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Fingerprint recognition device for capacitance sensing, using driver having pipeline scan structure

A fingerprint recognition and capacitance detection technology, applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, applications, etc., can solve problems such as touch sensitivity performance degradation, and achieve the effect of eliminating fixed pattern noise and improving signal-to-noise ratio.

Inactive Publication Date: 2018-06-08
HANSHIN UNIV IND ACADEMIC COOPERATION FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the ridges and troughs of the detected ridges are extremely small with several femto Farads and the electrodes formed of indium tin oxide (ITO) in the touch screen panel in contact with the fingerprint include, for example, capacitance (capacitance) and resistance (resistance) and other parasitic (parasitic) elements, so these parasitic elements can cause serious performance degradation of both touch sensitivity (sensitivity) and accuracy

Method used

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  • Fingerprint recognition device for capacitance sensing, using driver having pipeline scan structure
  • Fingerprint recognition device for capacitance sensing, using driver having pipeline scan structure
  • Fingerprint recognition device for capacitance sensing, using driver having pipeline scan structure

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Embodiment Construction

[0040] Regarding the embodiments of the present invention disclosed herein, only specific structural and functional descriptions are shown for the purpose of illustrating the embodiments of the present invention, and the embodiments of the present invention may be implemented in various forms and should not be construed as Limited to the examples described herein.

[0041] Various modifications may be made to the various embodiments of the invention, and specific embodiments are shown in the drawings, and the associated detailed description is set forth. However, this is not to limit the various embodiments of the inventive concept to specific embodiments, but it should be understood that the inventive concept covers all modifications, equivalents and / or alternatives of the invention, as long as these forms belong to the claimed within the scope of the appended claims and their equivalents.

[0042] It should be understood that the terms "first" and "second" are used herein t...

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Abstract

A fingerprint recognition device for capacitance sensing according to an embodiment of the present invention may comprise: a fingerprint sensor cell array including a plurality of cells, which are connected to a plurality of row lines and a plurality of column lines, respectively; a plurality of column line sets including a predetermined number of column lines out of the fingerprint sensor cell array; a variable cycle clock generating unit, which can operate a pipeline process performed for each column line included in the column line set; and a multi-column line selecting unit for selecting one column line from among the column lines of the cell array, wherein the variable cycle clock generating unit may sequentially control an integral action executed on each column line included in thecolumn line set, at different times.

Description

technical field [0001] The invention relates to a fingerprint identification device for capacitance detection. More specifically, the present invention relates to a fingerprint recognition device for capacitive detection using a driver of a pipe scanning structure. Background technique [0002] Fingerprints have been widely used in many biometrics fields due to their high recognition rate, security and stability, and currently have substantially individualized data. Recently, as fingerprint recognition technology is automated, a fingerprint recognition system that acquires fingerprints in real time has become necessary. [0003] Recently, with the emergence of low-cost sensors, the fingerprint detection sensors used in such fingerprint recognition systems are not limited to special security devices, and are applied to peripheral devices (such as keyboards and mice) of personal computers (Personal Computer), making electronic The scope of business use is gradually expanding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00A61B5/1172
CPCA61B5/1172H03K23/54G06F18/00G06V40/1306G06V40/1376
Inventor 吕协九郑昇敏
Owner HANSHIN UNIV IND ACADEMIC COOPERATION FOUND
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