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:
Sep. 17, 2001
Fumio Morikawa, Misato, JP;
Nobuyuki Ishitsuka, Satte, JP;
SMC Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of driving and controlling a solenoid-operated valve is provided. The solenoid-operated valve can be centrally controlled and managed and it is possible to easily respond to any system change. The solenoid-operated valve is provided with a solenoid-operated valve driving control circuit for receiving solenoid-operated valve opening/closing control data from a serial bus as serial data including two bits for each of two solenoid-operated valve coils of the solenoid-operated valve; converting the data into parallel data; driving the solenoid-operated valve coils based on one bit of the two bits for each solenoid-operated valve coil in parallel data; driving light emitting diodes based on the other bit; and inputting an output from a sensor for detecting each of open and closed states of the solenoid-operated valve and a signal indicating whether each of the solenoid-operated valve coils has a single-coil structure or a double-coil structure by a switch; and converting the input data for sending to the serial bus.