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:
Jun. 15, 2004
Filed:
Jan. 25, 2002
Naoki Imahori, Ohtsu, JP;
Yasuhiro Takada, Ohtsu, JP;
Optex Co., Ltd., Shiga-ken, JP;
Abstract
In an auxiliary safety sensor which has a first sensor set composed of a first transmitter and a first receiver located opposite to each other and a second sensor set composed of a second transmitter and a second receiver located opposite to each other, a test operation is performed by emitting a light beam only from the first transmitter . The state of misconnection is confirmed when a connection point for the first receiver does not receive predetermined light acceptance data for the amount of received light. To solve the misconnection, the light acceptance data based on the signals from the receivers are exchanged between each other, before they are supplied to the data acquisition means