OPTICAL TOUCH APPARATUS AND TOUCH SENSING METHOD THEREOF
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United States of America Patent
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N/A
Issued Date -
Jun 30, 2016
app pub date -
Jul 23, 2015
filing date -
Jul 23, 2015
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
The invention provides an optical touch apparatus including a light curtain generator, a light detection apparatus, and an operation unit, and a touch sensing method thereof. In a predetermined period where no touch object is on the detection surface, the operation unit controls the light curtain generator to generate a light curtain and obtains a first image by using the light detection apparatus, analyzes the first image to obtain an interference signal, and sets an area where the interference signal is located on the detection surface as an interference area. During a touch operation period, the operation unit obtains a second image, analyzes and determines whether a touch object of a touch signal in the second image is located in the interference area, and calculates a respective touch coordinate of the touch object corresponding to the touch signal based on the touch signal not located in the interference area.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
CN | A | CN105808016 | Dec 31, 2014 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED APPLICATION FOR A PATENT FOR INV. | Optical touch device and touch sensing method thereof | Jul 27, 2016 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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CORETRONIC CORPORATION | NO 11 LI-HSIN RD HSINCHU SCIENCE PARK HSIN-CHU 300 |
International Classification(s)

- 2015 Application Filing Year
- G06F Class
- 57200 Applications Filed
- 45873 Patents Issued To-Date
- 80.20 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Cheng, Je-Fu | Hsin-Chu, TW | 9 | 13 |
# of filed Patents : 9 Total Citations : 13 | |||
Hung, Hao-Feng | Hsin-Chu, TW | 12 | 20 |
# of filed Patents : 12 Total Citations : 20 |
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Patent Citation Ranking
- 0 Citation Count
- G06F Class
- 0 % this patent is cited more than
- 9 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 30, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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