DE68923475D1 - Taktschaltgerät einer IC-Karte. - Google Patents

Taktschaltgerät einer IC-Karte.

Info

Publication number
DE68923475D1
DE68923475D1 DE68923475T DE68923475T DE68923475D1 DE 68923475 D1 DE68923475 D1 DE 68923475D1 DE 68923475 T DE68923475 T DE 68923475T DE 68923475 T DE68923475 T DE 68923475T DE 68923475 D1 DE68923475 D1 DE 68923475D1
Authority
DE
Germany
Prior art keywords
card
switching device
clock switching
clock
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE68923475T
Other languages
English (en)
Other versions
DE68923475T2 (de
Inventor
Masafumi Katsutani
Kazuhiro Yaegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE68923475D1 publication Critical patent/DE68923475D1/de
Publication of DE68923475T2 publication Critical patent/DE68923475T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
DE68923475T 1988-04-09 1989-04-07 Taktschaltgerät einer IC-Karte. Expired - Lifetime DE68923475T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63087996A JPH0610830B2 (ja) 1988-04-09 1988-04-09 Ｉｃカードのクロック信号切換装置

Publications (2)

Publication Number Publication Date
DE68923475D1 true DE68923475D1 (de) 1995-08-24
DE68923475T2 DE68923475T2 (de) 1996-02-15

Family

ID=13930410

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68923475T Expired - Lifetime DE68923475T2 (de) 1988-04-09 1989-04-07 Taktschaltgerät einer IC-Karte.

Country Status (4)

Country Link
US (1) US4968899A (de)
EP (1) EP0337684B1 (de)
JP (1) JPH0610830B2 (de)
DE (1) DE68923475T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2723296B2 (ja) * 1989-06-06 1998-03-09 株式会社東芝 携帯可能媒体
US5313619A (en) * 1991-05-16 1994-05-17 Gerard J. Severance External clock unit for a computer
US5155443A (en) * 1990-12-19 1992-10-13 Emhart Industries, Inc. Machine for inspecting the wall thickness of glass containers
JPH04336308A (ja) * 1991-05-13 1992-11-24 Nec Corp マイクロコンピュータ
US5483185A (en) * 1994-06-09 1996-01-09 Intel Corporation Method and apparatus for dynamically switching between asynchronous signals without generating glitches
US5801561A (en) * 1995-05-01 1998-09-01 Intel Corporation Power-on initializing circuit
JP3493096B2 (ja) * 1996-06-07 2004-02-03 株式会社東芝 半導体集積回路、ｉｃカード、及びｉｃカードシステム
GB2321744B (en) * 1997-01-30 2000-05-17 Motorola Inc Portable data carrier and method for selecting operating mode thereof
DE10007285A1 (de) * 2000-02-17 2001-08-23 Orga Kartensysteme Gmbh Chipkarte zum Erfassen von Messdaten sowie ein Chipkartensystem mit einer solchen Chipkarte
DE10007284A1 (de) * 2000-02-17 2001-08-23 Orga Kartensysteme Gmbh Chipkarte
DE10057477B4 (de) * 2000-11-20 2007-05-24 Sagem Orga Gmbh Chipkarte
DE102004021346A1 (de) * 2004-04-30 2005-12-01 Micronas Gmbh Chip mit Versorgungseinrichtung
US7081780B2 (en) * 2004-06-01 2006-07-25 Randall Don Briggs Reset circuitry for an integrated circuit
JP5166927B2 (ja) * 2007-06-12 2013-03-21 ルネサスエレクトロニクス株式会社 処理装置
DE102007039226A1 (de) 2007-08-20 2009-02-26 Giesecke & Devrient Gmbh Echtzeitmessung auf einem portablen Datenträger
JP5742910B2 (ja) * 2013-10-23 2015-07-01 大日本印刷株式会社 Ｉｃチップ、ｉｃカード、及びｉｃチップの動作方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2080585B (en) * 1980-07-22 1984-07-04 Tokyo Shibaura Electric Co Semiconductor integrated circuit with reduced power consumption
JPS59193366A (ja) * 1983-04-19 1984-11-01 Ricoh Co Ltd 交流電源の瞬断検知装置
US4651277A (en) * 1983-09-16 1987-03-17 Sanyo Electric Co., Ltd. Control system for a magnetic disk drive unit
JPS60173949A (ja) * 1984-02-20 1985-09-07 Fujitsu Ltd クロツク供給方式
EP0160163B1 (de) * 1984-04-02 1988-06-08 Mitsubishi Denki Kabushiki Kaisha Steuersystem für eine frequenzvariable Stromversorgung
JPS61236240A (ja) * 1985-04-12 1986-10-21 Nec Corp 分散型デ−タ処理装置のクロツク選択方式
US4675539A (en) * 1985-09-17 1987-06-23 Codex Corporation Backup power system
JPS62237592A (ja) * 1986-04-08 1987-10-17 Casio Comput Co Ltd Ｉｃカ−ドにおけるクロツク切換方式
DE3780381T2 (de) * 1986-08-29 1993-02-25 Toshiba Kawasaki Kk Tragbarer datentraeger.
US4850000A (en) * 1987-11-05 1989-07-18 Dallas Semiconductor Corporation Gated shift register

Also Published As

Publication number Publication date
JPH0610830B2 (ja) 1994-02-09
DE68923475T2 (de) 1996-02-15
EP0337684A3 (en) 1990-12-27
EP0337684A2 (de) 1989-10-18
EP0337684B1 (de) 1995-07-19
US4968899A (en) 1990-11-06
JPH01259480A (ja) 1989-10-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

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