Peripheral monitor for monitoring periphery of vehicle

Details Peripheral monitor for monitoring periphery of vehicle Peripheral monitor for monitoring periphery of vehicle

2006-04-04

2006-04-04

Lee, Benjamin C. (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

C340S511000, C342S070000, C342S081000, C342S085000, C342S094000, C342S118000, C702S094000, C702S106000

Reexamination Certificate

active

07023331

ABSTRACT:
The invention solves a problem of fluctuation in performance in the conventional peripheral monitor for monitoring periphery of a vehicle that measures a distance to other vehicle or any other object by transmitting radio waves and informs a driver of the distance due to variation in environmental conditions such as water drop sticking onto the cover. A peripheral monitor1including a transmission antenna2for radiating transmission waves through the cover, a receiving antenna3for receiving reflected waves through the cover, and a data processor for measuring a distance to any object are disposed together in a cover7. A transmission frequency at which reflected wave quantity is minimized is detected by detecting a first reflected signal level from the cover7,and this frequency is a command to a variable frequency oscillator to conduct a transmission at this frequency at all times.

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patent: 2002-71788 (2002-03-01), None

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