US 7,460,669 B2
Encoding, decoding and communication method and apparatus
Clare Louise Foden, Cambridge (United Kingdom); Andrew James Shields, Cambridge (United Kingdom); and David Mark Whittaker, Cambridge (United Kingdom)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan)
Filed on Oct. 25, 2001, as Appl. No. 9/983,700.
Claims priority of application No. 0026141 (GB), filed on Oct. 25, 2000.
Prior Publication US 2002/0097874 A1, Jul. 25, 2002
Int. Cl. H04L 9/00 (2006.01)
U.S. Cl. 380—256 55 Claims
OG exemplary drawing
 
1. A method of encoding at least two bits of information on a single photon, the method comprising the step of setting at least two parameters of the photon to respectively correspond to the at least two bits of information such that the at least two bits of information are encoded onto the photon using the at least two parameters.