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. 30, 2009
Filed:
Jan. 11, 2006
Dominique Morche, Meylan, FR;
Dominique Morche, Meylan, FR;
Fahrenheit Thermoscope LLC, Las Vegas, NV (US);
Abstract
A bandpass filtering method in which two frequency transpositions are performed in parallel on an input signal (SE) for filtering using respective first and second upstream mixing signals (SM, SM). A common oscillator (LO) is used which is coupled with a first phase shifter (MTM) to produce upstream mixing signals and which is coupled with a second phase shifter (MTV) to produce downstream mixing signals. Phase shifters are used in opposite manner on first and second signals so that each of said first and second signals (VT, VT) receives the phase-advanced output signal from one of the two phase shifters and the phase-delayed output signal from the other of the two phase shifters.