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:
Oct. 09, 1984
Filed:
Jun. 20, 1983
Applicant:
Inventors:
Teruo Iwasawa, Tokyo, JP;
Hitomi Tojiki, Tokyo, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323314 ; 323316 ; 323901 ;
Abstract
A power supply device for use in a superminiature tape recorder is disclosed. The device comprises a reference voltage generator circuit for generating an output therefrom in response to a reference voltage, a constant-current circuit for generating a constant current to obtain the reference voltage, a starting circuit for supplying a starting current to the constant current circuit and for branching a part of the starting current, and an electronic switch for causing flow of starting current therein so as to turn the constant-current circuit OFF.