decodes a joint code (e.g., a variable length code in a variable length code table) to obtain both motion compensation type and field/frame coding type (and potentially other information) for the macroblock.

The invention provides a mirror image snapshooting based on virtual machine backup system which is used for backing up virtual machine information in a virtual platform. The backup system comprises a backup server, a virtual management module, a mirror image snapshooting module and a snapshot comparison module, wherein the backup server is used for storing backup information of at least one virtual machine; the virtual management module is used for selecting the virtual machines required to be backed up; the mirror image snapshooting module is used for creating snapshots for disk mirror images of the virtual machines; and the snapshot comparison module is used for judging whether backup records of the selected virtual machines exist in the backup server and comparing the existent backup records with the created snapshot information if the backup records exist to store and back up differential information in the backup server. According to the system, the mirror image snapshooting module is utilized for snapshooting the virtual machines as needed, and the differential information is quickly extracted for backup storage when the mirror image snapshots of the virtual machines are not the same as the backup information, so that the utilization efficiency of mirror image storage is improved. Furthermore, the invention provides a backup method.

The method comprises: installing the GPS receiver at any location of the scene as a base station; the GPS receiver receives the GPS satellite signals and generates the differential correction information; the differential correction information is uploaded to the relay server via radio communication network; the relay server sends the differential correction information to the user's receiver of mobile station via radio communication network; the mobile station receives the GPS satellite carrier and pseudo range signal and navigation message, and receives the differential information from relay server via the radio communication network so as to realize the relative positioning between the base station and mobile station; making coordinate conversion and calculation for the positioning result to the user-desired coordinate.

Methods, systems, and media for providing a location-based service are disclosed. Embodiments include hardware and/or software for receiving from a user at a current location differential information indicating a difference between the current location and a particular, different location, determining the current location, determining the particular location based on the current location and the differential information, providing a location-based service based at least partially on the particular location, and displaying information to the user. Embodiments may also include determining directional information between the current location and the particular location. In one embodiment, the differential information comprises a distance between the current and particular locations.

A document structure-editing program which is capable of automatically generating difference information indicative of the differences between an old schema and a new schema. Document structure-defining information is edited by a document structure-editing device in response to an operating input. At this time, a record of an edit history indicating details of editing of the document structure-defining information is recorded on a storage device by an edit history-recording device, whenever the operating input is performed. Difference information indicative of the differences between the document structure-defining information before an edit and the same after the edit is generated by a difference information-generating device, based on the edit history recorded by the edit history-recording device.

An apparatus and method for automatically focusing a lens of a digital imaging device, such as a digital still or video camera or camera phone, that reduces the auto focus time while not compromising image sharpness quality and simultaneously reducing device power consumption due to focus actuator movement, all without tuning or adjustment of thresholds or parameters is disclosed. The present invention automatically computes a set of digital band-pass filters matched to the imaging device specifications along with corresponding step-size magnitudes. A filter-switching search for the in-focus focus actuator position is formulated such that filters are switched and step-sizes are reduced as the search gets closer to the in-focus position by utilizing local estimates of the first and second-order differential information of the focus value surface.

The invention relates to a background modeling method for movement target detection, and belongs to the technical field of photoelectric image processing. In order to establish an accurate background model in a complex scene, the method provides background statistical modeling methods utilizing inter-frame differential information, namely a median method and an average method, based on the problems that a background model is difficult to obtain for the background differential method and the background differential method is easily affected by external interference, the influence of a foreground target is removed, so that the established background model is more accurate and has high anti-interference performance. The median method and the average method have simple principles and high anti-noise performance and are easy to implement. In addition, according to the method, adjacent frames of video images are differenced, and an appropriate threshold value is selected, so that an accurate background model is guaranteed.

The embodiment of the invention provides a user interface element management method and device, wherein the method comprises: obtain a current user interface element attribute list; take advantage of the current user interface element attribute list and a user interface element attribute list in the local database of a testing device to carry out comparison, and obtain user interface element change and difference information; the technical means that displays the user interface element change and difference information thus achieves the following technical effects: 1. element management: carry out local database management to specifically applied element information in the user interface, combine with a operating system automation test framework for use, and reduce the working cost by a large margin. 2. mapping ordering: the content displayed in real time can be controlled by a user, and simple ordering can be carried out on different operation system applications. 3. difference contrast: clearly give the user interface element change and difference information of different versions of a same application so as to help a testing personnel to accurately locate problems.