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:
Sep. 16, 1980
Filed:
Dec. 19, 1978
Bodo Paulke, Neunkirchen am Brand, DE;
Alfred Walz, Burgthann, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An amplifier is disclosed for electrical signals which consists of a plurality of series-connected amplification stages each of which has at least one voltage-controlled amplifier element whose control characteristic can be adjusted by means of a control signal. An amplification is desirable for all individual stages which is equally great over an arbitrarily preselectable dynamic range. According to the invention, the amplifier has at least one control signal forming element for each of the amplifier elements of each amplification stage which exhibit different control characteristics compared to one another. This control signal forming element forms a secondary control voltage U.sub.ST2 from a primary control voltage U.sub.ST1 according to the equation U.sub.ST2 =m.multidot.U.sub.ST1 +n; m and n representing forming magnitudes which can be individually differently adjusted for each amplifier element at the control signal forming element so that differences in the control characteristic courses are compensated for by adjusting to a commonly prescribable characteristic. The amplifier is useful as a depth compensation amplifier in the ultrasonic impulse echo image technique.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile