US PATENT SUBCLASS 342 / 131
.~.~.~ Combined with pulse modulation (e.g., frequency agile)

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}
128  DF  .~ With frequency modulation {3}
130  DF  .~.~ Plural modulation {1}
131.~.~.~ Combined with pulse modulation (e.g., frequency agile) {1}
132  DF  .~.~.~.~> With pulse modulation (e.g., "Chirp")

DEFINITION

Classification: 342/131

Combined with pulse modulation (e.g., frequency agile):

(under subclass 130) Subject matter including the use of pulse modified radar carrier signals in making the distance determination.

(1) Note. Frequency agile radar is a pulse radar in which the transmitter carrier frequency is changed between pulses

in a random or pseudo-random way be an amount comparable to the reciprocal of the pulse width, or multiple thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

134+, for distance determination using pulse modulation radar.

201, for radar frequency modulation combined with pulse modulation circuitry, per se.

202+, for radar pulse modulation circuitry, per se.