JP2002502520A - 利得制御形態を有するフィンガープリントセンサ及びそれに関連する方法 - Google Patents
利得制御形態を有するフィンガープリントセンサ及びそれに関連する方法Info
- Publication number
- JP2002502520A JP2002502520A JP54930298A JP54930298A JP2002502520A JP 2002502520 A JP2002502520 A JP 2002502520A JP 54930298 A JP54930298 A JP 54930298A JP 54930298 A JP54930298 A JP 54930298A JP 2002502520 A JP2002502520 A JP 2002502520A
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- Prior art keywords
- fingerprint
- range
- conversion
- reference voltage
- converter
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
- G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Bioinformatics & Computational Biology (AREA)
- Evolutionary Biology (AREA)
- Evolutionary Computation (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Artificial Intelligence (AREA)
- Image Input (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.指紋検出部のアレイと、制御可能な範囲を有するとともに、その範囲に基づ いて前記指紋検出部のアレイからのアナログ信号をデジタル信号に変換するアナ ログ−デジタル(A/D)変換手段と、そのA/D変換手段及び前記指紋検出部 のアレイを操作して前記指紋検出部のアレイのうちの予め設定したもののA/D 変換を順次実行する走査手段と、以前のA/D変換に基づいて前記A/D変換の 範囲を制御して変換分解能を増大させる範囲設定手段と、前記A/D変換手段が 、対応する複数の指紋検出部からのアナログ信号を同時に変換する複数のA/D コンバータを具えることを特徴とするフィンガープリントセンサ。 2.前記A/D変換手段が、少なくとも1個のレンジポイントの設定を許容する 少なくとも1個のレンジ入力部を具え、前記範囲設定手段がプロセッサと、その プロセッサと前記少なくとも1個のレンジ入力部との間に接続した少なくとも1 個のデジタル−アナログコンバータとを具え、前記A/Dコンバータが、第1の レンジポイントの設定を許容する第1基準電圧入力部を具えることを特徴とする 請求の範囲1記載のフィンガープリントセンサ。 3.前記A/D変換手段が、第1のレンジポイントの設定を許容する第2基準電 圧入力部と、前記範囲の設定を許容する少なくとも1個の増幅器とを具え、前記 範囲設定手段が、以前のA/D変換に基づいてヒストグラムを発生させるヒスト グラム発生手段を具えることを特徴とする請求の範囲2記載のフィンガープリン トセンサ。 4.前記範囲設定手段が、前記指紋検出部のうちの最初ものに対するデフォール ト範囲を設定するデフォールト設定手段を具え、前記指紋検出部の各々が、電界 検出電極及びそれに関連する増幅器を具え、前記電界検出電極の各々に関連する とともに前記増幅器の各々に接続したシールド電極を有することを特徴とする請 求の範囲1か ら3のうちのいずれか1項に記載のフィンガープリントセンサ。 5.指紋検出部のアレイと、少なくとも一つの基準電圧入力部を有するとともに 、少なくとも一つの基準電圧に基づいて少なくとも1個の指紋検出部からのアナ ログ信号をデジタル信号に変換する少なくとも1個のアナログ−デジタル(A/ D)コンバータと、前記少なくとも1個のA/Dコンバータ及び前記指紋検出部 のアレイを操作して、前記指紋検出部のアレイのうちの予め設定されたものの順 次のA/D変換を実行する走査手段と、以前のA/D変換に基づいて少なくとも 1個の前記A/Dコンバータの少なくとも一つの基準電圧を制御して、変換分解 能を向上させる基準電圧決定手段とを具えることを特徴とするフィンガープリン トセンサ。 6.前記少なくとも1個のA/Dコンバータが、対応する複数の指紋検出部から のアナログ信号を同時に変換する複数のA/Dコンバータを具えることを特徴と する請求の範囲5記載のフィンガープリントセンサ。 7.前記基準電圧設定手段が、プロセッサと、そのプロセッサと少なくとも1個 の基準電圧入力部との間に接続した少なくとも1個のデジタル−アナログコンバ ータとを具え、その少なくとも1個のA/Dコンバータと共同してその範囲の設 定を許容する少なくとも1個の増幅器を更に具え、前記基準電圧設定手段が、以 前のA/D変換に基づいてヒストグラムを発生させるヒストグラム発生手段を具 えることを特徴とする請求の範囲5又は6記載のフィンガープリントセンサ。 8.前記基準電圧設定手段が、前記指紋検出部のうちの最初のものに対して少な くとも一つのデフォールト基準電圧を設定するデフォールト設定手段を具え、前 記指紋検出部の各々が、電界検出電極と、それに関連する増幅器とを具え、前記 電界検出電極の各々に関連するとともに前記増幅器の各々に接続したシールド電 極を更に具えることを特徴とする請求の範囲5から7のうちのいずれか1項に 記載のフィンガープリントセンサ。 9.指紋検出部のアレイと、各々が少なくとも1個の基準電圧入力部を有すると ともに、少なくとも1個の基準電圧に基づいて少なくとも1個の指紋検出部から のアナログ信号をデジタル信号に変換する複数のアナログ−デジタル(A/D) コンバータと、前記複数のA/Dコンバータ及び前記指紋検出部のアレイを操作 して前記指紋検出部のアレイのうちの予め設定したものの順次のA/D変換を実 行する走査手段と、以前のA/D変換に基づいて前記少なくとも1個のA/Dコ ンバータの少なくとも一つの基準電圧を制御して変換分解能を増大させる基準電 圧設定手段とを具え、前記基準電圧設定手段が、以前のA/D変換に基づいてヒ ストグラムを発生させるヒストグラム発生手段と、プロセッサと、そのプロセッ サと前記少なくとも1個の基準電圧入力部との間に接続した少なくとも1個のデ ジタル−アナログコンバータと、各々のA/Dコンバータと共同してその範囲の 設定を許容する増幅器とを具えることを特徴とするフィンガープリントセンサ。 10.前記基準電圧設定手段が、前記指紋検出部のうちの最初のものに対して少 なくとも1個のデフォールト基準電圧を設定するデフォールト設定手段を具え、 前記指紋検出部の各々が、電界検出電極と、それに関連する増幅器とを具え、前 記電界検出電極の各々に関連するとともに前記増幅器の各々に接続したシールド 電極を有することを特徴とするフィンガープリントセンサ。 11.