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:
May. 01, 1979
Filed:
Sep. 26, 1977
Phillip W Ward, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A system of land (field) seismic exploration which eliminates the requirement for a main land cable to transmit seismic data from the sensors to a central recorder is disclosed. The system includes: a seismic source for generating seismic energy; a data acquisition unit for collecting seismic information; and a master control and collating unit for transmitting coded identification and command signals to the source and data acquisition units and collating the data from the individual tapes of the data acquisition units. Each data acquisition unit includes its own controller, sensor group, analog to digital converter, signal conditioner data recorder, and radio frequency receiver. The analog to digital converter includes a plurality of bounded amplifiers to provide a number of fixed gain stages operative throughout a 120 db dynamic range. The signal conditioner includes a large scale integrated metal oxide semiconductor chip processor for performing desired seismic data processing functions.