Optical Fingerprint Sensor Technology sub portfolio

Fingerprint technology is one of the most popular and biometric modality to verify the identity of individuals. The capacitance based fingerprint requires the device a bulky sensing and detecting sensor. And therefore electro-optical imaging that enhances optical sensors and improves its resistance to deception. In electro-optical imaging, a voltage is placed across a light-emitting polymer film. When the individual places his finger on the sensor, the fingerprint ridges present a ground to the polymer surface that creates a small current and generates light. This produces a high contrast image as the valleys of the fingerprint remain dark and the polymer is directly linked with the optical detector. The inventions provide alternative solution to mechanical and capacitance based technology. These patents provides the best sensor technology on the various passive card applications.

Total 5 Assets

Multiple charge-coupled biometric sensor array

Inventor Moon J. Kim
Current Assignee KIM MOON J
Original Assignee Moon J. Kim
Priority date 2011-06-14

Embodiments of the present invention relate to fingerprint scanning. Specifically, the present invention relates to a multi-sided fingerprint scanning device on a card (e.g., credit card, smart card, etc.), an associated energy-efficient method for attaining accurate fingerprint information using a multiple charge-coupled biometric sensor array. In a typical embodiment, a scanning device will be provided that includes a scanning area comprised of a set (e.g., at least one) of imaging pixel electrodes (e.g., arranged adjacent to one another in a grid-like or other fashion). As a user presses his/her finger against the scanning area, a portion of the finger will contact a plurality of electrodes. When this occurs, a voltage source of the device will apply a first voltage to each of the plurality of electrodes. A meter of the device will take a first electrical measurement (e.g., resistance and/or charged skin voltage) of the plurality of electrodes. The voltage source of the device will apply a second voltage to the plurality of electrodes. The meter of the device will take a second electrical measurement (e.g., resistance and/or charged skin voltage) of the plurality of electrodes. The voltage level difference between the first electrical measurement and second electrical measurement is calculated. The voltage level difference provides accurate fingerprint information.

Image array with localized light source

Inventor Moon J. Kim
Current Assignee KIM MOON J
Original Assignee Moon J. Kim
Priority date 2011-05-17

Embodiments of the present invention provide lighting for an image array. Specifically, embodiments of the present invention provide a system and method for providing localized lighting for an image array. In a typical embodiment, a set of pixels being scanned in the image array is identified. A subset of light sources within an array of light sources that corresponds to the set of pixels is engaged. After the pixels have been scanned, the subset of light sources is disengaged.

Dynamically configurable photovoltaic cell array

Inventor Moon J. Kim
Current Assignee KIM MOON J
Original Assignee Moon J. Kim
Priority date 2011-06-14

Embodiments of the present invention relate to photovoltaic cells. Specifically, the present invention relates to photovoltaic (PV) cells configurable for energy conversion and imaging. In a typical embodiment, each photovoltaic cell (PV) in the photovoltaic array is divided into a pixel-based array. Each photovoltaic cell is coupled to a set of switches and the photovoltaic cell is dynamically configured for energy conversion or imaging based on the settings of at least one of the switches.

Contact Us
How do I submit a patent for sale or license?

In order to submit a patent for sale or license, please complete and submit the contact form with all relevant information.  Your information is secure and will not be shared.

Address

서울시 송파구 법원로 128, SKV1 메트로시티 B동 812호

General Enquiries

오른쪽 이메일 칸에 문의사항을 작성해주세요.

Business Phone

KOREA +82 (02) 400 3353
USA +1 (650) 690 0795