Sensor array

• US 20020050518A1
• Filed: 02/02/2001
• Published: 05/02/2002
• Est. Priority Date: 12/08/1997
• Status: Abandoned Application

• Current Assignee: Alexander R. Roustaei
• Original Assignee: Alexander R. Roustaei
• Inventors: Roustaei, Alexander R.
• Application Number:
  US09/776,340
• Publication Number:
  US 20020050518A1
• Time in Patent Office: Days
• US Class Current: 235/454
• CPC Class Codes: G06K 7/10544 by scanning of the records by radiation in the optical part of the electromagnetic spectrum
• CPC Class Codes: G06K 7/10811 Focalisation
• CPC Class Codes: G06K 7/1098 the scanning arrangement having a modular construction

Abstract

An integrated system and method for reading image data. An optical scanner/image reader is provided for Grabbing Images, Storing Data And/Or Decoding Optical Information or Code, Including One And Two Dimensional Symbologies, At Variable depth Of Field, Featuring “On-Chip” Intelligent Including Sensor And Processing.

Claims

1. An optical image reading apparatus comprising:

at least one sensor, the sensor including a plurality of pixel elements, the pixel elements arranged in a substantially rectangular configuration;

an optical processor structured to convert the electrical signal into output data;

an image processor structured to receive the output data; and

a data processing unit structured to produce data representative of information located in the image, the data processing unit being responsive to the output data.

2. The apparatus of claim 1, wherein the pixel elements of the sensor are arranged in a substantially square configuration.

3. The apparatus of claim 1, wherein the pixel elements of the sensor are arranged in a 1K×

1K pixel array.

4. The apparatus of claim 1 wherein the pixel elements of the at least one sensor are arranged in an array comprising columns and rows of pixels, each row having a same number of pixel elements as each column.

5. The apparatus of claim 1 having a horizontal resolution and a vertical resolution, the horizontal resolution being substantially the same as the vertical resolution.

6. The apparatus of claim 1, further including a communication interface transmitting the output data to another system.

7. The apparatus of claim 1, wherein the output data describes a multi-bit digital value for each pixel element corresponding to discrete points within the image.

8. The apparatus of claim 1, wherein the data processing unit produces data representative of information located in an area of interest within the image.

9. The apparatus of claim 1, wherein the image processor is capable of generating indicator data from only a portion of the output data;

10. The apparatus of claim 1 further comprising a memory for storing the output data.

11. The apparatus of claim 1 wherein the apparatus is configured to perform the function of a digital camera.

12. The apparatus of claim 6 wherein the communication interface transmits at least one of raw image data, processed image data, and decoded information that was located in an area of interest within the image.

13. The apparatus of claim 6 wherein the communication interface receives data from another system.

14. The apparatus of claim 6 wherein the communication interface consists of at least one of an infra-red transceiver, a RF transceiver, and a transmitter for placing data onto an optical fiber and for receiving data from an optical fiber, or for placing data onto and receiving data from any other wired or wireless transmission system.

15. The apparatus of claim 1 wherein the image processor compresses the output data.

16. The apparatus of claim 15 wherein the compression includes binarization.

17. The apparatus of claim 15 wherein the compression includes run length coding.

18. The apparatus of claim 15 wherein the compression includes both binarization and run length coding.

19. The apparatus of claim 8 wherein by utilizing the indicator data the data processing unit can identify the type of information that exists in an area of interest.

20. The apparatus of claim 8 wherein by utilizing the indicator data the data processing unit can determine an angle that an area of interest makes with an orientation of the sensor.

21. The apparatus of claim 1 wherein the sensor and the optical processor are integrated on a single chip.

22. The apparatus of claim 1 wherein the sensor, the optical processor, and the image processor are integrated onto a single chip.

23. The apparatus of claim 1 wherein the sensor, the optical processor, the image processor, and the data processing unit are integrated onto a single chip.

24. The apparatus of claim 23 wherein the single chip is an ASIC.

25. The apparatus of claim 23 wherein the single chip is an FPGA.

26. The apparatus of claim 1 wherein the optical processor includes at least one analog to digital converter.

27. The apparatus of claim 1 further comprising an optical assembly comprising at least one lens, the optical assembly focusing light reflected from the image.

28. The apparatus of claim 27 wherein the at least one lens comprises a plurality of microlenses.

29. The apparatus of claim 1 further comprising a light source for projecting light onto the target image field.

30. An optical reading apparatus for reading machine readable code contained within a target image field, the optical reading apparatus comprising:

a light source projecting an incident beam of light onto the target image field;

an optical assembly comprising at least one lens disposed along an optical path, the optical assembly structured to focus the light reflected from the target field; and

a sensor positioned substantially within the optical path, the sensor having a plurality of sensor elements configured in a substantially rectangular array, and structured to sense an illumination level of the focused reflected light.

