Looking and listening fee collection system for pay broadcasting

Details Looking and listening fee collection system for pay broadcasting Looking and listening fee collection system for pay broadcasting

1992-09-30

1994-06-28

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 10, 380 19, 380 20, 380 23, 235380, 235381, 235382, H04N 7167, G06F 708

Patent

active

053254317

ABSTRACT:
A looking and listening fee collection system for satellite broadcasting of this invention is designed to collect looking and listening fees for satellite broadcasting by using balances prestored in an IC card. More specifically, looking and listening fee information and a scrambled broadcast signal of a pay broadcast are received. The received scrambled broadcast signal is descrambled. The broadcast corresponding to the descrambled broadcast signal is televised on a TV receiver. An IC card reader/writer receives the IC card in which a monetary value is stored, and reads/updates the monetary value stored in the IC card. When a pay broadcast is televised by the TV receiver, the IC card reader/writer is used to update the monetary value stored in the IC card to a monetary value obtained by subtracting the looking and listening fee for the pay broadcast from the monetary value stored in the IC card. With this system, looking and listening fees for satellite broadcasting can be collected in units of programs or on a time basis.

REFERENCES:
patent: 4809325 (1989-02-01), Hayashi et al.
patent: 4833710 (1989-05-01), Hirashima
patent: 4973828 (1990-11-01), Naruse et al.
patent: 4975951 (1990-12-01), Bennett

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