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. 10, 1981
Filed:
Mar. 05, 1979
Judson A Hofmann, Schaumburg, IL (US);
Zenith Radio Corporation, Glenview, IL (US);
Abstract
A detector is described for fully rectifying a low level A.C. input signal without developing switching transients or substantial levels of undesirable signal components. The output of the detector is substantially equal to the square root of the sum of the square of the input signal and the square of a bias component. To remove the bias component, a linearity enhancer is described which receives the output of the detector and develops a further output substantially equal to the square root of the square of the A.C. input signal. The linearity enhancer may also be employed without the detector to remove undesired component from a signal which can be represented as the square root of a polynomial.