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:
Jul. 15, 2003
Filed:
Aug. 28, 2000
Applicant:
Inventor:
Jean-Charles Grasset, Moirans, FR;
Assignee:
STMicroelectronics S.A., Gentilly, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 ; H04B 1/38 ; H04B 1/26 ;
U.S. Cl.
CPC ...
H03F 3/45 ; H04B 1/38 ; H04B 1/26 ;
Abstract
The residual quantity of a local oscillator signal in the output signal from a frequency transposition device having a differential Gilbert type structure is reduced by biasing the transistors of the output stage of the differential transconductor block of the device. The biasing is performed by carrying out differential slaving of the conduction terminal of these transistors to a predetermined common mode current.