US7945952B1
патент
Methods and apparatuses to tell humans and machines apart. In one embodiment, automated determination of whether a human or machine is at the other end of a communication
Притязаний: 31. Знаков текста: 53 843.
патент
Methods and apparatuses to tell humans and machines apart. In one embodiment, automated determination of whether a human or machine is at the other end of a communication
Притязаний: 31. Знаков текста: 53 843.