What is the difference between tiling and high ECC?
A. Tiling is good when you only image a small portion of a dataglyph. For example, lets say you have a dataglyph tiled all over the surface of a shipping crate. If someone has a handheld dataglyph decoder (imagine something similar to a traditional 1D or 2D barcode scanner) they can point the handheld reader at any unobscured place on the surface and get a read — no precision aiming required. If the entire dataglyph is being imaged, and the goal is high decodability despite significant damage, real estate is usually better spent using a high ECC (error correction level) rather than tiling. Our error correction codes are good at handling arbitrary burst errors (as opposed to tile shaped burst errors!) and thus makes for a more flexible protection against arbitrary damage.
