Method and apparatus capable of interference cancellation
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United States of America Patent
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Issued Date -
Jan 12, 2006
app pub date -
Jun 14, 2005
filing date -
Jul 8, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An embodiment of the present invention provides an apparatus capable of interference cancellation, comprising a first antenna capable of receiving an electrical signal, said electrical signal comprising a main signal component and an interfering signal component; a second antenna capable of receiving said electrical signal and passing it to a tunable delay line, said tunable delay line capable of varying the time delay of said electrical signal; and a combiner capable of receiving the electrical signal from said first antenna and the time delayed electrical signal from said tunable delay line and combining them so as to cancel said interfering signal component from said electrical signal. An embodiment of the present invention also provides an apparatus capable of interference cancellation, comprising an antenna capable of receiving an electrical signal, said electrical signal comprising a main signal component and an interfering signal component; and a feed back loop in which a portion of said electrical signal passes through a cancellation path that includes a tunable delay line capable of time delaying said electrical signal such that when a coupler recombines said electrical signals said interfering signal component from said electrical signal is substantially cancelled.
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