FI973261A - Puhelinasema - Google Patents

Puhelinasema Download PDF

Info

Publication number
FI973261A
FI973261A FI973261A FI973261A FI973261A FI 973261 A FI973261 A FI 973261A FI 973261 A FI973261 A FI 973261A FI 973261 A FI973261 A FI 973261A FI 973261 A FI973261 A FI 973261A
Authority
FI
Finland
Prior art keywords
phone drive
phone
drive
Prior art date
Application number
FI973261A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI973261A0 (fi
Inventor
Thomas Seitz
Urs Falk
Original Assignee
Electrowatt Tech Innovat 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
Priority claimed from EP95108824A external-priority patent/EP0727898B1/de
Application filed by Electrowatt Tech Innovat Corp filed Critical Electrowatt Tech Innovat Corp
Publication of FI973261A0 publication Critical patent/FI973261A0/fi
Publication of FI973261A publication Critical patent/FI973261A/fi

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
    • 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
    • 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
    • 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)
  • Burglar Alarm Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Measuring Magnetic Variables (AREA)
  • Electromagnets (AREA)
  • Silicon Polymers (AREA)
  • Telephone Set Structure (AREA)
FI973261A 1995-02-10 1997-08-07 Puhelinasema FI973261A (fi)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH39195 1995-02-10
EP95108824A EP0727898B1 (de) 1995-02-10 1995-06-08 Telefonstation
PCT/CH1996/000017 WO1996025000A1 (de) 1995-02-10 1996-01-15 Telefonstation

Publications (2)

Publication Number Publication Date
FI973261A0 FI973261A0 (fi) 1997-08-07
FI973261A true FI973261A (fi) 1997-08-07

Family

ID=25684432

Family Applications (1)

Application Number Title Priority Date Filing Date
FI973261A FI973261A (fi) 1995-02-10 1997-08-07 Puhelinasema

Country Status (13)

Country Link
US (1) US5864618A (xx)
CN (1) CN1173956A (xx)
AU (1) AU699535B2 (xx)
CZ (1) CZ230097A3 (xx)
EE (1) EE9700167A (xx)
FI (1) FI973261A (xx)
HR (1) HRP960068B1 (xx)
LV (1) LV11932B (xx)
NO (1) NO973565L (xx)
PL (1) PL321782A1 (xx)
SI (1) SI9620032A (xx)
SK (1) SK102197A3 (xx)
WO (1) WO1996025000A1 (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104795A (en) * 1998-12-04 2000-08-15 Lucent Technologies Inc. Method and apparatus for detecting and announcing pin fraud on coin telephones that use battery reversal pulses to meter charges

Family Cites Families (8)

* 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
US4885767A (en) * 1987-09-29 1989-12-05 Therrien John L Blue-box fraud prevention
US5086459A (en) * 1990-02-23 1992-02-04 Keptel, Inc. Timing circuit and a secure telephone jack utilizing this circuit
US5022073A (en) * 1990-04-17 1991-06-04 Jordan H Weaver Pin fraud and shock prevention system
US5150403A (en) * 1991-05-28 1992-09-22 Jordan H Weaver Coin fraud prevention system for coin telephones
DE4120079C2 (de) * 1991-06-18 1994-06-16 Siemens Ag Verfahren für eine Fernsprechstation mit MFV-Wahl und Rufnummernauswerter
EP0727898B1 (de) * 1995-02-10 1996-09-25 Landis & Gyr Technology Innovation AG Telefonstation

Also Published As

Publication number Publication date
WO1996025000A1 (de) 1996-08-15
FI973261A0 (fi) 1997-08-07
CN1173956A (zh) 1998-02-18
US5864618A (en) 1999-01-26
EE9700167A (et) 1998-02-16
NO973565L (no) 1997-10-09
NO973565D0 (no) 1997-08-01
SI9620032A (sl) 1998-02-28
CZ230097A3 (cs) 1998-03-18
AU4382696A (en) 1996-08-27
LV11932A (lv) 1997-12-20
HRP960068A2 (en) 1997-08-31
PL321782A1 (en) 1997-12-22
HRP960068B1 (en) 1998-12-31
SK102197A3 (en) 1998-01-14
AU699535B2 (en) 1998-12-03
LV11932B (lv) 1998-06-20

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