US Air Force Patent US6470214B1: Method and Device For Implementing The Radio Frequency Hearing Effect
US Patent 6,470,214 BI; Date of Patent: Oct. 22, 2002, James P. O’Loughlin, Diana L. Loree
1) Method and device for implementing the radio frequency hearing effect
2) Method and Device For Implementing the Radio Frequency Hearing Effect
3) Method and Device For Implementing the Radio Frequency Hearing Effect
Abstract:
A modulation process with a fully suppressed carrier and input preprocessor filtering to produce an encoded output; for amplitude modulation (AM) and audio speech preprocessor filtering, intelligible subjective sound is produced when the encoded signal is demodulated using the RF Hearing Effect. Suitable forms of carrier suppressed modulation include single sideband (SSB) and carrier suppressed amplitude modulation (CSAM), with both sidebands present.
