Extended range bar code reader
作者： Vladimir Gurevich , Daniel Brown , Mehul Patel , Mark Krichever
DOI:
关键词: Reading (process) 、 Movement (music) 、 Engineering drawing 、 Mode (computer interface) 、 Code (cryptography) 、 Lens (optics) 、 Range (music) 、 Symbol (chemistry) 、 Computer graphics (images) 、 Bar (music) 、 Computer science
摘要: A focusing lens is manually moved to extend a range of working distances in which bar code symbol can be electro-optically read. The movement enables reading close-in and far-out symbols. also used change operation between mode pointing visual display created on target.
google.co.uk参考文章(10)
Chaochi Huang, Combination of laser pointer and ballpoint pen ,(1996)
Haruo Kobayashi, Toshinori Imura, Parallax compensating device for the view finder in a camera ,(1977)
Sakae Toyoshima, Camera with an internally arranged electronic flash device ,(1975)
Joseph Katz, Altaf Mulla, John Lert, Robert Sanders, Ed Barkan, Chinh Tan, Howard Shepard, Down-loadable hand-held optical reader ,(1997)
Philip Swift, John Lert, Margaret Hetfield, Patrick J. Salatto, Paul Dvorkis, Ed Barkan, Interface and method for controlling an optical reader having a scanning module ,(1997)
George A. Plesko, Light beam scanning pen, scan module for the device and method of utilization ,(1994)
Joseph DeVita, Simon Bard, Joseph Katz, Reuven Shapira, Joel Kahn, Richard Isaac, Daniel R. McGlynn, Robert Durst, Optical reader with independent triggering and graphical user interface ,(1995)
Takeshi Matsushima, Takeshi Miwa, Bar code reading apparatus with multifocal length optical system ,(1994)
M Yamashita, S Suzuki, Lens assembly for photographing at near or close distance ,(1973)
Onishi Hiroaki, Fujimoto Hisayoshi, Imamura Norihiro, Takakura Toshihiko, Image reading apparatus ,(2000)