Communications: electrical – Land vehicle alarms or indicators – Of relative distance from an obstacle
Reexamination Certificate
2005-03-29
2005-03-29
Hofsass, Jeffery (Department: 2636)
Communications: electrical
Land vehicle alarms or indicators
Of relative distance from an obstacle
C340S436000, C340S903000, C342S070000
Reexamination Certificate
active
06873250
ABSTRACT:
A back-up aid indication system includes a sensor for providing detection coverage in a predetermined coverage zone behind a vehicle. The sensor includes a transmit antenna adapted for transmitting an RF signal having a quasi-collimated antenna pattern in a near field. The system further includes a waveform generator which selectively provides one of a frequency modulated continuous wave FMCW Chirp signal and a pulse waveform signal as the transmitted RF signal.
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Delcheccolo Michael J.
Russell Mark E.
Viana Luis M.
Woodington Walter G.
Blount Eric
Daly, Crowley & Mofford & Durkee, LLP
Hofsass Jeffery
Raytheon Company
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