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:
Oct. 28, 2014
Filed:
Sep. 11, 2012
Roger D. Kaul, Skyesville, MD (US);
Jeffrey S. Pulskamp, Leesburg, VA (US);
Ronald G. Polcawich, Derwood, MD (US);
Sarah Bedair, Bethesda, MD (US);
Roger D. Kaul, Skyesville, MD (US);
Jeffrey S. Pulskamp, Leesburg, VA (US);
Ronald G. Polcawich, Derwood, MD (US);
Sarah Bedair, Bethesda, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A binary bi-phase shift modulator having an input piezoelectric transducer and an output piezoelectric transducer connected in series between a radio frequency input and a radio frequency output. A fixed DC pole voltage having a first polarity is connected to one of the transducers. A DC switched pole voltage is connected to the other transducer which switches between the pole voltage of the first polarity and a pole voltage of the opposite polarity in accordance with a binary data signal. The polarity of the radio frequency input relative to the radio frequency output varies as a function of the polarity of the DC switched pole voltage.