Patent ID: 6963732
Filing Date: 2005-11-08
Classification: H03H,H04B,H04L

Abstract:
1. An apparatus for downconverting a first periodic voltage waveform into a second periodic voltage waveform, comprising: an input for receiving the first voltage waveform; a sampler coupled to said input for obtaining from the first voltage waveform a plurality of temporally distinct samples respectively indicative of areas under corresponding fractional-cycles of the first voltage waveform; and a combiner coupled to said sampler for combining the samples to produce the second voltage waveform, including a drive amplifier for driving the second voltage waveform, and a switching apparatus connected between said sampler and said drive amplifier for connecting said sampler to said drive amplifier during temporally separated readout time intervals, said switching apparatus operable while said sampler is obtaining said samples for disconnecting said sampler from said drive amplifier to create between adjacent pairs of said readout time intervals respective idle time intervals that permit adjustment of said drive amplifier without losing information in the first voltage waveform.