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. 07, 1990
Filed:
Mar. 01, 1989
Applicant:
Inventor:
Riichiro Yamashita, Tokasago, JP;
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G07D / ;
U.S. Cl.
CPC ...
194318 ; 324 / ;
Abstract
In a coin discriminator which compares a reference value to impedance magnitude variations induced by a coin, a phase detector detects the phases of the impedance variations and compares them with a standard to discriminate between the coins.
Yamashita, Riichiro. (1990). Coin discriminator with phase detection (U.S. Patent No. 4946019). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4946019
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile