Confidential transmission of written documents - using data at edges or end of sheet to enable decoding by recipient

摘要

The received document has a section of uncoded information (15) at the edge of each sheet (10) which enables the recipient to decode the remainder of the data using a pre-determined code. Preferably, decode information (17) is supplied along the side edges (16) of the sheets (10). USE - Coding of confidential transmitted written information with telex, teletex or fax machines.