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Document detection apparatus 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G03G-015/00
출원번호 US-0177348 (1994-01-04)
발명자 / 주소
  • Hatch Gilbert J. (Rochester NY) Parisi Michael A. (Fairport NY)
출원인 / 주소
  • Xerox Corporation (Stamford CT 02)
인용정보 피인용 횟수 : 63  인용 특허 : 0

초록

A scanning background member is provided with two or more superimposed line sets or density patterns of having frequencies unrelated to each other that can be detected by a background detection circuit of a document scanner. The multifrequency edge detection arrangement may also control various imag

대표청구항

An apparatus for detecting the location of a sheet, comprising: a platen for supporting the sheet and providing a backing for scanning the sheet, said platen including a first optically detectable pattern having a first predetermined frequency, and a second optically detectable pattern superimposed

이 특허를 인용한 특허 (63)

  1. Scott Walter Guy ; Brunell David ; Kahn Matthew ; McClurg George William, Access control unit interface.
  2. Scott, Walter Guy; Fedele, Dean; Carver, John F., Adjustable, rotatable finger guide in a tenprint scanner with movable prism platen.
  3. Larry Steven Foster ; David Anthony Schneider ; Earl Dawson Ward, II, Apparatus and method for printhead to machine skew and margin adjustment for an electrophotographic machine.
  4. Kato, Minako; Suwa, Tetsuya; Nakamura, Takashi; Mochizuki, Yugo; Kato, Masao, Apparatus, method of controlling the same and storage medium.
  5. Berke, David; Conlon, Paul R., Automatic paper selection for custom media sizes.
  6. Park Joo-Seung,KRX, Automically aligning image data in an image processing apparatus.
  7. Zyzdryn,Gregory, Biometric imaging capture system and method.
  8. McClurg,George W; Carver,John F; Scott,Walter G; Zyzdryn,Gregory, Biometric imaging system and method.
  9. McClurg,George W; Carver,John F; Scott,Walter G; Zyzdryn,Gregory, Biometric imaging system and method.
  10. Irving,Richard D.; Scott,Walter Guy, Calibration and correction in a fingerprint scanner.
  11. Scott Walter Guy ; Davis James E., Code reader fingerprint scanner.
  12. Wang Xin Xin ; Nemeth Robert, Device for alignment of images in a control system for a printing press.
  13. Wang Xinxin ; Nemeth Robert, Device for automatically aligning a production copy image with a reference copy image in a printing press control syst.
  14. Tse, Francis K.; Cassidy, John C., Document handler systems and methods.
  15. Buchar, Wayne A.; Nagarajan, Ramesh; Huedepohl, Ralph H.; Yeoh, Wooi L.; Herloski, Robert P.; McGraw, Thomas C.; Harney, William M.; Baniak, Jeffrey L., Document scanner having replaceable backing and automatic selection of registration parameters.
  16. Isaev, Andrey, Document scanning method, system, and device having sets of parallel lines as background.
  17. Cannon,Greg L, Dynamic image adaptation method for adjusting the quality of digital prints.
  18. Yeoh, William; Nagarajan, Ramesh; Maryniak, James M., Electronic image registration based on chrominance channel.
  19. Kelly,Nancy R.; Nagarajan,Ramesh; Tse,Francis K., Electronic image registration for a scanner.
  20. Smith, David C., Fingerprint scanner auto-capture system and method.
  21. Smith,David C., Fingerprint scanner auto-capture system and method.
  22. Scott Walter Guy ; Davis James E. ; Betensky Ellis,CAX, Hand-held fingerprint recognition and transmission device.
  23. McClurg, George William; Brunell, David; Scott, Walter Guy, Hand-held fingerprint scanner with on-board image normalization data storage.
  24. Schweid Stuart A. ; Williams Leon C., Image input device and method for providing scanning artifact detection.
  25. Schweid Stuart A. ; Williams Leon C., Image input device and method for providing scanning artifact detection.
  26. Schweid Stuart A. ; Williams Leon C., Image input device and method for providing scanning artifact detection.
