Optical encoder system, device and method of operating an optical encoding device

An optical encoder system is disclosed with a single pattern medium having a first coded pattern disposed on the first side, a second coded pattern disposed on the second side, a first optical encoder disposed toward the first side, and a second optical encoder disposed toward the second side. An op...

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Bibliographische Detailangaben
Hauptverfasser:	HOCK ANN TAN, THENG HOOI YEOH
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	An optical encoder system is disclosed with a single pattern medium having a first coded pattern disposed on the first side, a second coded pattern disposed on the second side, a first optical encoder disposed toward the first side, and a second optical encoder disposed toward the second side. An optical encoder device is disclosed with a first coded pattern disposed on the first side, and a second coded pattern disposed on the second side. There is disclosed a method for using an optical encoder device to obtain information related to a motor which includes the steps of illuminating a first coded pattern disposed on a first side of a pattern medium, illuminating a second coded pattern disposed on a second side of the pattern medium, detecting light reflected from the first side, detecting light reflected from the second side, and analyzing the reflected light.