Didier Yapi also designed and manufactured what he termed the Mystery Mouse 7°. This is a computer mouse that determines the age of its user. This device can, for instance, prevent minors accessing certain files or websites. Moreover, if two persons are not located in the same area or country, but both have a Mystery Mouse 7°, it can create a real greeting from a vibration sent over the Internet to the corresponding party via a specific communication interface.
Didier Yapi, from Côte d’Ivoire, was probably one of the most prolific IT inventors / researchers in Africa from 1998 onwards. Among his inventions there is the Dead Cryptor, the Mystery 7° Mouse, the Incorporated Keyboard 1 (IK1), etc. Unfortunately, Didier Yapi passed away on April 6, 2015. Only a few Africans can measure what Africa has lost with the untimely demise of this authentic genius.
In 2001, Didier Yapi did some research on CD-ROMs and DVDs to understand how they work and what they are made of. This was how he studied the organic matter that composes them. He then designed and manufactured the Dead Cryptor, a device which allows one to view and play the contents of a DVD or CD-ROM. The fascinating point, however, is that the contents played cannot be copied at all. A prototype was manufactured in 2003 which earned him international recognition. This device could have helped fight the piracy of copyrighted recordings, among others.
Source: Didier Yapi
This genius wanted to get rid of computer keyboards. To do so, he designed and manufactured the Incorporated Keyboard 1 (IK1) which is invisible, but accessible digitally in 4 dimensions on a flat and empty surface such as a desk. However, IK1 is, at present, suited to users who are already familiar with the location of keyboard keys on conventional keyboards. Indeed, the invisibility of IK1 requires the user to have a “mental projection” of the location of the keys on his desk while typing. A prototype of this technology exists and is operational.
The IK2, which was being developed before Didier Yapi passed away, would have helped users locate the invisible keyboard thanks to a light projection of the keyboard keys on the desk. So, every time a user would get closer to the computer, the invisible keyboard would light up on the desk; and, when s/he would move away from it, the keyboard would disappear.