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Small fingerprint verifier and its use method

A fingerprint verification and fingerprint technology, which is applied to record carriers, instruments, and image data processing used by machines, and can solve the problems of large size of fingerprint verification instruments.

Inactive Publication Date: 2002-10-09
LENOVO INNOVATIONS LTD HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment to accommodate such a large-volume fingerprint authenticator is also bulky

Method used

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  • Small fingerprint verifier and its use method
  • Small fingerprint verifier and its use method
  • Small fingerprint verifier and its use method

Examples

Experimental program
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Embodiment Construction

[0025] specific implementation plan

[0026] Hereinafter, a fingerprint authenticator according to the present invention will be described with reference to the accompanying drawings.

[0027] figure 1 The circuit configuration of the fingerprint authenticator according to the first embodiment of the present invention is shown. refer to figure 1 , the fingerprint verification device 10 includes a prism 2, a finger detector 3, a power supply circuit 5, a light source switch (drive switch) 6, a fingerprint verification circuit 7, a photosensitive sensor 8, a unit switch 9, and first to third light emitting devices 13 to 15 , such as light-emitting diodes.

[0028] The finger detector 3 is a transparent touch panel sensor with a transparent conductive film. The finger detector 3 is arranged on one plane of the prism 2, and in this embodiment as a whole. However, the finger detector 3 may be provided separately from the prism 2 . The finger detector 3 is connected to the lig...

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Abstract

The fingerprint verification device includes first and second light emitting devices (13, 14), an imaging unit (8), a fingerprint verification circuit (7) and a drive switch (6). The first light emitting device (13) emits first light of a first color, and the second light emitting device (14) emits second light of a second color. The imaging unit (8) detects the fingerprint image of the finger from the first light reflected from the finger. The fingerprint verification circuit (7) has registered fingerprint images, and compares the measured fingerprint image with each of the registered fingerprint images to determine whether the measured fingerprint image is consistent with any registered fingerprint images. When the measured fingerprint image matches any registered fingerprint image, it outputs a matching signal. In response to this match signal, the actuation switch (6) turns on the second light emitting device.

Description

technical field [0001] The present invention relates to a fingerprint verification device, more precisely to a small fingerprint verification device and a method for using the same. Background technique [0002] Fingerprint verification for access control. For this, a fingerprint authenticator is used, which is stationary. The fixed fingerprint authenticator is bulky. The equipment to accommodate such a large-volume fingerprint authenticator is also bulky. In order to reduce the size of the device. Fingerprint authenticators must be made small. [0003] Along with the above description, a fingerprint image input device is disclosed in Japanese Laid-Open Patent Application (JP-A-Heisei 6-176137). In this document, a fingerprint image input device includes an illuminating portion (1) for irradiating illuminating light almost vertically onto the outer surface of a finger. The imaging section (2) receives light reflected and scattered by the finger. The finger placement p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00G06K19/07G06V40/13G07C9/00
CPCG06K19/07G07C9/37G06V40/13
Inventor 细川知志
Owner LENOVO INNOVATIONS LTD HONG KONG
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