US PATENT SUBCLASS 320 / 141
.~.~ Pulse modulation

Current as of: June, 1999
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320 /   HD   ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING

137  DF  BATTERY OR CELL CHARGING {11}
139  DF  .~ Pulsed {3}
141.~.~ Pulse modulation {2}
142  DF  .~.~.~> Phase controlled {1}
145  DF  .~.~.~> Pulse-width modulation

DEFINITION

Classification: 320/141

Pulse modulation:

(under subclass 139) Subject matter including means for actively varying a characteristic (e.g., width, amplitude, duty cycle, etc.) of the pulses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

162+, for detecting the amplitude of current or voltage.