DISC MEDIA TESTING CONTROL SYSTEM
First Claim
1. An assembly comprising:
- a hard disc media tester to test a hard disc for a defect using a component; and
a control system to control the hard disc media tester for testing and to receive test data from the hard disc media tester by controlled relative positioning and movement of said component with respect to said hard disc, wherein the control unit comprises;
a plurality of control components to control the hard disc media tester; and
a plurality of control buses to facilitate communication of control messages among the plurality of control components, wherein the control buses conform to a single bus format.
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Accused Products
Abstract
Techniques are described in which a hard disc media tester uses busses conforming to a single bus format to connect control components within a control system of the hard disc media tester. A hard disc media tester may include several control components such as a testing control module, a motion interface, a defect analyzer, a write controller, a motion controller, head loaders, and so on. Busses conforming to a single bus format, such as the Universal Serial Bus (USB) or FireWire formats, may facilitate the communication of control messages among each of these control components. Furthermore, the hard disc media tester may include one or more bus hubs to allow many components to be controlled through a single cable.
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Citations
20 Claims
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1. An assembly comprising:
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a hard disc media tester to test a hard disc for a defect using a component; and a control system to control the hard disc media tester for testing and to receive test data from the hard disc media tester by controlled relative positioning and movement of said component with respect to said hard disc, wherein the control unit comprises; a plurality of control components to control the hard disc media tester; and a plurality of control buses to facilitate communication of control messages among the plurality of control components, wherein the control buses conform to a single bus format. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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placing a disc on a spindle in a hard disc media tester; sending control messages to control components in a control system of the hard disc media tester to controllably position a component attached to the platform at a radius of the disc; and accessing the disc with the component, wherein the control messages are sent via control busses that conform to a single bus format; wherein the component is selected from a group consisting of;
a burnish head, a glide head, a read head, and a write head. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification