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        <title>Free Patents Online: Dynamic information storage or retrieval</title>
        <link>http://www.freepatentsonline.com./rssfeed/rssapp369.xml</link>
        <description>USPTO Class 369 Dynamic information storage or retrieval</description>
        <language>en-us</language>
        <lastBuildDate>Thu, 24 Dec 2009 08:00:00 EST</lastBuildDate>
        <item>
            <title><![CDATA[TRANSPONDER INCORPORATED INTO AN ELECTRONIC DEVICE]]></title>
            <link>http://www.freepatentsonline.com./y2009/0320139.html</link>
            <description><![CDATA[An electronic device. The device comprises a metalization layer and an integrated circuit chip incorporated into the device wherein the integrated circuit chip is capacitively coupled to the metalization layer. The device comprises a first substrate having the metalization layer formed on the substrate, a cap layer covering at least the entire metalization layer and at least a portion of the first substrate not covered by the metalization layer. The integrated circuit chip is coupled to the first substrate, and is placed in proximity and in non-physical contact with the metalization layer. A conductive layer is attached to the integrated circuit chip. The conductive layer has at least a portion placed in a non-physical contact with the metalization layer. The integrated circuit chip is capacitively coupled to the metalization layer through the conductive layer and the metalization layer.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Recording apparatus, recording method, recording program, image pickup apparatus, image pickup method, and image pickup program]]></title>
            <link>http://www.freepatentsonline.com./y2009/0317067.html</link>
            <description><![CDATA[Recording of video data is enabled by a management structure of a clip which is compatible with a BD-ROM standard. In accordance with the recording starting operation, the recording of a stream in which the video data and audio data have time-divisionally been multiplexed on a packet unit basis onto a recording medium is started. In accordance with the recording stopping operation, the stream stored in a buffer is written as a stream file onto the recording medium and a clip information file corresponding to the stream file is formed. A play item showing the whole clip information file is formed and added to the existing play list on the recording medium. A mark is stamped to the play list at time corresponding to an IN point of the play item. Subsequently, the play item which is formed in association with the recording start and stop is similarly further added to the existing play list and the mark is further stamped at the time corresponding to the IN point.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, INFORMATION REPRODUCING DEVICE AND METHOD, AND COMPUTER PROGRAM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0317058.html</link>
            <description><![CDATA[An optical disc ( 100 ) is provided with a recording region where prescribed clock information (WBL) is preformatted for recording. The clock information is (i) included in a first frequency band that is definable by a first reference frequency (Fstd) (that is impossible for a conventional reproducing device to detect by a detecting method based on a self-correlation) and is (ii) defined by a frequency that is integer times the first frequency.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, INFORMATION REPRODUCING DEVICE AND METHOD, INFORMATION RECORDING/REPRODUCING DEVICE AND RECORDING METHOD, AND COMPUTER PROGRAM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316566.html</link>
            <description><![CDATA[An information recording medium ( 100 ) is provided with: a first pre-recording area, in which reproducible preformed information including physical address information is recorded in advance and in which preformed address information assigned in advance is not recorded;
 
     a second pre-recording area, which is adjacent to the first pre-recording area and in which each of the preformed address information and unreproducible preformed information is recorded in advance; a first recording area, which is adjacent to the second pre-recording area and in which first record information is recorded and which is reproduced by an information reproducing apparatus in reproduction, the first record information including physical address information which can be reproduced by the information reproducing apparatus; and a second recording area, which is adjacent to the first recording area and in which predetermined second record information is recorded.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[METHOD AND SYSTEM FOR ACTIVATION OF AN OPTICAL ARTICLE]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316565.html</link>
