The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2018
Filed:
Feb. 06, 2017
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Marco Lucamarini, Cambridge, GB;
Bernd Matthias Frohlich, Cambridge, GB;
Zhiliang Yuan, Cambridge, GB;
Andrew James Shields, Cambridge, GB;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
A transmitter for a continuous variable quantum communication system, the transmitter including a coherent light source and a first controller to apply a first signal to the coherent light source such that the coherent light source generates coherent light. The transmitter also including a first optical component to produce optical intensity modulation. The transmitter including a second controller to apply a second signal to the optical component such that a light pulse is emitted during a period of time that a first part of the generated light is received, and a light pulse is emitted during a period of time that a second part of the generated light is received. A phase control element and an intensity control element encode information in a continuum of values of the phase and amplitude of an emitted light pulse.