Method for protecting against the re-transfer of uniquely record

Details Method for protecting against the re-transfer of uniquely record Method for protecting against the re-transfer of uniquely record

1981-10-05

1985-10-08

Rubinson, Gene Z.

Registers

Coded record sensors

Particular sensor structure

235493, 235382, 34082534, G06K 1906

Patent

active

045462429

ABSTRACT:
A method of safeguarding against the re-transfer of uniquely recorded information on a data carrier (1) which includes the recording of the information data and in addition thereto simultaneously recording of additional information on the data carrier (1) which reflects co-ordination characteristics relative to the data carrier. In order to carry out the method an apparatus is provided for recording and/or reading a re-transfer protected information on a data carrier (1) with recording and/or reading device (4). The apparatus comprises a device (13) for detecting measurable properties (3) which are present at singular points of the data carrier (1) and for producing additional information characterizing such properties.

REFERENCES:
patent: 3636318 (1972-01-01), Lindstrom et al.
patent: 4013894 (1977-03-01), Foote et al.
patent: 4034211 (1977-07-01), Horst et al.
patent: 4041279 (1977-08-01), Foote
patent: 4213038 (1980-07-01), Silverman et al.
patent: 4213041 (1980-07-01), Smith
patent: 4303852 (1981-12-01), Silverman et al.

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