A METHOD AND SYSTEM FOR SECURELY COMMUNICATING INFORMATION USING MULTIPLE RF CARRIERS
摘要
Amplitude modulation of multiple carriers provides a pulse width modulated train resulting in a novel and effective communication mechanism to overcome difficulties in certain RF applications, particularly in the area of Radio Frequency Identification (RFID). A novel conceptual pulse is formed and developed using a set of RF frequencies, such as ultra wideband frequencies, amplitude modulated to form a pulse width modulated binary coded signal. The concept is to wirelessly convey information only to a receiver at a specified distance or range. The RF energy may continue on in space, but receivers of the same design would only receive information from a transmitter if the receivers are located at a specified distance. Equivalent receivers at all other distances would see noise.
申请公布号
WO2008097372(A2)
申请公布日期
2008.08.14
申请号
WO2007US79843
申请日期
2007.09.28
申请人
UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION;MICKLE, MARLIN H.;MAINA, JOSHUA Y.;LOVELL, MICHAEL R.;SCHAEFER, LAURA A.
发明人
MICKLE, MARLIN H.;MAINA, JOSHUA Y.;LOVELL, MICHAEL R.;SCHAEFER, LAURA A.