US PATENT SUBCLASS 399 / 78
.~.~ Reference signal (e.g., pulse train)

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

75  DF  MACHINE OPERATION {6}
76  DF  .~ Sequential control {2}
78.~.~ Reference signal (e.g., pulse train)

DEFINITION

Classification: 399/78

Reference signal (e.g., pulse train):

(under subclass 76) Subject matter wherein the timing and sequence are provided by a generated series of clock pulses or a plurality of timed control signals.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G21/14, for electronic sequencing control.

epcG03G21/14B, for sequencing control wherein control pulses are generated by the mechanical movement of parts of the machine.