Patent ID: 8146819

Claim:
An indicia reading terminal comprising: an image sensor including an image sensor array having a plurality of pixels; a variable setting lens assembly for focusing light on the image sensor array, the variable setting lens assembly having a first lens setting at which the terminal has a first plane of optimum focus and a second lens setting at which the terminal has a second plane of optimum focus, the second plane of optimum focus being farther than the first plane of optimum focus; wherein the indicia reading terminal is operative to expose a first frame with the lens assembly at the first lens setting and is further operative to expose a second frame with the lens assembly at the second lens setting and is further operative to expose a third frame with the lens assembly at the first lens setting, the indicia reading terminal being operative to expose the second frame subsequently to exposing the first frame, the indicia reading terminal being operative to expose the third frame subsequently to exposing the second frame; wherein the indicia reading terminal is further operative to attempt to decode a decodable indicia by processing each of the first frame the second frame and the third frame; wherein the indicia reading terminal is further operative so that there is associated with the first lens setting a first picture size and further so that there is associated with the second lens setting a second picture size so that a frame exposed with the lens assembly at the first lens setting has a first picture size and further so that a frame exposed with the lens assembly at the second lens setting has a second picture size, wherein the first picture size is larger than the second picture size, wherein the first frame and the third frame have pixel values corresponding to a first set of pixels of the image sensor array, wherein the second frame has pixel values corresponding to a second set of pixels of the image sensor array, the first set of pixels including the pixels of the second set of pixels, wherein the indicia reading terminal is further operative so that responsively to a trigger signal activation the indicia reading terminal captures the first and second and third frames, the second frame being captured subsequently to a capture of the first frame, the third frame being captured subsequently to a capture of the second frame.