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:
Apr. 17, 2007
Filed:
May. 31, 2005
Applicants:
Stefan Herzinger, München, DE;
Günter Märzinger, Ulrichsberg, AT;
Inventors:
Stefan Herzinger, München, DE;
Günter Märzinger, Ulrichsberg, AT;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/085 (2006.01); H03L 7/093 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase locked loop PLL having a forward path and a feedback path is disclosed. A phase detector drives an oscillator in the forward path of the phase locked loop. The feedback path includes a frequency divider that connects the oscillator output to the phase detector. The phase locked loop further includes an integrator-free loop filter configured to control the oscillator. The integrator-free loop filter enables a reduction in the required PLL bandwidth without reducing the signal quality when the PLL is used as a modulator.