Method for light flicker analysis and device thereof
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United States of America Patent
Stats
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Mar 31, 2015
filing date -
Mar 31, 2014
priority date (Note) -
In Force
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Abstract
This invention provides devices and methods of determining flicker-related parameters of a light emitting source. In one embodiment, the method has the following steps: a) acquiring one or more photo images or video images of a light emitting source with an image capturing device that has a rolling shutter; b) generating, with a processor, from the photo images or video images a flicker frame having one or more flicker dark lines, wherein each flicker dark lines has an output column value of 1; and c) generating, with a processor, one or more flicker-related parameters based on the flicker frame, thereby determining the flicker-related parameters of the light emitting source.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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HONG KONG BAPTIST UNIVERSITY | HONG KONG |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Lam, Ka Man | Hong Kong, CN | 1 | 3 |
# of filed Patents : 1 Total Citations : 3 |
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Maintenance Fees
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Dec 06, 2021 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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Oct 29, 2021 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 29, 2021 |
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Apr 13, 2017 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Oct 29, 2013 | I | Issuance | |
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Oct 31, 2012 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 18, 2012 | P | Published | |
Apr 25, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YAMAMOTO, KENTARO;YONESHIMA, HISASHI;TAKAZAWA, SHIGEYOSHI;SIGNING DATES FROM 20110414 TO 20110415;REEL/FRAME:026175/0353 Owner name: YKK CORPORATION OF AMERICA, GEORGIA |
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