US PATENT SUBCLASS 342 / 137
.~.~ With variable pulse repetition frequency (PRF) or pulse width

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

118  DF  DETERMINING DISTANCE {11}
134  DF  .~ With pulse modulation {4}
137.~.~ With variable pulse repetition frequency (PRF) or pulse width

DEFINITION

Classification: 342/137

With variable pulse repetition frequency (PRF) or pulse width:

(under subclass 134) Subject matter including changing the rate of the pulse transmission or the width of the pulse transmissions from the radar source.