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. 11, 1978
Filed:
Nov. 18, 1976
Applicant:
Inventor:
Wayne A Penner, Carrollton, TX (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
340 / ; 340 / ; 360-6 ;
Abstract
A seismic recording system employs amplifiers, a multiplexer, and an analog-to-digital converter for converting analog seismic reflection signals obtained during seismic exploration operations to a serial output of multiplexed digital samples. An input controller restores to the digital samples the original amplitude of the seismic signals as they were received by the field recorder and scales the digital samples for later compositing into a seismic record in a central processing unit. An output controller then applies to each digital sample in the composite record a desired gain prior to recording on a magnetic tape unit.