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:
Mar. 15, 2005
Filed:
Jun. 17, 2003
Applicants:
Seyed-ali Hajimiri, Pasadena, CA (US);
Hui Wu, Pasadena, CA (US);
Inventors:
Seyed-Ali Hajimiri, Pasadena, CA (US);
Hui Wu, Pasadena, CA (US);
Assignee:
California Institute of Technology, Pasadena, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03B005/12 ; H03B019/06 ; H03B027/00 ;
U.S. Cl.
CPC ...
Abstract
A system for generating in-phase and quadrature phase signals is provided. The system includes a first and a second differential output, such as from a sinusoidal oscillator. A first injection-locked frequency divider, such as one that uses an LC oscillator in conjunction with cross-coupled transistors, receives the first differential output and generates a in-phase or in-phase output. A second injection-locked frequency divider receives the second differential output and generates a quadrature phase output.