Control system for image input device, especially fingerprint image input device

• US 20020108047A1
• Filed: 02/06/2001
• Published: 08/08/2002
• Est. Priority Date: 02/06/2001
• Status: Active Grant

• Current Assignee: Startek Engineering Inc.
• Original Assignee: Startek Engineering Inc.
• Inventors: Hsu, Wen-Hsing, Bee, Chap-Meng
• Granted Patent: US 6,839,845 B2
• Time in Patent Office: Days
• US Class Current: 713/186
• CPC Class Codes: G06V 40/13 Sensors therefor

Abstract

A novel control system for image input device, especially fingerprint image input device, is disclosed. The control system comprises a fingerprint image input device selection module, an instruction conversion module and a fingerprint image size determination module. The fingerprint image input device selection module selects a particular fingerprint image input device from a variety of fingerprint image input devices. The instruction conversion module generates, upon an image capture instruction or a match instruction from a fingerprint verification software, particular image capture instructions to a the selected fingerprint image input device, wherein the instruction pertains to a specification of image as selected by a user or determined with a particular method. The fingerprint image size determination module determines the specification, including the resolution and the size of fingerprint image to be captured. The fingerprint image input device then capture a fingerprint image according to the instruction, under the selected or designated specification. This invention also discloses a method to determine a basic point and to capture a fingerprint image within an area based on the basic point.

Claims

1. A control system for fingerprint image input device, comprising:

a fingerprint image input device selection module, to select a set of communication protocol applicable to a particular model of fingerprint image input device and to establish a communication with said fingerprint image input device;

an instruction conversion module, to convert an fingerprint image input device control instruction into a control instruction applicable to said fingerprint image input device;

a fingerprint image size determination module, to determine specification of fingerprint image to be input by said fingerprint image input device;

said specification including resolution and number of pixels of said fingerprint image; and

a user interface to enable a user to input at least said control instruction.

2. The control system for fingerprint image input device according to claim 1 wherein said instruction conversion module comprises a look-up-table of instructions for said fingerprint image input device.

3. The control system for fingerprint image input device according to claim 1 wherein said fingerprint image input device selection module comprises a means to automatically detect an online fingerprint image input device.

4. The control system for fingerprint image input device according to claim 1 wherein said fingerprint image size determination module further comprises a means to allocate a basic point of a captured fingerprint image wherein said basic point locates at center of an area wherein most feature points of said fingerprint image locate.