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:
Jun. 25, 1991
Filed:
Feb. 20, 1990
Applicant:
Inventor:
Gerhard Roehrlein, Hoechstadt, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324248 ; 307309 ; 324225 ;
Abstract
Circuit arrangement for a gradiometer with super conducting quantum interferometer (SQUID) for measuring low-intensity biomagnetic fields. In the circuit arrangement a modulated output voltage that is proportional to a measured magnetic field is supplied to an analog-to-digital converter for digitization and quantization, a modulated output signal of the analog-to-digital converter serving as a digital measured signal.