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. 16, 2001
Filed:
Feb. 11, 1998
Klaus Huber, Darmstadt, DE;
Deutsche Telekom AG, Bonn, DE;
Abstract
A method and circuit arrangement for frequency multiplication. A plurality of circuit modules for realizing Chebyshev polynomials of the nth order T,(x)) are provided. The Chebyshev polynomials have arithmetic properties and are defined by T,(cos(&ohgr;t))=cos(n&ohgr;t). The circuit modules are interconnected to form a modular circuit array or a modular circuit structure using one or more of the relations T,(x)=T,(T,(x)) and T,(x)=T,(x)T,(x)−T,(x). A cosinusoidal oscillation of a frequency is input into the Chebyshev circuit module (T,(x)) to generate a cosinusoidal oscillation having n-fold frequency. Frequency multiplier circuits may be produced very simply and in modular form, making applications in telecommunications, in particular, very cost-effective.