LT97146A - TELEPHONE STATION - Google Patents
TELEPHONE STATIONInfo
- Publication number
- LT97146A LT97146A LT97-146A LT97146A LT97146A LT 97146 A LT97146 A LT 97146A LT 97146 A LT97146 A LT 97146A LT 97146 A LT97146 A LT 97146A
- Authority
- LT
- Lithuania
- Prior art keywords
- telephone station
- telephone
- station
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH39195 | 1995-02-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
LT97146A true LT97146A (en) | 1998-03-25 |
LT4356B LT4356B (en) | 1998-06-25 |
Family
ID=4185948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LT97-146A LT4356B (en) | 1995-02-10 | 1997-09-09 | Telephone set |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0727898B1 (en) |
AR (1) | AR000900A1 (en) |
AT (1) | ATE143550T1 (en) |
DE (1) | DE59500025D1 (en) |
DK (1) | DK0727898T3 (en) |
ES (1) | ES2093534T3 (en) |
GR (1) | GR3021304T3 (en) |
LT (1) | LT4356B (en) |
TW (1) | TW291630B (en) |
YU (1) | YU8596A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU699535B2 (en) * | 1995-02-10 | 1998-12-03 | Electrowatt Technology Innovation Ag | Telephone station |
ES2150394B1 (en) * | 1999-04-13 | 2001-06-01 | Telefonica Sa | APPLICABLE FRAUD CONTROL DEVICE ON MOD LARES PUBLIC TELEPHONES. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2434529A1 (en) * | 1978-08-21 | 1980-03-21 | App Automatiques Ste Fse | Electronic circuit connected in telephone line - prevents fraudulent use of line by monitoring line current and shorting line in preset circumstances |
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 |
US5150403A (en) | 1991-05-28 | 1992-09-22 | Jordan H Weaver | Coin fraud prevention system for coin telephones |
-
1995
- 1995-06-08 DE DE59500025T patent/DE59500025D1/en not_active Expired - Fee Related
- 1995-06-08 ES ES95108824T patent/ES2093534T3/en not_active Expired - Lifetime
- 1995-06-08 AT AT95108824T patent/ATE143550T1/en not_active IP Right Cessation
- 1995-06-08 EP EP95108824A patent/EP0727898B1/en not_active Expired - Lifetime
- 1995-06-08 DK DK95108824.4T patent/DK0727898T3/da not_active Application Discontinuation
-
1996
- 1996-01-19 TW TW085100625A patent/TW291630B/zh active
- 1996-02-09 AR ARP960101333A patent/AR000900A1/en unknown
- 1996-02-09 YU YU8596A patent/YU8596A/en unknown
- 1996-10-09 GR GR960402676T patent/GR3021304T3/en unknown
-
1997
- 1997-09-09 LT LT97-146A patent/LT4356B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE59500025D1 (en) | 1996-10-31 |
AR000900A1 (en) | 1997-08-06 |
TW291630B (en) | 1996-11-21 |
YU8596A (en) | 1999-06-15 |
EP0727898A1 (en) | 1996-08-21 |
GR3021304T3 (en) | 1997-01-31 |
LT4356B (en) | 1998-06-25 |
EP0727898B1 (en) | 1996-09-25 |
ATE143550T1 (en) | 1996-10-15 |
ES2093534T3 (en) | 1996-12-16 |
DK0727898T3 (en) | 1997-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM9A | Lapsed patents |
Effective date: 20000115 |