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:
Oct. 19, 2004
Filed:
May. 25, 2001
Michel Weiss, Gries, FR;
Jean-Max Tyburn, Wissembourg, FR;
Christian Brevard, Wissembourg, FR;
Laurent Martinache, Marienthal, FR;
Bruker Biospin SA, Wissembourg, FR;
Abstract
A device for generating a radio frequency electrical signals, delivering at least two separate signals having different frequencies, in the form of signals delivered by different primary sources and amplified with a predetermined gain. The device comprises a combining circuit ( ), combining the signals delivered by the primary sources ( ), a single channel power amplifier ( ) and a multi-channel selection and routing unit ( ) with a parallel structure. Each channel delivers at the output an amplified signal (S) at a frequency (F) characteristic of one of the primary sources ( ) and comprises a filter circuit ( ) adjusted to be passing for one of the different characteristic frequencies (F) of the different primary sources ( ), an impedance adaptation circuit ( ) and a rejection circuit ( ) for frequencies other than the passing frequency of the filter circuit ( ) of the channel in question.