Fail safe digital code rate generator

Failsafe module

Fast charge transfer analog-to-digital converter

Fast high resolution predictive analog-to-digital converter with

Fast indexing encoder apparatus

Fast indexing encoder apparatus

Fast response digital-to-analog converter

Fast transient digitizer

Fault detection algorithm for successive-approximation A/D conve

Feedback device

Feedback-compensated ramp-type analog to digital converter

FET logic gate circuits

Fiber optic message character display device and method of makin

Field programmable voice message device and programming device

Filler-in-plastic light-scattering cover

Filter circuit for digital-to-analog converter

Fire extinguisher accessory device providing voice instructions

Fire sound simulator

Fire sound simulator and related transmissions

Fixed format message entry device with electronic storage and ed