US PATENT SUBCLASS 342 / 138
.~.~ With type "A" or "J" range scope

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}
138.~.~ With type "A" or "J" range scope

DEFINITION

Classification: 342/138

With type "A" or "J" range scope:

(under subclass 134) Subject matter including cathode ray tube display of the returned radar signal as ordinates vs. time as abscissas (Type "A") or with the time base as a circle and the returned signal appearing as a radial deflection from it (Type "J").

SEE OR SEARCH THIS CLASS, SUBCLASS:

55, for radar systems combined with television.

142+, for radar distance and direction determination with CRT display.

176+, for radar display circuitry, per se.