Abstract: A fully digital filter jitter reduction circuit for attenuating jitter transfer in a digital communication system or subsystem includes a digital filter which attenuates jitter transfer within a bandwidth of the filter. A single synthesized clock, from which all other required clocks are created by precessing or phase shifting with respect to the synthesized clock, is utilized to create a reduced jitter output clock. Under the control of the digital filter, the reduced jitter output clock operates an output data latch such that the output data latch performs the function of an elastic buffer. Several stages of the digital filter jitter reduction circuit can be implemented in cascade to further reduce jitter. Since jitter attenuation is a function of the input jitter amplitude, the digital filter is nonlinear in nature.

Abstract: Micromechanical microwave switches with both ohmic and capacitive coupling of rf lines and integration in multiple throw switches useful in microwave arrays.

Abstract: An optical-electrical transmitter/receiver (300) with an optical detector (310) for reception which may be made transparent for optical transmission. This permits transmission (320, 330) and reception (310) devices to be positioned in series on a single integrated circuit.