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:
Mar. 12, 2002
Filed:
Jul. 27, 1999
Régis Miquel, Grenoble, FR;
Patrice Garcia, Saint Martin d'Heres, FR;
STMicroelectronics S.A., Gentilly, FR;
Abstract
The present invention relates to a frequency conversion receiver at low intermediary frequency including a first analog mixer of a received signal with a signal coming from a local oscillator at a first conversion frequency and a second analog mixer of the incoming signal with the signal coming from the local oscillator out of phase by 90°. The receiver further includes, on the digital side, circuitry for detecting a possible phase difference and a possible gain difference between the signals of the two paths, the first conversion frequency corresponding to the central frequency of the received channel, plus half the channel frequency band.