Bar code reading device having partial frame image capture operating mode
First Claim
1. A bar code reading device for reading a bar code symbol disposed within an area, said bar code reading device comprising:
- (a) an imaging assembly comprising a two dimensional image sensor having a plurality of pixels, said plurality of pixels formed in a plurality of rows of pixels, said image sensor having a set of pixels that generate electrical signals representing light incident on said image sensor when said bar code reading device operates in a full frame image capture mode, said imaging assembly having optics focusing an image onto said image sensor; and
(b) a control circuit coupled to said imaging assembly wherein said control circuit is configured to operate according to a first image capture operating mode and a second image capture operating mode;
(c) wherein said control circuit when operating according to said first image capture operating mode captures a partial frame of image data, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor, wherein said control circuit further captures at least one parameter determination frame of image data for processing to establish at least one operating parameter of said bar code reading device, said at least one parameter determination frame of image data also having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor;
(d) wherein said control circuit when operating according to said second image capture operating mode captures a frame of image data having image data representing a larger portion of said area than said partial frame of image data captured by said control circuit when operating according to said first operating mode;
(e) wherein a frame rate of said bar code reading device when executing said first image capture mode is faster than a frame rate of said bar code reading device when executing said second image capture mode; and
(f) wherein said control circuit is configured to attempt to decode said bar code symbol utilizing both image data captured by said control circuit in said first image capture operating mode and image data captured by said control circuit in said second image capture mode.
1 Assignment
0 Petitions
Accused Products
Abstract
A bar code reading device having an image sensor including a plurality of pixels can be operated to capture a parameter determination frame of image data, wherein the parameter determination frame of image data includes image data corresponding to light incident at less than all of the pixels of the image sensor. A bar code reading device can also be operated in an image capture operating mode in which a partial frame of image data is captured, wherein the partial frame of image data includes image data corresponding to light incident at less all of the pixels of the image sensor, and wherein image data of the partial frame can be processed in order to attempt to decode a bar code symbol.
133 Citations
40 Claims
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1. A bar code reading device for reading a bar code symbol disposed within an area, said bar code reading device comprising:
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(a) an imaging assembly comprising a two dimensional image sensor having a plurality of pixels, said plurality of pixels formed in a plurality of rows of pixels, said image sensor having a set of pixels that generate electrical signals representing light incident on said image sensor when said bar code reading device operates in a full frame image capture mode, said imaging assembly having optics focusing an image onto said image sensor; and
(b) a control circuit coupled to said imaging assembly wherein said control circuit is configured to operate according to a first image capture operating mode and a second image capture operating mode;
(c) wherein said control circuit when operating according to said first image capture operating mode captures a partial frame of image data, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor, wherein said control circuit further captures at least one parameter determination frame of image data for processing to establish at least one operating parameter of said bar code reading device, said at least one parameter determination frame of image data also having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor;
(d) wherein said control circuit when operating according to said second image capture operating mode captures a frame of image data having image data representing a larger portion of said area than said partial frame of image data captured by said control circuit when operating according to said first operating mode;
(e) wherein a frame rate of said bar code reading device when executing said first image capture mode is faster than a frame rate of said bar code reading device when executing said second image capture mode; and
(f) wherein said control circuit is configured to attempt to decode said bar code symbol utilizing both image data captured by said control circuit in said first image capture operating mode and image data captured by said control circuit in said second image capture mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A bar code reading device for reading a bar code symbol disposed within an area, said bar code reading device comprising:
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(a) an imaging assembly comprising a two dimensional image sensor having a plurality of pixels, said plurality of pixels formed in a plurality of rows of pixels, said image sensor having a set of pixels that generate electrical signals representing light incident on said image sensor when said bar code reading device operates in a full frame image capture mode, said imaging assembly having optics focusing an image onto said image sensor; and
(b) a control circuit coupled to said imaging assembly wherein said control circuit is configured to operate according to a first image capture operating mode and a second image capture operating mode;
(c) wherein said control circuit when operating according to said first image capture operating mode captures a partial frame of image data, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode corresponding to at least one of said rows of pixels of said image sensor;
(d) wherein said control circuit when operating according to said second image capture operating mode captures a frame of image data having image data representing a larger portion of said area than said partial frame of image data captured by said control circuit when operating according to said first operating mode;
(e) wherein a frame rate of said bar code reading device when executing said first image capture mode is faster than a frame rate of said bar code reading device when executing said second image capture mode; and
(f) wherein said control circuit is configured to attempt to decode said bar code symbol utilizing both image data captured by said control circuit in said first image capture operating mode and image data captured by said control circuit in said second image capture mode. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A bar code reading device for reading a bar code symbol disposed within an area, said bar code reading device comprising:
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(a) an imaging assembly comprising a two dimensional image sensor having a plurality of pixels, said plurality of pixels formed in a plurality of rows of pixels, said image sensor having a set of pixels that generate electrical signals representing light incident on said image sensor when said bar code reading device operates in a full frame image capture mode, said imaging assembly having optics focusing an image onto said image sensor; and
(b) a control circuit coupled to said imaging assembly wherein said control circuit operates according to a first image capture operating mode and a second image capture operating mode;
(c) wherein said control circuit when operating according to said first image capture operating mode captures a partial frame of image data, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode corresponding to two dimensional grouping of pixels at or near a center of said image sensor;
(d) wherein said control circuit when operating according to said second image capture operating mode captures a frame of image data having image data representing a larger portion of said area than said partial frame of image data captured by said control circuit when operating according to said first operating mode;
(e) wherein a frame rate of said bar code reading device when executing said first image capture mode is faster than a frame rate of said bar code reading device when executing said second image capture mode; and
(f) wherein said control circuit is configured to attempt to decode said bar code symbol utilizing both image data captured by said control circuit in said first image capture operating mode and image data captured by said control circuit in said second image capture mode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A bar code reading device for reading a bar code symbol disposed within an area, said bar code reading device comprising:
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(a) an imaging assembly comprising a two dimensional image sensor having a plurality of pixels, said plurality of pixels formed in a plurality of rows of pixels, said image sensor having a set of pixels that generate electrical signals representing light incident on said image sensor when said bar code reading device operates in a full frame image capture mode, said imaging assembly having optics focusing an image onto said image sensor; and
(b) a control circuit coupled to said imaging assembly wherein said control circuit operates according to a first image capture operating mode and a second image capture operating mode;
(c) wherein said control circuit when operating according to said first image capture operating mode captures a partial frame of image data, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode having image data corresponding to light incident at less than all pixels of said set of pixels of said image sensor, said partial frame of image data captured by said control circuit when said control circuit operates according to said first image capture operating mode corresponding to at least one angularly oriented line grouping of pixels of said image sensor;
(d) wherein said control circuit when operating according to said second image capture operating mode captures a frame of image data having image data representing a larger portion of said area than said partial frame of image data captured by said control circuit when operating according to said first operating mode;
(e) wherein a frame rate of said bar code reading device when executing said first image capture mode is faster than a frame rate of said bar code reading device when executing said second image capture mode; and
(f) wherein said control circuit is configured to attempt to decode said bar code symbol utilizing both image data captured by said control circuit in said first image capture operating mode and image data captured by said control circuit in said second image capture mode. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification