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. 20, 1985
Filed:
Mar. 23, 1983
Kenji Fujibayashi, Tokyo, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A tape recorder wherein a control transistor is connected between a power source and a load circuit involving, for example, a motor circuit, mechanism control circuit and amplifier; and automatic shut-off circuit is connected in parallel to the load circuit. The automatic shut-off circuit is arranged to render the control transistor conductive at the time of power supply; and nonconductive when a terminal end of the tape is detected. A single-pole double-throw switch is provided which is only required to have a small current capacity, and has a movable contact connected to a power source, a first stationary contact connected to the voltage-detecting terminal of the automatic shut-off circuit and a second stationary contact connected to the base of the control transistor.