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pts principal Q&A

back to the PTS Principal

1- Underlying Pressenk Technology
The PTS works on the principal of having a human operator acting as the ground of a circuit. By touching a “key” or “sensor pad” he brings a floating ground to bear on it and creates a positive touch.

2- How does the Pressenk solution differentiate itself from others in the market today?
By relying directly on a human body to create the touch through picking up the signal and relaying it to the sensor pad, the PTS can eliminate any possibility of false activations, be they from animals, foreign matter, and so forth.

3- How is the Pressenk solution superior to other solutions?
The PTS does not require special software calibration to allow for fluctuating environmental or EMI situations as do magnetic or field effect technologies, and simply eliminates the chances of false activation inherent in conventional capacitive technologies. The engineering and design parameters required to properly implement PTS are much simpler than competitive technologies, and the basic principal ensures complete reliability and predictable performance over the lifetime of the end product. It can operate through any dielectric material with an effective thickness up to 1”, has been tested to over 20 million cycles, and depends on a single resistor and transistor per key to function, keeping material costs very low.

4- A) How would the end user implement the Pressenk IP?
At minimum, Pressenk can design the appropriate software and parameters required to integrate the PTS keypad into the end user product, or Pressenk can provide a complete turnkey keypad which is ready for integration.

B) How flexible is the solution?
The PTS design can be easily adapted for use in any electrically powered device operating in any environment. As compared with the competitive technologies, it is easily the most flexible.

C) How would Pressenk middleware be integrated with the end user application code? Source code? Libraries?
The PTS software is extremely simple and requires very little adaptation. It can reside in an existing microcontroller and operate in tandem with existing applications.

D) Is the Pressenk middleware timing critical (does the user application have to work around the needs of the
Pressenk middleware?)

This depends on what the user applications are. With respect to the PTS requirements there is no disruption of the end user application whatsoever as long as the user application allows for sending a pulse to earth ground which can be returned by a human operator (the basic requirements
of the PTS).

5- What are the anticipated minimum MCU requirements
Due to the extremely simple nature of the PTS software, only the most rudimentary of 8 bit microcontrollers is required for operation, depending on the complexity of the end user function.