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:
May. 13, 1997
Filed:
Feb. 27, 1995
Peter Knoll, Ettlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
To hide, and protect a transducer (2), such as an ultrasonic, infrared transducer or the like, located on an outer surface part (1) of a vehicle, for example within a recess in a bumper, from vandalism or other damage, the transducer is located on the outer surface part (1) to be flush with the outer surface thereof, and a cover (4) is located on said outer surface part. The outer surface part (1), as is customary has a predetermined surface shape or contour, and the outer surface cover (4) matches and engages that predetermined outer surface part of contour. Preferably, the transducer is an ultrasonic transducer terminating in a membrane (3) which is located flush with the outer surface of the outer surface part (1), and acoustically coupled, for example by an adhesive (5), with the outer cover (4) to reduce damping of signals from the transducer, and of echo signals from an object received by the transducer, and passing through the outer cover. The material of the cover is preferably so selected that it has sufficient hardness and stiffness for good matching with the transducer. The method and system is suitable for combination with a parking assistance system (10, 11). The cover location of the transducer (2) prevents visual identification of the transducer, so that there is no interference with the visual aspect of the vehicle, and damage to the transducer, inadvertently or by vandalism, is effectively eliminated.