Recording/reproduction apparatus with error detection capability

Details Recording/reproduction apparatus with error detection capability Recording/reproduction apparatus with error detection capability

1991-10-18

1994-08-16

Beausoliel, Jr., Robert W.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

371 572, G11B 509, G06F 1100

Patent

active

053392051

ABSTRACT:
A magnetic recording/reproduction device is disclosed that records data while forming serially a plurality of recording tracks on a magnetic tape. Each of the plurality of recording tracks have a plurality of data blocks recorded of the same bit length. Each of these plurality of data blocks includes a track data indicating the number of the track to be recorded and a synchronizing data indicating a synchronizing signal. The magnetic recording/reproduction device includes circuits for extracting the synchronizing data and the track data from each of the data blocks reproduced immediately after recording, a circuit for counting the number of synchronizing data extracted from the read out data blocks, a circuit for detecting a time period interval of synchronizing data for each recording track, a circuit for extracting track data from the read out data blocks, and a circuit for comparing the extracted track data with an expected data for each recording track. A circuit for making determination whether each data block is correctly recorded onto a corresponding recording track is implemented to make determination of data being correctly recorded only when the outputs of the circuit for comparison, the circuit for detecting the time interval, and the circuit for counting satisfy a certain condition.

REFERENCES:
patent: 4157573 (1979-06-01), Aghazadeh et al.
patent: 4637023 (1987-01-01), Lounsbury et al.
patent: 4876616 (1989-10-01), Katsumata et al.
patent: 4899232 (1990-02-01), Odaka et al.
patent: 5012459 (1991-04-01), Odaka et al.
patent: 5134529 (1992-07-01), Inazawa et al.

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