The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2003
Filed:
Mar. 27, 2002
Michael Schellmann, Meschede, DE;
Hella KG Hueck & Co., Lippstadt, DE;
Abstract
A method of distance measurement for vehicles by transit time measurement of laser pulses employs a distance sensor including a transmitter ( ) having a pulse generator ( A) for the generation of a laser pulse (L), and a receiver ( ) having a transit time measurement circuit ( A) for the detection of a reflected laser pulse (RL) reflected by a target. A cover wall ( ), which is partially transparent to laser radiation, defines an installation space in which these elements are arranged, with a transit time of a reflected portion (RT) of the laser pulse (L), reflected by the cover wall ( ) to the receiver ( ), being measured as a reference time signal for the distance measurement.