Imaging reader and method with combined image data and system data

• US 8,622,304 B2
• Filed: 01/26/2009
• Issued: 01/07/2014
• Est. Priority Date: 01/26/2009
• Status: Active Grant

• Current Assignee: Symbol Technologies, LLC (Zebra Technologies Corporation)
• Original Assignee: Symbol Technologies, Inc. (Zebra Technologies Corporation)
• Inventors: Goren, David P., Brock, Christopher Warren
• Primary Examiner(s): Hess, Daniel
• Assistant Examiner(s): Savusdiphol, Paultep
• Application Number:
  US12/321,953
• Publication Number:
  US 20100187315A1
• Time in Patent Office: 1,807 Days
• Field of Search: 235/435, 235/454, 235/462.01, 235/462.09, 235/462.45, 235/462.11, 235/462.24, 235/462.25, 235/462.41
• US Class Current: 235/462.25
• CPC Class Codes: G06K 7/14 using light without selection of wavelength, e.g. sensing reflected white light G06K7/10831 - G06K7/1097 take precedence

Abstract

An imaging reader for, and a method of, imaging targets, include a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a target over a field of view, and for generating image data corresponding to the target; an application specific integrated circuit (ASIC) operatively connected to the imager via an image data bus over which the image data is transmitted from the imager to the ASIC, and via a system bus over which system data for controlling operation of the reader is transmitted, the ASIC being operative for combining the image data and the system data to form combined data; and a controller operatively connected to the ASIC, for receiving and processing the combined data from the ASIC.

Claims

1. An imaging reader for imaging targets, comprising:

a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a target over a field of view, and for generating image data corresponding to the target;

an application specific integrated circuit (ASIC) operatively connected to the imager via an image data bus over which the image data is transmitted from the imager to the ASIC, and via a system bus over which system data for controlling operation of the reader is transmitted, the ASIC being operative for combining the image data and the system data to form combined data in one frame;

a controller operatively connected to the ASIC, for receiving the combined data in one frame when a signal received by the controller indicates that the one frame is valid, and for processing the combined data from the ASIC; and

wherein the system data includes at least one of (1) data specifying an exposure time period for the imager, (2) data specifying a gain for the imager, (3) data specifying a focal length for an imaging lens assembly, (4) data specifying an illumination time period for the illumination light, (5) data specifying an intensity level for an illumination light, (6) data specifying an aiming time period for an aiming light, (7) data specifying an intensity level for an aiming light, and (8) data specifying a decode restriction.

2. The reader of claim 1, wherein at least one of the controller and the ASIC is operative for determining the system data.

3. The reader of claim 1, wherein the system bus between the imager and the ASIC is bi-directional.

4. The reader of claim 1, wherein the ASIC is operatively connected to the controller via a combined data bus over which the combined data is transmitted from the ASIC to the controller, and via another system bus over which the system data for controlling operation of the reader is transmitted between the ASIC and the controller.

5. The reader of claim 4, wherein the other system bus between the ASIC and the controller is bi-directional.

6. The reader of claim 1, wherein the ASIC forms the combined data by appending the system data to the image data.

7. The reader of claim 1, wherein the ASIC forms the combined data by overwriting the system data on part of the image data.

8. The reader of claim 1, wherein the controller processes the combined data by separating, and separately processing, the system data and the image data.

9. The reader of claim 1, wherein the system data further includes at least one of a de-skewing parameter, a re-sampling parameter, an enhancing parameter, and a data compression parameter.

10. An imaging reader for imaging targets, comprising:

an imaging system having a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a target over a field of view, and for generating image data corresponding to the target, the imaging system being operative for combining the image data and system data for controlling operation of the reader to form combined data in one frame;

a controller operatively connected to the imaging system, for receiving the combined data in one frame when a signal received by the controller indicates that the one frame is valid, and for processing the combined data from the imaging system; and

wherein the system data includes at least one of (1) data specifying an exposure time period for the imager, (2) data specifying a gain for the imager, (3) data specifying a focal length for an imaging lens assembly, (4) data specifying an illumination time period for the illumination light, (5) data specifying an intensity level for an illumination light, (6) data specifying an aiming time period for an aiming light, (7) data specifying an intensity level for an aiming light, and (8) data specifying a decode restriction.

11. A method of imaging targets with an imaging reader, comprising the steps of:

capturing return light from a target over a field of view of a solid-state imager having an array of image sensors, and generating image data corresponding to the target;

operatively connecting an application specific integrated circuit (ASIC) to the imager via an image data bus over which the image data is transmitted from the imager to the ASIC, and via a system bus over which system data for controlling operation of the reader is transmitted, and combining the image data and the system data with the ASIC to form combined data in one frame;

receiving the combined data in one frame when a signal received by the controller indicates that the one frame is valid;

processing the combined data from the ASIC at a controller operatively connected to the ASIC; and

wherein the system data includes at least one of (1) data specifying an exposure time period for the imager, (2) data specifying a gain for the imager, (3) data specifying a focal length for an imaging lens assembly, (4) data specifying an illumination time period for the illumination light, (5) data specifying an intensity level for an illumination light, (6) data specifying an aiming time period for an aiming light, (7) data specifying an intensity level for an aiming light, and (8) data specifying a decode restriction.

12. The method of claim 11, and a step of determining the system data by at least one of the controller and the ASIC.

13. The method of claim 11, and a step of configuring the system bus between the imager and the ASIC to be bi-directional.

14. The method of claim 11, and a step of operatively connecting the ASIC to the controller via a combined data bus over which the combined data is transmitted from the ASIC to the controller, and via another system bus over which the system data for controlling operation of the reader is transmitted between the ASIC and the controller.

15. The method of claim 14, and a step of configuring the other system bus between the ASIC and the controller to be bi-directional.

16. The method of claim 11, wherein the step of forming the combined data is performed by appending the system data to the image data.

17. The method of claim 11, wherein the step of forming the combined data is performed by overwriting the system data on part of the image data.

18. The method of claim 11, wherein the step of processing the combined data is performed by separating, and separately processing, the system data and the image data.

19. The method of claim 11, wherein the system data further includes at least one of a de-skewing parameter, a re-sampling parameter, an enhancing parameter, and a data compression parameter.