Patent Assignment
Reel/Frame 027362/0458
Change of Name
Recorded: 2011-12-12
Received: 2011-12-12
Pages: 5
Assignor
DPHI ACQUISITIONS, INC.
Executed: 2003-05-08
Assignee
DPHI, INC.
2101 KEN PRATT BLVD., SUITE 200, LONGMONT, CO, 80501, UNITED STATES
Covered Properties
(61)
Servo Control Using Digital Signal Processing for Optical Disk Drive
Application:
12/952,135 →
Optical Drive Servo with a Servo Processor Receiving Photodetector Signals
Application:
11/969,190 →
Tracking and Focus Servo System with Automatic Media Type Detector
Application:
09/950,361 →
Digital Servo System with Loop Gain Calibration
Application:
09/950,519 →
Digital Focus and Tracking Servo System
Application:
09/950,516 →
Pmad/Psa Digital Feedback System
Application:
09/951,325 →
System and Method for Performing a Spin Motor Startup Operation
Application:
09/951,475 →
Digital Tracking Servo System with Multi-Track Seek with an Acceleration Clamp
Application:
09/950,378 →
Tracking and Focus Servo System with Defect Detection
Application:
09/950,379 →
Tracking and Focus Servo System with Head Load
Application:
09/950,540 →
System and Method for Recovering from Performance Errors in an Optical Disc Drive
Application:
09/951,337 →
Digital Tracking Servo System with Multi-Track Seek with Track Zero Crossing Detection
Application:
09/950,513 →
Calibration of Tracking Error Signal Offset in a Tracking Servo System
Application:
09/950,377 →
Digital Focus Servo System with a Sliding Notch Filter
Application:
09/950,514 →
Tracking and Focus Servo System with Direction Sensor
Application:
09/950,515 →
Digital Servo System with Inverse Non-Linearity Compensation
Application:
09/950,397 →
Digital Servo System with Second Order Compensator
Application:
09/950,914 →
System and Method for Controlling a Spin Motor
Application:
09/951,869 →
System and Method for Handling Commands in an Optical Disc Drive
Application:
09/951,931 →
Calibration of a Focus Sum Threshold in a Focus Servo System
Application:
09/950,367 →
Calibration of Tracking Error Signal Gain in a Tracking Servo System
Application:
09/950,520 →
System and Method for Controlling Tracking and Seeking in an Optical Disc Drive
Application:
09/951,331 →
System and Method for Controlling Interrupts in a Control System for an Optical Disc Drive
Application:
09/951,947 →
Tracking and Focus Servo System with Anti-Skate Algorithm
Application:
09/950,432 →
Digital Servo System with Error Signal Integrity Testing
Application:
09/950,413 →
Spin Motor Control in an Optical Drive
Application:
09/951,930 →
Kp and Ki Lookup System and Method
Application:
09/951,330 →
Calibration of a Focus Error Signal Gain in a Focus Servo System
Application:
09/950,548 →
Close Focus Algorithm in a Digital Focus Servo System
Application:
09/950,329 →
Digital Servo System with Calibrated Notch Filters
Application:
09/950,372 →
System and Method for Moving Optical Pick Up from Current Position to Target Position with Smooth Control
Application:
09/950,408 →
System and Method for Controlling Focus in an Optical Disc Drive
Application:
09/951,940 →
Digital Tracking Servo System with Tracking Skate Detection
Application:
09/950,410 →
Tracking and Focus Servo System with a Media Type Boundary Crossing Detector
Application:
09/950,412 →
Digital Servo System with Feed-Forward Control Loops
Application:
09/950,441 →
System and method to adjust the level of re-calibration effort based on disc drive performance
Application:
09/951,850 →
A Tracking Servo System Including a Multi-Track Seek Algorithm with a Track Zero Crossing Period Integrity Test.
Application:
09/950,331 →
Tracking and Focus Digital Servo System with Write Abort
Application:
09/950,411 →
Optical Disk Drive with a Digital Focus and Tracking Servo System
Application:
09/950,365 →
Digital Servo System with Biased Feed-Forward
Application:
09/950,395 →
Digital Tracking Servo System with Off-Format Detection
Application:
09/950,393 →
Flexible Servicing of Servo Algorithms Using a Digital Signal Processor
Application:
09/950,373 →
Close Tracking Algorithm in a Digital Tracking Servo System
Application:
09/950,444 →
Calibration Initiation Methods for a Tracking and Focus Servo System
Application:
09/950,541 →
Digital Focus and Tracking Servo System with Multi-Zone Calibration
Application:
09/950,398 →
Detector Input Dark Current Offset Calibration in an Optical Disk Drive Digital Servo
Application:
09/950,512 →
Calibration of Focus Error Signal Offset in a Focus Servo System
Application:
09/950,392 →
Digital Tracking Servo System with a Multi-Track Seeking and Accelerated Servo Function for Regaining a Closed Tracking Loop
Application:
09/950,414 →
Calibration Storage Methods for a Digital Focus and Tracking Servo System with Calibration
Application:
09/950,360 →
System and Method for Handling Events in an Optical Disc Drive
Application:
09/951,329 →
Tracking and Focus Servo System with Error Signal Inverse Non-Linearity Calibration
Application:
09/950,409 →
Bemf Timing System
Application:
09/951,328 →
Digital Focus and Tracking Servo System with One-Track Jump
Application:
09/950,376 →
Focus Detection in a Digital Focus Servo System
Application:
09/950,394 →
Clv System and Method Using Psa Lookup
Application:
09/951,108 →
Detector Input Stray Light Offset Calibration in an Optical Disk Drive
Application:
09/950,415 →
System and Method for Detecting and Recovering from an Off-Format State in an Optical Disc Drive
Application:
09/951,332 →
Time Critical and Non-Time Critical Tasks Control System for an Optical Disk Using First and Second Processors
Application:
09/951,339 →
System and Method for Controlling Time Critical Operations in a Control System for an Optical Disc Drive
Application:
09/951,469 →
Digital Tracking Servo System with Multi-Track Seek
Application:
09/950,425 →
Digital Tracking and Focus Servo System with Tes to Fes Crosstalk Calibration
Application:
09/950,396 →