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:
Feb. 05, 2013
Filed:
Dec. 31, 2007
Hyun-key Jung, Daejeon, KR;
Hyun-Key Jung, Daejeon, KR;
Korea Institute of Geoscience & Mineral Resources, Daejon, KR;
Abstract
An apparatus and method for automatic control of current electrodes in a measuring system for an electrical resistivity survey. An exemplary apparatus includes: a circuit where one pair of metal oxide semiconductor field effect transistors (MOSFETs) are connected to upper and lower terminals of n current electrodes and the one pair of MOSFETs are connected in parallel with each other; and a controller which controls ON/OFF of each MOSFET. With this, the present invention provides a stable and semipermanent apparatus for automatic control of current electrodes, which is capable of bipolar high-speed switching, and a method thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile