Back-up protection sensor for a vehicle

A protection sensor for a lawn vehicle includes a substantially unidirectional antenna operatively coupled to a Doppler detection circuit. The Doppler detection circuit generates a radio frequency signal which is radiated by the antenna. When the radiated signal strikes an object, such as a person,...

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Bibliographische Detailangaben
Hauptverfasser:	ZUERCHER, JOSEPH CHARLES, MCCLANAHAN, DAVID LEE, PAHL, BIRGER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AGRICULTURE ALARM SYSTEMS ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANIMAL HUSBANDRY ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRICITY FISHING FORESTRY HARVESTING HUMAN NECESSITIES HUNTING LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MOWING ORDER TELEGRAPHS PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING TRANSPORTING TRAPPING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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