            <description><![CDATA[A method for activating an optical article includes providing an optical article, wherein at least one mark is disposed on the optical article, wherein the mark comprises an optical-state change material in an initial state, the initial state preventing the optical article from being read by a player; deriving an unlock code by cryptographic operations on an optical article operatively coupled with a POS equipment and a data input from a medium encrypted with a cryptographic algorithm; deriving a toggling signal from an unlock code, and applying the toggling signal to the at least one mark resulting in changing the optical-state change material to a final state, the final state allowing the optical article to be read by the player; wherein the toggling signal comprises a set of values corresponding to the respective states of each of a plurality of marks on the surface of the optical article, and wherein applying the toggling signal results in setting each of the marks to either one of an initial state or a final state, corresponding to the value for the mark in the toggling signal.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[ELECTRIC FIELD READ/WRITE APPARATUS AND METHOD]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316564.html</link>
            <description><![CDATA[Provided are an electric field read/write apparatus and method, which reproduce information written in a recording medium by using an electric field read/write head including a channel. In the electric field read/write apparatus and method, an electric field generated from the recording medium is modulated by using a modulation signal, a variation in the modulated electric field is detected, and a voltage signal determined according to the detected variation is demodulated and information written in the recording medium is determined according to a result of the demodulation.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OBJECTIVE LENS, OPTICAL PICKUP APPARATUS AND OPTICAL INFORMATION RECORDING AND/OR REPRODUCING APPARATUS]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316563.html</link>
            <description><![CDATA[An objective lens according to the present invention is an objective lens used for an optical pickup apparatus, and the objective lens includes a superimposed structure on a surface of a lens with a power in which a first optical path difference providing structure changing spherical aberration in under-corrected direction when a wavelength of an incident light flux becomes longer, and a second optical path difference providing structure changing spherical aberration in over-corrected direction when a wavelength of an incident light flux becomes longer are superimposed.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Optical Pickup Apparatus]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316562.html</link>
            <description><![CDATA[An optical pickup apparatus comprising: a laser-light source that selectively emits first and second laser lights parallel with each other; a diffraction grating that includes a plurality of periodic structures joined to be different in phase from each other in a direction optically corresponding to an optical-disc-tracking direction, and generates 0th-order and ±1st-order-diffracted lights by diffracting the first or second laser light; an objective lens that focuses the 0th-order and ±1st-order-diffracted lights generated from the diffraction grating on the same track of the disc; and a photodetector to which reflected light of the 0th-order and ±1st-order-diffracted lights focused on an optical disc is applied through the objective lens, and which generates a differential-push-pull signal, a direction of a straight line connecting light-emitting points of the first and second laser lights in the laser-light source being inclined relative to the direction optically corresponding to the optical-disc-tracking direction in the diffraction grating.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Optical Information Recording Method, Optical Information Reproduction Method and Optical Disk Device]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316561.html</link>
            <description><![CDATA[When a phase shift is to be evaluated, based on a difference between an output from a waveform equalization circuit to equalize an input reproduced signal to a predetermined target equalization characteristic and the target equalization characteristic, the phase shift of the reproduced signal relative to a channel clock, a group delay characteristic with respect to the frequency of the waveform equalization circuit is fixed. Hence, an equalized waveform as an output from the waveform equalization circuit can preserve phase shift information of the inputted reproduced signal to correctly detect the phase shift of the reproduced waveform using the equalized waveform. It is hence possible to realize, with high precision, optimal value learning of various parameters for the recording, reproduction, and servo by use of the phase shift as an index.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OPTICAL PICKUP AND INFORMATION EQUIPMENT]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316560.html</link>
            <description><![CDATA[An optical pickup ( 100 ) includes: an irradiating device ( 101 ) for irradiating a laser beam (LB); a first light focusing device ( 104 ) for focusing the laser beam on the recording medium ( 10 ); a collimator device ( 102 ) which is disposed on the optical path between the irradiating device and the first light focusing device and which can be displaced along the optical path of the laser beam; a splitting device ( 103 ) which reflects one portion of the laser beam and transmits therethrough another portion of the laser beam; a light receiving device ( 111 ) for receiving the reflected one portion of the laser beam; and a second light focusing device ( 112 ) for focusing, on the light receiving device, the reflected one portion of the laser beam, the light receiving device and the first light focusing device is disposed at a position at which rate of change in light density of the laser beam on the first light focusing device before and after displacement of the collimator device is substantially the same as that on the light receiving device before and after the displacement of the collimator device.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Optical information recording apparatus, optical information recording method, optical information reproducing apparatus and optical information reproducing method]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316559.html</link>
