G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/08 (2006.01) G11B 7/085 (2006.01) G11B 21/10 (2006.01) G11B 21/08 (2006.01)
Patent
CA 2253990
A disk recording or playback device has mounted on a chassis a pickup for detecting addresses on a disk, and a sensor switch SW for detecting the pickup as brought to the inner peripheral side of the disk. The pickup is moved toward a lead-in area of the disk to turn on the switch SW, thereafter reversely moved and caused to overrun for a predetermined period of time from a position where the switch SW is turned off . The pickup reads an address on the disk and is thereafter returned. When the address is outside a target region within the lead-in area, the pickup is repeatedly moved toward the lead-in area again with the overrun time altered. The overrun time is stored which enables the pickup to read an address within the target region upon overrunning.
Riches Mckenzie & Herbert Llp
Sanyo Electric Co. Ltd.
LandOfFree
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