Angle detection device and survey instrument including the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 25, 2017
Grant Date -
Feb 4, 2016
app pub date -
Aug 3, 2015
filing date -
Aug 4, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An angle detection device include photoemitters, photodetectors, a scale plate disposed therebetween, and a control section to control them. The control section includes an analog-front-end (AFE) to convert analog signals of the photodetectors to digital signals and an arithmetic processor to detect a rotating posture of the scale plate based on the digital signals. The control section simultaneously emits lights from the photoemitters and simultaneously receives the lights by the corresponding photodetectors. The control section then executes the following data processing for each photodetector one by one in sequence: outputting the analog signals representing an entire area of a light-receiving area of one of the photodetectors and outputting the digital signals converted by the AFE to the processor.
First Claim
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Family
International Classification(s)
- 2015 Application Filing Year
- G01C Class
- 2933 Applications Filed
- 2414 Patents Issued To-Date
- 82.31 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G01C Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 25, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 25, 2029 |
