US PATENT SUBCLASS 331 / 153
.~ With sync, trigger or pulsing circuit


Current as of: June, 1999
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331 /   HD   OSCILLATORS

143  DF  RELAXATION OSCILLATORS {6}
153.~ With sync, trigger or pulsing circuit


DEFINITION

Classification: 331/153

(under subclass 143) Subject matter wherein the relaxation oscillator includes an additional network for coupling to the oscillator a source, usually periodic, of synchronizing triggering or pulsing 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 controlled type wherein the oscillator is synchronized with 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 a synchronizing, triggering or pulsing circuit. 149, for blocking oscillators with synchronizing, triggering or pulsing circuit.

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