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:
Jan. 06, 2009
Filed:
Aug. 11, 2004
Pierre Busson, Grenoble, FR;
Bruno Paille, Saint Aupre, FR;
Pierre Busson, Grenoble, FR;
Bruno Paille, Saint Aupre, FR;
STMicroelectronics, SA, Montrouge, FR;
Abstract
An input/output terminal receives a multi-channel analog signal within a predetermined frequency band, and transmits a single-channel analog signal within this frequency band. A tuning module has a reception channel based upon a two-stage down conversion to baseband, and is connected between the input/output terminal and an analog-to-digital conversion stage. A transmission channel based upon a two-stage up conversion is connected between a digital-to-analog conversion stage and the input/output terminal. The two channels include a common filter of the bulk acoustic wave type or of the surface acoustic wave type between the two frequency transposition stages of the two channels. A digital reception unit is connected to the output of the analog-to-digital conversion stage, and a digital transmission unit is connected to the input of the digital-to-analog conversion stage.