Resources Contact Us Home
Browse by Category: Main > Information Technology
Class Information
Number: 369/124.15
Name: Dynamic information storage or retrieval > Specific detail of information handling portion of system > Radiation beam modification of or by storage medium > With details of electrical signal processing > Level detecting using reference signal
Description: Subject matter including step or structure to detect an amplitude of an information signal by comparison with a signal that provides a measuring standard.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8659982 Optical information recording/reproducing apparatus and optical information reproducing apparatus Feb. 25, 2014
8605563 Optical disc device and control method of optical disc Dec. 10, 2013
8599663 High speed forward sense sampling in optical drives using placed data patterns Dec. 3, 2013
8553508 Focus servo control device, and information recording/reproducing device using the same Oct. 8, 2013
8526289 Optical information reproducing apparatus and optical information reproducing method Sep. 3, 2013
8526279 Method and apparatus for detecting wobble defects in optical recording system Sep. 3, 2013
8514678 Method and apparatus for detecting land pre-pits Aug. 20, 2013
8451702 Direct read after write for optical storage device May. 28, 2013
8427917 Optical pickup apparatus, integrated circuit, and method for controlling laser output of optical pickup apparatus Apr. 23, 2013
8315136 Method and apparatus for detecting wobble defects in optical recording system Nov. 20, 2012
8232758 Controller of electric motor having function of estimating inertia and friction simultaneously Jul. 31, 2012
8223617 Device for reducing power consumption of optical drive and method for the same Jul. 17, 2012
8184516 Method for controlling the quality of storage media May. 22, 2012
8164993 Method and apparatus for detecting land pre-pits Apr. 24, 2012
8116191 Device for reducing power consumption of optical drive and method for the same Feb. 14, 2012
8089836 Differential phase detector Jan. 3, 2012
8023391 Photodetection device and optical disk device Sep. 20, 2011
7983137 Method and apparatus for processing optical disc signal Jul. 19, 2011
7974164 Information recording apparatus and method, and computer program Jul. 5, 2011
7957244 Method of reading optical information in super-resolution Jun. 7, 2011
7898930 Optical disk drive Mar. 1, 2011
7839756 Method and system for controlling optical pick-up head locked to track center of optical storage medium Nov. 23, 2010
7813229 Gain setting method for optical disk reproducing apparatus Oct. 12, 2010
7800989 Disc-driving apparatus and method for controlling the same Sep. 21, 2010
7796480 Apparatus and methods for light spot servo signal detection Sep. 14, 2010
7755999 Optical disc driving apparatus and land pre-pit detection method using the same Jul. 13, 2010
RE41177 Track count method for an optical disc in an optical disc system Mar. 30, 2010
7590157 Laser noise elimination circuit and optical disc device Sep. 15, 2009
7564754 Disk apparatus Jul. 21, 2009
7554897 Data reproducer Jun. 30, 2009
7477591 Data slicer of dynamically adjusting slice level Jan. 13, 2009
7450484 Reproducing and/or recording apparatus and method determining whether sessions are open for a medium for reproduction and/or recording Nov. 11, 2008
7403466 Data slice generation method and apparatus for optical disk drive Jul. 22, 2008
7400821 Device and method for reproducing photographic sound recordings Jul. 15, 2008
7397736 Optical disc device and tracking controlling method therefor Jul. 8, 2008
7394748 Method and apparatus for optical disk recording capable of reducing settling time and generating an accurate channel clock signal Jul. 1, 2008
7369625 Apparatus and method for slicing RF signal and compensating for the slice level of RF signal in disk drive May. 6, 2008
7260050 Apparatus for detecting physical marks from wobble signal and method thereof Aug. 21, 2007
7224647 Method, apparatus, and medium for controlling a servo using a detected header field signal, and method, apparatus, and medium for detecting the header field signal May. 29, 2007
7221638 Electronic circuit for decoding a read signal from an optical storage medium May. 22, 2007
7212486 Optical disk device setting a gain of an amplifier so that a peak value and a bottom value of wobble signal components coincide May. 1, 2007
7200082 Method and apparatus for optical disk recording capable of reducing settling time and generating an accurate channel clock signal Apr. 3, 2007
7154833 Laser power selecting method, information recording medium, and information recording device Dec. 26, 2006
7142499 Method and apparatus for automatically tuning pre-pit slicing level Nov. 28, 2006
7120110 Signal processing circuit for noise elimination and demodulator circuit using the same for accurate demodulation Oct. 10, 2006
7095683 Tracking and focus digital servo system with write abort Aug. 22, 2006
7079475 Pre-pit information-detecting apparatus, optical-information detecting apparatus, program, and computer-readable information-recording medium Jul. 18, 2006
7054238 Signal shaping circuit May. 30, 2006
7012872 Image reading device for an optical device Mar. 14, 2006
6982941 Mirror detection signal generator Jan. 3, 2006

1 2 3 4

  Recently Added Patents
System and method for redundant array copy removal in a pointer-free language
Switching module and switching synchronization system
Motor device and method of manufacturing the same
Methods and systems for motion estimation with nonlinear motion-field smoothing
Sporting goal practice screen
Inter vehicle communication system
Incentive based recommendation method for mobile station content
  Randomly Featured Patents
Method and apparatus for the cross-sectional measurement of electric insulated conductors
Cytological system illumination integrity checking apparatus and method
Grooved shaft seal
Liquid system for executing an anionic lactam polymerization
Stepped heat exchanger coils
Coatings for the inhibition of undesirable oxidation in an electrochemical cell
Process for production of modified thermoplastic resin and modified thermoplastic resins
Monitoring device with a switching mechanism
Dosage forms useful for modifying conditions and functions associated with hearing loss and/or tinnitus
Data level selection for multilevel VSB transmission system