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Class Information
Number: 369/44.27
Name: Dynamic information storage or retrieval > With servo positioning of transducer assembly over track combined with information signal processing > Optical servo system > Initialization/start-up or changing modes of system
Description: Subject matter wherein the servo system is affected by a change of mode in operation at the beginning of system operation or a change of mode during system operation.

Sub-classes under this class:

Class Number Class Name Patents
369/44.29 Servo loop gain/switching control 935
369/44.28 While track jumping or crossing 917

Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8711664 Method of controlling mechanical mechanisms of optical storage apparatus for peak power/current reduction, and related optical storage apparatus and machine-readable medium Apr. 29, 2014
8675459 Optical disk apparatus Mar. 18, 2014
8644419 Periodic calibration for communication channels by drift tracking Feb. 4, 2014
8599663 High speed forward sense sampling in optical drives using placed data patterns Dec. 3, 2013
8570846 Focus jump method for optical disk device and multi-layer disk Oct. 29, 2013
8526278 Recording method, recording device, optical disc, optical disc manufacturing method, and optical disc drive device Sep. 3, 2013
8514676 Method and device for sensitivity compensation Aug. 20, 2013
8493824 Optical head and optical disc device Jul. 23, 2013
8488423 Servo control device, optical disk device, and data transfer method Jul. 16, 2013
8483024 Disc discrimination apparatus and method Jul. 9, 2013
8472290 Apparatus and method identifying disc type Jun. 25, 2013
8427913 Servo control signal generation device and an optical disk device using the same Apr. 23, 2013
8422341 Device and method for recording and/or reproducing data onto/from information recording medium by using near-field light and information recording medium Apr. 16, 2013
8416654 Optical disc drive apparatus, optical pickup control method and program Apr. 9, 2013
8411547 Information recording medium, information supply system, and optical information device Apr. 2, 2013
8406100 Optical disc device and tracking servo control circuit therefor Mar. 26, 2013
8363524 Information reproducing apparatus and information reproducing method Jan. 29, 2013
8363516 Method and apparatus for compensating astigmatism in an optical storage system Jan. 29, 2013
8351311 Semiconductor integrated circuit and optical disk device having the same Jan. 8, 2013
8320230 Processing circuits and methods for optical data Nov. 27, 2012
8284642 Optical disk apparatus Oct. 9, 2012
8270266 Methods and devices for detecting wobbles on an optical disc Sep. 18, 2012
8270273 Calibration circuit and method thereof for data recovery Sep. 18, 2012
8213270 Optical disk recording apparatus and program Jul. 3, 2012
8208354 Optical disc apparatus, driving method of optical disc apparatus Jun. 26, 2012
8189433 Optical disk drive device and additional recording method May. 29, 2012
8189438 Control apparatus, control method, access apparatus, access method, program and write-once recording medium May. 29, 2012
8184519 Optical pickup apparatus May. 22, 2012
8179752 Optical disc apparatus therefor May. 15, 2012
8154960 Power saving method and system applied in optical disk drive Apr. 10, 2012
8154961 Optical disk apparatus and focus jump method for multilayer optical disk Apr. 10, 2012
8149668 Optical disk drive and method for determining disk type Apr. 3, 2012
8134902 Optical disc drive apparatus and its control method Mar. 13, 2012
8125861 Optical disk device Feb. 28, 2012
8120998 Optical disk drive and method for driving the optical disk drive in relation to a velocity switching point Feb. 21, 2012
8120999 Optical disc apparatus and defocus correcting method Feb. 21, 2012
8121000 Optical disk apparatus Feb. 21, 2012
8102738 Optical pickup and optical disk apparatus Jan. 24, 2012
8097840 Configurable photo detector circuit Jan. 17, 2012
8094528 Method for reading media information from optical recording media Jan. 10, 2012
8090906 Dynamic processor bandwidth allocation in response to environmental conditions Jan. 3, 2012
8085628 Focus servo controlling method and apparatus and optical disk drive using the focus servo controlling method Dec. 27, 2011
8081549 Information recording and reproducing apparatus and a method of controlling an information recording and reproducing apparatus Dec. 20, 2011
8081543 Optical disc apparatus and focus control method Dec. 20, 2011
8077564 Method for improving readability of an optical disc, and associated optical storage apparatus Dec. 13, 2011
8077574 Drive device and method for controlling the same Dec. 13, 2011
8072850 Optical information recording apparatus Dec. 6, 2011
8059501 Optical disk drive for scanning an optical disk with a scanning velocity and method for scanning an optical disk with a scanning velocity Nov. 15, 2011
8059939 Recording medium, playback device, and integrated circuit Nov. 15, 2011
8040765 Initialization method for information recording medium, initialization apparatus for information recording medium, and information recording medium Oct. 18, 2011

1 2 3 4 5 6 7 8 9 10

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