Position detection device and imaging device
US-2024159571-A1 · May 16, 2024 · US
Position detecting device
US9322677B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9322677-B2 |
| Application number | US-201314045384-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 3, 2013 |
| Priority date | Oct 4, 2012 |
| Publication date | Apr 26, 2016 |
| Grant date | Apr 26, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A position detecting device that includes a recording medium provided with a first recording track in which a non-repetitive signal composed of binary information is recorded and a second recording track in which a signal for specifying a reading section within a section of information of 1 unit for the non-repetitive signal and information reading means that includes a first detection head and a second detection head and for reading each 1 unit information of the non-repetitive signal from the first recording track by using the first detection head in the reading section within a section of information of 1 unit for the non-repetitive signal specified based upon the signal recorded in the second recording track by the second detection head.
First claim
Opening claim text (preview).
What is claimed is: 1. A position detecting device comprising: a recording medium provided with a first recording track in which a non-repetitive signal composed of binary information is recorded and a second recording track in which a signal for specifying a reading section within a section of information of 1 unit for the non-repetitive signal is recorded; and information reading means comprising a first detection head and a second detection head, wherein the information reading means reads each 1 unit information of the non-repetitive signal from the first recording track by using the first detection head in the reading section within a section of information of 1 unit for the non-repetitive signal specified based upon the signal recorded in the second recording track by the second detection head, wherein in the first recording track, each 1 unit information is recorded in an effective section longer than the reading section within the section of information of 1 unit for the non-repetitive signal, and wherein the first recording track is provided with an invalid section that records information different from the information recorded in the effective section and is located at a border portion between sections in which non-repetitive signals composed of the same binary information are continuously recorded. 2. The position detecting device according to claim 1 , wherein the invalid section in which information different from the information in the effective section is recorded is shorter than the effective section. 3. The position detecting device according to claim 1 , wherein the recording medium is a magnetic recording medium, and the information reading means detects a signal recorded in the first recording track and a non-repetitive signal recorded in the second recording track by using a magnetic detection head.
Assignees
Inventors
Classifications
- G01D5/2458Primary
with incremental and absolute tracks on separate encoders · CPC title
- G01D9/10Primary
the recording element, e.g. stylus, being controlled in accordance with the variable, and the recording medium, e.g. paper roll, being controlled in accordance with time · CPC title
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- What does patent US9322677B2 cover?
- A position detecting device that includes a recording medium provided with a first recording track in which a non-repetitive signal composed of binary information is recorded and a second recording track in which a signal for specifying a reading section within a section of information of 1 unit for the non-repetitive signal and information reading means that includes a first detection head and…
- Who is the assignee on this patent?
- Dmg Mori Seiki Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01D5/2458. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).