PYRO FRAC

Brand	Owner	Address	Description
PYROFRAC	RESCO PRODUCTS, INC.	One Robinson Plaza, Suite 300 6600 Steubenville Pike Pittsburgh PA 15205	PYRO-FRAC;processed minerals for use in numerous industries as an ingredient in the manufacture of bricks, tiles, sanitaryware, electrical porcelain, art ceramics, stoneware, earthenware, plastic refractories, castable refractories, refractory mortars, insulating firebrick, modeling clay, foundry strainer cores, molten metal filters, parting compound, foundry mold and core washes, fired shapes, kiln and kiln car materials, ramming mixes, industrial fillers, gunning mixes, face brick coatings, investment casting stucco, ceramic casting slips, and special refractory shapes;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An Adaptive Sound Source Vector Generator (ASSVG) 103 sets preceding and succeeding pitch cycles centered on an integral-accuracy pitch cycle T0 selected in the previous subframe as a range for searching for a fractional-accuracy pitch frequency, and extracts an adaptive sound source vector P(T-frac) that has fractional-accuracy pitch cycle T-frac within this range from an Adaptive Code Book (ACB) 102. A Last Sub Frame Integral Pitch Cycle Storage (LSFIPCS) 108 stores integral component T0 of the optimal pitch cycle selected by a Distortion Comparator (DC) 107, and when a pitch cycle of the next subframe is searched for, outputs this optimal pitch cycle integral component T0 to the Adaptive Sound Source Vector Generator (ASSVG) 103. An Optimal Pitch Cycle Accuracy Judge Section (OPCAJS) 109 judges whether the optimal pitch cycle is of integral accuracy or fractional accuracy. A Comparison Judge Section (CJS) 110 restricts the number of times fractional-accuracy pitch information is selected in an optimal pitch cycle.