DK0727898T3 - - Google Patents

Info

Publication number
DK0727898T3
DK0727898T3 DK95108824.4T DK95108824T DK0727898T3 DK 0727898 T3 DK0727898 T3 DK 0727898T3 DK 95108824 T DK95108824 T DK 95108824T DK 0727898 T3 DK0727898 T3 DK 0727898T3
Authority
DK
Denmark
Application number
DK95108824.4T
Other languages
Danish (da)
Inventor
Thomas Seitz
Urs Falk
Original Assignee
Landis & Gyr Tech Innovat
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 Landis & Gyr Tech Innovat filed Critical Landis & Gyr Tech Innovat
Application granted granted Critical
Publication of DK0727898T3 publication Critical patent/DK0727898T3/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Near-Field Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
DK95108824.4T 1995-02-10 1995-06-08 DK0727898T3 (tr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH39195 1995-02-10

Publications (1)

Publication Number Publication Date
DK0727898T3 true DK0727898T3 (tr) 1997-03-17

Family

ID=4185948

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95108824.4T DK0727898T3 (tr) 1995-02-10 1995-06-08

Country Status (10)

Country Link
EP (1) EP0727898B1 (tr)
AR (1) AR000900A1 (tr)
AT (1) ATE143550T1 (tr)
DE (1) DE59500025D1 (tr)
DK (1) DK0727898T3 (tr)
ES (1) ES2093534T3 (tr)
GR (1) GR3021304T3 (tr)
LT (1) LT4356B (tr)
TW (1) TW291630B (tr)
YU (1) YU8596A (tr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI9620032A (sl) * 1995-02-10 1998-02-28 Electrowatt Technology Innovation Ag Telefonski aparat
ES2150394B1 (es) * 1999-04-13 2001-06-01 Telefonica Sa Dispositivo de control de fraude aplicable en telefonos publicos mod lares.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434529A1 (fr) * 1978-08-21 1980-03-21 App Automatiques Ste Fse Dispositif anti-fraude pour poste telephonique
US4759054A (en) * 1986-12-22 1988-07-19 Protel, Inc. Toll telephone system and method for maintaining or initiating loop current after resuming on-hook condition
EP0310371A2 (en) 1987-09-29 1989-04-05 John Leo Therrien Method and apparatus for preventing telephone fraud
US5086459A (en) * 1990-02-23 1992-02-04 Keptel, Inc. Timing circuit and a secure telephone jack utilizing this circuit
US5150403A (en) 1991-05-28 1992-09-22 Jordan H Weaver Coin fraud prevention system for coin telephones

Also Published As

Publication number Publication date
ES2093534T3 (es) 1996-12-16
EP0727898B1 (de) 1996-09-25
GR3021304T3 (en) 1997-01-31
EP0727898A1 (de) 1996-08-21
AR000900A1 (es) 1997-08-06
DE59500025D1 (de) 1996-10-31
TW291630B (tr) 1996-11-21
YU8596A (sh) 1999-06-15
LT97146A (lt) 1998-03-25
LT4356B (lt) 1998-06-25
ATE143550T1 (de) 1996-10-15

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment