Patent ID: 7639809

Claim:
A method to encode digital data intended for transmission by a particle flow of single particles, comprising the steps of: encoding digital data on a duration ΔT of said particle flow, and the duration ΔT has a conjugated parameter Δv that is a spectral width of said particle flow; and ensuring that said duration ΔT and said conjugated parameter Δv are in a minimum state (ΔT.Δv=1), wherein the encoding method comprises the conversion of the sequence of K bits of digital data into a train of K pulses of particle flows of duration ΔT and spectral width Δv satisfying the minimum state relation ΔT.Δv=1, whose frequency Tb, is predetermined knowing that each of the K pulses being shifted or not in time such that the k th pulse is shifted by a duration t0 respectively t1, with respect to the initial instant of the period depending on the value “0”, respectively “1” of the k th bit, where k is an integer such that 0≦k<K and the shifts t0 and t1 are such that 0≦t0,t1≦Tb−ΔT and 0<1t1−t01<ΔT.