| 摘要 |
<p>An apparatus for analyzing telephone billing data to produce augmented billings and reports on calls to classes of telephone numbers selected by the user, such as to calls not on a list of authorized telephone numbers or calls not fulfilling some other predetermined criterion, includes data reading, selecting, and storing means capable of obtaining telephone directory and billing data in machine manipulatable form, comparing means for finding matches between sets of data as well as tracking failures to match, and data combining and outputting means for producing useful reports. External directory information database searching means are provided for matching billing data not matched with the internally stored directory data. Means are also provided for creating a secondary directory of data extracted from previously billing data to increase the efficiency of processing of subsequent billing data sets. The foregoing is a description of a specific implementation of a more general apparatus and method for reading data from at least two sources of input data containing information organized in a known manner or in a manner ascertainable from the data itself. If necessary, the data are converted to a machine manipulatable form (e.g. from a scanned image to character codes). Data of interest are selected and stored into mass storage having a predetermined structure organized into records having fields for preselected data types. The records from each input data source are stored in separate sets of records in mass storage. The stored records are then processed to produce a resulting output set of data records. Processing may comprise combining selected data from records in the input data sets that match according to a preselected criterion and flagging records in one data set that do or do not have matches in one or more of the other input data sets.</p> |
