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Class Information
Number: 369/116
Name: Dynamic information storage or retrieval > Specific detail of information handling portion of system > Radiation beam modification of or by storage medium > Light intensity adjustment or maintenance
Description: Subject matter including modification of the beam source to obtain a desired or constant intensity.

Patents under this class:

Patent Number Title Of Patent Date Issued
8630158 Method for reducing a number of input terminals of an automatic power control circuit, and associated automatic power control circuit Jan. 14, 2014
8625402 Device and method for writing data to an optical disc Jan. 7, 2014
8625401 System and method for reducing RF emissions associated with an optical drive laser diode HFM signal Jan. 7, 2014
8625399 Optical disk apparatus and its reproducing method Jan. 7, 2014
8625397 Optical information storage medium reproduction apparatus and control method of the same Jan. 7, 2014
8619536 Device and method for controlling an optical source driver Dec. 31, 2013
8599662 Reproducing device and reproducing method Dec. 3, 2013
8582408 Optical read/write apparatus Nov. 12, 2013
8576686 Apparatus for multilevel optical recording Nov. 5, 2013
8565048 Unipolar current driver Oct. 22, 2013
8547811 Laser power control method and laser power control apparatus Oct. 1, 2013
8537868 Laser diode write driver feedback, current mirror, and differential-pair circuitry Sep. 17, 2013
8537651 Optical disc device Sep. 17, 2013
8537644 Heat source management in data storage device Sep. 17, 2013
8531929 Recording methods and devices for recording information on dual layer recordable disks Sep. 10, 2013
8514679 Optical information record/playback device Aug. 20, 2013
8509045 Flexible optical write strategy Aug. 13, 2013
8488433 Modulated signal detecting apparatus and modulated signal detecting method Jul. 16, 2013
8472302 Recording device and optical oscillator device Jun. 25, 2013
8467283 Short-pulse light source, laser light emitting method, optical device, optical disk device, and light pickup Jun. 18, 2013
8462604 Method and apparatus for reading from and/or writing to an optical recording medium Jun. 11, 2013
8456980 Disk drive compensating for laser induced head protrusion in heat assisted magnetic recording Jun. 4, 2013
8441909 Disk drive increasing laser power at beginning of write in heat assisted magnetic recording May. 14, 2013
8437242 Optical recording medium for writing data using multiple pulses May. 7, 2013
8437232 High frequency modulator May. 7, 2013
8427928 Optical head and optical information device Apr. 23, 2013
8422345 Optical information storage medium reproduction apparatus and control method of the same Apr. 16, 2013
8422344 Optical information storage medium reproduction apparatus and control method of the same Apr. 16, 2013
8416671 Recording apparatus Apr. 9, 2013
8416665 Method of and apparatus for recording data on optical recording medium Apr. 9, 2013
8416661 Optical disk device and power supply method Apr. 9, 2013
8411549 Circuit for preventing destruction of semiconductor laser element, and optical disc device provided with the circuit Apr. 2, 2013
8411538 Optical information storage medium reproduction apparatus and control method of the same Apr. 2, 2013
8395983 Optical pickup apparatus Mar. 12, 2013
8395977 Method and apparatus for calibrating write strategy Mar. 12, 2013
8391116 Optical disc recording method and optical disc recording apparatus Mar. 5, 2013
8379503 Optical information recording reproduction apparatus and optical information recording reproduction method Feb. 19, 2013
8374069 Storage medium, reproducing method, and recording method Feb. 12, 2013
8358568 Optical disc reproduction power setting method, optical disc reproduction method, and optical disc device Jan. 22, 2013
8355310 Optical information recording method Jan. 15, 2013
8355306 Optical recording medium, information recording method, and information reproducing method Jan. 15, 2013
8355304 Optical information recording medium, reproducing device for optical information recording medium, control method and control program for the reproducing device, and medium with the control pr Jan. 15, 2013
8355303 Super-resolution optical disc reader and read method optimized through reflectivity measurement Jan. 15, 2013
8345522 Flexible optical write strategy Jan. 1, 2013
8339916 Optical recording medium, information recording method, and information reproducing method Dec. 25, 2012
8335144 Laser driving apparatus, laser driving method, optical apparatus, optical unit and pulse current generation circuit Dec. 18, 2012
8335142 Optical disc drive and method of controlling laser light power in optical disc drive Dec. 18, 2012
8335139 Control device, control method, and control program Dec. 18, 2012
8325584 Storage medium, reproducing method, and recording method Dec. 4, 2012
8325583 Laser diode driver with wave-shape control Dec. 4, 2012

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