DPHI Acquisitions, Inc.

Patent Applications and Registrations

Patent applications and USPTO patent grants for DPHI Acquisitions, Inc..The latest application filed is for "servo processor receiving photodetector signals".

Company Profile

0.108.3

DPHI Acquisitions, Inc. - Longmont CO
DPHI Acquisitions, Inc. - Boulder CO
DPHI Acquisitions, Inc. -

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Secure access system and method Grant 7,958,377 - Lee , et al. June 7, 2	2011-06-07
Use of mother stamper for optical disk molding Grant 7,914,711 - Medower , et al. March 29, 2	2011-03-29
First surface removable optical disc within a cartridge Grant 7,913,270 - Braitberg , et al. March 22, 2	2011-03-22
Servo Processor Receiving Photodetector Signals App 20110063958 - Kadlec; Ron J.	2011-03-17
Optical drive servo with a servo processor receiving photodetector signals Grant 7,839,729 - Kadlec November 23, 2	2010-11-23
Optical disk drive with micro-SIL Grant 7,808,879 - Bell, Jr. , et al. October 5, 2	2010-10-05
Optical disk drive with hybrid solid immersion objective lens Grant 7,808,880 - Bell, Jr. , et al. October 5, 2	2010-10-05
Digital focus and tracking servo system with multi-zone calibration Grant 7,782,721 - Kadlec , et al. August 24, 2	2010-08-24
System and method for detecting unauthorized copying of encrypted data Grant 7,729,495 - Lee , et al. June 1, 2	2010-06-01
Digital servo system with inverse non-linearity compensation Grant 7,680,004 - Kadlec , et al. March 16, 2	2010-03-16
Small form-factor optical data storage device Grant 7,675,835 - Bell, Jr. , et al. March 9, 2	2010-03-09
Close focus algorithm in a digital focus servo system Grant 7,672,199 - Kadlec , et al. March 2, 2	2010-03-02
Revocation method and apparatus for secure content Grant 7,672,903 - Lee , et al. March 2, 2	2010-03-02
Hardware Protection For Encrypted Strings And Protection Of Security Parameters App 20100005319 - Pohm; David	2010-01-07
Digital tracking servo system with off-format detection Grant 7,593,300 - Kadlec , et al. September 22, 2	2009-09-22
Dual density disc with associated properties Grant 7,554,898 - Blankenbeckler , et al. June 30, 2	2009-06-30
Block-level storage device with content security Grant 7,549,044 - Lee , et al. June 16, 2	2009-06-16
Digital tracking servo system with multi-track seek with an acceleration clamp Grant 7,522,480 - Kadlec April 21, 2	2009-04-21
Digital servo system with calibrated notch filters Grant 7,492,675 - Kadlec , et al. February 17, 2	2009-02-17
Calibration of a focus error signal gain in a focus servo system Grant 7,414,940 - Kadlec , et al. August 19, 2	2008-08-19
Optical data storage media with enhanced contrast Grant 7,368,222 - Medower , et al. May 6, 2	2008-05-06
Tilt focus mechanism for an optical drive Grant 7,337,452 - Freeman , et al. February 26, 2	2008-02-26
Host certification method and system Grant 7,310,821 - Lee , et al. December 18, 2	2007-12-18
Digital focus and tracking servo system with one-track jump Grant 7,260,031 - Kadlec , et al. August 21, 2	2007-08-21
Low profile optical head Grant 7,227,817 - Redmond , et al. June 5, 2	2007-06-05
Calibration storage methods for a digital focus and tracking servo system with calibration Grant 7,196,979 - Kadlec , et al. March 27, 2	2007-03-27
Content distribution method and apparatus Grant 7,191,153 - Braitberg , et al. March 13, 2	2007-03-13
System and method for handling commands in an optical disc drive Grant 7,116,621 - Turner , et al. October 3, 2	2006-10-03
Secure access method and system Grant 7,110,982 - Feldman , et al. September 19, 2	2006-09-19
Tracking and focus digital servo system with write abort Grant 7,095,683 - Kadlec , et al. August 22, 2	2006-08-22
System and method for detecting and recovering from an off-format state in an optical disc drive Grant 7,095,685 - Turner , et al. August 22, 2	2006-08-22
Calibration of focus error signal offset in a focus servo system Grant 7,092,322 - Kadlec , et al. August 15, 2	2006-08-15
System and method for performing a spin motor startup operation Grant 7,079,459 - Watt , et al. July 18, 2	2006-07-18
Beamshaper for optical head Grant 7,079,472 - Redmond , et al. July 18, 2	2006-07-18
CLV system and method using PSA lookup Grant 7,065,018 - Watt , et al. June 20, 2	2006-06-20
System and method for controlling tracking and seeking in an optical disc drive Grant 7,057,983 - Turner , et al. June 6, 2	2006-06-06
