Lin Li

US Patent:

7812936, Oct 12, 2010

Filed:

Apr 9, 2007

Appl. No.:

11/733080

Inventors:

Richard Karl Fenrich - Blacksburg VA, US
Lin Li - Salem OR, US

Assignee:

Identification International, Inc. - Blacksburg VA

International Classification:

G06K 9/74

US Classification:

356 71

Abstract:

A fingerprint imaging system configured to capture an image of a friction ridge pattern of a subject (e. g. , a fingerprint, a palm print, a hand print, a footprint, etc. ). The system may include one or more components that reduce the impact of ambient light on the performance of the system. In some implementations, the system may reduce the impact of ambient light without requiring additional power (e. g. , to generate an increased amount of radiation) and without including “external” hoods and/or covers designed to block ambient light prior to the ambient light entering system. Instead, the system may reduce the impact of ambient light on performance by blocking ambient light internally within the system along an optical path of radiation used to electronically capture an image of the friction ridge pattern.

US Patent:

7903242, Mar 8, 2011

Filed:

Sep 24, 2010

Appl. No.:

12/889823

Inventors:

Richard Karl Fenrich - Blacksburg VA, US
Lin Li - Salem OR, US

Assignee:

Identification International, Inc. - Blacksburg VA

International Classification:

G06K 9/74

US Classification:

356 71, 382124

Abstract:

A fingerprint imaging system configured to capture an image of a friction ridge pattern of a subject (e. g. , a fingerprint, a palm print, a hand print, a footprint, etc. ). The system may include one or more components that reduce the impact of ambient light on the performance of the system. In some implementations, the system may reduce the impact of ambient light without requiring additional power (e. g. , to generate an increased amount of radiation) and without including “external” hoods and/or covers designed to block ambient light prior to the ambient light entering system. Instead, the system may reduce the impact of ambient light on performance by blocking ambient light internally within the system along an optical path of radiation used to electronically capture an image of the friction ridge pattern.

US Patent:

7986400, Jul 26, 2011

Filed:

Feb 24, 2011

Appl. No.:

13/034539

Inventors:

Richard Karl Fenrich - Blacksburg VA, US
Lin Li - Salem OR, US

Assignee:

Identification International, Inc. - Blacksburg VA

International Classification:

G06K 9/74

US Classification:

356 71

Abstract:

A fingerprint imaging system configured to capture an image of a friction ridge pattern of a subject (e. g. , a fingerprint, a palm print, a hand print, a footprint, etc. ). The system may include one or more components that reduce the impact of ambient light on the performance of the system. In some implementations, the system may reduce the impact of ambient light without requiring additional power (e. g. , to generate an increased amount of radiation) and without including “external” hoods and/or covers designed to block ambient light prior to the ambient light entering system. Instead, the system may reduce the impact of ambient light on performance by blocking ambient light internally within the system along an optical path of radiation used to electronically capture an image of the friction ridge pattern.