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:
Mar. 20, 1990
Filed:
Oct. 19, 1988
Applicant:
Inventor:
Hans-Dieter Riedel, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G / ;
U.S. Cl.
CPC ...
340943 ; 340901 ; 340904 ; 367909 ;
Abstract
A monitoring apparatus for a safety device for driving a vehicle in reverse comprising at least two transmitter/receiver pairs which are mounted at the back of the vehicle and which operate by reflecting sound. Each transmitter/receiver is associated with an electroacoustic transducer. An acoustic shunt is positioned between neighboring transducers. The transmitter/receiver pairs alternate cyclically to acquire an object. The signal received from a neighboring transmitter is evaluated as a function control signal.