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:
Nov. 25, 2014
Filed:
Jun. 03, 2014
Texas Instruments Incorporated, Dallas, TX (US);
Arup Polley, Richardson, TX (US);
Pankaj Pandey, McKinney, TX (US);
Bryan Bloodworth, Coppell, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A circuit includes an input that receives a current that increases as a tunneling current sensor moves closer to a media. A high gain path is operatively coupled to the input to amplify the received current as a first amplified output. The first amplified output increases until a saturation threshold is attained for the high gain path. Further increases in the received current beyond the saturation threshold are diverted from the input as an overflow current. A low gain path is operatively coupled to the input to amplify the overflow current as a second amplified output. The second amplified output increases with the overflow current as the tunneling current sensor continues to move closer to the media.