Vehicle parking apparatus

Details Vehicle parking apparatus Vehicle parking apparatus

2007-06-05

2008-05-20

Nguyen, Phung T (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

C340S932200, C359S436000

Reexamination Certificate

active

07375621

ABSTRACT:
A distance indicating apparatus and method determine the distance between a fixed object and a moving object (such as a motor vehicle, airplane or water vessel) by using two spaced-apart projectors to project a distance indicating scale (which can include non-linear markings) and an index along two different paths onto a projection target surface where they are visible to create a visual distance indication that varies as the fixed and moving objects vary in distance less than a certain distance.

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