FR2707027A1 - Electronic and portable device for counting units - Google Patents

Electronic and portable device for counting units Download PDF

Info

Publication number
FR2707027A1
FR2707027A1 FR9307875A FR9307875A FR2707027A1 FR 2707027 A1 FR2707027 A1 FR 2707027A1 FR 9307875 A FR9307875 A FR 9307875A FR 9307875 A FR9307875 A FR 9307875A FR 2707027 A1 FR2707027 A1 FR 2707027A1
Authority
FR
France
Prior art keywords
counting
units
decrement
memory
portable device
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.)
Granted
Application number
FR9307875A
Other languages
English (en)
French (fr)
Other versions
FR2707027B1 (enExample
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.)
Schlumberger SA
Original Assignee
Schlumberger SA
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 Schlumberger SA filed Critical Schlumberger SA
Priority to FR9307875A priority Critical patent/FR2707027A1/fr
Publication of FR2707027A1 publication Critical patent/FR2707027A1/fr
Application granted granted Critical
Publication of FR2707027B1 publication Critical patent/FR2707027B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/40—Monitoring; Error detection; Preventing or correcting improper counter operation
    • H03K21/403—Arrangements for storing the counting state in case of power supply interruption
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0866—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by active credit-cards adapted therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
FR9307875A 1993-06-25 1993-06-25 Electronic and portable device for counting units Granted FR2707027A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9307875A FR2707027A1 (en) 1993-06-25 1993-06-25 Electronic and portable device for counting units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9307875A FR2707027A1 (en) 1993-06-25 1993-06-25 Electronic and portable device for counting units

Publications (2)

Publication Number Publication Date
FR2707027A1 true FR2707027A1 (en) 1994-12-30
FR2707027B1 FR2707027B1 (enExample) 1995-08-04

Family

ID=9448650

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9307875A Granted FR2707027A1 (en) 1993-06-25 1993-06-25 Electronic and portable device for counting units

Country Status (1)

Country Link
FR (1) FR2707027A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821485A3 (en) * 1996-06-28 1998-03-18 Oki Electric Industry Company, Limited Call-unit count device
WO2000010251A1 (en) * 1998-08-13 2000-02-24 Microchip Technology Incorporated A binary counter and method for counting to extend lifetime of storage cells

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH607799A5 (en) * 1975-03-11 1978-10-31 Ato Inc Device for detecting magnetic cards, particularly for controlling user facilities
GB2180083A (en) * 1985-09-06 1987-03-18 Motorola Inc Non-volatile electronic counters
DE3533740A1 (de) * 1985-09-21 1987-03-26 Bosch Gmbh Robert Waehlautomat
EP0268106A2 (de) * 1986-11-11 1988-05-25 GAO Gesellschaft für Automation und Organisation mbH System zur bargeldlosen Durchführung von Transaktionen
EP0421409A2 (en) * 1989-10-06 1991-04-10 International Business Machines Corporation Transaction system security method and apparatus
EP0423035A1 (fr) * 1989-10-13 1991-04-17 Gemplus Card International Système de paiement ou de transfert d'informations par carte à mémoire électronique porte-monnaie
FR2667192A1 (fr) * 1990-09-20 1992-03-27 Gemplus Card Int Procede de comptage en memoire eeprom et son utilisation pour la realisation d'un compteur securise.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH607799A5 (en) * 1975-03-11 1978-10-31 Ato Inc Device for detecting magnetic cards, particularly for controlling user facilities
GB2180083A (en) * 1985-09-06 1987-03-18 Motorola Inc Non-volatile electronic counters
DE3533740A1 (de) * 1985-09-21 1987-03-26 Bosch Gmbh Robert Waehlautomat
EP0268106A2 (de) * 1986-11-11 1988-05-25 GAO Gesellschaft für Automation und Organisation mbH System zur bargeldlosen Durchführung von Transaktionen
EP0421409A2 (en) * 1989-10-06 1991-04-10 International Business Machines Corporation Transaction system security method and apparatus
EP0423035A1 (fr) * 1989-10-13 1991-04-17 Gemplus Card International Système de paiement ou de transfert d'informations par carte à mémoire électronique porte-monnaie
FR2667192A1 (fr) * 1990-09-20 1992-03-27 Gemplus Card Int Procede de comptage en memoire eeprom et son utilisation pour la realisation d'un compteur securise.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821485A3 (en) * 1996-06-28 1998-03-18 Oki Electric Industry Company, Limited Call-unit count device
US6003768A (en) * 1996-06-28 1999-12-21 Oki Electric Industry Co., Ltd. Call-unit count device
WO2000010251A1 (en) * 1998-08-13 2000-02-24 Microchip Technology Incorporated A binary counter and method for counting to extend lifetime of storage cells
US6473484B1 (en) 1998-08-13 2002-10-29 Microchip Technology Incorporated Binary counter and method for counting to extend lifetime of storage cells

Also Published As

Publication number Publication date
FR2707027B1 (enExample) 1995-08-04

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