Data card and data strip measuring means

Details Data card and data strip measuring means Data card and data strip measuring means

1985-02-01

1986-11-04

Yusko, Donald J.

Registers

Systems controlled by data bearing records

Credit or identification card systems

34082534, 235487, G06K 1900

Patent

active

046211888

ABSTRACT:
In a data transmission system comprising at least one data bank, data may be accessed through a subscriber station. First data should only be accessed by a first authorized range of subscribers, while other data may only be accessed by a second authorized range of subscribers. To this end, the subscriber station includes a reading device enabling data access only if data read from an authorization card to be supplied fulfill predetermined test conditions.

REFERENCES:
patent: 3956615 (1976-05-01), Anderson et al.
patent: 4013894 (1977-03-01), Foote et al.
patent: 4025760 (1977-05-01), Trenkamp
patent: 4186871 (1980-02-01), Anderson et al.
patent: 4423415 (1983-12-01), Goldman

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