Event data recording apparatus with digitally encoded time and d

Details Event data recording apparatus with digitally encoded time and d Event data recording apparatus with digitally encoded time and d

1977-05-11

1978-10-24

Lucas, Jay P.

Dynamic magnetic information storage or retrieval

Recording combined with metering or sensing

346 20, 346 37, G11B 500

Patent

active

041224981

ABSTRACT:
A data recording apparatus including a data recording circuit for recording event data provided by a data source on a first track of a magnetic tape and a time recording circuit which effects the recording of time reference data for the event data on a second track of the tape, the time recording circuit including a digital clock which provides encoded data representing month, day, hours and minutes for recording on the tape and an identification data source which provides encoded data representing an identification number for the data source for recording on the tape, the time and identification data being recorded on the tape in a bi-phase format.

REFERENCES:
patent: 2660507 (1953-11-01), Cordell
patent: 3376551 (1968-04-01), Armbruster
patent: 3591731 (1971-07-01), Stancil
patent: 3657488 (1972-04-01), Pountney
patent: 3869707 (1975-03-01), Cupp
patent: 3913129 (1975-10-01), Snyder

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