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. 21, 2003
Filed:
Apr. 01, 1999
Yoshiaki Sakagami, Shiga, JP;
Ishida Co., Ltd., Kyoto, JP;
Abstract
A foreign-matter detector for detecting foreign matter contained in an article P transported between a transmitter ( ) and a receiver ( ). The detector ( ) includes a signal extractor ( ) for extracting a signal (e) having a predetermined phase difference relative to a transmitted signal (a) from the transmitter ( ), based on a phase of the transmitted signal (a) from the transmitter ( ) and the received signal (b) from the receiver ( ), a specific value setting unit ( ) for setting, through an external input operation, a specific value for the level of the extracted signal (e) which is outputted from the signal extractor ( ) and which is attributable to the article (P) free from foreign matter to be detected, and a level adjusting circuit ( ) for adjusting the signal extractor ( ) or the receiver ( ) to cause the level of the extracted signal (e) attributable to the article itself to assume the specific value inputted. A foreign-matter detecting system is also provided which makes use of the foreign-matter detector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile