5results about "Reversible analogue/digital convertors" patented technology

A hybrid wideband / narrowband direct digital transceiver. In an example, the transceiver includes a first-stage downconverter configured to convert a radio frequency (RF) input analog signal to a first intermediate frequency (IF1) narrowband (NB) input analog signal; a second-stage downconverter configured to convert the IF1 NB input analog signal or a millimeter wave (mmW) input analog signal to a second intermediate frequency (IF2) NB input analog signal; one or more analog to digital converters (ADCs) configured to convert one or more of the IF1 NB input analog signal, the IF2 NB input analog signal, and the RF input analog signal to digital input signals; and a processor configured to control the first-stage downconverter to set a center frequency and bandwidth of the IF1 NB input analog signal and control the second-stage downconverter to set a center frequency and bandwidth of the IF2 NB input analog signal.

The invention discloses an apparatus and method for non-linearity cancellation in an electronic system. In some embodiments, an electronic system includes two or more circuit channels that process a common input signal in parallel, each circuit channel including at least one instance of a non-linear behavior circuit. Thus, a non-linear circuit is replicated and included in each circuit channel at least once. Each circuit channel has an input scaling factor and an output scaling factor that can be changed from one circuit channel to another. The scaled output signals of the circuit channels are combined to generate a combined output signal. The input and output scaling factors are selected to eliminate or reduce nonlinearity.

Systems and methods for operating a signal converter. The methods comprise; establishing a first interface between the signal converter and an analog device of a first network, and a second interface between the signal converter and an edge node of a different second network; supplying power to a first circuit portion of the signal converter from the analog device, and power to a second circuit portion of the signal converter from the edge node; receiving, by the first circuit portion, a first analog signal from the analog device; converting, by the first circuit portion, the first analog signal to a first electrical signal; formatting, by the second circuit portion, the first electrical signal for communication over the second network; and communicating, from the second circuit portion, the formatted first electrical signal to the edge node.

Apparatus and methods for nonlinearity cancellation in electronic systems are disclosed. In certain embodiments, an electronic system includes two or more circuit channels that process a common input signal in parallel and that each include at least one instantiation of a circuit that behaves nonlinearly. Thus, the nonlinear circuit is replicated and included at least once in each circuit channel. Each of the circuit channels has an input scaling factor and an output scaling factor that can vary from one circuit channel to another. The output signals from the circuit channels after scaling are combined to generate a combined output signal. The input and output scaling factors are selected to cancel or reduce nonlinearities.

Apparatus and methods for nonlinearity cancellation in electronic systems are disclosed. In certain embodiments, an electronic system includes two or more circuit channels that process a common input signal in parallel and that each include at least one instantiation of a circuit that behaves nonlinearly. Thus, the nonlinear circuit is replicated and included at least once in each circuit channel. Each of the circuit channels has an input scaling factor and an output scaling factor that can vary from one circuit channel to another. The output signals from the circuit channels after scaling are combined to generate a combined output signal. The input and output scaling factors are selected to cancel or reduce nonlinearities.