Abstract: Communications data interface sampling systems configured effectively with fully-symmetric dual-loop traveling wave oscillators providing high frequency evenly spaced multiple phases to represent analog-in-nature continuous signals as digital stream of samples with best approximation to the original signal.

Abstract: Communications data interface sampling systems configured effectively with fully-symmetric dual-loop traveling wave oscillators providing high frequency evenly spaced multiple phases to represent analog-in-nature continuous signals as digital stream of samples with best approximation to the original signal.

Abstract: A receiver 100 is provided. The receiver 100 comprises an in-phase analog-to-digital converter 112 operable to detect a saturation condition of the in-phase analog-to-digital converter 112 and to adjust the amplitude of a in-phase signal processed by the in-phase analog-to-digital converter 112 to remove the in-phase analog-to-digital converter 112 from the saturation condition and a in-phase digital filter 114 operable to adjust a gain applied to a digital input to the in-phase digital filter 114 from the in-phase analog-to-digital converter 112, the adjustment of the gain substantially inversely proportional to the adjustment of the amplitude of the in-phase signal processed by the in-phase analog-to-digital converter 112. In an embodiment, the receiver 100 also comprises a quadrature path that is substantially similar to the in-phase path, and the in-phase path and the quadrature path comprise a direct conversion receiver.

Abstract: A receiver 100 is provided. The receiver 100 comprises an in-phase analog-to-digital converter 112 operable to detect a saturation condition of the in-phase analog-to-digital converter 112 and to adjust the amplitude of a in-phase signal processed by the in-phase analog-to-digital converter 112 to remove the in-phase analog-to-digital converter 112 from the saturation condition and a in-phase digital filter 114 operable to adjust a gain applied to a digital input to the in-phase digital filter 114 from the in-phase analog-to-digital converter 112, the adjustment of the gain substantially inversely proportional to the adjustment of the amplitude of the in-phase signal processed by the in-phase analog-to-digital converter 112. In an embodiment, the receiver 100 also comprises a quadrature path that is substantially similar to the in-phase path, and the in-phase path and the quadrature path comprise a direct conversion receiver.

Abstract: A continuous time sigma delta modulator having minimal excess loop delay. The continuous-time sigma delta modulator in accordance with the present invention includes at least one integrator stage coupled to receive an input signal and a resultant integrator output signal from a previous stage for providing a resultant integrator output. At least one output stage connects to the at least one integrator stage to receive the resultant integrator output signal from the previous integrator stage for providing a resultant integrator output. A sample and hold circuit connects to receive the second integrator input signal. A multiplier connects to the sample and hold circuit to provide a resultant sampled signal. An analog-to-digital converter quantizer couples to receive the resultant sampled signal and to produce a quantized output signal.