Tracking servo system adapted to operate with variable track pit

Details Tracking servo system adapted to operate with variable track pit Tracking servo system adapted to operate with variable track pit

1989-04-06

1991-11-12

Envall, Jr., Roy N.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 30, 358907, G11B 795

Patent

active

050653830

ABSTRACT:
In a tracking servo system for use in a disc player having a pickup, for playing an information recording disc having a recording track, the peak value of the tracking error signal obtained during a track jump operation is detected, and at least one of the pulse width and the pulse height of the deceleration pulse for the jump operation is varied in response to the detected peak value. With this feature, an appropriate control amount for the track jump operation corresponding to the track pitch is obtained even if there is a change in the track pitch.

REFERENCES:
patent: 4598394 (1986-07-01), Nonaka
patent: 4817073 (1989-03-01), Suzuki

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