Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1985-11-05
1987-06-30
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 103, 360 70, G11B 15467, G11B 552
Patent
active
046775030
ABSTRACT:
An information signal reproducing apparatus for reproducing information signals on a record bearing medium having said information signals recorded thereon in many recording tracks formed on the record bearing medium with intervals of a predetermined pitch. The information signal reproducing apparatus is so arranged that in a first moving mode, the record bearing medium is moved at a first moving speed wherein a reproduction head therein traces the record bearing medium in parallel to the longitudinal direction of the recording tracks, and in a second moving mode, the record bearing medium is moved with a different moving action from that in the first moving mode, and as the record bearing medium is moved based on the first moving mode or the second moving mode for tracing, by the reproduction head, the recording tracks formed on the record bearing medium and reproducing the information signals recorded in the recording tracks, a tracking error between a correct tracing position to the recording tracks and an actual tracing position of the reproduction head, is detected by using the information signals reproduced by the reproduction head, for generating tracking error signals corresponding to an amount of the tracking error and integrating such tracking error signals by an integrating device, thus effecting a control of the moving action of the record bearing medium by using the integrated tracking error signals so that a satisfactory reproduction of the information signals can be made.
REFERENCES:
patent: 4361857 (1982-11-01), Sakamoto
patent: 4420778 (1983-12-01), Sakamoto
patent: 4489352 (1984-12-01), Kobayashi et al.
patent: 4550345 (1985-10-01), Terada et al.
patent: 4558382 (1985-12-01), Edakubo et al.
patent: 4568986 (1986-02-01), Furuhata et al.
Nagasawa Kenichi
Takayama Nobutoshi
Canon Kabushiki Kaisha
Cardillo Raymond F.
Garland Steven R.
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