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US 2004/0165488 A1Published application
Disk device
AssigneeRohm Co., Ltd.
InventorsSeiichi Yamamoto, Kenichi Niiyama, Nobuo Nakamachi, Yoshiki Tanaka, Shinsuke Takagimoto
Life of this patent
Estimating the term…
Abstract
A driver IC 1 has a bias terminal 20a via which a bias voltage fed from a microcomputer 2 to drive and control a loading motor 4 is fed in and a bias terminal 20b via which a bias voltage fed from a DSP 3 to drive and control a focus coil 5, a tracking coil 6, a sled motor 7, and a spindle motor 8 is fed in.
Claims11
A disk apparatus comprising:
- a loading mechanism for transporting a disk having data stored thereon to a predetermined position;
- a data position specifying mechanism for specifying a data position in the data stored on the disk;
- a signal processor for processing a signal to control the data position specifying mechanism;
- a main controller for controlling operation of the apparatus as a whole;
- and
- a driver comprising:
- a loading controller for driving and controlling the loading mechanism;
- a data position specifying controller for driving and controlling the data position specifying mechanism;
- a first bias input terminal via which a bias voltage for operating the loading controller is fed in;
- a first signal input terminal via which a control signal fed from the main controller to the loading controller is fed in;
- a second bias input terminal via which a bias voltage for operating the data position specifying controller is fed in;
- and
- a second signal input terminal via which a control signal fed from the signal processor to the data position specifying controller is fed in,
- wherein, when a loading operation is performed by operating the loading mechanism, whereas the main controller feeds the bias voltage to the first bias input terminal, operation of the signal processor is halted.
11 more elements
A disk apparatus comprising:
- a loading mechanism for transporting a disk having data stored thereon to a predetermined position;
- a data position specifying mechanism for specifying a data position in the data stored on the disk;
- a motor shared between the loading mechanism and the data position specifying mechanism so as to produce a driving force for driving the loading mechanism and the data position specifying mechanism;
- a signal processor for processing a signal to control the data position specifying mechanism;
- a main controller for controlling operation of the apparatus as a whole;
- and
- a driver comprising:
- a motor controller for driving and controlling the motor;
- a data position specifying controller for driving and controlling a driving mechanism that is included in the data position specifying mechanism and that is driven by a driving force other than the driving force produced by the motor;
- a first signal input terminal via which a first control signal fed from the main controller to control the motor when the loading mechanism operates is fed in;
- a second signal input terminal via which a second control signal fed from the signal processor to control the motor when the data position specifying mechanism operates is fed in;
- a third signal input terminal via which a third control signal fed from the signal processor to the data position specifying controller is fed in;
- a control signal selector for selecting one of the first control signal fed in via the first signal input terminal and the second control signal fed in via the second signal input terminal and feeding the thus selected signal to the motor controller;
- and
- a selection control terminal via which a selection control signal is fed in by which the control signal selector is so controlled as to select the first control signal when the loading mechanism operates and the second control signal when the data position specifying mechanism operates.
12 more elements
Dependencies are inferred from the claim text.