摘要:
The disclosure describes an authentication system and related methods for authenticating printed objects. The system uses an information-based metric along with one or more print quality metrics to provide accurate detection or classification of a counterfeit printed object. The print quality metric evaluates attributes of a subject image associated with the original printer, ink or paper to detect degradation of those operations due to copying operations like an image scanning and halftone printing subsequent to the original printing of the object. The information-based metric measures message symbol errors in an optically readable code, such as a digital watermark.
摘要:
A system and corresponding method for detecting duplicate indicia on mailpieces. The system includes: a plurality of postal machines, each operated by a particular branch postal facility among a plurality of branch postal facilities, each postal machine having a scanning system for scanning indicia, each responsive to selection criteria, and each for providing data from sampled indicia based on the selection criteria and also for providing results of local verification of indicia; the plurality of branch postal facilities, each operating at least one of the postal machines, each responsive to selection criteria received from a central postal site, and in turn for providing the selection criteria to at least one of the postal machines it operates, each further responsive to the sampled indicia and to the local verification results provided by the postal machines it operates, and each for further providing to the central postal site data from the sampled indicia as well as a summary of all of the local verification results received from the postal machines it operates; and the central postal site, responsive to the sampled indicia and to the summary of the local verification results provided by each branch postal facility, for determining a duplicate detection list based on the sampled indicia, and for generating selection criteria to replace existing selection criteria and providing the selection criteria to the branch postal facilities so as to control sampling by the branch postal facilities by restricting the sampling to a subset that is a fraction of all indicia.
摘要:
A method for controlling a postage metering system (1) defines a first set of postage parameters P1, P2, P3 to Pn associated with the generation of postage evidence in a postage metering system (10) and then initializes the postage metering system (10) with a subset of the first set of postage parameters F1, F2, F3 to Fn. The subset F1, F2, F3 to Fn defines a combination of the postage parameters for which the generation of postage evidence is not authorized. When a request for postage evidence is received, the request includes a second set of postage parameters P1, P2, P3 to Pn that are combined to form a postage parameter vector (PPV). The generation of postage evidence is inhibited when at least one of the postage parameters P1, P2, P3 to Pn in the second set matches one of the postage parameters in the first set F1, F2, F3 to Fn. When none of the postage parameters P1, P2, P3 to Pn in the second set matches one of the postage parameters in the first set F1, F2, F3 to Fn the requested postage evidence is generated. In an alternative method the subset defines a combination of the postage parameters for which the generation of postage evidence is authorized, and the requested postage evidence is generated when each of the postage parameters in the first set matches one of the postage parameters in the second set.
摘要:
A printed indicium including a first section and a second section is described. The first section includes a first ink having a first color under normal daylight. The second section includes a second different ink. The second ink includes a fluorescent ink which has a second color under normal daylight which is substantially the same as the first color. The fluorescent ink has a fluorescence when subjected to fluorescent-exciting radiation. The second section is imbedded with the first section such that the first and second sections are substantially visually indiscernible from each other in normal daylight.
摘要:
A method for assigning unique printer resolutions or signatures, i.e., a unique number of dots per inch, to a class, or models of printers or lines of postage meter (37). The number of dots per inch or resolution may be specified within an image on a document or within a postal indicia (33) and later checked to determine if the image on document or the postal indicia (40) has the correct resolution. The foregoing would be able to detect an image or postal indicia (33) that was scanned into a computer and printed with a printer that did not have the number of dots per inch specified in the image or postal indicia(40).
摘要:
The number of dots per inch or resolution may be specified within an image on a document or within a postal indicia and later checked to determine if the image or document or the postal indicia has the correct resolution. The foregoing is accomplished by specifying that the image on the substrate (14) will be printed with n plus m dots per inch; rotating an ink jet head (11) having n nozzles per inch about an axis (13) parallel to a substrate by an angle theta so that the ink jet head will produce an image on the substrate having (n/cos theta) dots per inch; storing in a data center that the specified image will be printed with (n/cos theta) dots per inch; analyzing the image to determine if the image has (n/cos theta) dots per inch; and comparing the number of dots per inch in the analyzed image with the number of dots per inch stored for the specified image to determine if they have the same number of dots per inch.
摘要:
A method for assigning unique printer resolutions or signatures, i.e., a unique number of dots per inch, to a class, or models of printers or lines of postage meter (37). The number of dots per inch or resolution may be specified within an image on a document or within a postal indicia (33) and later checked to determine if the image on document or the postal indicia (40) has the correct resolution. The foregoing would be able to detect an image or postal indicia (33) that was scanned into a computer and printed with a printer that did not have the number of dots per inch specified in the image or postal indicia(40).
摘要:
The disclosure describes an authentication system and related methods for authenticating printed objects. The system uses an information-based metric along with one or more print quality metrics to provide accurate detection or classification of a counterfeit printed object. The print quality metric evaluates attributes of a subject image associated with the original printer, ink or paper to detect degradation of those operations due to copying operations like an image scanning and halftone printing subsequent to the original printing of the object. The information-based metric measures message symbol errors in an optically readable code, such as a digital watermark.
摘要:
A mailing machine (10) that optimizes throughput by reducing the amount of time necessary for the PSD to generate the digital signature and indicium for each mail piece is provided. Mailing machine (10) includes a printer (16) adapted to print postage indicia on a mail piece. Printer (16) is coupled to processor (12), which controls operation of mailing machine (10).