LexDanaLexDanabeta
Inventor

Christopher J. Turner

Inventor
Niwot, CO, US

Overview

59→
Patents
2001–2020
Patent span
Physics
Primary field (CPC G)

Patents· 59 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer68%
LOC0616%
A47FSpecial furniture, fittings, or accessories for shops, storehouses, bars, restaurants or the like5%
A47BTables3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
B08BCleaning in general2%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%
E03FSewers2%
PatentTitleYear
D0879521Shelf components2020D0879522Shelf components2020D0874197Shelf management dividers2020D0867797Shelf components201910,434,547Pipeline inspection device2019D0856040Merchandiser parts201910,314,412Retractable hinged shelf display2019D0843760Shelf components2019D0836954Shelf components201910,154,739Universal merchandiser and methods relating to same2018D0812945'Shelf components'2018D0810477'Basket display parts'20189,877,599'Basket product display and related methods'2018D0801734'Shelf management parts'20177,782,721'Digital focus and tracking servo system with multi-zone calibration'20107,680,004'Digital servo system with inverse non-linearity compensation'20107,672,199'Close focus algorithm in a digital focus servo system'20107,593,300'Digital tracking servo system with off-format detection'20097,414,940'Calibration of a focus error signal gain in a focus servo system'20087,196,979'Calibration storage methods for a digital focus and tracking servo system with calibration'20077,116,621'System and method for handling commands in an optical disc drive'20067,095,685'System and method for detecting and recovering from an off-format state in an optical disc drive'20067,095,683'Tracking and focus digital servo system with write abort'20067,092,322'Calibration of focus error signal offset in a focus servo system'20067,079,459'System and method for performing a spin motor startup operation'20067,065,018'CLV system and method using PSA lookup'20067,057,983'System and method for controlling tracking and seeking in an optical disc drive'20067,054,242'System and method for controlling focus in an optical disc drive'20067,038,988'System and method for controlling time critical operations in a control system for an optical disc drive'20067,023,776'Calibration initiation methods for a tracking and focus servo system'20067,023,766'Flexible servicing of servo algorithms using a digital signal processor'20067,020,054'Digital servo system with biased feed-forward'20066,980,196'Printable electronic display'20056,977,873'System and method to adjust the level of re-calibration effort based on disc drive performance'20056,965,547'Tracking and focus servo system with error signal inverse non-linearity calibration'20056,963,524'System and method for controlling interrupts in a control system for an optical disc drive'20056,958,963'System and method for handling events in an optical disc drive'20056,950,380'Detector input dark current offset calibration in an optical disk drive digital servo'20056,930,963'Tracking and focus servo system with head load'20056,906,985'Calibration of tracking error signal gain in a tracking servo system'20056,901,040'Kp and Ki lookup system and method'20056,898,170'PMAD/PSA digital feedback system'20056,898,164'Close tracking algorithm in a digital tracking servo system'20056,891,789'Tracking and focus servo system with automatic media type detector'20056,885,620'System and method for recovering from performance errors in an optical disc drive'20056,876,609'System and method for controlling a spin motor'20056,847,597'Optical disk drive with a digital focus and tracking servo system'20056,813,226'Calibration of a focus sum threshold in a focus servo system'20046,809,995'Digital focus and tracking servo system'20046,762,980'Digital tracking servo system with a multi-track seeking and accelerated servo function for regaining a closed tracking loop'20046,741,530'Time critical and non-time critical tasks control system for an optical disk using first and second processors'20046,738,320'System and method for moving optical pick up from current position to target position with smooth control'20046,728,182'Tracking and focus servo system with a media type boundary crossing detector'20046,704,261'Spin motor control in an optical drive'20046,624,960'Current sensing drum/cleaning wheel positioning method and apparatus for magnetic storage system'20036,480,182'Printable electronic display'20026,459,540'Variable speed recording method and apparatus for a magnetic tape drive'20026,364,234'Tape loop/slack prevention method and apparatus for tape drive'20026,307,701'Variable speed recording method and apparatus for a magnetic tape drive'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2003Based in Longmont, CO, US· patent location history
2002–2003Patents assigned to EXABYTE CORP (2)· patent assignee history
2002–2005Patents assigned to MASSACHUSETTS INST TECHNOLOGY (2)· patent assignee history
2002–2005Based in Somerville, MA, US· patent location history
2004–2010Patents assigned to DPHI ACQUISITIONS INC (38)· patent assignee history
2004–2010Based in Niwot, CO, US· patent location history
2017–2020Patents assigned to RETAIL SPACE SOLUTIONS LLC (11)· patent assignee history
2017–2019Patents assigned to DCI MARKETING INC (7)· patent assignee history
2017–2020Based in Pewaukee, WI, US· patent location history
2019Based in Peawaukee, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DPHI ACQUISITIONS INC382004–2010
RETAIL SPACE SOLUTIONS LLC112017–2020
DCI MARKETING INC72017–2019
EXABYTE CORP22002–2003
MASSACHUSETTS INST TECHNOLOGY22002–2005
Locations
LocationPatentsSpan
Niwot, CO, US392004–2010
Pewaukee, WI, US132017–2020
Longmont, CO, US42001–2003
Somerville, Massachusetts, US22002–2005
Peawaukee, WI, US12019