US PATENT SUBCLASS 327 / 141
.~ Synchronizing

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
141.~ Synchronizing {7}
142  DF  .~.~> Reset (e.g., initializing, starting, stopping, etc.) {1}
144  DF  .~.~> Using multiple clocks {5}
154  DF  .~.~> With feedforward
155  DF  .~.~> With feedback {1}
160  DF  .~.~> With counter
161  DF  .~.~> With delay means
162  DF  .~.~> Having reference source {1}

DEFINITION

Classification: 327/141

Synchronizing:

(under subclass 100) Subject matter wherein a signal is produced which will (a) maintain a predetermined phase or frequency relationship between two sources of waves, one source being an excitation or standard source (sync source) and the other source being changed to achieve the predetermined relationship; (b) provide an initiate or stop operation to a device at a predetermined time; or (c) time (i.e., synchronize) the operation of some electrical circuit

or system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

185+, for circuits having one or more stable states.

231+, for a phase shift which is less than the period of an input signal.

261+, for a time delay in producing an output waveform.

392+, for a delay controlled switch.

SEE OR SEARCH CLASS 219, Electric Heating,

108+, for resistance welding circuits which may contain timing means.

315, Electric Lamp and Discharge Devices: Systems,

360, for timing circuits where the discharge device is the ultimate load.

318, Electricity: Motive Power Systems

62, 141+, 364+, 445, 700+, 725+, and 727+ for motor control circuits containing time delay.

324, Electricity: Measuring and Testing,

160+, for time or speed measuring or determining.

326, Electronic Digital Logic Circuitry,

93+, for logic stage or gate synchronizing or timing.

331, Oscillators,

20+, for synchronized automatic frequency stabilized TV type oscillators, subclass 55 for synchronized plural oscillators, subclass 87 for synchronized magnetron oscillators, subclass 145 for synchronized free running multivibrators, subclass 149 for synchronized free running blocking oscillators, and subclass 153 for synchronized free running relaxation oscillators in general. 348, Television,

500+, for television synchronizing.

358, Facsimile,

409+, for facsimile synchronization.

375, Pulse or Digital Communications,

106+, for data communication synchronization.