Patent ID: 7110931
Filing Date: 2006-09-19
Classification: H03H,H04M

Abstract:
1. A method, using a computer, of generating the design of a DSL filter circuit having a plurality of inductors and capacitors, comprising: selecting a plurality of parameters relating to the performance of said circuit, said act of selecting comprising selecting said parameters such that (i) voice band signals are passed through said filter with no more than 3.25 dB attenuation; and (ii) the impedance of said filter comprises a return loss value of −3 dB or better; modeling two external devices electrically coupled to said circuit each as a complex impedance; selecting a first value for at least one of said plurality of inductors and capacitors; performing a first simulation based on said selected first value and said modeled complex impedances; and evaluating the sufficiency of said design for said selected parameters.