System and method for controlling focus in an optical disc drive Grant 7,054,242 - Turner , et al. May 30, 2	2006-05-30
Method and apparatus for emulating read/write file system on a write-once storage disk Grant 7,051,054 - Lee , et al. May 23, 2	2006-05-23
System and method for controlling time critical operations in a control system for an optical disc drive Grant 7,038,988 - Turner , et al. May 2, 2	2006-05-02
Flexible servicing of servo algorithms using a digital signal processor Grant 7,023,766 - Kadlec , et al. April 4, 2	2006-04-04
Calibration initiation methods for a tracking and focus servo system Grant 7,023,776 - Kadlec , et al. April 4, 2	2006-04-04
Digital servo system with biased feed-forward Grant 7,020,054 - Kadlec , et al. March 28, 2	2006-03-28
Inner region identifier for optical disk Grant 7,016,294 - Blankenbeckler , et al. March 21, 2	2006-03-21
Tracking and focus servo system with defect detection Grant 7,016,280 - Kadlec March 21, 2	2006-03-21
Structure and method for storing data on optical disks Grant 6,990,058 - Pleiss , et al. January 24, 2	2006-01-24
Combination mastered and writeable medium and use in electronic internet appliance Grant 6,980,652 - Braitberg , et al. December 27, 2	2005-12-27
System and method to adjust the level of re-calibration effort based on disc drive performance Grant 6,977,873 - Turner , et al. December 20, 2	2005-12-20
Focus detection in a digital focus servo system Grant 6,970,410 - Kadlec , et al. November 29, 2	2005-11-29
Fringing field focus motor and mechanism for optical disk drive Grant 6,970,401 - Raymond , et al. November 29, 2	2005-11-29
Tracking and focus servo system with error signal inverse non-linearity calibration Grant 6,965,547 - Kadlec , et al. November 15, 2	2005-11-15
System and method for controlling interrupts in a control system for an optical disc drive Grant 6,963,524 - Turner , et al. November 8, 2	2005-11-08
Double-sided digital optical disk and method and apparatus for making Grant 6,962,668 - Medower , et al. November 8, 2	2005-11-08
Digital tracking and focus servo system with TES to FES crosstalk calibration Grant 6,958,957 - Kadlec , et al. October 25, 2	2005-10-25
System and method for handling events in an optical disc drive Grant 6,958,963 - Turner , et al. October 25, 2	2005-10-25
Digital servo system with error signal integrity testing Grant 6,956,797 - Kadlec October 18, 2	2005-10-18
Detector input dark current offset calibration in an optical disk drive digital servo Grant 6,950,380 - Watt , et al. September 27, 2	2005-09-27
Digital focus servo system with a sliding notch filter Grant 6,937,543 - Kadlec , et al. August 30, 2	2005-08-30
Tracking and focus servo system with anti-skate algorithm Grant 6,922,380 - Kadlec , et al. July 26, 2	2005-07-26
Micro lens and method and apparatus for fabricating Grant 6,914,724 - Redmond July 5, 2	2005-07-05
Low profile optical head Grant 6,914,868 - Redmond , et al. July 5, 2	2005-07-05
Skip list management for a write-once optical disk Grant 6,912,189 - Propps , et al. June 28, 2	2005-06-28
Digital tracking servo system with multi-track seek with track zero crossing detection Grant 6,909,676 - Kadlec June 21, 2	2005-06-21
Error correction code block format Grant 6,910,174 - Keeler June 21, 2	2005-06-21
Double-sided hybrid optical disk with surface topology Grant 6,908,725 - Blankenbeckler , et al. June 21, 2	2005-06-21
Calibration of tracking error signal gain in a tracking servo system Grant 6,906,985 - Kadlec , et al. June 14, 2	2005-06-14
Digital servo system with loop gain calibration Grant 6,904,007 - Kadlec , et al. June 7, 2	2005-06-07
Kp and Ki lookup system and method Grant 6,901,040 - Watt , et al. May 31, 2	2005-05-31
Tilt focus method and mechanism for an optical drive Grant 6,901,598 - Freeman , et al. May 31, 2	2005-05-31
Close tracking algorithm in a digital tracking servo system Grant 6,898,164 - Kadlec , et al. May 24, 2	2005-05-24
PMAD/PSA digital feedback system Grant 6,898,170 - Watt , et al. May 24, 2	2005-05-24
Digital servo system with second order compensator Grant 6,891,781 - Kadlec , et al. May 10, 2	2005-05-10
Tracking and focus servo system with automatic media type detector Grant 6,891,789 - Watt , et al. May 10, 2	2005-05-10
Block-level storage device with content security App 20050091491 - Lee, Lane W. ; et al.	2005-04-28
