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:
Feb. 10, 2004
Filed:
Jun. 29, 2001
Marcel F. C. Schemmann, Echt, DE;
Zhijian Sun, Jamesville, NY (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method and structure for generation of signal distortion. In a first embodiment, a first signal distortion generator (SDG) receives a pair of balanced input currents +X and −X, each having a same angular frequency &ohgr;. The first SDG generates a pair of output currents +X+&Dgr;X and −X+&Dgr;X , wherein &Dgr;X −&Dgr;X =G X +G X . G and G are each independent of X, and at least one of G and G is nonzero. In a second embodiment, a second SDG receives an unbalanced input current P having an angular frequency &ohgr;. The second SDG generates an output current U of a form P+(&agr;P+&bgr;P +&ggr;P )/2. &agr;, &bgr;, and &ggr; are each nonzero and each independent of P. The second SDG includes a distortion generating circuit path that has an input impedance ratio of at least 5 and an output impedance ratio of at least 5.