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. 03, 2019
Filed:
Jun. 12, 2018
Applicant:
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/11 (2013.01); H04B 10/516 (2013.01); H04B 10/116 (2013.01); H04B 10/50 (2013.01); H04B 10/114 (2013.01);
U.S. Cl.
CPC ...
H04B 10/5161 (2013.01); H04B 10/114 (2013.01); H04B 10/116 (2013.01); H04B 10/502 (2013.01); H04B 10/11 (2013.01);
Abstract
This invention relates to an emitter for an optical communication system such as a Li-Fi system. This emitter comprises an M-PAM modulator and a conversion module to convert an M-PAM symbol into a plurality of logical outputs. It also comprises a plurality of branches in parallel, each branch comprising a switched current source mounted in series with the optical source, each switched current source being controlled by a logical output from the conversion module.