Servo-Controlled Floppy Disk SYSTEM for Optical and Magnetic Recording
Original Publication Date: 1983-Oct-01
Included in the Prior Art Database: 2005-Feb-07
The present publication describes a floppy disk system wherein the disk is moved rather than the Read/Write (R/W) head. This configuration allows multiple R/W heads per actuator, or the reading of an optical/ capacitive track in a magnetic disk. In a conventional twosided recording scheme, two heads on a frame, as shown in Fig. 1, are required. This conventional arrangement has the following design and implementation problems: (1) No space for multi-sensors and multi-stablizers. (2) Two-sided recording will have a vibration and access time problem. (3) A large sized opening slot will have a disk fluttering problem. (4) Difficult to install multi-recording heads. (5) Difficult to install actuators or air jets for disk-head spacing or disk tracking control. (6) Requires high precision tracking patterns.