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. 02, 2010
Filed:
Dec. 18, 2007
Applicants:
Lawrence F. Cygan, Schaumburg, IL (US);
Curtis M. Williams, Schaumburg, IL (US);
Andrew M. Khan, Schaumburg, IL (US);
Inventors:
Lawrence F. Cygan, Schaumburg, IL (US);
Curtis M. Williams, Schaumburg, IL (US);
Andrew M. Khan, Schaumburg, IL (US);
Assignee:
Motorola Mobility, Inc., Libertyville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for direct conversion of digital data to high power RF signals, known as DDRF. The method and apparatus receive a digital signal, create a digital modulated signal therefrom, and amplify the modulated signal with an H-bridge Power Amplifier for transmission. DDRF uses a multi-level H-bridge amplification circuit to establish a more power efficient digital transmitter.