Theory behind Elechouse VR 3

Hi all, I really need this info which is related to Elechouse VR 3 module. Does anyone know the theory behind this module such as detection method used, recognize method, decoder and so on. Please help me on this I really need this.

This should help…

https://www.elechouse.com/elechouse/index.php?main_page=product_info&products_id=2254

It wasn’t too had to find.

I found this also but this is just the simple explanation. I need the detail explanation on the decoder type, recognition type, and so on

I wasn’t going to entertain this too far, but…

That should help…

I see. I need it for me to do my literature review in my Final year project

The documents linked in the web site should have everything you need.