US PATENT SUBCLASS 331 / 149
.~.~ With sync, trigger, or pulsing circuit (e.g., self-pulsing)


Current as of: June, 1999
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331 /   HD   OSCILLATORS

143  DF  RELAXATION OSCILLATORS {6}
146  DF  .~ Blocking oscillators {3}
149.~.~ With sync, trigger, or pulsing circuit (e.g., self-pulsing)


DEFINITION

Classification: 331/149

(under subclass 146) Subject matter wherein the blocking oscillator includes an additional network for coupling to the oscillator a periodic source of synchronizing or triggering potential to drive or lock the period of the freely-running oscillator to the period of the source or to some multiple or submultiple thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

18+, for oscillators of the automatic frequency stabilized type synchronized with respect to a standard or reference frequency source.

55, for plural oscillators which are synchronized relative to each other or to another source.

87, for magnetron type oscillators with means to pulse the oscillator.

145, for multivibrators with synchronizing triggering or pulsing circuit. 153, for relaxation oscillators in general with synchronizing triggering or pulsing circuit.

172, for oscillators in general with synchronizing, triggering or pulsing means.