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Method and apparatus for determining the width of elements of bar code symbols 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06K-007/10
출원번호 US-0927905 (1992-08-10)
발명자 / 주소
  • Klancnik Mihael (Brookfield CT) Figarella Luis (Waterbury CT)
출원인 / 주소
  • United Parcel Service of America, Inc. (Atlanta GA 02)
인용정보 피인용 횟수 : 34  인용 특허 : 0

초록

A system for decoding a bar code symbol receives a signal representative of the symbol and searches the signal in one dimension to locate two adjacent critical points corresponding to an element of the symbol. The system also computes a value representative of the signal energy between the two criti

대표청구항

A method for decoding a bar code symbol, comprising the steps of: (a) receiving a signal representative of said symbol; (b) searching said signal in one dimension to locate two points corresponding to an element of said symbol; (c) computing a value representative of the signal energy between said t

이 특허를 인용한 특허 (34)

  1. Schuessler, Frederick; Schuessler, Anne, Apparatus and methods for optical representations of radio frequency identification tag information.
  2. Harris, Scott C., Bar code data entry device.
  3. Olmstead Bryan, Bar code reader with multi-focus lens.
  4. Iwaguchi,Isao; Miyazawa,Hideo; Watanabe,Mitsuo; Yamazaki,Kozo; Ohkawa,Masanori, Bar-code reader and method of reading bar-code.
  5. Iwaguchi,Isao; Miyazawa,Hideo; Watanabe,Mitsuo; Yamazaki,Kozo; Ohkawa,Masanori, Bar-code reader and method of reading bar-code.
  6. Harris, Scott C., Barcode device.
  7. Harris, Scott C., Barcode device.
  8. Harris, Scott C., Barcode device.
  9. Harris, Scott C., Barcode device.
  10. Harris, Scott C., Barcode device.
  11. Harris, Scott C., Barcode device.
  12. Harris, Scott C., Barcode device.
  13. Wang Ynjiun P. ; Ju Paul Pay-Lun, Detecting image cell position with subpixel accuracy.
  14. He,Duanfeng; Joseph,Eugene, Digitizing bar code symbol data.
  15. Colley James E. ; Olmstead Bryan L., Edge detection method and apparatus for shot noise limited signals.
  16. Colley James E. ; Olmstead Bryan L., Edge detection method and apparatus for shot noise limited signals.
  17. Ogami Kenneth Yuji, Method and apparatus for decoding symbols by declaring erasures of element characteristics.
  18. Zheng Joe ; Lei Ming, Method and apparatus for decoding two-dimensional symbols in the spatial domain.
  19. Olmstead Bryan L. ; Ahten Michael J. ; Paris Bruce E. ; Acosta Jorge L. ; Ring James W. ; Huss Paul R. ; Williams Jon P.C. ; McQueen Alexander M. ; Person Randy L., Method and apparatus for reading images without need for self-generated illumination source.
  20. Cherry Craig D. ; Actis Robert J., Method and apparatus for reading symbols on items moved by conveyor.
  21. Ogami Kenneth Yuji, Method and apparatus of autodiscriminating in symbol reader employing prioritized and updated table of symbologies.
  22. Ogami Kenneth Yuji, Method and apparatus of autodiscriminating in symbol reader employing prioritized and updated table of symbologies.
  23. Boersma Gerrit,NLX ; Maat Dennis Johannes,NLX, Method and device for decoding bar codes.
  24. Chiou, Hann-Huei; Tu, Yu-Jen, Method for multi-type barcode recognition, computer readable medium, and barcode recognition apparatus.
  25. Longacre, Jr., Andrew, Method for omnidirectional processing of 2D images including recognizable characters.
  26. Longacre, Jr., Andrew, Method for omnidirectional processing of 2D images including recognizable characters.
  27. He Duanfeng ; Joseph Eugene, Method of processing an analog electrical signal containing information representative of reflected light from coded indicia, wherein the electrical signal contains edge transitions.
  28. Paquette, Daniel R.; Vanhall, Richard C., Methods and systems for detection of repeating patterns of features.
  29. Cheung,Wai; Chang,Zhi guo; Ding,Shillin; Lv,Ying feng, Methods and systems for encoding and decoding data in 2D symbology.
  30. Olmstead Bryan L. ; Ahten Michael J. ; Paris Bruce E. ; Acosta Jorge L. ; Ring James W. ; Huss Paul R. ; Williams Jon P. C. ; McQueen Alexander M. ; Person Randy L., Multi-focus optical reader with masked or apodized lens.
  31. Roustaei Alexander R., Optical scanner and image reader for reading images and decoding optical information including one and two dimensional symbologies at variable depth of field.
  32. Wang Ynjiun P. ; Ye Angi, Sub-pixel dataform reader with dynamic noise margins.
  33. Olmstead,Bryan L., System and method for determining a threshold for edge detection based on an undifferentiated equalized scan line signal.
  34. Kubon Daniel G., System and method for facilitating high speed processing of video signals containing images of barcode labels.
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