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:
Feb. 17, 1981
Filed:
Jul. 12, 1977
Applicant:
Inventors:
Peter Bragas, Hildesheim, DE;
Bernd Eschke, Detfurth, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G / ; G08C / ;
U.S. Cl.
CPC ...
340 32 ; 340 23 ; 3401 / ; 375 62 ;
Abstract
A circuit is provided to detect the direction of movement of the vehicle with respect to a fixed road mounted loop, which can then extend over opposing lanes of a highway network, the direction detecting equipment being mounted either on the vehicle, or connected to the road mounted unit so that correct destination guidance information can be transmitted to vehicles passing a loop embedded in the roadway upon transmitting from the vehicle to the roadway a target or destination code.