Dynamic information storage or retrieval inventions 02/06

20060039245 - Digital and analog audio playback apparatus: A digital and analog audio playback apparatus includes a control unit operable in a first mode, where the control unit enables a driving device to drive rotation of a turntable unit such that a record reading device outputs first audio output data corresponding to analog audio data read from a...

20060039246 - Adaptive system to allow multiple update and correction sessions on an optical data storage card: An adaptive method of managing system configuration in either a rewritable or a write-once optical card with zones formed in combination with an emulated drive buffer to behave as a Direct-access device. In the card medium, zones are formed for recording user data and the capacity of each zone is...

20060039247 - Method for adjusting deviation on seeking bca in optical disk: A method for adjusting a deviation occurring on seeking a burst cutting area (BCA) in an optical disc, including, when an optical disc is loaded into an optical reproducing apparatus, reading data from a predetermined position of the BCA, reading data from the predetermined position of the BCA and first...

20060039248 - Library apparatus, control method and program: Radio tags storing parts identifying information are arranged for the individual constituent modules such as tape drives and conveying robots of the library apparatus. Upon every rise of the apparatus, the conveying robots are moved to positions permitting read of the radio tags arranged on the individual constituent modules. The...

20060039249 - Systems and methods for reading optical-card data: Systems and methods are provided for reading data encoded on an optical card as a series of binary pits formed within optical-card tracks separated by an average optical-card track pitch. A translator and a compact-disc laser head are provided. The compact-disc laser head reads data from a compact disc having...

20060039250 - Method for positioning a scanning probe on a target track of a multi-track storage medium, storage device, scanning device, and storage medium: A method for settling on a target track of a servo system in a storage device (110) comprising a scanning probe (e.g., a scanning probe array system (124)) is disclosed, as well as a corresponding storage device (110). A data format is employed for the data stored in servo fields...

20060039251 - Method and apparatus for controlling layer jumping of pickup head of optical disk drive: The invention discloses a device and a method for controlling the layer jumping of a pickup head, and the device includes a speed detector, a target speedometer, a first adder, a compensator, a gap balance signal calculator, and a second adder; wherein the speed detector receives a combined reflective light...

20060039252 - Method for detecting data defect in optical recording medium: A data signal includes a master signal generated by a master part of an optical pickup head in response to a light beam reflected from the optical recording medium and a side signal generated by a side part of the optical pickup head in response to the light beam reflected...

20060039253 - Optical disk apparatus and method of controlling optical disk apparatus: Disclosed herein is an optical disc apparatus for applying a light beam to a surface of an optical disc and detecting a return light beam from the surface of the optical disc. The apparatus includes a light detector for detecting the return light beam having: a light detector having: a...

20060039255 - Method for configuring composite file structure for data reproduction, and method and apparatus for reproducing data using the composite file structure: A method and apparatus for reproducing data is disclosed. The method and apparatus configures a composite file structure to simultaneously reproduce data recorded in a recording medium and other data recorded in a local storage, and reproduces data using the configured composite file structure. A variety of methods for configuring...

20060039254 - Recording and reproduction apparatus and method, program, and recording medium: A recording and reproduction apparatus and method is disclosed by which the copyright of a content can be protected appropriately and the convenience to a user can be enhanced. When a content stored on a first disk is to be copied on a second disk, the apparatus identifies a first,...

20060039256 - Storing apparatus: In a storing apparatus having a built-in recording medium, which stores program files, if there is no method of securing a free capacity of the recording medium, except for deletion of files, a user may have a feeling of resistance against the deletion of stored program files. Further, in securing...

20060039257 - Method and apparatus for nondestructive sample inspection: An apparatus for inspecting a sample for defects includes a signal generator for generating a signal and a device for splitting the signal into two separate signals which have substantially equal phase and magnitude. A sensor radiates the two signals on the sample and receives the two signals reflected from...

20060039259 - Method and apparatus for controlling a tilt between an optical axis of an optical pick-up head and an optical disc: A method and apparatus for controlling the tilt between the optical axis of an optical pick-up head and an optical disc applied in an optical disc drive is provided. A trapezoidal-wave signal in a radio frequency signal is received, wherein the trapezoidal-wave signal includes a rising edge and a falling...

20060039258 - Method and apparatus of reproducing data recorded on recording medium and local storage: An apparatus for reproducing data recorded on a recording medium includes a pick-up unit, a local storage, and a decoder. The pick-up unit reads main data recorded on the recording medium, and the local storage stores sub data associated with the main data. The sub data may include interactive graphic...

20060039260 - Recording and reproduction apparatus and method, program, and recording medium: A recording and reproduction apparatus and method is disclosed by which the copyright of a content can be protected appropriately and the convenience to a user can be enhanced. When the recording and reproduction apparatus is to move a content stored on a first disk to a second disk, if...

