| DPHI ACQUISITIONS, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110063958 | Servo Processor Receiving Photodetector Signals - A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals. | 03-17-2011 |
| 20100005319 | HARDWARE PROTECTION FOR ENCRYPTED STRINGS AND PROTECTION OF SECURITY PARAMETERS - In one embodiment, a disk drive is provided that is adapted for security authentication. The disk drive includes: a non-volatile memory storing object code; a processor for retrieving the stored object code; a decryption engine for decrypting a retrieved shared secret from the object code; and a first memory for storing the decrypted retrieved shared secret; wherein the processor is configured to overwrite the written decrypted retrieved shared secret after it has been used in an authentication procedure. | 01-07-2010 |
