Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Synchronizing moving-head moving-record recorders
Patent
1997-11-12
2000-05-30
Psitos, Aristotelis M
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Synchronizing moving-head moving-record recorders
360 8, 360 7304, 360 7308, 386111, 386112, 386109, G11B 2104
Patent
active
060697636
ABSTRACT:
A data recording device in which the data recording can be carried out at an optional speed without any loss of data using a buffer with less amount of memory. There are provided a memory buffer for storing input data; FIFO memory for dividing the data in the memory buffer into data amount corresponding to one scanning of the rotary head and storing it; data compressing or extending circuits for compressing or extending data in the FIFO memory and transferring it to the rotary head in response to a running speed of the tape; rotary head slant control circuits for controlling a slant amount of the rotary head in such a way that it may form a slant track having the same inclination as that of the slant track formed at a standard speed in response to the running speed of the tape running speed; data read-out phase control circuits for controlling a data read-out phase in the FIFO memory in response to the tape running speed; and a rotary head displacement control circuits for controlling an amount of offset of displacement of the rotary head in response to the recording phase.
REFERENCES:
patent: 4656529 (1987-04-01), Sakamoto
patent: 5349479 (1994-09-01), Arimura et al.
patent: 5892633 (1999-04-01), Ayres et al.
Davidson Dan I.
Maioli Jay H.
Psitos Aristotelis M
Sony Corporation
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