Apparatus for shifting the frequency of complex signals

  • US 4,868,428 A
  • Filed: 03/23/1988
  • Issued: 09/19/1989
  • Est. Priority Date: 02/20/1987
  • Status: Expired due to Term
First Claim
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1. Apparatus for generating a phase shifted version of an input signal including in combination an offset signal generator means to provide a plurality of relatively phase shifted offset signals and a combination means responsive to said input signal and said plurality of offset signals to generate an output signal comprised of a combination of a plurality of portions of the input signal, each portion of which is responsive to one of said offset signals and said input signal such that each said portion of input signal is equivalent to a phase shifted portion of said input signal which portion is responsive to said offset signal, which output signal is the phase shifted version of said input signal.

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