ELECTRONIC SIGNAL FILTERS SOLD AS

Brand	Owner (click to sort)	Address	Description
IMPEDANCE TOLERANT	New Frontier Electronics, Inc	2744 North Sugan Road New Hope PA 18938	ELECTRONIC SIGNAL FILTERS SOLD AS INTEGRAL COMPONENT OF SURGE SUPPRESSORS;
IMPEDANCE TOLERANT	ELECTRONIC SYSTEMS PROTECTION, INC.	8001 Knightdale Blvd., Suite 121 Knightdale NC 27545	electronic signal filters sold as integral component of surge suppressors;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A system and method for efficiently upsampling and filtering a signal is provided. The system includes a controller 216 and an upsampler 202 capable of upsampling a digitized signal. The upsampler 202 converts a digitized signal having a first sampled frequency into a digitized signal having a second sampled frequency by inserting, for example, at least one zero between the samples of the digitized signal. A plurality of filters 205-208 is coupled to the upsampler. These filters, which may be band-pass filters, would be suitable for front end encoding in audio-based applications. The controller 216 adjusts at least one output of the plurality of the filters to zero, either by deactivation or forcing the filter to zero, based upon a predetermined characteristic of the digitized signal. One example of a predetermined characteristic is a maximum frequency of interest.