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:
Jul. 26, 2011
Filed:
Feb. 25, 2008
Applicant:
Sergio R. Ramirez, Austin, TX (US);
Inventor:
Sergio R. Ramirez, Austin, TX (US);
Assignee:
Mentor Graphics Corporation, Wilsonville, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03C 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided are apparatuses and methods for digital FM modulation. In one example, a message signal is integrated by an integrator to transform the message signal into a complex signal. The complex signal may include at least two complex components that may interfere to produce an FM modulated carrier signal. Hence, in this example, the method and apparatus for digital FM modulation may produce an FM modulated carrier signal without phase shifting. In another example, a lookup table is not necessary for modulation of the carrier signal.