Systems, methods and techniques for inputting text into mobile devices using a camera-based keyboard
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 2018
Issued Date -
N/A
app pub date -
Nov 10, 2015
filing date -
Nov 10, 2015
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
Systems, methods and techniques are provided for interacting with mobile devices using a camera-based keyboard. The system comprises a processor system including at last one processor. The processor system is configured to at least capture a plurality of images in connection with the keyboard and at least one hand typing on the keyboard via the camera. Based on the plurality of captured images, the processor system is further configured to locate the keyboard, extract at least a portion of the keys on the keyboard, extract a hand, and detect a fingertip of the extracted hand. After that, a keystroke may be detected and localized through tracking the detected fingertip in at least one of the plurality of captured images, and a character corresponding to the localized keystroke may be determined.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
COLLEGE OF WILLIAM AND MARY | 519 RICHMOND ROAD P O BOX 8795 WILLIAMSBURG VA 23187-8795 | |
NANJING UNIVERSITY | 210093 NO 22 HANKOU ROAD GULOU DISTRICT JIANGSU NANJING NANJING CITY JIANGSU PROVINCE 210093 |
International Classification(s)

- 2015 Application Filing Year
- H04N Class
- 17427 Applications Filed
- 14242 Patents Issued To-Date
- 81.73 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Li, Qun | Williamsburg, US | 206 | 3141 |
# of filed Patents : 206 Total Citations : 3141 | |||
Lu, Sanglu | Nanjing, CN | 1 | 6 |
# of filed Patents : 1 Total Citations : 6 | |||
Xie, Lei | Nanjing, CN | 75 | 787 |
# of filed Patents : 75 Total Citations : 787 | |||
Yin, Yafeng | Nanjing, CN | 3 | 41 |
# of filed Patents : 3 Total Citations : 41 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 2 Citation Count
- H04N Class
- 27.70 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 20, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 20, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Apr 25, 2022 | 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 |
Apr 25, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 20, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 20, 2022 |
Nov 08, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 17, 2018 | CC | CERTIFICATE OF CORRECTION | |
Mar 20, 2018 | I | Issuance | |
Feb 28, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 30, 2018 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAKE, SARAH C.;REEL/FRAME:044781/0187 Owner name: THE UNITED STATES OF AMERICA, AS REPRESENTED BY TH Effective Date: Jan 30, 2018 |
Sep 19, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PAULY, MARKUS;KRAEMER, FLORIAN J.;HAKE, SARAH;SIGNING DATES FROM 20140227 TO 20140402;REEL/FRAME:039784/0535 Owner name: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, CALIF |
Aug 19, 2016 | AS | ASSIGNMENT | free format text: CONFIRMATORY LICENSE;ASSIGNOR:CALIFORNIA BERKELEY UNIVERSITY OF;REEL/FRAME:041328/0447 Owner name: ENERGY, UNITED STATES DEPARTMENT OF, DISTRICT OF C Effective Date: Aug 19, 2016 |
Dec 11, 2014 | P | Published | |
Jun 01, 2012 | F | Filing |

Matter Detail

Renewals Detail
