Cell phone reading mode using image timer

• US 9,087,250 B2
• Filed: 07/11/2014
• Issued: 07/21/2015
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Coyle, Larry
• Primary Examiner(s): Haupt, Kristy A
• Application Number:
  US14/329,303
• Publication Number:
  US 20140319220A1
• Time in Patent Office: 375 Days
• Field of Search: 235/462.15, 235/462.18, 235/462.2, 235/462.24, 235/462.41
• US Class Current: 1/1
• CPC Class Codes: G06K 7/10752 Exposure time control
• CPC Class Codes: G06Q 20/3276 using a pictured code, e.g. barcode or QR-code, being read by the M-device

Abstract

An system contains an image capture device configured to capture an image. The system includes a lighting and exposure mechanism. The system also includes a camera sensor interface with a stat FIFO. The stat FIFO is configured to receive data from the image capture device. When the stat FIFO, during image scanning, receives a pre-determined amount of image data, it fires an interrupt, which times the lighting and exposure mechanism in the system.

Claims

1. A system, comprising:

an image capture device configured to capture an image and transmit image data, the image capture device comprising a lighting and exposure mechanism; and

a camera sensor interface configured to receive image data from the image capture device, the camera sensor interface comprising a stat FIFO;

wherein the stat FIFO is configured to;

receive image data from the image capture device; and

responsive to receiving a pre-determined portion of the image data, send an interrupt to the lighting and exposure mechanism;

wherein the lighting and exposure mechanism, responsive to receiving the interrupt, turns on and off; and

wherein the pre-determined portion of the image data is determined by defining a threshold number of pixels per image block in the stat FIFO.

2. The system of claim 1, wherein the interrupt marks the start of a frame in a captured image and/or the end of a frame in a captured image.

3. The system of claim 1, wherein the image data is provided a raw image byte stream, a compressed image byte stream, and/or a partial compressed image byte stream.

4. The system of claim 1, wherein the interrupt is configured by vertical blank timing in the camera sensor interface.

5. The system of claim 1, wherein the pre-determined portion of the image data comprises one twelfth of a captured image.

6. The system of claim 1, wherein the lighting and exposure mechanism comprises an LED and an aimer.

7. The system of claim 1, wherein the image capture device comprises a camera and/or an optical scanner.

8. A method of utilizing a system comprising a camera sensor interface having a stat FIFO, the method comprising:

allocating blocks in the camera sensor interface'"'"'s stat FIFO to receive image data when the system is utilized to capture an image;

determining a threshold number of pixels per allocated block;

configuring the stat FIFO to receive the threshold number of pixels of the image data per each of the allocated blocks;

configuring the stat FIFO to provide an interrupt each time the threshold number of pixels of image data is received by the stat FIFO, wherein the interrupt instructs a lighting and exposure mechanism to turn on or off; and

capturing an image.

9. The method of claim 8, wherein the lighting and exposure mechanism comprises an LED and an aimer.

10. The method of claim 8, wherein the image data is provided a raw image byte stream, a compressed image byte stream, and/or a partial compressed image byte stream.

11. The method of claim 8, wherein the threshold number of pixels of image data is reached 12 times while capturing an image.

12. The method of claim 8, comprising utilizing vertical blank timing in the CSI to time the lighting and exposure mechanism.

13. The method of claim 8, wherein the interrupt marks the start of a frame in a captured image and/or the end of a frame in a captured image.

14. The method of claim 8, wherein the system comprises a camera and/or an optical scanner.

15. A system, comprising:

an image capture device configured to capture an image and transmit image data, the image capture device comprising a camera and a lighting and exposure mechanism; and

a camera sensor interface configured to receive image data from the image capture device, the camera sensor interface comprising a stat FIFO;

wherein the stat FIFO is configured to;

receive image data from the image capture device; and

responsive to receiving a pre-determined portion of the image data, send an interrupt to the lighting and exposure mechanism;

wherein the lighting and exposure mechanism, responsive to receiving the interrupt, turns on and off; and

wherein the pre-determined portion of the image data is determined by defining a threshold number of pixels per image block in the stat FIFO.

16. The system of claim 15, wherein the interrupt marks the start of a frame in a captured image and/or the end of a frame in a captured image.

17. The system of claim 15, wherein the image data is provided a raw image byte stream, a compressed image byte stream, and/or a partial compressed image byte stream.

18. The system of claim 15, wherein the interrupt is configured by vertical blank timing in the camera sensor interface.

19. The system of claim 15, wherein the pre-determined portion of the image data comprises one twelfth of a captured image.

20. The system of claim 15, wherein the lighting and exposure mechanism comprises an LED and an aimer.