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2246 results about "Data extraction" patented technology

Data extraction is the act or process of retrieving data out of (usually unstructured or poorly structured) data sources for further data processing or data storage (data migration). The import into the intermediate extracting system is thus usually followed by data transformation and possibly the addition of metadata prior to export to another stage in the data workflow.

Method and system for secure cashless gaming

A secure cashless gaming system comprises a plurality of gaming devices which may or may not be connected to a central host network. Each gaming device includes an intelligent data device reader which is uniquely associated with a security module interposed between the intelligent data device reader and the gaming device processor. A portable data device bearing credits is used to allow players to play the various gaming devices. When a portable data device is presented to the gaming device, it is authenticated before a gaming session is allowed to begin. The intelligent data device reader in each gaming device monitors gaming transactions and stores the results for later readout in a secure format by a portable data extraction unit, or else for transfer to a central host network. Gaming transaction data may be aggregated by the portable data extraction unit from a number of different gaming devices, and may be transferred to a central accounting and processing system for tracking the number of remaining gaming credits for each portable data unit and/or player. Individual player habits can be monitored and tracked using the aggregated data. The intelligent data device reader may be programmed to automatically transfer gaming credits from a portable data device the gaming device, and continually refresh the credits each time they drop below a certain minimum level, thus alleviating the need for the player to manually enter an amount of gaming credits to transfer to the gaming device.

Traffic travel characteristic data extraction method based on big data

The invention discloses a traffic travel characteristic data extraction method based on big data, and belongs to the field of traffic big data analysis application. Mobile phone data act as the core of the big data, and GPS data, coil data and video data act as the auxiliary of the big data. Traffic travel characteristic data include OD data and job-housing ratio data. The main steps are listed as follows: 1) the mobile phone data, the GPS data, the coil data and the video data are acquired and the mobile phone data are preprocessed; 2) traffic cell allocation is performed through combination of the geographic attributes of administrative regions and base stations; 3) traffic travel chain identification is performed through combination of the multi-source data with the mobile phone data acting as the core, and passing points and stop points are identified; 4) inter-cell OD result output is performed through combination of the mobile phone data and demographic data; and 5) all the traffic travel chains within a week are analyzed, residential places and working places are judged through combination of turn-on and turn-off data and conversation data, and job-housing analysis is performed. Wide range of urban traffic travel characteristic data acquisition can be completed in a short period of time by the traffic travel characteristic data extraction method based on the big data.

High-frequency error detecting apparatus and method for heavy caliber heavy relative aperture aspherical mirror

InactiveCN101013027AIncrease horizontal resolutionIncrease the vertical measurement rangeUsing optical meansTesting optical propertiesMultiple pointError surface
The invention discloses a high-frequency error detection device and method in the large caliber large relative aperture non-spherical mirror, the device including the five-axis movement adjustment platform with the interferometer focusing platform, the side swing reflecting mirror side swing platform located in front of the interferometer focusing platform, and the measured non-spherical mirror 3D movement adjustment platform located below the side swing reflection mirror side swing platform, and the multiple points supporting machine with the laser wave surface interferometer, the side swing reflection mirrors, and the measured non-spherical mirror installed on the corresponding platforms, and the main control computer with built-in detection data-processing algorithm program connecting with the laser wave surface interferometer. The device uses the main control computer to process the detection data-processing algorithm, which can combine the detected multiple part regions error surface maps into error surface map with medium or high frequency in full caliber, including the initial pose determining method, the overlapping regional data extraction algorithm and the regional data stitching algorithm. The invention is a high-frequency error detection device and method with low-cost, high-precision, high-efficiency in the large caliber large relative aperture non-spherical mirror.
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