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Apparatus and methods of accessing all channels of a superheterodyne receiver simultaneously

  • US 9,748,980 B2
  • Filed: 09/03/2015
  • Issued: 08/29/2017
  • Est. Priority Date: 07/03/2013
  • Status: Active Grant
First Claim
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1. An energy output apparatus adapted for bypassing channel selection for a superheterodyne communication system, comprising:

  • a first and second transmitter sections configured to selectively bypass channel selection for a superheterodyne receiver coupled to or mounted within a moving aircraft, wherein said first transmitter section is adapted to output a plurality of one or more first signals comprising frequencies that are continuous wave un-modulated signals, said second transmitter section is adapted to output a plurality of second signals with a frequency that is modulated with a tone, a recording, or live audio, wherein one of said first or second transmitter sections is adapted to produce an omnidirectional output signal and the other transmitter section is adapted to produce a directional output signal aimed at said moving aircraft that comprises said superheterodyne receiver, wherein said first and said second transmitter sections are adapted to selectively transmit said first and second signals each having a selected carrier frequency within or very near corner frequencies of a pass band filter of said superheterodyne receiver such that said pass band filter passes both said omnidirectional and said directional signal output, wherein said selected carrier frequency is within or very near corner frequencies of said pass band filter such that negligible or manageable attenuation occurs;

    wherein said plurality of continuous wave signal'"'"'s frequencies and the one modulated frequency combine in the superheterodyne receiver'"'"'s mixer at an intersection of said first and second signals at said vehicle'"'"'s location as sums and differences of all possible combinations resulting an intermediate frequency product which is passed through the pass band of said superheterodyne receiver;

    wherein said all frequencies are selected such that one combination of sums and differences is equal to the intermediate frequency of the superheterodyne receiver;

    wherein nonlinear components in said superheterodyne receivers perform frequency conversion on said all frequencies.

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