Encoder for detecting a position of a detection target
AssigneeOlympus Corporation
InventorsYoshimi Kuroda, Eiji Yamamoto
Life of this patent
Estimating the term…
Abstract
A plurality of analog signals are detected in a sensor in accordance with a displacement of a scale on which a pattern with a predetermined cycle is formed. The plurality of analog signals are subjected to signal processing in a signal processing portion, and then output from a sensor head. Setup switching is performed by a setup switching portion provided in the sensor head in such a manner that an output signal at this moment complies with a signal input specification of a positional information output device. Further, the sensor, the signal processing portion and the setup switching portion form an integrated circuit.
Claims27
An encoder comprising:
- a scale having a pattern with a predetermined cycle;
- and
- a single sensor head having an integrated circuit which includes at least a signal processing portion which subjects, to signal processing, a plurality of analog signals in accordance with a relative displacement with the scale to thereby generate various output signals having different characteristics, and a setup switching portion which selectively performs setup switching concerning the output signals having different characteristics according to a requirement specification of the encoder, wherein
- the setup switching portion has a memory for performing the setup switching, and
- the setup switched by the setup switching portion is to change setup information which is recorded in the memory.
An encoder comprising:
- a scale having a pattern with a predetermined cycle;
- and
- a single sensor head having an integrated circuit which includes at least a signal processing portion which subjects, to signal processing, a plurality of analog signals in accordance with a relative displacement with the scale to thereby generate various output signals having different characteristics, and a setup switching portion which selectively performs setup switching concerning the output signals having different characteristics according to a requirement specification of the encoder, wherein
- at least one setup switching electrode which performs the setup switching is electrically connected with the setup switching portion, and
- the setup switched by the setup switching portion is to switch an electrical connection state between the setup switching electrode and an electrode having a predetermined potential which is formed at a package of the sensor head.
An encoder comprising:
- a scale having a pattern with a predetermined cycle;
- and
- a single sensor head having an integrated circuit which includes at least a signal processing portion which subjects, to signal processing, a plurality of analog signals in accordance with a relative displacement with the scale to thereby generate various output signals having different characteristics, and a setup switching portion which selectively performs setup switching concerning the output signals having different characteristics according to a requirement specification of the encoder, wherein
- the sensor head has at least three setups which are able to be switched by the setup switching portion.
Dependencies are inferred from the claim text.