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Browse Prior Art Database

Record Converter

IP.com Disclosure Number: IPCOM000098502D
Original Publication Date: 1960-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 69K

Publishing Venue

IBM

Related People

Taylor, RL: AUTHOR

Abstract

A system consisting of a punched paper tape reader, a translator and a magnetic tape writer includes devices for controlling the flow of converted data in an orderly fashion during periods of acceleration and deceleration of the tapes as well as during periods of synchronous operation of the two media.

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Record Converter

A system consisting of a punched paper tape reader, a translator and a magnetic tape writer includes devices for controlling the flow of converted data in an orderly fashion during periods of acceleration and deceleration of the tapes as well as during periods of synchronous operation of the two media.

Synchronizing registers 10... 13 buffer four characters between reading station 14 and write register 15 to provide for unequal acceleration deceleration characteristics of paper tape 16 and magnetic tape 17.

Successive paper tape characters pass through decoder 18 and encoder 19 to particular synchronizing registers according to a beginning of record (BOR) format by a BOR commutator 20 under control of BOR counter 21 and status circuits 22. The BOR character and succeeding characters are stored for four cycles in a synchronizing register before being discharged to register 15 for writing on magnetic tape. The BOR counter counts characters as they are placed in the synchronizing registers to provide status circuits 22 with knowledge that the synchronizing registers are all occupied before starting to write on magnetic tape.

The end of record (EOR) is recognized by block 24, whereupon under control of EOR routine timer 25 and EOR commutator 26 the synchronizing registers discharge their contents to magnetic tape.

Since paper tape does not stop instantaneously, BOR of the next record may appear during the EOR routine. Priority block 27 keeps order as...