            <description><![CDATA[An optical information recording/reproducing apparatus and an optical information recording/reproducing method that record information using holography, wherein the optical information recording/reproducing apparatus includes a signal generation unit that generates two-dimensional data by a two-dimensional encoding method in which a lower-limit value of a number of continuous ON/OFF pixels in an array in one direction of pixels in a two-dimensional spatial light modulator is K(K≧2, K: natural number); and a pickup that records the two-dimensional data, generated by the signal generation unit, on a hologram disc.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[TWO-DIMENSIONAL DEMODULATION METHOD, TWO-DIMENSIONAL DEMODULATION APPARATUS AND HOLOGRAPHIC APPARATUS]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316558.html</link>
            <description><![CDATA[A two-dimensional demodulation method for reproducing a data page by means of decision feedback Viterbi detection processing from a recording medium on which a data page has been recorded as a set of a plurality of two-dimensional modulation pattern symbols each of which comprises a plurality of pixels, and which have been modulated two-dimensionally, the method comprising: a step of determining a value of pixel deviation in a reproduction image obtained by receiving light from the recording medium on an image sensor; a step of splitting an output signal of the image sensor which indicates the reproduction image of the light received from the recording medium into signal symbol data by division into blocks in accordance with the two-dimensional modulation pattern symbols; and a step of carrying out decision feedback Viterbi detection for each signal symbol data in accordance with the pixel deviation value.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[INFORMATION REPRODUCING APPARATUS AND METHOD, AND COMPUTER PROGRAM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316557.html</link>
            <description><![CDATA[An information reproducing apparatus ( 1 ) is provided with: an amplitude limiting device ( 151, 152 ) for obtaining an amplitude limit signal (RS LIM ) by limiting an amplitude level of a read signal (R RF ) read from a recording medium ( 100 ) on the basis of a predetermined amplitude limit value (L); a filtering device ( 153 ) for obtaining an equalization-corrected signal by performing a high-frequency emphasizing and filtering process on the amplitude limit signal; and an adjusting device ( 18 ) for variably adjusting a reference level which indicates a reference point of the amplitude level on the amplitude limiting device.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[DRIVING APPARATUS AND METHOD, PROGRAM, AND RECORDING MEDIUM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316556.html</link>
            <description><![CDATA[A driving apparatus includes: a driving mechanism slider-driving a head including a first optical pickup and a second optical pickup, the first optical pickup and the second optical pickup having a same specification; a calculating mechanism performing predetermined calculation using a first slide-error signal obtained by filtering a signal from the first optical pickup and a second slide-error signal obtained by filtering a signal from the second optical pickup; and an outputting mechanism outputting a signal from the calculating means as a slider control signal for driving the driving mechanism.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Multilayer Optical Disk, Multilayer Optical Disk Recording Apparatus and Multilayer Optical Disk Reproducing Apparatus]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316555.html</link>
            <description><![CDATA[A multilayer optical disk apparatus comprises an optical pickup that emits N (N represents an integer of two or more) laser beams of the same wavelength. The optical pickup emits the N laser beams at the same time, focuses the N laser beams on a first recording layer group alternately configured by N recording layers of the multilayer optical disk and performs a recording operation on the N recording layers at the same time. When changing the recording layers the optical pickup focuses the N laser beams on a second recording layer group configured by recording layers adjacent to the respective recording layers configuring the first recording layer group and performs a recording operation on the N recording layers at the same time.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[IMAGE RECORDING/REPRODUCING DEVICE]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316554.html</link>
