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:
Jun. 24, 2003
Filed:
Feb. 28, 2001
Applicant:
Inventor:
Chunyan Wang, Montreal, CA;
Assignee:
Valorbec, Limited Partnership, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/16 ;
U.S. Cl.
CPC ...
H03F 3/16 ;
Abstract
This invention relates to a method and apparatus for amplifying an input current into an output current. An input current is first injected in or pulled out of a transimpedance stage and converted, in a linear way, into an interstage voltage. The interstage voltage is then converted into the output current. The conversion of the interstage voltage into an output current is performed by maintaining a transistor in the triode mode to obtain a linear conversion as well as adding a current which comes from a current source.