Friends who like cars should be familiar with Toyota's kanban management system.
1997, in Toyota, Japan, Denso, a subsidiary of Toyota, developed a two-dimensional code, which contains more information than bar code, in order to realize the electronization of Kanban management system.
Unlike Microsoft in the United States, Denso in Japan does not monopolize this technology. Not only Toyota is using this technology, but Denso Corporation of Japan has also put forward a strategy to promote QR codes.
This also includes free public software for making QR codes. Denso Japan only keeps scanners that sell QR codes.
Now it's China 20 10, and smart phones have become very popular in China. Reading codes with a camera is carried out quietly in China.
The earliest mobile payment, China has its own independent code, but because of security risks, after many comparisons, it chose QR code instead of independent code.
This is not only because the QR code has advantages in security performance, but also because Denso Corporation of Japan does not charge patent fees, but discloses the QR code technology for free.
If Denso in Japan also has the patent fee of QR code, like Microsoft in the United States. Then the use of China QR code should not be what it is today.
So far, the coding of similar QR codes in Microsoft in the United States is still charged. If there is no charge for the code similar to QR code of Microsoft in the United States, it is not necessarily the code of Microsoft in the United States that is widely promoted now.