Converting an electromagnetic signal via sub-sampling
First Claim
1. A circuit configured to down-convert an electromagnetic signal, comprising:
- a pulse generator configured to generate a first control signal and a second control signal; and
an energy transfer module configured to sub-sample the electromagnetic signal to transfer energy therefrom, wherein the energy transfer module comprises a first switch and a second switch controlled by the first control signal and the second control signal, respectively.
1 Assignment
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Accused Products
Abstract
Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
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Citations
17 Claims
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1. A circuit configured to down-convert an electromagnetic signal, comprising:
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a pulse generator configured to generate a first control signal and a second control signal; and an energy transfer module configured to sub-sample the electromagnetic signal to transfer energy therefrom, wherein the energy transfer module comprises a first switch and a second switch controlled by the first control signal and the second control signal, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for down-converting an electromagnetic signal, comprising:
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generating a first control signal and a second control signal; sub-sampling the electromagnetic signal to transfer energy to a transfer energy module, wherein the transfer energy module comprises a first switch and a second switch controlled by the first control signal and the second control signal, respectively. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification