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:
Oct. 23, 2001
Filed:
Sep. 29, 2000
Applicant:
Inventor:
Ernst Luber, Neukirchen, DE;
Assignee:
Siemens AG, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/06 ; H04B 1/02 ;
U.S. Cl.
CPC ...
H04B 1/06 ; H04B 1/02 ;
Abstract
In the method according to the invention, several adjacent synchronized ultrasonic sensors automatically generate a clock signal with measurement clocks (M,, M,, M,). The transmission pulses (S,, S,, S,) of three ultrasonic sensors are generated with changing transmission pulse offset (d,, d,, d,) with respect to the respective measurement clocks (M,, M,, M,). Thereby, extrinsic echo signals of adjacent ultrasonic sensors can be masked out since only these echo signals change their position relative to the transmission pulses (S,, S,, S,). In contrast, the actual sought echo signal does not change its respective position relative to the transmission pulse (S,, S,, S,).