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:
May. 08, 2012
Filed:
Aug. 28, 2007
Roy Greeff, Boise, ID (US);
David K. Ovard, Meridian, ID (US);
Roy Greeff, Boise, ID (US);
David K. Ovard, Meridian, ID (US);
Round Rock Research, LLC, Mt. Kisco, NY (US);
Abstract
Aspects of a communication system include phase shifters, interrogators, methods of shifting a phase angle of a signal, and methods of operating an interrogator. One example provides a phase shifter that include a first power divider configured to receive a signal and provide plural quadrature components of the signal; plural mixers coupled with the first power divider and configured to scale the quadrature components using a phase shift angle; and a second power divider coupled with the mixers and configured to combine the scaled quadrature components to shift the phase angle of the input signal by the phase shift angle.