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. 23, 1986
Filed:
Aug. 07, 1984
Kouichi Yamanoue, Okazaki, JP;
Junji Kitagawa, Okazaki, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A portable transmitter for transmitting a magnetic signal is disclosed. The transmitter is provided with a transmitting coil for generating a magnetic signal upon receiving an electric current from a dry cell through an intermittently operating electric current supplying transistor. The transmitter further comprises a capacitor, a charging line provided with a diode, and a switching transistor. The switching transistor makes the induced current which is generated in the transmitting coil, flow into the capacitor by way of the charging line when the electric current supply to the transmitting coil is stopped, and supplies the electric current stored by the capacitor to the transmitting coil when the electric current supply to the transmitting coil is started.