20060039261 - Method for recording data on optical recording medium, device for recording data on optical recording medium, and optical recording medium: It is an object of the present invention to provide a method for recording data in a write-once type optical recording medium which can record data by forming a recording mark having a desired length and reduce jitter of a reproduced signal. The method for recording data in an optical...

20060039262 - Optical disc, recording apparatus and method, and reproduction apparatus and method: An optical disc having a plurality of sectors, each of which includes a plurality of frames. Sub information bit value “0” or “1” is assigned to the plurality of frames constituting a sector, excluding the first and last frames. Edge positions are displaced so that leading/lagging errors appear in accordance...

20060039263 - Audio system with removable digital media player: An audio system with a removable digital media player is presented. The invention comprises a base unit that can receive encoded audio signals, output audio signals to a speaker or other audio output device, and interface with a removable digital media player. The digital media player interface may have the...

20060039264 - Rotating recorder with dual encoder arrangement having eccentricity compensation: A rotating recording device, such as an electron beam recorder, is provided with a dual encoder arrangement. A first encoder is employed as a spindle motor controller and located at a first end of a spindle. A second encoder is mounted at a turntable adjacent to a recording surface and...

20060039265 - Pickup module with coating layer: A pickup module comprises a plurality of optical components along an optical path, wherein at least two of the optical components are provided with coating layers to change a polarization of a light beam and collectively circularly polarize the light beam. The circularly-polarized beam is projected on an optical storage...

20060039266 - Objective lens, light converging optical system, optical pickup apparatus, and recording/reproducing apparatus: An objective lens for recording information on and/or reproducing information from an optical information recording medium, comprises a diffractive structure including ring-shaped diffractive zones on at least one surface thereof. The objective lens is a single lens made of plastic material, at least one surface thereof is an aspheric surface,...

20060039267 - Self-sensing active-damping voice coil: A control circuit creates a self-sensing active-damping voice coil. The control circuit includes a current sensor coupled to a voice coil. A first filter is coupled to the current sensor to create an error voltage that is proportional to the integral of an external acceleration applied to the voice coil....

20060039268 - Method for manufacturing optical disk media of high-to-low and low-to-high reflectance types: A method for manufacturing optical disk media of a high-to-low reflection type and a low-to-high reflection type sets both the reflectance of an unrecorded area of the optical disk medium of the high-to-low reflection type and the reflectance of a recorded pit of the optical disk medium of the low-to-high...

20060039269 - Rewritable data storage medium: The rewritable data storage medium (1) has a rewritable recording layer (9) provided with a tracking structure (8). Said layer (9) has a data recording area (5). An erasable identification mark is present in an identification mark area (4, 4′) other than the data recording area (5). The data recording...

20060028923 - Method and apparatus for dynamic readout decision level adjustment for use in domain expansion reading: The present invention relates to a method and an apparatus for reading a magneto-optical domain expansion recording medium (10) wherein the size of a spatial copy window of a domain copying process is controlled in that a predetermined reading parameter is varied in response to a control information derived from...

20060028924 - Wireless activation system and method: A system and method for wireless activation of a target. A communication device transmits an ID associated with the target to a network operations center. The network operations center provides an activation signal to the communication device. The communication device wirelessly transmits an acoustic activation signal to a nearby activation...

20060028925 - Processing scheme for domain expansion rom media: The present invention relates to a domain expansion storage medium and processing method for processing a substrate (40) of such a storage medium with improved efficiency. The surface structure of a substrate of the storage medium is processed by an ion beam projection lithography using a stencil mask to define...

20060028926 - Substrate, substrate adapted for interconnecting optical elements and optical module: The present invention provides substrate 10, capable of transmitting lights in thickness direction for enhancing usefulness of the substrate. Its object is to provide a substrate adapted for interconnecting optical elements, allowing reduction of number of components leading to miniaturization and low cost, and high-efficient and stable optical coupling leading...

20060028927 - Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method: The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a...

20060028929 - Autofocus actuator: An aoutofocus actuator is provided with a yoke 30 that is constructed so as to receive a coil 20. The yoke 30 includes a plurality of permanent magnets 40 that are positioned so as to face the coil 20 with a space left therebetween. A ring-shaped magnetic member 50 is...

20060028928 - Optical disk apparatus with objective lens protective unit: The present invention provides an optical disk apparatus which has a cover to cover and uncover an objective lens provided in an optical pickup, thus preventing the objective lens from being contaminated with dust, etc. The optical disk apparatus includes an optical pickup conveying, a cover conveying body, and a...

20060028931 - Optical head device: An optical head device includes a laser beam emitting element, a light receiving element, an optical system which guides an emitted light beam from the laser beam emitting element to the optical disk and guides the reflected light beam from the optical disk to the light receiving element, and a...

20060028930 - Optical pickup calibrating apparatus in a disc player and a fabrication method of the same: An optical pickup calibrating apparatus for calibrating the laser emitting direction of an optical pickup supported on a guiding rod is provided. The optical pickup calibrating apparatus has a base and a holder. The holder, which is pivotally assembled to the base, has a trench formed on a sidewall thereof...

