ENCODER, SERVO SYSTEM, AND POSITION DATA GENERATION METHOD OF ENCODER
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 10, 2015
app pub date -
Jun 2, 2015
filing date -
Jun 9, 2014
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An encoder includes a disc coupled to a rotating body and having first tracks and one or more second tracks, a light source which emits light to the first and second tracks, first arrays positioned mutually offset in width direction of the disc perpendicular to measurement direction of the first and second tracks such that the first arrays receive light reflected or transmitted by the first tracks and output first signals, two second arrays positioned to receive light reflected or transmitted by the second track such that the second arrays output two second signals having mutually different phases, and a device which generates position data of the body based on one or more first signals and one of the second signals selected based on the first signals. Each first track has an incremental pattern along the measurement direction, and the second track has an absolute pattern along the measurement direction.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully