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. 21, 2017
Filed:
Jun. 23, 2015
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventor:
Yoshiyuki Sugimoto, Yokohama, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/08 (2006.01); H04B 10/079 (2013.01); H03F 1/08 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H04B 10/0797 (2013.01); H03F 1/083 (2013.01); H03F 3/08 (2013.01); H03F 3/45475 (2013.01); H03F 2200/375 (2013.01); H03F 2200/453 (2013.01); H03F 2200/462 (2013.01); H03F 2203/45288 (2013.01);
Abstract
A TIA comprises a TIA core that converts a current signal to a voltage signal, a single-to-differential converter that generates a differential voltage signal from the voltage signal, a feedback circuit that generates a control signal from the differential voltage signal, a bypass circuit that generates the current signal by subtracting the bypass current from the input current so that an average value of the current signal is maintained at a predetermined value, and a monitor circuit that generates a monitor current proportional to the bypass current from the control signal.