SIGMA FRAC

Brand	Owner	Address	Description
SIGMAFRAC	Mission Well Services	Suite 310 1450 Lake Robbins Drive The Woodlands TX 77380	SIGMA FRAC;Synthetic proppant for use in fracture stimulation of oil and gas reservoirs; fracturing fluid additives for use in well stimulation processes in the oil and gas industry;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The analog-to-digital (ADC) delta sigma modulators in the signal processing systems described utilize comparator number reduction techniques to improve a delta sigma modulator quantizer. The delta sigma modulator generates one quantization output signal per delta sigma modulator output cycle. A quantizer of the delta sigma modulator includes one or more comparators, that each makes at least two comparisons per delta sigma modulator output cycle. The one or more comparators compare a quantizer input signal against one or more thresholds. A successive reference generator determines the one or more thresholds for the one or more comparators wherein each of the one or more thresholds during a later one of the at least two comparisons is in conformity with results of an earlier one of the at least two comparisons. Redundant and other iterative comparison techniques and threshold generation techniques are used to efficiently reduce the number of comparators in the quantizer while maintaining accuracy.