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. 20, 1977
Filed:
Jul. 13, 1976
Applicant:
Inventors:
Yoshihiko Ota, Yokohama, JA;
Akira Hirota, Chigasaki, JA;
Assignee:
Victor Company of Japan, Ltd., Yokohama, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358127 ; 360 33 ; 358281 ; 358296 ; 307237 ;
Abstract
An amplitude limiting circuit comprises a high-pass filter for passing the high frequency components of a frequency modulated video signal. The centerline of a signal portion has an amplitude width which is non-linear. A first amplitude limiter both limits and amplifies the output signal from the high-pass filter. A low-pass filter passes the low frequency component of the frequency modulated video signal. An adder adds the resulting output signals of the first amplitude limiter and the low-pass filter. A second amplitude limiter limits the resulting output of the adder.