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:
Dec. 24, 1985
Filed:
Apr. 04, 1984
Applicant:
Inventor:
Michinori Naito, Tokyo, JP;
Assignee:
Trio Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ;
U.S. Cl.
CPC ...
455205 ; 455305 ; 455312 ; 381 13 ;
Abstract
In a distortion canceller to remove the distortion of a demodulated signal in an FM receiver, the n-th power of the demodulated FM signal is produced and then differentiated to derive an n-th order distortion signal. The derived n-th order distortion signal is adjusted in its amplitude level and then combined with the demodulated FM signal so that the n-th distortion component can be cancelled.