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. 20, 2011
Filed:
Jan. 26, 2010
Applicant:
Martin Laycock, Asker, NO;
Inventor:
Martin Laycock, Asker, NO;
Assignee:
Westerngeco L.L.C., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/02 (2006.01); G01V 1/147 (2006.01);
U.S. Cl.
CPC ...
Abstract
A technique or mechanism for use with a vibrator to be employed for subterranean surveying includes receiving, from a sensor, a unipolar indication of movement of an actuator mass of the vibrator. According to the indication from the sensor, a correlation is determined between the movement of the actuator mass and a reference signal provided to cause movement of the actuator mass.