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. 24, 2021
Filed:
Mar. 11, 2020
Fanuc Corporation, Yamanashi, JP;
Minoru Enomoto, Yamanashi, JP;
Tetsuro Matsudaira, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A digital signal output device includes: an operation switch including contacts, a first terminal to which a first voltage is applied and a second terminal from which the first voltage is outputted when the contacts are closed; a voltage switching unit configured to select a second voltage from among a plurality of constant voltages; a voltage determination unit configured to determine on a designated cycle whether or not a voltage outputted from the voltage switching unit has changed from the second voltage; and a digital signal generation unit configured to, when the voltage determination unit determines that the voltage has not changed from the second voltage, generate on every cycle a digital signal indicating a first state when the first voltage is outputted from the second terminal and a digital signal indicating the second state when the first voltage is not outputted therefrom.