US7945952B1
patent
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
31 claims. 53,843 characters of text.
patent
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
31 claims. 53,843 characters of text.