Cartridge refresh and verify

Certify testing apparatus and certify testing method

Channel quality circuit employing a test pattern generator in a

Channel quality circuit in a sampled amplitude read channel

Closed loop write verification in a disc drive

Cluster-based defect detection testing for disk drives

Code error correcting circuit

Control apparatus and method for conveyance control of medium in

Correcting errors in disk drive read back signals by...

Correcting errors in disk drive read back signals by...

Correcting errors in disk drive read back signals by...

Correction of header information in a magnetic disc drive

Credit card embossing and recording system

Customized data recovery procedures selected responsive to readb