  27. Schweid Stuart A. ; Williams Leon C., Image input device and method for providing scanning artifact detection.
  28. Scott Walter Guy ; Fedele Dean J., Individualized fingerprint scanner.
  29. Scott, Walter Guy; Fedele, Dean J., Individualized fingerprint scanner.
  30. McClurg, George W.; Fedele, Dean J., Light wedge for illuminating a platen in a print scanner.
  31. McClurg, George W.; Fedele, Dean J., Light wedge for illuminating a platen in a print scanner.
  32. Harris,Rodney C.; Spears,Kurt E., Method and apparatus for measuring assembly and alignment errors in sensor assemblies.
  33. Martinez,Chris J; Scott,Walter Guy, Method and apparatus for rolled fingerprint capture.
  34. Lee Corl,TWX, Method and device for determining scanning dimension.
  35. Manish Kulkarni ; Timothy L. Kohler, Method for determining a skew angle of a bitmap image and de-skewing and auto-cropping the bitmap image.
  36. Kokemohr, Nils, Method for dynamic range editing.
  37. Kokemohr, Nils, Method for dynamic range editing.
  38. Kokemohr, Nils, Method for dynamic range editing.
  39. Kokemohr, Nils, Method for dynamic range editing.
  40. Kokemohr, Nils, Method for dynamic range editing.
  41. Kim Han-Sin,KRX, Method for scanning documents.
  42. Barton,Gary; Carver,John F.; Scott,Walter Guy; Smith,Tillman, Method, system, and computer program product for control of platen movement during a live scan.
  43. Scott,Walter Guy; Fedele,Dean J., Methods for capturing fingerprint images using a moving platen.
  44. Jacobson, Joseph; Schindler, Daniel, Methods for nucleotide sequencing and high fidelity polynucleotide synthesis.
  45. Furukawa Takao,JPX, Microfilm scanner and control method therefor.
  46. Fernandez,Frank E.; Siegel,William G., Mobile handheld code reader and print scanner system and method.
  47. Scott, Walter G.; Van Dusen, John; Irving, Richard D., Palm scanner using a programmable nutating mirror for increased resolution.
  48. McClurg, George William; Brunell, David; Scott, Walter Guy, Rechargeable mobile hand-held fingerprint scanner with a data and power communication interface.
  49. Nara,Wataru, Removal of background noise of image data by an image processing device or image reading apparatus.
  50. Edgar Albert D. (Austin TX) Penn Steven C. (Georgetown TX), Scan line queuing for high performance image correction.
  51. Lu, Po-Ching; Wen, Hui-Wen; Wang, Ming-Zhou, Scanner.
  52. Isaev, Andrey, Scanning device having a bed cover including a pattern of repeated design elements.
  53. Isaev, Andrey, Scanning implemented software for time economy without rescanning (S.I.S.T.E.R.) identifying multiple documents with first scanning pass and generating multiple images with second scanning pass.
  54. Arnold,Joe F.; Bardons,Charles P., Silicone rubber surfaces for biometric print TIR prisms.
  55. Farrell, Barbara L., System and method for automatically detecting edges of scanned documents.
  56. Farrell, Barbara L., System and method for automatically detecting edges of scanned documents.
  57. Cannon,Gregory L.; Smith,David C., System and method for counting ridges in a captured print image.
  58. Scott,Walter G, System and method for sending a packet with position address and line scan data over an interface cable.
  59. Siegel, William G.; McClurg, George W.; Cannon, Greg L., System and methods for access control utilizing two factors to control access.
  60. Poon, Yarn Chee; Wong, Chuan Wai; Ong, Whee Cheng, Systems and methods for edge detection during an imaging operation.
  61. Arnold, Joseph F.; Carver, John F.; Francis, Trent G.; Irving, Richard D.; McClurg, George W.; Scott, Walter G., Systems and methods for illuminating a platen in a print scanner.
  62. Arnold,Joseph F.; Carver,John F.; Francis,Trent G.; Irving,Richard D.; McClurg,George W.; Scott,Walter G., Systems and methods for illuminating a platen in a print scanner.
  63. Siegel,William G.; Cannon,Greg L.; Fernandez,Frank E., Systems and methods utilizing biometric data.
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