Abstract: A calibration module includes an absolute value module that generates first and second magnitude signals based on a first signal and a second signal, respectively. A first module generates an amplitude correction signal for a quadrature-amplitude modulated (QAM) signal based on the first and second magnitude signals. A second module generates a phase correction signal for the QAM signal based on the first signal and the second signal.

Abstract: A receiver module includes an automatic gain control module having a gain that varies from a nominal value in response to the receiver module receiving an input signal. The automatic gain control module is configured to generate a first signal in response to the gain settling at a value different from the nominal value. A peak detector module is configured to generate a second signal in response to the gain deviating from the nominal value by a predetermined amount. The peak detector module generates the second signal prior to the automatic gain control module generating the first signal. A control module is configured to receive each of the first signal and the second signal and reset the receiver module to halt processing of the input signal in response to the control module not receiving the first signal within a predetermined amount of time subsequent to the control module receiving the second signal.

Abstract: A system for detecting interference includes an automatic gain control (AGC) module, a peak detection module, and a control module. The AGC module selectively generates a gain-locked signal when an input signal is received. The peak detector module communicates with the AGC module and selectively generates a peak-detect signal. The control module communicates with the AGC module and the peak detector module and generates a control signal when the control module does not receive the gain-locked signal within a predetermined time after receiving the peak-detect signal.

Abstract: USB self-idling techniques are described. In one or more embodiments, a Universal Serial Bus (USB) device comprises one or more modules to communicate via USB and self-idle by presenting an idle mode to a USB host and entering a suspend mode while the USB host is presented with the idle mode.

Abstract: A system for detecting interference includes an automatic gain control (AGC) module, a digital signal processing (DSP) module, and a control module. The AGC module selectively generates a gain-locked signal when an input signal is received. The DSP module communicates with the AGC module and selectively generates a sync-detect signal when the input signal is received. The control module communicates with the AGC module and the DSP module, and generates a control signal when the DSP module does not generate the sync-detect signal within a predetermined time after the AGC module generates the gain-locked signal.

Abstract: A calibration module includes a first input that receives a reference signal, a second input that receives a crosstalk signal, and first and second absolute value modules that generate first and second magnitude signals based on the reference signal and the crosstalk signal, respectively. A first module generates an amplitude correction signal for a quadrature-amplitude modulated (QAM) signal based on the first and second magnitude signals. A second module generates a phase correction signal for the QAM signal based on the reference signal and the crosstalk signal.