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. 24, 2000
Filed:
Aug. 04, 1998
K Juergen Schoepf, Chandler, AZ (US);
David Kevin Lovelace, Chandler, AZ (US);
Klaas Wortel, Phoenix, AZ (US);
Jeffrey C Durec, Chandler, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A circuit (30) and method for translating a spectrum of a modulated signal. The circuit (30) includes a mixer (33), a summing device (36), and a synthesizer (37). The circuit (30) receives and transmits modulated Radio Frequency (RF) signals. The synthesizer (37) generates a transmitter modulated RF signal (TX.sub.RF) using a modulating signal (TX.sub.MOD). The mixer (33) generates an intermediate frequency signal (IF) by mixing a receiver modulated RF signal (RX.sub.RF) with the transmitter modulated RF signal (TX.sub.RF). The summing device (36) removes modulation of the transmitter modulated RF signal (TX.sub.RF) by combining the intermediate frequency signal (IF) with the modulating signal (TX.sub.MOD).