            <description><![CDATA[There is provided an image recording/reproducing device that can discriminate a disk separation error that is specific to removable hard disks. A disk error detector ( 51 ) detects an occurrence of a disk error depending on whether a removable hard disk ( 15 ) can be recognized or not. A mount status detector ( 55 ) detects a presence or absence of the removable hard disk ( 15 ) as a disk mount status. The mount status detector ( 55 ) may detect the disk mount status based on a detection result of a write-protect switch ( 19 ) of the removable hard disk ( 15 ). An error type discriminator ( 57 ), based on the detected disk mount status, discriminates an error type of the disk error, and determines that the error type is disk separation if the removable hard disk ( 15 ) has become nonexistent. An error handler ( 59 ) performs error handling in accordance with the error type discriminated by the error type discriminator ( 57 ).]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[TAPE CONDITION IN A TAPE DATA TRANSFER APPARATUS]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316553.html</link>
            <description><![CDATA[A tape data transfer apparatus operable to determine a tape damage condition of a tape received in the apparatus by determining a value representative of a tape pack size of the received tape and comparing the value representative of tape pack size with a tape pack size reference value that is read from the cartridge.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Time interval analyzer which measures delay of read signal from medium]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316552.html</link>
            <description><![CDATA[A time interval analyzer includes a phase comparator which decides whether a measured signal contains a delay quantity for either a positive delay or a negative delay relative to a characteristic value, and a processor circuit which outputs a ratio of a number of the measured signals containing the positive delay and a number of the measured signals containing the negative delay.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[APPARATUS AND METHOD FOR WRITING DATA INTO STORAGE MEDIUM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316551.html</link>
            <description><![CDATA[An apparatus for writing encoded data into a storage medium includes a quality-check signal generator, a defect judgment unit and a verification unit. The quality-check signal generator is utilized for generating a quality-check signal; the defect judgment unit is coupled to the quality-check signal generator and is utilized for generating a defect judgment result according to the quality-check signal; and the verification unit is coupled to the defect judgment unit and is utilized for referring to the defect judgment result to selectively verify the encoded data that have been written into the storage medium.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Recording/Reproducing Apparatus and Tracking Control Method]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316550.html</link>
            <description><![CDATA[A recording/reproducing apparatus and a tracking control method which can perform data processing for reliably recording or reproducing data on or from a recording medium are disclosed. Tracking error signal (TE) is generated using difference signal (A−B) produced from reflected light from a recording medium and an offset included in the difference signal is compensated for using another reflected light received separately from the reflected light. Offset-compensated tracking error signal ((A−B)−k(C−D)) is obtained by subtracting another difference signal (C−D) produced from the separately received reflected light according to gain (k) from difference signal (A−B). Different gains may be used for areas on the recording medium having different reflectances. Thus, the tracking error signal can be compensated for an optical offset caused by lens movement and an offset caused by different reflectances and light radiated to the recording medium can accurately follow its track to perform reliable data processing.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OPTICAL DISK DRIVE FOR SCANNING AN OPTICAL DISK WITH A SCANNING VELOCITY AND METHOD FOR SCANNING AN OPTICAL DISK WITH A SCANNING VELOCITY]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316549.html</link>
            <description><![CDATA[An optical disk drive and a method for scanning an optical disk that includes a substantially circular track with a scanning velocity is provided. A servo control signal (SCS) is determined based on a servo error signal (SES). A first performance indicator (IND 1 ) of the servo actuator is determined from at least one of the SES and SCS. IND 1  is compared against a first pre-determined threshold (ITHR 1 ), determining a first servo margin (MAR 1 ). The scanning velocity is set in dependence on at least MAR 1.  In particular, scanning velocity is reduced when the first performance indicator exceeds the first pre-determined threshold. Additionally or alternatively, a bandwidth of control of the servo actuator can be adjusted in dependence on at least one of a second servo margin, determined from at least one of SES and SCS, and a third servo margin, associated with a mark quality determined from a central aperture signal.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[DATA PROCESSING APPARATUS AND METHOD FOR REPRODUCING DATA OF AN OPTICAL RECORDING MEDIUM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316548.html</link>
