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.:

US 7919959 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 05, 2011

Filed:

Dec. 01, 2009
Applicants:

Wen-yaw Chung, Taoyuan Hsien, TW;

Shao-chun Cheng, Taipei, TW;

Chiung-cheng Chuang, Taoyuan County, TW;

Febus-reidj Guinto Cruz, Chung Li, TW;

Dorota Genowefa Pijanowska, Nieporet, PL;

Inventors:

Wen-Yaw Chung, Taoyuan Hsien, TW;

Shao-Chun Cheng, Taipei, TW;

Chiung-Cheng Chuang, Taoyuan County, TW;

Febus-Reidj Guinto Cruz, Chung Li, TW;

Dorota Genowefa Pijanowska, Nieporet, PL;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 1/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A signal readout circuit comprises a first amplifier, a second amplifier and first to fourth transistors. The signal readout circuit has a first electrode, a second electrode, and a third electrode. The signal readout circuit applied in a wide current-sensing range of amperometric chemical sensing. The readout circuit may be applied in electrochemical sensing such as glucose, so as to read out a current signal of an amperometric sensor. Through a design of low input impedance, sensing signals in a wide current range can be sensed in the readout circuit. Also, a current mirror structure is used to copy the input current to an output current, such that an output signal range of the output signals of the current circuit is not limited by a supplied voltage.


Find Patent Forward Citations

Chung, Wen-Yaw. (2011). Signal readout circuit of amperometric sensor (U.S. Patent No. 7919959). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7919959

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