US PATENT SUBCLASS 368 / 118
.~.~.~ Including time base oscillator

Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

89  DF  TIME INTERVAL {6}
107  DF  .~ Electrical or electromechanical {3}
113  DF  .~.~ Stop time type {5}
118.~.~.~ Including time base oscillator {1}
119  DF  .~.~.~.~> Plural

DEFINITION

Classification: 368/118

Including time base oscillator:

(under subclass 113) Subject matter including means generating a periodic or periodically varying electric signal whose period represents a unit interval of time.

(1) Note. This subclass includes, for example, systems in which the oscillation of fixed frequency oscillators are counted during the interval being measured.

SEE OR SEARCH THIS CLASS, SUBCLASS:

139+, and 155+, for timepiece time bases, per se.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

79, for apparatus which compare the frequency or period of one signal with that of another signal. 331, Oscillators, for oscillators in general; and especially

111+, 129+, and 143+ for relaxation oscillators.