            <description><![CDATA[A data processing apparatus utilized for reproducing data from an optical storage medium has individual checking modules for separately controlling a data outputting operation of a data buffering unit according to the data buffered in the data buffering unit and a primary defect list, and for controlling a decoding operation of a decoding unit according to the data stored in a memory unit and a secondary defect list. The flow path of the related data processing method is therefore simplified because all the checking operations of the defective status of the data read from the optical storage medium are accomplished by the checking modules.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OPTICAL DISCS FOR MEASURING ANALYTES]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316547.html</link>
            <description><![CDATA[This invention directs to an optical disc assembly configured to receive an analyte which can be detected by a standard optical disc reader or an optical disc reader modified therefrom. The optical disc assembly may preferably be designed so that the optical disc reader can track the disc and detect the analyte concurrently and discriminably. The optical disc assembly contains or encodes optically readable features which are trackable by the optical disc reader and which have encoded speed information enabling the optical disc reader to rotate the optical disc assembly at a determinable speed. The optical disc assembly also includes an analyte section capable of receiving the analyte that can be detected by the optical disc reader.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Storage drive performance characterization]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316546.html</link>
            <description><![CDATA[A storage system is configured to determine a redundancy group configuration for a plurality of storage drives by grouping storage drives with a similar performance group designation together. When a storage drive is inserted, the storage system tests the performance of the storage drive. The storage drive may comprise a serial ATA (advanced technology attachment) (SATA) hard drive and/or a solid state drive. The storage system stores the result in a database. The storage system assigns the storage drive a performance group designation based on the result and groups the storage drive into a redundancy group. The storage system then displays the redundancy group configuration for the plurality of storage drives so that a storage administrator may configure the redundancy groupings of the storage drives of the storage system based on the redundancy group configuration displayed.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Multi-layered recording medium, and method and apparatus for recording data]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316545.html</link>
            <description><![CDATA[A multi-layered recording medium, and a method and apparatus for recording data in the recording medium are disclosed. A multi-layered recording medium, each of which includes an inner area, a data area, and an outer area, includes: first layer having at least a test area assigned to the inner area; and second layer having at least a management area assigned to the inner area, wherein the test area in the first layer is not physically located at the same location as the management area assigned to the second layer adjacent to the first layer with respect to an incident beam.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[METHOD OF OPERATING A DATA RECORDING DEVICE]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316544.html</link>
            <description><![CDATA[A method of operating a data recording device DRD comprising a reading/writing head OH for reading/writing data on a data record carrier OM insertable into the data recording device, the method comprises the steps of: varying at least one reading/writing head operating parameter until said operating parameter reaches a determined value, determining at least one error associated to the reading/writing head operating parameter, —regulating the reading/writing head operating parameter so as to maintain the error lower than an error threshold.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OPTICAL PICKUP, OPTICAL INFORMATION REPRODUCING APPARATUS AND OPTICAL INFORMATION REPRODUCING METHOD]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316543.html</link>
            <description><![CDATA[An optical pickup includes: a light source that emits first light; an objective lens that condenses the first light and allows it to irradiate a track having formed therein a recording mark for intercepting the first light in a uniform recording layer of an optical information recording medium; and a light receiving section that receives transmitted light which has transmitted through the track.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[INFORMATION RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316542.html</link>
