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[미국특허] Multi-focus optical reader with masked or apodized lens 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06K-007/10
출원번호 US-0162349 (1998-09-28)
발명자 / 주소
  • 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.
출원인 / 주소
  • Spectra-Physics Scanning Systems, Inc.
대리인 / 주소
    Lyon & Lyon LLP
인용정보 피인용 횟수 : 119  인용 특허 : 13

초록 ▼

A method and apparatus for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader is preferably embodied as a handheld unit and comprises an efficient optical collection system including an aperture with a high aspect ratio and/or a

대표청구항 ▼

[ What is claimed is:] [1.] An optical reader comprising:a multi-focus light gathering system comprising a lens having a plurality of zones, at least two zones having different focal lengths;a mask covering a portion of at least one of said zones such that interference between said zones caused by s

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

  1. Fossum Eric R. (LaCrescenta CA) Mendis Sunetra (Pasadena CA) Kemeny Sabrina E. (LaCrescenta CA), Active pixel sensor with intra-pixel charge transfer.
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  2. Adachi Yutaka (Sagamihara JPX), Bar code reader for accurately reading two-dimensional bar code images.
    상세보기
  3. Quinn Anna M. (Rochester NY) Eastman Jay M. (Pittsford NY), Diffractive optical beam shaping methods and apparatus for providing enhanced depth of working range of bar code scanner.
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  4. Barkan Edward (Miller Place NY), Digital circuit for a laser scanner using a first derivative signal and a comparison signal.
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  5. Swanson Gary J. (Lexington MA) Scott Miles (Palm Bay FL), Lens/zone plate combination for chromatic dispersion correction.
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  6. Figarella Luis (Waterbury CT) Klancnik Mihael (Brookfield CT), Method and apparatus for detecting and decoding bar code symbols using two-dimensional digital pixel images.
    상세보기
  7. Arends Thomas C. (Eugene OR) Elliott Randy D. (Eugene OR), Method and apparatus for detecting transitions in a time sampled input signal.
    상세보기
  8. Klancnik Mihael (Brookfield CT) Figarella Luis (Waterbury CT), Method and apparatus for determining the width of elements of bar code symbols.
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  9. Roustaei Alex (1696 Via Inspirar San Marcos CA 92069), Optical scanning head.
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  10. Reddersen Brad R. (Eugene OR) Gummeson Phillip C. (Eugene OR) Hayakawa Hiroshi (Saitama OR JPX) Loris Blaine F. (Eugene OR) Elliott Randy D. (Eugene OR) Ketelsleger Kimberly A. (Eugene OR) Machida Ha, Scanner assembly.
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  11. Smith Steven L. (Oxford CT) Mulligan Joseph P. (Fairfield CT) Skinger Gregory P. (Southbury CT) Esslinger Robert H. (Wilton CT), System and method for optical scanning using one or more dedicated pixels to control lighting level.
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  12. Barkan Edward (Miller Place NY), System for digitizing a scanned signal indicating changes in signal intensity.
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  13. Rudeen Robert W. (Eugene OR), Variable focus optical system for data reading.
    상세보기

이 특허를 인용한 특허 (119) 인용/피인용 타임라인 분석

  1. Zhu, Xiaoxun; Au, Ka Man; Germaine, Gennady; Good, Timothy A.; Schnee, Michael; Scott, Ian; Groot, John; Wilz, Sr., David M.; Rockstein, George B.; Blake, Robert E.; Dickson, LeRoy; Knowles, Carl Har, AUTOMATED METHOD OF AND SYSTEM FOR DIMENSIONING OBJECTS TRANSPORTED THROUGH A WORK ENVIRONMENT USING CONTOUR TRACING, VERTICE DETECTION, CORNER POINT DETECTION, AND CORNER POINT REDUCTION METHODS ON .
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  2. Giebel, James R.; Fazekas, Peter; Goren, David P., Apparatus for and method of electro-optically reading a target in the presence of ambient light by suppressing the ambient light.
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  3. Jam, Mehrban; Lyon, Geoff, Apparatus for capturing images and barcodes.
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  4. Wang, Ynjiun P., Apparatus having hybrid monochrome and color image sensor array.
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