1.MPP Protocol
The Microsoft Pen Protocol (MPP) is an attempt to get over the confusion between two incompatible pen technologies, from Wacom and N-trig (now owned by Microsoft and used in Surface devices), and it means we're seeing more third-party pens on the market that work with any MPP device.
Microsoft Pen Protocol Program Features:
- Off-the-shelf solution for Windows Ink compatibility
- High quality, power-efficient, affordable pens
- All pens/devices that speak the Microsoft Pen Protocol work together!
2.USI Protocol
USI is the abbreviation of Universal Stylus Initiative. This touch protocol has the following characteristics:
1. Two-way communication
Touch writing relies on the signal interaction between the pen and the screen house. In the one-way protocol (such as Microsoft's MPP1.0, etc.), the pen is only a signal transmitter, which sends the position, pressure and other information to the screen and converts it into ink handwriting. When there is signal interference of similar frequency next to the device, a single communication will be interfered. When the end user writes, there will be signs of disconnection, skipping, etc., which will affect the user experience. The two-way communication enables the stylus not only to transmit signals, but also to receive signals. The anti-interference ability is enhanced, and users can better exert their creativity.
2. Compatibility
The two-way communication protocol can store user preferences such as ink color and handwriting in the stylus. Even when writing on different devices, there is no need to reset the format, ink and other attributes, allowing users to enjoy a seamless experience on different hardware devices. .
3. Scalability
The protocol supports 4096-level pressure sensitivity, which can achieve ultra-precise user writing response, and at the same time reserves 9 extended functions for accessing inertial measurement data, which reserves a lot of space for product design differentiation.