            <description><![CDATA[An information recording device ( 1 ) is provided with recording element ( 3  and the like) for recording a recording mark by irradiating an information recording medium ( 100 ) with a laser beam; setting element ( 11  and the like) for setting recording conditions, corresponding to changes of the characteristics of the information recording medium with time; and control element ( 10  and the like) for controlling the recording element to record the recording mark under the set recording conditions.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[STORAGE APPARATUS AND ESTIMATING METHOD OF POWER CONSUMPTION FOR STORAGE APPARATUS]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316541.html</link>
            <description><![CDATA[Power consumption is calculated in accordance with an operation state of disk devices without using a power meter in a storage system. The power consumption in accordance with the operation state is calculated as follows. That is, information on the power consumption for every type of hard disks is stored in advance when types of I/O process (random/sequential of read and write) operate at idle time up to a limit state in every type of hard disks. A control unit of the storage system aggregates time waiting a response from the hard disks in every type of I/O process. The power consumption of the disks is calculated on the basis of the information on the power consumption stored in advance and a sum of the waiting time of the response from the hard disks.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OPTICAL DISC APPARATUS AND CONTROL METHOD THEREOF]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316540.html</link>
            <description><![CDATA[The present invention provides an optical disc apparatus that reduces access time while suppressing the emanation of heat from a beam expander. A microcomputer manages the operation time and pause time of a stepping motor constructed to move the movable lens of the beam expander, and in accordance with the duration of an immediately previous pause, limits the number of successive stepping-motor driving actions following the pause time, below a maximum permissible count. When the pause duration is shorter than a threshold value or when the number of successive stepping-motor driving actions reaches the maximum permissible count, the microcomputer starts next driving of the stepping motor after a required waiting time.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[OPTICAL HEAD AND OPTICAL DISK APPARATUS]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316539.html</link>
            <description><![CDATA[There are provided an interference type optical head and an optical disk apparatus, which have a signal amplification effect and which can be manufactured in sizes comparable to conventional optical heads. In an optical disk apparatus that performs signal amplification by making a light, which is used as a reference light without being irradiated on an optical disk and, interfere with reflected light from the optical disk, a corner cube prism that reflects the reference light is mounted on the same actuator as an objective lens. Further, there is provided a movable portion that adjusts the optical path length of the interfering light in accordance with the kind of optical disk being read and the recording layer being read. A wedge prism may be used for the movable portion, and a spherical aberration correction lens and an optical path length adjusting component may be moved integrally. Thus, a stable amplification effect may be obtained while keeping the overall size comparable to conventional apparatuses.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Optical Disc Apparatus]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316538.html</link>
            <description><![CDATA[An optical disc apparatus comprises an overcurrent detector and when the overcurrent detector detects an overcurrent during a recording operation or a reproduction operation and during an operation for controlling a focus of an objective lens, a rotation speed of an optical disc is reduced and an actuator is controlled to cause the objective lens to be in a retracted state under the condition that a disc motor exerts brake force. The objective lens is in the retracted state until the rotation speed of the optical disc becomes equal to or smaller than a predetermined value and when the rotation speed of the optical disc is equal to or smaller than the predetermined value, the objective lens is released from the retracted state.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[RECORDING MEDIUM, OPTICAL DEVICE, AND RECORDING AND REPRODUCING APPARATUS]]></title>
            <link>http://www.freepatentsonline.com./y2009/0316537.html</link>
            <description><![CDATA[A recording medium includes at least one recording layer on which information is recorded by multi-photon absorption, and a servo layer disposed in a laminated direction with respect to the recording layer and having a track for guiding a beam spot of laser light having a first wavelength and a beam spot of laser light having a second wavelength along a scanning trajectory. The servo layer and the at least one recording layer constitute a set of layers, and a plurality of sets of layers is formed in the laminated direction. The servo layer is made of a material having a high reflectance with respect to laser light having a third wavelength for generating a servo signal, and low reflectances with respect to the laser light having the first wavelength and the laser light having the second wavelength.]]></description>
            <pubDate>Thu, 24 Dec 2009 08:00:00 EST</pubDate>
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