Patent ID: 8640960
Filing Date: 2014-02-04
Classification: G06K,Y10T

Abstract:
1. A method for decoding indicia that includes a displayed decodable indicia displayed on a display having a wavelength emission spectrum the method comprising: providing an optical indicia reading terminal comprising a housing, a multiple pixel image sensor disposed within said housing, an imaging lens assembly configured to focus an image of a decodable indicia on said multiple pixel image sensor, an optical bandpass filter disposed in an optical path of light incident on said multiple pixel image sensor, said optical bandpass filter configured to pass light of one or more selected ranges of wavelengths and to attenuate light of wavelengths outside of said one or more selected ranges, wherein light incident on first and second pixels of said multiple pixel image sensor pass through the optical band pass filter, and wherein a transmission profile of the optical band pass filter is matched to said wavelength emission spectrum of said display, an analog-to-digital converter configured to convert an analog signal read out of said multiple pixel image sensor into a digital signal representative of said analog signal, said analog signal representative of the light incident on said multiple pixel image sensor; and a processor configured to output a decoded message data corresponding to said decodable indicia by processing said digital signal; and using said optical indicia reading terminal to decode said decodable indicia displayed on said display having said wavelength emission spectrum.