327 / | HD | MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS |
100 | DF | SIGNAL CONVERTING, SHAPING, OR GENERATING {29} |
141 | DF | .~ Synchronizing {7} |
144 | DF | .~.~ Using multiple clocks {5} |
146 | DF | .~.~.~ With feedback {1} |
147 | DF | .~.~.~.~ Phase lock loop {3} |
150 | .~.~.~.~.~ With digital element |