Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1985-03-26
1986-08-26
Faber, Alan
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369111, 360 722, G11B 2108
Patent
active
046086765
ABSTRACT:
A method of moving a pick-up device of an optical reproducing apparatus to a position corresponding to a desired address of a record disk, the record disk having an information signal and an address signal recorded in an information area thereon, comprising the steps of producing a desired address signal corresponding to the desired address; partitioning the information area into radially partitioned information sections; moving the pick-up device to a position between two adjacent radially partitioned information sections at a speed faster than normal reproducing speed; reproducing the address signal at the last position of the pick-up device; comparing the reproduced address signal at the last position with the desired address signal; further moving the pick-up device in a direction and an amount determined by the comparing step to a position between two adjacent radially partitioned information sections and within one of the radially partitioned information sections between which the pick-up device was last positioned at a speed faster than the normal reproducing speed; and repeating the steps of reproducing, comparing and further moving until the pick-up device is moved to the position corresponding to the desired address. Apparatus for performing the above method is also provided.
REFERENCES:
patent: 4106058 (1978-08-01), Pomeas
patent: 4138663 (1979-02-01), Lehureau et al.
patent: 4223349 (1980-09-01), Dakin
patent: 4228326 (1980-10-01), Dakin
patent: 4321635 (1982-03-01), Tsuyuguchi
patent: 4338683 (1982-07-01), Furukawa
patent: 4375091 (1983-02-01), Dakin
Mathematical Snapshots, .COPYRGT.1969 by Steinhous, p. 57.
Haneda Yoshiaki
Yoshida Tadao
Eslinger Lewis H.
Faber Alan
Sinderbrand Alvin
Sony Corporation
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