Detector input stray light offset calibration in an optical disk drive Grant 6,885,619 - Watt April 26, 2	2005-04-26
System and method for recovering from performance errors in an optical disc drive Grant 6,885,620 - Turner , et al. April 26, 2	2005-04-26
Digital servo system with feed-forward control loops Grant 6,882,601 - Kadlec , et al. April 19, 2	2005-04-19
Digital tracking servo system with tracking skate detection Grant 6,882,603 - Kadlec April 19, 2	2005-04-19
System and method for controlling a spin motor Grant 6,876,609 - Watt , et al. April 5, 2	2005-04-05
Objective lens alignment in optical pickup unit assembly Grant 6,873,580 - Zimmer , et al. March 29, 2	2005-03-29
Optical disk drive with a digital focus and tracking servo system Grant 6,847,597 - Kadlec , et al. January 25, 2	2005-01-25
Tracking servo system including a multi-track seek algorithm with a track zero crossing period integrity test Grant 6,847,596 - Kadlec January 25, 2	2005-01-25
Data cartridge load/unload mechanism for disk drive Grant 6,829,120 - Bagnell , et al. December 7, 2	2004-12-07
Method for aligning actuator assembly to a base in a miniature optical disk drive Grant 6,826,138 - Abrahamson , et al. November 30, 2	2004-11-30
File system management embedded in a storage device Grant 6,823,398 - Lee , et al. November 23, 2	2004-11-23
Magnetic hub assembly for data storage disk Grant 6,817,026 - Berg , et al. November 9, 2	2004-11-09
Tracking and focus servo system with direction sensor Grant 6,813,228 - Kadlec , et al. November 2, 2	2004-11-02
Calibration of a focus sum threshold in a focus servo system Grant 6,813,226 - Kadlec , et al. November 2, 2	2004-11-02
Low profile cartridge for data storage disk Grant 6,809,903 - Bagnell , et al. October 26, 2	2004-10-26
Digital focus and tracking servo system Grant 6,809,995 - Kadlec , et al. October 26, 2	2004-10-26
Digital tracking servo system with multi-track seek Grant 6,781,929 - Kadlec August 24, 2	2004-08-24
Digital tracking servo system with a multi-track seeking and accelerated servo function for regaining a closed tracking loop Grant 6,762,980 - Kadlec , et al. July 13, 2	2004-07-13
BEMF timing system Grant 6,754,151 - Watt June 22, 2	2004-06-22
Time critical and non-time critical tasks control system for an optical disk using first and second processors Grant 6,741,530 - Turner , et al. May 25, 2	2004-05-25
Format for recording data in a storage disk Grant 6,738,333 - Zaharris , et al. May 18, 2	2004-05-18
System and method for moving optical pick up from current position to target position with smooth control Grant 6,738,320 - Kadlec , et al. May 18, 2	2004-05-18
Device and method for detecting cartridge readiness to load in a data storage system Grant 6,735,154 - Nowell May 11, 2	2004-05-11
Tracking and focus servo system with a media type boundary crossing detector Grant 6,728,182 - Kadlec , et al. April 27, 2	2004-04-27
Cartridge for a data storage disk Grant D488,817 - Wadsworth , et al. April 20, 2	2004-04-20
Laser thermal management system Grant 6,717,893 - Niss , et al. April 6, 2	2004-04-06
Spin motor control in an optical drive Grant 6,704,261 - Watt , et al. March 9, 2	2004-03-09
Continuous flexible connection for miniature optical head Grant 6,704,256 - Berg , et al. March 9, 2	2004-03-09
Disk storage and handling magazine Grant 6,685,014 - Dunford February 3, 2	2004-02-03
Low profile and medium protecting cartridge assembly Grant 6,687,215 - Bagnell , et al. February 3, 2	2004-02-03
Cartridge protective case for a data storage disk Grant D485,113 - Bogacz , et al. January 13, 2	2004-01-13
Method and apparatus for compensating optical disks for effects of thin films Grant 6,656,392 - Medower , et al. December 2, 2	2003-12-02
Digital rights management within an embedded storage device Grant 6,636,966 - Lee , et al. October 21, 2	2003-10-21
Disk drive actuator and method of making same Grant 6,632,310 - Freeman , et al. October 14, 2	2003-10-14
Continuous flexible connection method for miniature optical head Grant 6,631,113 - Freeman , et al. October 7, 2	2003-10-07
Writeable medium access control using a medium writeable area Grant 6,631,359 - Braitberg , et al. October 7, 2	2003-10-07
System and method for aligning components of optical head Grant 6,631,302 - Wilson October 7, 2	2003-10-07
Crimping tool for metal hub plate Grant 6,619,100 - Berg , et al. September 16, 2	2003-09-16