H04N1/00864- Modifying the reproduction, e.g.H04N1/00838- Preventing unauthorised reproduction.H04N1/00071- Diagnosis, testing or measuring Detecting, analysing or monitoring not otherwise provided for characterised by the action taken.H04N1/00045- Methods therefor using a reference pattern designed for the purpose, e.g.H04N1/00007- Diagnosis, testing or measuring Detecting, analysing or monitoring not otherwise provided for relating to particular apparatus or devices.H04N1/00005- Diagnosis, testing or measuring Detecting, analysing or monitoring not otherwise provided for relating to image data.H04N1/00002- Diagnosis, testing or measuring Detecting, analysing or monitoring not otherwise provided for.H04N1/00- Scanning, transmission or reproduction of documents or the like, e.g.B41M3/00- Printing processes to produce particular kinds of printed work, e.g.B41M- PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES COLOUR PRINTING.B41- PRINTING LINING MACHINES TYPEWRITERS STAMPS.238000003909 pattern recognition Methods 0.000 description 1.238000004806 packaging method and process Methods 0.000 description 1.230000016776 visual perception Effects 0.000 description 2.238000004458 analytical method Methods 0.000 description 8.238000007689 inspection Methods 0.000 claims description 3.238000001914 filtration Methods 0.000 claims description 3.239000000758 substrate Substances 0.000 claims description 5.239000011800 void material Substances 0.000 title claims abstract description 119.Publication of US20110310404A1 publication Critical patent/US20110310404A1/en Application granted granted Critical Publication of US8593698B2 publication Critical patent/US8593698B2/en Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links Assignors: ARONOFF, JASON S., SIMSKE, STEVEN J., STURGILL, MALGORZATA M. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). reassignment HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP Priority to PCT/US2009/035359 priority Critical patent/WO2010098760A1/en Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. Original Assignee Hewlett Packard Development Co LP Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Sturgill Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires Application number US13/148,818 Other versions US20110310404A1
#What is void pantograph in cheques pdf
Google Patents Void pantographs and methods for generating the same using at least one test void pantographÄownload PDF Info Publication number US8593698B2 US8593698B2 US13/148,818 US200913148818A US8593698B2 US 8593698 B2 US8593698 B2 US 8593698B2 US 200913148818 A US200913148818 A US 200913148818A US 8593698 B2 US8593698 B2 US 8593698B2 Authority US United States Prior art keywords pantograph void foreground background filter Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US8593698B2 - Void pantographs and methods for generating the same using at least one test void pantograph US8593698B2 - Void pantographs and methods for generating the same using at least one test void pantograph