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. 21, 1979
Filed:
Apr. 14, 1977
Applicant:
Inventors:
Takayuki Koizumi, Amagasaki, JP;
Teruo Usami, Amagasaki, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06M / ;
U.S. Cl.
CPC ...
235 / ; 235 / ; 235 / ; 235 / ;
Abstract
An electrical signal originating from an abnormal sound is passed through a bandpass filter and compared with a reference signal by a comparator. When the electrical signal is not less than the reference signal, the comparator produces a pulse. A counter counts the pulses from the comparator and causes a display device to display the presence of the abnormal sound when its count exceeds a predetermined value within a predetermined time interval.
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Koizumi, Takayuki. (1979). Signal decision system (U.S. Patent No. 4165458). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4165458
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile