Patent ID: 9082023
Filing Date: 2015-07-14
Classification: G06K

Abstract:
1. A method for operating an indicia reader, comprising: providing a laser scanner that includes (i) an indicia-capturing subsystem for acquiring information about indicia within the indicia-capturing subsystem's field of view, the indicia-capturing subsystem including a light-deflecting assembly having a resonant oscillation frequency, and the indicia-capturing subsystem including a sense mechanism for generating a sense frequency associated with oscillation of the light-deflecting assembly, and (ii) an indicia-decoding processor for decoding indicia information; driving the indicia-capturing subsystem's light-deflecting assembly at a drive frequency; monitoring the sense frequency; and predicting, based on the phase shift between the drive frequency and the sense frequency, the resonant oscillation frequency of the indicia-capturing subsystem's light-deflecting assembly.