指紋検出部のアレイを具えるフィンガープリントセンサを操作する方法で あって、 制御可能な範囲を有する少なくとも1個のA/Dコンバータを用いて、前記指 紋検出部のアレイからのアナログ信号をデジタル信号に変換するステップと、 前記指紋検出部のアレイのうちの予め設定したものの順次のA/D変換を実行 するステップと、 以前のA/D変換に基づいて少なくとも1個のA/Dコンバータの前記範囲を 決定し及び制御して、変換分解能を増大させ、前記少なくとも1個のA/Dコン バータの範囲を、少なくとも1個の基準電圧に基づいて制御可能にするステップ とを具え、 前記範囲を決定し及び制御するステップが、少なくとも1個の基準電圧を制御 するステップを具えることを特徴とする方法。 12.前記アナログ信号を変換するステップが、前記範囲の設定を許容するため に制御可能な利得を有する少なくとも1個の増幅器を用いて前記アナログ信号の 変換を行うステップを具え、前記範囲を決定し及び制御するステップが、前記増 幅器を用いて範囲を制御するステップと、以前のA/D変換に基づいてヒストグ ラムを発生させるステップと、前記指紋検出部のうちの予め設定されたもののデ フォールト範囲を設定するステップとを具えることを特徴とする請求の範囲11 記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/858,142 | 1997-05-16 | ||
US08/858,142 US6259804B1 (en) | 1997-05-16 | 1997-05-16 | Fingerprint sensor with gain control features and associated methods |
PCT/US1998/009292 WO1998052157A1 (en) | 1997-05-16 | 1998-05-06 | Fingerprint sensor with gain control features and associated methods |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002502520A true JP2002502520A (ja) | 2002-01-22 |
JP4129892B2 JP4129892B2 (ja) | 2008-08-06 |
Family
ID=25327595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54930298A Expired - Lifetime JP4129892B2 (ja) | 1997-05-16 | 1998-05-06 | 利得制御形態を有するフィンガープリントセンサ及びそれに関連する方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6259804B1 (ja) |
EP (1) | EP0985196B9 (ja) |
JP (1) | JP4129892B2 (ja) |
KR (1) | KR20010012635A (ja) |
CN (1) | CN1290383A (ja) |
AU (1) | AU7371598A (ja) |
DE (1) | DE69809907T2 (ja) |
WO (1) | WO1998052157A1 (ja) |
Cited By (4)
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JP2003536085A (ja) * | 2000-06-09 | 2003-12-02 | アイデックス・エーエスエー | 特に指紋センサのためのセンサチップ |
JP2011524036A (ja) * | 2008-05-08 | 2011-08-25 | ソナベーション, インコーポレイテッド | 音響インピディオグラフィ生体認証感知のための方法およびシステム |
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- 1998-05-06 WO PCT/US1998/009292 patent/WO1998052157A1/en not_active Application Discontinuation
- 1998-05-06 KR KR1019997010596A patent/KR20010012635A/ko not_active Application Discontinuation
- 1998-05-06 JP JP54930298A patent/JP4129892B2/ja not_active Expired - Lifetime
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Cited By (7)
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JP2003536085A (ja) * | 2000-06-09 | 2003-12-02 | アイデックス・エーエスエー | 特に指紋センサのためのセンサチップ |
US7848550B2 (en) | 2000-06-09 | 2010-12-07 | Idex Asa | Sensor unit, especially for fingerprint sensors |
JP4708671B2 (ja) * | 2000-06-09 | 2011-06-22 | アイデックス・エーエスエー | 特に指紋センサのためのセンサチップ |
JP2011524036A (ja) * | 2008-05-08 | 2011-08-25 | ソナベーション, インコーポレイテッド | 音響インピディオグラフィ生体認証感知のための方法およびシステム |
US9501685B2 (en) | 2013-02-22 | 2016-11-22 | Idex Asa | Integrated finger print sensor |
US9881196B2 (en) | 2013-02-22 | 2018-01-30 | Idex Asa | Integrated finger print sensor |
US10095906B2 (en) | 2014-02-21 | 2018-10-09 | Idex Asa | Sensor employing overlapping grid lines and conductive probes for extending a sensing surface from the grid lines |
Also Published As
Publication number | Publication date |
---|---|
EP0985196A1 (en) | 2000-03-15 |
CN1290383A (zh) | 2001-04-04 |
EP0985196B1 (en) | 2002-12-04 |
WO1998052157A1 (en) | 1998-11-19 |
US6259804B1 (en) | 2001-07-10 |
KR20010012635A (ko) | 2001-02-26 |
DE69809907D1 (de) | 2003-01-16 |
DE69809907T2 (de) | 2004-07-29 |
JP4129892B2 (ja) | 2008-08-06 |
AU7371598A (en) | 1998-12-08 |
EP0985196B9 (en) | 2003-05-02 |
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