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:
Aug. 24, 1976
Filed:
Jun. 21, 1974
Applicant:
Inventors:
Shoichi Nakamura, Tokyo, JA;
Noriaki Naito, Tokyo, JA;
Assignee:
Sony Corporation, Tokyo, JA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 67 ; 360 61 ;
Abstract
A tape recorder comprises a noise reducing circuit provided at its output side with a first switch for changing over the circuit from its operative condition to its inoperative condition and vice versa and a second switch operatively connected to the first switch and for changing over the signal level. The use of the noise reducing circuit causes a decrease of the standard point of the recording level and an increase of the standard point of the reproduction level so as to increase the dynamic range of the tape recorder.