US PATENT SUBCLASS 331 / 46
PLURAL OSCILLATORS

Current as of: June, 1999
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331 /   HD   OSCILLATORS

46PLURAL OSCILLATORS {6}
47  DF  .~> Oscillator used to vary amplitude or frequency of another oscillator
48  DF  .~> Adjustable frequency
49  DF  .~> Selectively connected to common output or oscillator substitution
50  DF  .~> Cascade or tandem connected {4}
55  DF  .~> Synchronized, triggered or pulsed
56  DF  .~> Parallel connected

DEFINITION

Classification: 331/46

(under the class definition) Subject matter comprising an electrical system including at least two significant oscillators.

(1) Note. If only one oscillator is significantly claimed and the other oscillator or oscillators are merely recited by name only without any oscillator circuit detail being claimed, classification is elsewhere in this class in accordance with the nature of system or of the significant oscillator claimed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+, for oscillator systems with automatic frequency stabilization which may involve plural oscillators. See especially subclasses: 2, wherein plural oscillators are stabilized, 18+, wherein a reference oscillator or source is utilized, 30+, for such systems combined with a stable heterodyne oscillator. 37+, for plural oscillators utilized to produce a beat frequency. 45, for polyphase output systems that may utilize plural oscillators. 71, for oscillator systems wherein raw A.C. is utilized as a source of power or bias.

87, for magnetically controlled space discharge device oscillator (e.g., magnetron) with particular pulsing means.

106, for oscillators with periodic amplitude or frequency varying means (e.g., tremolo, vibrato). 145, for multivibrator oscillators with synchronizing, triggering or pulsing means.

149, for blocking oscillators with synchronizing, triggering or pulsing means.

153, for relaxation oscillators in general with synchronizing, triggering and pulsing means.

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

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems, particularly

18+, for plural sources of electrical energy in general associated with plural output circuits and subclasses 43+ for plural sources of electrical energy associated with a common output or load.