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. 15, 1997
Filed:
Jul. 07, 1995
Applicant:
Inventors:
Timothy B Rigsby, Fulshear, TX (US);
Joe I Sanders, Sugarland, TX (US);
Assignee:
PGS Ocean Bottom Seismic, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
367 22 ; 367 24 ; 364421 ;
Abstract
A method of processing data from a co-located hydrophone-geophone pair of seismic receivers of an ocean-bottom cable system. Ambient noise is obtained for the hydrophone and geophone. A relative noise signal is determined by finding the normalized difference between geophone and hydrophone noise signals. Geophone and hydrophone data signals are then scaled by an amount equal to the relative noise signal.