31. The optical reading apparatus of claim 30, wherein the sensor comprises a plurality of sensor elements arranged in a substantially square array.

32. The optical reading apparatus of claim 30, wherein each sensor element comprises at least one pixel element.

33. The optical reading apparatus of claim 30, wherein the sensor elements of the sensor are arranged in a 1K×

1K pixel array.

34. The optical reading apparatus of claim 30 wherein the pixel elements of the at least one sensor are arranged in an array comprising columns and rows of pixels, each row having a same number of pixel elements as each column.

35. The optical reading apparatus of claim 30 having a horizontal resolution and a vertical resolution, the horizontal resolution being substantially the same as the vertical resolution.

36. The optical reading apparatus of claim 30, further including an optical processor for processing the machine readable code using an electrical signal proportional to the illumination level received from the sensor, the optical processor structured to convert the electrical signal into output data.

37. The optical reading apparatus of claim 36, further including a data processing unit coupled with the optical processor, the data processing unit including a processing circuit for processing the output data to produce data representing the machine readable code.

38. The optical reading apparatus of claim 30, wherein the optical reading apparatus can read machine readable codes information selected from the group consisting of:

optical codes, one-dimensional symbologies, two-dimensional symbologies and three-dimensional symbologies.

39. The apparatus of claim 30 further comprising a frame locator means for directing the sensor to an area of interest in the target image field.

40. The apparatus of claim 30 wherein the data processing unit further comprises an integrated function means for high speed and low power digital imaging.

41. The apparatus of claim 37 wherein the optical assembly further includes an image processing means having auto-zoom and auto-focus means controlled by the data processing unit for determining an area of interest at any distance, using high frequency transition between black and white.

42. The apparatus of claim 37 wherein the data processing unit further comprises a pattern recognition means for global feature determination.

43. The apparatus of claim 30 wherein the optical processor includes an analog to digital converter circuit.

44. An optical reading apparatus for reading image information selected from a group consisting of optical codes, one-dimensional symbologies, two-dimensional symbologies and three-dimensional symbologies, the image information being contained within a target image field, the optical reading apparatus comprising:

a light source means for projecting an incident beam of light onto the target image field;

an optical assembly means for focusing the light reflected from the target field at a focal plane;

a substantially square sensor means for sensing an illumination level of the focused reflected light;

an optical processing means for processing the sensed target image to an electrical signal proportional to the illumination level received from the substantially square sensor and for converting the electrical signal into output data, the output data describing a multi-bit illumination level for each pixel element corresponding to discrete points within the target image field;

a logic device means for receiving data from the optical processing means and producing target image data; and

a data processing unit coupled with the logic device for processing the targeted image data to produce decoded data or raw data representing the image information.

45. The optical reading apparatus of claim 44, wherein the sensor means comprises a plurality of sensor elements arranged in a substantially square array.

46. The optical reading apparatus of claim 44, wherein each sensor element comprises at least one pixel element.

47. The apparatus of claim 44, wherein the sensor means comprises a plurality of pixel elements arranged in a 1K×

1K pixel array.

48. The optical reading apparatus of claim 44 wherein the pixel elements of the at least one sensor are arranged in an array comprising columns and rows of pixels, each row having a same number of pixel elements as each column.

49. The optical reading apparatus of claim 44 having a horizontal resolution and a vertical resolution, the horizontal resolution being substantially the same as the vertical resolution.

50. An optical image reading apparatus comprising:

at least one sensor, the sensor including a plurality of pixel elements, the pixel elements arranged in a first substantially circular configuration;

an optical processor structured to convert the electrical signal into output data;

an image processor structured to receive the output data; and

a data processing unit structured to produce data representative of information located in an image, the data processing unit being responsive to the output data.

51. The apparatus of claim 50, further comprising a second substantially circular configuration of the pixel elements, the second substantially circular configuration positioned in concentric relation to the first substantially ring shaped configuration, forming two concentric circles.

52. The apparatus of claim 50, further comprising a plurality of substantially circular configurations of the pixel elements, arranged concentrically with respect to each other.

53. The apparatus of claim 50 wherein:

the image comprises machine readable code; and

the output data corresponds to the machine readable code.

55. The apparatus of claim 50 wherein:

the image comprises machine readable code; and

the data representative of information contained in the image to the machine readable code.

54. An optical image reading apparatus comprising:

at least one sensor, the sensor including a plurality of pixel elements, the pixel elements arranged in a substantially rectangular configuration;

a data processing unit structured to produce data representative of information located in an image, the data processing unit being responsive to the output data.