MeCard is a data file similar to vCard but used by NTT DoCoMo in Japan in QR code format for use with Cellular Phones.
It is largely compatible with most QR-readers for smartphones. It is an easy way to share a contact with the most used fields. Usually, devices can recognize it and treat it like a contact ready to import.
MeCard is based in UTF-8 (which is ASCII compatible); the fields are separated with one semicolon (;), and the tags are separated with a colon (:). Compared to vCard, it needs very few chars due to the size limitation of QR Codes.