Telephonic communications – With check operated control – Fraud or interference prevention
Patent
1997-09-30
1999-11-02
Le, Huyen
Telephonic communications
With check operated control
Fraud or interference prevention
379146, H04M 1700
Patent
active
059784601
ABSTRACT:
A package advantageously to be mounted within the housing of a coin telephone permits the telephone set to exhibit a jack to which a personal computer may be connected without danger of the jack being used for fraudulent purposes by normally maintaining the jack isolated from the central office conductors. A local battery powers a microprocessor which senses when a modem is connected to the jack. The microprocessor controls the connection to the central office conductors which then supply power for the further continuous monitoring of the conductors to determine whether the connection is being used legitimately or whether tones are applied at the jack to simulate the deposit of coins. In addition, the jack is disconnected from the central office conductors during the time that the initial rate test is being performed by the central office.
REFERENCES:
patent: 3627950 (1971-12-01), Sand
patent: 4039768 (1977-08-01), O'Mailey
patent: 4076962 (1978-02-01), Streisand
patent: 4124774 (1978-11-01), Zarouni
patent: 4674114 (1987-06-01), Crouch et al.
patent: 4759054 (1988-07-01), Mellon
patent: 4794642 (1988-12-01), Arbabzadah et al.
patent: 4862494 (1989-08-01), Matheny
patent: 4896348 (1990-01-01), Grantland et al.
patent: 4926468 (1990-05-01), Smith et al.
patent: 4989239 (1991-01-01), McGarry
patent: 5007077 (1991-04-01), Fields et al.
patent: 5105460 (1992-04-01), Williams
patent: 5150403 (1992-09-01), Jordan
patent: 5168518 (1992-12-01), Criscenzo et al.
patent: 5757896 (1998-05-01), Akhteruzzaman et al.
patent: 5907606 (1999-05-01), Ingalsbe et al.
Butts Michael Lee
Macauley Daniel Warren
Barnie Rexford N.
Le Huyen
Lucent Technologies - Inc.
LandOfFree
Coin telephone data port protection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coin telephone data port protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coin telephone data port protection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2146204