Back in 2006, I talked about generating semacode for your blog. More recently, it seems that QR codes have become more ubiquitous in the States. For the uninitiated, this Wikipedia entry explains it well:
A QR Code is a matrix code (or two-dimensional bar code) created by Japanese corporation Denso-Wave in 1994. The “QR” is derived from “Quick Response”, as the creator intended the code to allow its contents to be decoded at high speed. QR Codes are common in Japan where they are currently the most popular type of two dimensional code.
QR Codes storing addresses and URLs may appear in magazines, on signs, buses, business cards or just about any object that a user might need information about. A user having a camera phone equipped with the correct reader software can scan the image of the QR Code causing the phone’s browser to launch and redirect to the programmed URL. This act of linking from physical world objects is known as a hardlink or physical world hyperlinks.
I’d love to start printing name cards and t-shirts with these visual bookmarks, so anyone could simply snap and decode using their camera phone, then pull down a URL of my blog or more directly, a personal hCard.
Key differences between Semacode vs. QR Codes:
1) QR code is popular in Japan, while Semacode is popular outside Japan
2) QR code is open and can store more types of information, while Semacode is developed to store just URLs (Note: debated issue as URLs are pretty open too).
Here are some relevant places you can go to have fun with QR codes:
To generate QR codes for URL, Text, Phone number or SMS, go to qrcode.kaywa.com/
To read QR codes on your iPhone, go to code.google.com/p/iphone-qrcode/
To read QR codes on your camera phone, download via reader.kaywa.com/phones
To learn how QR codes work, see en.wikipedia.org/wiki/QR_Code
Can’t wait to see everthing tagged with QR codes… I think we should have these generators built into sticky label makers!