Patent ID: 9130639
Filing Date: 2015-09-08
Classification: H03D,H04B

Abstract:
1. A radio frequency (RF) resolver, comprising: an oscillator circuit configured to provide a first oscillated signal and a second oscillated signal that is different from the first oscillated signal; a mixer circuit coupled to the oscillator circuit, the mixer circuit including first and second frequency mixers for mixing an incoming RF transmission, each of the first and second mixers including a first input, a second input, and an output, the first inputs of the first and second mixers being adapted to receive the incoming RF transmission, the second input of the first mixer being adapted to receive the second oscillated signal and the second input of the second mixer being adapted to receive the first oscillated signal, the output of the first mixer being configured to provide a first output signal and the output of the second mixer being configured to provide a second output signal that is different from the first output signal; and a controller circuit coupled to the mixer circuit and configured to determine at least one of an upper sideband (USB) frequency or a lower sideband (LSB) frequency of the RF transmission based a characteristic of the first output signal and a characteristic of the second output signal.