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:
Nov. 07, 1995
Filed:
Sep. 09, 1993
Walter Zimmermann, Dorfen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An arrangement for frequency conversion of an input signal having a frequency f.sub.1 with an oscillator signal having a frequency f.sub.2 to form an intermediate frequency signal of frequency f.sub.3 has a high intermodulation steadiness given a simultaneously low power consumption. A switch element is switched high-impedance and low-impedance parallel to a signal-carrying path with a control source having the oscillator frequency f.sub.2. Circuits are inserted into the signal infeed and signal outfeed paths and have transmission properties for the frequency f.sub.1 and blockage properties for the frequency f.sub.3 in the infeed path, as well as transmission for the frequency f.sub.3 and blockage for the frequency f.sub.1 in the outfeed path.