Title :
On instantaneous vs. syllabic companding in log domain filters
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Lehigh Univ., Bethlehem, PA, USA
Abstract :
Companding is discussed as it concerns log domain filters. Here, companding is assumed to be implemented via modulation of additive biasing currents. From this perspective, only class AB log domain filters are considered “instantaneously” companding filters. Furthermore, class A and class AB filters are seen to be limiting cases of syllabically companding filters
Keywords :
compandors; filtering theory; nonlinear filters; additive biasing currents; class-A filters; class-AB filters; instantaneous companding; log domain filters; modulation; syllabic companding; Drives; Electronic mail; Equations; Mathematics; Nonlinear filters; State-space methods; Transfer functions;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780854
