Patent ID: 6862018

Claim:
A system with cordless pressure-sensitivity and electromagnetic-induction, said system comprising: a first sub-circuit for generating a control signal, wherein said first sub-circuit having a frequency control bus, an I/O control terminal, and an antenna address bus; a second sub-circuit coupled to receive said control signal for generating a specific frequency, and coupled to said frequency control bus; a third sub-circuit coupled to receive said control signal and receive said specific frequency in accord with control signal, and coupled to said I/O control terminal, wherein said third sub-circuit comprises a two-gate control sub-circuit comprises a plurality or one-way gates whose transmitting directions are different from each other; a fourth sub-circuit coupled to receive control signal and receive said specific frequency from said third sub-circuit in accord with said control signal, and coupled to said antenna address bus, wherein said fourth sub-circuit comprises a sub-circuit for switching antenna; and an antenna loop, said fourth sub-circuit coupled to control said antenna loop, so as to emit the electromagnetic wave with said specific frequency via said antenna loop.