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. 22, 1982
Filed:
Sep. 18, 1979
Applicant:
Inventors:
Kazumasa Ishikawa, Kawasaki, JP;
Shin-ichi Takahashi, Yokohama, JP;
Masahide Yoneyama, Kawasaki, JP;
Assignee:
Nippon Columbia Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03 / ;
U.S. Cl.
CPC ...
330109 ; 330 85 ; 330126 ; 330151 ; 330294 ; 330304 ; 333 / ;
Abstract
In a frequency characteristic adjusting circuit having an arrangement of at least one adder, a filter circuit and feedback and/or feed forward means the transfer factors of which and the peak or dip of the filter circuit are freely selectable. Adjustment of the center frequency and Q are independent.