System for downloading data using video
View Patent ↗A system for synchronizing data between two devices. A first device displays a data stream as a sequence of one or more two-dimensional frames on a video screen attached thereto, wherein each of the two-dimensional frames is comprised of at least one two-dimensional shape of varying color that represents at least one data element within the data stream. A second device having an image sensing device coupled thereto captures images from the displayed sequence of two-dimensional frames and for decodes the data elements from the captured images.
1. A system for synchronizing data between two devices, comprising:
(a) a first device for displaying a data stream as a sequence of one or more two-dimensional frames on a video screen attached thereto, wherein each of the two-dimensional frames is comprised of at least one two-dimensional shape that represents at least one data element within the data stream; and
(b) a second device having an image sensing device coupled thereto for capturing two-dimensional images from the displayed data stream using the image sensing device and for decoding the data elements from the captured two-dimensional images.
2. The system of claim 1 , wherein the sequence of two-dimensional frames is displayed by a web browser.
3. The system of claim 1 , wherein the sequence of two-dimensional frames is displayed by a standalone program.
4. The system of claim 1 , wherein each of the two-dimensional frames is comprised of start-of-frame and end-of-frame sequences.
5. The system of claim 1 , wherein the first device displays the sequence of two-dimensional frames one at a time on the video screen.
6. The system of claim 1 , wherein the data elements are encoded for error correction prior to being displayed.
7. The system of claim 1 , wherein the data elements are encrypted for security prior to being displayed.
8. The system of claim 1 , wherein the colors are extremes in value.
9. The system of claim 1 , wherein the first device is connected to a network and the data stream is generated from data stored on the network.
10. The system of claim 1 , wherein the second device identifies a pattern of data elements within the captured two-dimensional image by searching for a border of the frame.
11. The system of claim 1 , wherein the second device determines a scaling factor for the captured two-dimensional image from the identified pattern of data elements.
12. The system of claim 1 , wherein the second device computes an alignment correction for the captured two-dimensional image by searching for expected color sequences in the frame, and then rotating and shifting the captured two-dimensional image so that it is properly aligned.
13. The system of claim 1 , wherein the second device computes a size for the data elements based upon a width and height of the frame identified in the captured two-dimensional image.
14. The system of claim 1 , wherein the second device corrects for a curvature of the video screen based upon the frame identified in the captured two-dimensional image.
15. A portable digital device, comprising:
(a) a processor having an image sensing device coupled thereto; and
(b) means, performed by the processor, for capturing at least one two-dimensional image from a sequence of one or more two-dimensional frames displayed on a video screen using the image sensing device, wherein each of the two-dimensional frames is comprised of at least one two-dimensional shape that represents at least one data element within a data stream, and for decoding the data elements from the captured two-dimensional image.
16. The system of claim 15 , wherein each of the two-dimensional frames is comprised of start-of-frame and end-of-frame sequences.
17. The system of claim 15 , wherein the sequence of two-dimensional frames are displayed one at a time on the video screen.
18. The system of claim 15 , wherein the data elements are encoded for error correction prior to being displayed.
19. The system of claim 15 , wherein the data elements are encrypted for security prior to being displayed.
20. The system of claim 15 , wherein the colors are extremes in value.
21. The system of claim 15 , wherein the data stream is generated from data stored on a network.
22. The system of claim 15 , further comprising means for identifying a pattern of data elements within the captured two-dimensional image by searching for a border of the frame.
23. The system of claim 15 , further comprising means for determining a scaling factor for the captured two-dimensional image from the identified pattern of data elements.
24. The system of claim 15 , further comprising means for computing an alignment correction for the captured two-dimensional image by searching for expected color sequences in the frame, and then rotating and shifting the captured two-dimensional image so that it is properly aligned.
25. The system of claim 15 , further comprising means for computing a size for the data elements based upon a width and height of the frame identified in the captured two-dimensional image.
26. The system of claim 15 , further comprising means for correcting for a curvature of a video screen based upon a frame identified in the captured two-dimensional image.
27. A digital display system, comprising:
(a) a processor having a video screen coupled thereto; and
(b) means, performed by the processor, for displaying a data stream as a sequence of one or more two-dimensional frames on the video screen, wherein each of the two-dimensional frames is comprised of at least one two-dimensional shape that represents at least one data element within the data stream, at least one two-dimensional image is captured from the displayed data stream by an image sensing device coupled to a second device, and the data elements are decoded from the at least one captured two-dimensional image by the second device.
28. The system of claim 27 , wherein the sequence of two-dimensional frames is displayed by a web browser.
29. The system of claim 27 , wherein each of the two-dimensional frames is comprised of start-of-frame and end-of-frame sequences.
30. The system of claim 27 , wherein the sequence of two-dimensional frames are displayed one at a time on the video screen.
31. The system of claim 27 , wherein the data elements are encoded for error correction prior to being displayed.
32. The system of claim 27 , wherein the data elements are encrypted for security prior to being displayed.
33. The system of claim 27 , wherein the colors are extremes in value.
34. The system of claim 27 , wherein the processor is connected to a network and the data stream is generated from data stored on the network.