Frequency synthesizer using universal frequency translation technology
First Claim
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1. A method for frequency synthesizing, comprising the steps of:
- gating a first signal at a rate that is a function of the frequency of a second signal, thereby creating a first output signal;
filtering said first output signal, thereby isolating a first filtered output signal;
gating said first filtered output signal at a rate that is a function of a third signal, thereby creating a second output signal; and
filtering said second output signal, thereby isolating a desired output signal.
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Abstract
Frequency translation and applications of same are described herein, including frequency synthesizers that employ universal frequency translation technology. The universal frequency translation technology includes a device for switching, a device for storing, and an energy transfer signal for controlling the switching device. The energy transfer signal may include pulses having apertures sufficiently wide to effect substantial energy transfer.
556 Citations
32 Claims
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1. A method for frequency synthesizing, comprising the steps of:
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gating a first signal at a rate that is a function of the frequency of a second signal, thereby creating a first output signal;
filtering said first output signal, thereby isolating a first filtered output signal;
gating said first filtered output signal at a rate that is a function of a third signal, thereby creating a second output signal; and
filtering said second output signal, thereby isolating a desired output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
a switch; and
a capacitor, wherein said switch is controlled by a control signal, wherein an output of said switch is electrically coupled to said capacitor.
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11. The method of claim 1, wherein at least one of said gating a first signal step and said gating said first filtered output signal step is performed using a generalized frequency translation device having:
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a switch; and
a capacitor, wherein said switch is controlled by a control signal, wherein an output of said capacitor is electrically coupled to said switch.
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12. The method of claim 1, wherein said step of filtering said second output signal is performed using a selectable filter.
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13. The method of claim 1, wherein said gating said first filtered output signal step comprises:
sub-harmonically gating said first filtered output signal.
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14. The method of claim 1, wherein said gating said first filtered output signal step comprises:
gating said first filtered output signal according to a control signal formed to enhance energy transfer from said first filtered output signal.
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15. The method of claim 1, wherein said gating said first filtered output signal step comprises:
sub-harmonically gating said first filtered output signal according to a control signal formed to enhance energy transfer from said first filtered output signal.
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16. A system for frequency synthesizing, comprising:
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a first generalized frequency translation device accepting a first control signal, said first generalized frequency translation device gating an input signal at a rate that is a function of said first control signal, thereby creating a first output signal;
a first filter accepting said first output signal and outputting a first filtered output signal;
a second generalized frequency translation device accepting a second control signal, said second generalized frequency translation device gating said first filtered output signal at a rate that is a function of said second control signal, thereby creating a second output signal; and
a second filter accepting said second output signal and outputting a desired output signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
a switch; and
a capacitor, wherein said switch is controlled by a control signal, wherein an output of said switch is electrically coupled to said capacitor.
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20. The system of claim 19, wherein said switch is a semiconductor device.
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21. The system of claim 19, further comprising a control signal shaping module that processes the control signal prior to being received by the switch.
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22. The system of claim 21, wherein said control signal shaping module comprises means for defining the width of pulses of the control signal before the control signal reaches the switch.
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23. The system of claim 16, wherein at least one of said first generalized frequency translation device and said second generalized frequency translation device comprises:
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a switch; and
a capacitor, wherein said switch is controlled by a control signal, wherein an output of said capacitor is electrically coupled to said switch.
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24. The system of claim 16, wherein said second filter comprises a selectable filter.
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25. The system of claim 16, wherein said second generalized frequency translation device comprises:
means for sub-harmonically gating said first filtered output signal.
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26. The system of claim 16, wherein said second generalized frequency translation device comprises:
means for gating said first filtered output signal according to a control signal formed to enhance energy transfer from said first filtered output signal.
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27. The system of claim 16, wherein said second generalized frequency translation device comprises:
means for sub-harmonically gating said first filtered output signal according to a control signal formed to enhance energy transfer from said first filtered output signal.
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28. A method for frequency synthesizing, comprising:
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gating a first signal at a rate that is a function of the frequency of a second signal, thereby creating a first output signal;
filtering said first output signal, thereby isolating a first filtered output signal;
gating said first filtered output signal at a rate that is a function of a third signal, thereby creating a second output signal; and
filtering said second output signal, thereby isolating a desired output signal, wherein at least one of said gating a first signal step and said gating said first filtered output signal step is performed using a generalized frequency translation device having;
an impedance module; and
a switch, wherein an output of said impedance module is gated by said switch at a rate that is a function of a control signal, to thereby generate an output.
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29. A system for frequency synthesizing, comprising:
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a first generalized frequency translation device accepting a first control signal, said first generalized frequency translation device gating an input signal at a rate that is a function of said first control signal, thereby creating a first output signal;
a first filter accepting said first filtered output signal and outputting a first filtered output signal;
a second generalized frequency translation device accepting a second control signal, said second generalized frequency translation device gating said first filtered output signal at a rate that is a function of said second control signal, thereby creating a second output signal; and
a second filter accepting said second output signal and outputting a desired output signal, wherein at least one of said first generalized frequency translation device and said second generalized frequency translation device comprises;
an impedance module; and
a switch, wherein an output of said impedance module is gated by said switch at a rate that is a function of a control signal, to thereby generate an output. - View Dependent Claims (30, 31, 32)
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Specification