Patent ID: 11956014
Assignee: UNIVERSITA' DEGLI STUDI DI MILANO
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. The method according to claim 17, wherein:
the amplitudes of the first modulation function a(t) and the at least one second modulation function b(t) may take the logical values 0 or 1;
the determined difference (ΔPab/k−ΔR/k′) may take:
a first expected value (ΔP10/k−ΔR/k′) when the first modulation function a(t) takes a value 1 and the second modulation function takes a value 0; or a second expected value (ΔP01/k−ΔR/k′) when the first modulation function a(t) takes a value 0 and the second modulation function takes a value 1; or a third expected value (ΔP11/k−ΔR/k′) when the first modulation function a(t) takes a value 1 and the second modulation function takes a value 1; or a fourth expected value (ΔP00/k−ΔR/k′) when the first modulation function a(t) takes a value 0 and the second modulation function takes a value 0;
the step of demodulating, demultiplexing and demodulating the modulated information comprises:
recognizing that the first modulated beam (Fm1) carries information corresponding to 1 and the second modulated beam (Fm2) carries information corresponding to 0 if the determined difference (ΔPab/k−ΔR/k′) takes said first expected value (ΔP10/k−ΔR/k′);
recognizing that the first modulated beam (Fm1) carries information corresponding to 0 and the second modulated beam (Fm2) carries information corresponding to 1 if the determined difference (ΔPab/k−ΔR/k′) takes said second expected value (ΔP01/k−ΔR/k′);
recognizing that the first modulated beam (Fm1) carries information corresponding to 1 and the second modulated beam (Fm2) carries information corresponding to 1 if the determined difference (ΔPab/k−ΔR/k′) takes said third expected value (ΔP11/k−ΔR/k′);
recognizing that the first modulated beam (Fm1) carries information corresponding to 0 and the second modulated beam (Fm2) carries information corresponding to 0 if the determined difference (ΔPab/k−ΔR/k′) takes said fourth expected value (ΔP00/k−ΔR/k′).