Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 18, 2011
Patent Application Number
12462683
Date Filed
August 8, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A target unit mounted on vehicle hitch ball contains a known object target and an optical unit mounted on trailer hitch socket contains an optical sensor. A real image of known object target is projected onto image plane of optical sensor. Vehicle hitching distance and offset from optical axis, normal to image plane origin, is related to real image size and offset from image plane origin respectively. Distance and offset are displayed to driver in the form of remaining distance and relative steering commands.
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