公开(公告)号：EP1021784A1

公开(公告)日：2000-07-26

申请号：EP99928606.5

申请日：1999-06-11

Applicant: SYMBOL TECHNOLOGIES, INC.

Inventor： CORREA, Mark ,  GELLES, Rubin ,  HE, Duanfeng ,  JOSEPH, Eugene ,  LI, Yajun ,  PATEL, Mehul ,  STANKELIS, Thomas, A.

IPC: G06K7/10

CPC classification number: G06K7/10811 ,  G06K7/10722 ,  G06K2207/1011

Abstract: An imaging engine (10) and signal processing devices (72) and methods are disclosed for reading various kinds of optical codes. The compact structure (54') may include a two-dimensional image sensor, apparatus for focusing images at different focal disclosures, an aiming system, a hi-low beam illumination system and related signal processing circuits.