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:
Apr. 03, 2012
Filed:
Dec. 04, 2007
Applicants:
Jean-eric Negre, Verrieres le Buisson, FR;
Emmanuel Senechal, Longpont sur Orge, FR;
Luc Fety, L'Epine Au Bois, FR;
Michel Terre, Paris, FR;
Inventors:
Jean-Eric Negre, Verrieres le Buisson, FR;
Emmanuel Senechal, Longpont sur Orge, FR;
Luc Fety, L'Epine Au Bois, FR;
Michel Terre, Paris, FR;
Assignee:
Sercel, Carquefou, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention proposes a data transmission process, from a first unit () situated at a predetermined depth of an oil well to a second unit () situated at the surface of this well, the process comprising a digital-analog conversion stage () of the data to obtain an analog signal forming support of the data, and an amplification stage () of this signal prior to its emission in a cable () connecting the two units,