Patent ID: 6607131
Filing Date: 2003-08-19
Classification: G06K

Abstract:
A method for reading an optical code using a reader manually scanned across the optical code which comprises a photoemitter, photoreceiver means and processor means, said method comprising:emitting radiation from said photoemitter in a first operating mode of said reader out of said reader; detecting an instantaneous amount of radiation received by said reader when in said first operating mode; continuing emitting said radiation from said photoemitter in said first operating mode when said instantaneous amount of radiation received is lower than a predetermined and fixed reference value; and emitting radiation for reading said optical code from said photoemitter in a second operating mode of said reader when said instantaneous amount of radiation received is greater than said predetermined and fixed reference value, wherein said step of emitting radiation in said second operating mode includes: switching on said photoemitter; switching off said photoemitter prior to reading said optical code; switching on said photoemitter in order to supply radiation for reading said optical code; and reading said optical code.