Camera system with color display and processor for reed-solomon decoding

• US 8,953,178 B2
• Filed: 09/15/2012
• Issued: 02/10/2015
• Est. Priority Date: 07/15/1997
• Status: Expired due to Fees

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Silverbrook, Kia
• Primary Examiner(s): Poon, King
• Assistant Examiner(s): Menberu, Beniyam
• Application Number:
  US13/620,895
• Publication Number:
  US 20130021444A1
• Time in Patent Office: 878 Days
• Field of Search: None
• US Class Current: 358/1.1
• CPC Class Codes: B41J 15/044 Cassettes or cartridges containing continuous copy material, tape, for setting into printing devices
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• CPC Class Codes: B41J 2/16585 for paper-width or non-reciprocating print heads
• CPC Class Codes: B41J 2/175 : Ink supply systems ; Circuit parts therefor
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• CPC Class Codes: Y10S 358/9091 : Electronic still camera or scene reproducer

Abstract

A handheld digital camera device including: a digital camera unit having a first image sensor for capturing images and a color display for displaying captured images to a user; an integral processor configured for: controlling operation of the first image sensor and color display; decoding an imaged coding pattern printed on a substrate, the printed coding pattern employing Reed-Solomon encoding; and performing an action in the handheld digital camera device based on the decoded coding pattern. The decoding includes the steps of: detecting target structures defining an extent of a data area; determining the data area using the detected target structures; and Reed-Solomon decoding the coding pattern contained in the determined data area.

Claims

1. A portable digital camera device comprising:

a digital camera unit comprising a first image sensor for capturing images and a color display for displaying captured images to a user; and

an integral processor configured for;

controlling operation of the first image sensor and color display;

decoding an imaged coding pattern printed on a substrate, said printed coding pattern employing Reed-Solomon encoding; and

performing an action in said handheld digital camera device based on the decoded coding pattern,

wherein said decoding comprises the steps of;

detecting target structures defining an extent of a data area;

determining the data area using the detected target structures; and

Reed-Solomon decoding the coding pattern contained in the determined data area,

wherein the action performed in said device is an image-warping effect.

2. The portable digital camera device of claim 1, further comprising a second image sensor.

3. The portable digital camera device of claim 2, wherein the second image sensor is configured for imaging the coding pattern.

4. The portable digital camera device of claim 2, wherein said first and second image sensors are configured for capturing stereoscopic digital images.

5. The portable digital camera device of claim 1, wherein said processor is configured to perform said Reed-Solomon decoding in less than 0.32 seconds.

6. The portable digital camera device of claim 1, wherein said decoding comprises the further step of:

determining one or more control blocks in the data area, said control blocks containing encoded information required for subsequent Reed-Solomon decoding.

7. The portable digital camera device of claim 6, wherein each control block contains encoded information regarding the size of data to be extracted from the data area.

8. The portable digital camera device of claim 1, wherein said Reed-Solomon decoding corrects for one or more errors in the imaged coding pattern.