Patent ID: 11959991
Assignee: LAKE SHORE CRYOTRONICS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 20:
21. A method of sourcing a signal, comprising:
providing an input signal to a data processor;
processing the input signal via the data processor;
sending the processed input signal via the data processor to a first and second path, the first and second paths comprising two or more digital-to-analog converters (DAC) to generate two or more frequency components;
generating, via the first path, a first path output of substantially low frequency signals;
generating, via the second path, a second path output of substantially high frequency signals;
combining the first and second path outputs into a source signal via a combining circuit;
sensing the source signal via a feedback portion;
providing, via the feedback portion, the sensed source signal to a servo loop; and
using the sensed source signal to maintain, via the servo loop, substantial agreement between the source signal and the input signal by at least one of:
removing DC errors;
removing low frequency errors; and
maintaining an integrity of the high frequency signals.