20060028932 - Optical pickup device: An optical pickup device comprising a plane-parallel plate beam splitter that reflects a laser beam emitted from a laser beam source, an objective lens that focuses the laser beam from the plane-parallel plate beam splitter so as to irradiate the focused beam into a signal recording medium, a photodetector that...

20060028933 - Method and apparatus for determining position of optical pick-up head: The displacement of a pick-up head along the radial direction of an optical disk is detected, and the absolute position of the pick-up head is determined by the accumulation of the displacement, hence the apparatus knows which area on the optical disk the pick-up head currently stays. After obtaining control...

20060028935 - Optical pickup device, optical disk apparatus, and light-receiving unit: An optical pickup device, comprises a first light source emitting light with a short wavelength; a second light source emitting s light with a wavelength longer than that of the first light source; an optical member guiding the light from the first light source and the light from the second...

20060028934 - Optical pickup head and information recording and/or reproducing device incorporating same: An optical pickup head (100) for a high density recording and/or reproducing device compatible with three types of optical recording media. The pickup head includes a first light source (11a) emitting first beams with a first wavelength, a second light source (12a) emitting second beams with a second longer wavelength,...

20060028936 - Apparatus for managing removable storage media that can be connected thereto, and method, program, and system lsi for managing removable storage media: A storage media management apparatus includes a dividing unit 63e that divides a content into a plurality of content parts, a management information generating unit 63c that generates a plurality of pieces of content management information in correspondence to the plurality of content parts, each piece of content management information...

20060028938 - Method of formatting recording medium, host apparatus, and recording and/or reproducing apparatus: A method of formatting a recording medium, and a host apparatus and/or recording and/or reproducing apparatus which use the method. The method includes providing information regarding a size and/or location of a user data area actually allocated on the recording medium after allocation of the user data area in a...

20060028937 - Sound fast-forward method and device: A sound fast-forward method and device. The method comprises a sound-data classifying process, a play-data transforming process, and a gain treating process. The sound-data classifying process classifies an inputted sound data into at least one first play data and at least one skip data. The play-data transforming process multiplies the...

20060028941 - Information disc recording/playback apparatus, and vibration detection method for information disc recording/playback apparatus: The present invention provides an information disc recording/playback apparatus which includes a track cross detection means (112), a track cross direction detection means (113), a rotation angle detection means (114), and a count means (115), detects the track pitch of a disc, evaluates the vibration amount, or vibration speed, or...

20060028940 - Method and apparatus for controlling power during recording of a visible image in an optical storage medium: A controlling unit 130 of an optical disc recording apparatus judges a failure of a focus servo in accordance with an output signal of a servo circuit 107. When a failure of the focus servo is detected, a laser light irradiating position at the time of the failure is obtained...

20060028939 - Method for controlling read power and open-loop read control device using the same: A method for controlling read power and an open-loop read control device using the same. The open-loop read control device is used in an optical disk writer and includes a memory, a DAC and an amplifier. The optical disk writer includes a pickup head device having a laser diode. When...

20060028945 - Method and device for disc rotation control in an optical storage system based on detected extent of disc warping: A digital signal processing device is provided for disc rotation control in an optical storage system, which is capable of generating a focusing error signal from light that was reflected by an optical disc loaded in the optical storage system. The digital signal processing device includes a low pass filter...

20060028946 - Determining a value of a recording pulse parameter for optical recording: A method is described for setting an optimum recording power level for recording information on an optical record carrier. First a series of test patterns is written on the record carrier with a different recording power. On reading the test patterns, the jitter values of each read signal is determined....

20060028943 - Information disc recording/playback apparatus, and vibration detection method for information disc recording/playback apparatus: The present invention provides an information disc recording/playback apparatus which includes a track cross detection means (112), a track cross direction detection means (113), a rotation angle detection means (114), and a count means (115), detects the track pitch of a disc, evaluates the vibration amount, or vibration speed, or...

20060028944 - Information disc recording/playback apparatus, and vibration detection method for information disc recording/playback apparatus: The present invention provides an information disc recording/playback apparatus which includes a track cross detection means (112), a track cross direction detection means (113), a rotation angle detection means (114), and a count means (115), detects the track pitch of a disc, evaluates the vibration amount, or vibration speed, or...

20060028942 - Optical information storage medium: An optical information storage medium includes a lead-in area, a lead-out area, and a user data area between the lead-in and lead-out areas and in which user data is recorded. Pits are formed in the lead-in area, the user data area, and the lead-out area, and a track pitch in...

20060028947 - Apparatus and method to convert data from a first sector format to a second sector format: An apparatus is disclosed to convert data from a first sector format to a second sector format. The sector format conversion device includes a processor, and microcode which causes the processor to overlay (N) first sectors having a first sector format onto (M) second sectors having a second sector format,...

20060028948 - Apparatus and method to overlay (n) first sectors onto (m) second sectors using a data queue: A method to convert a plurality of sectors from a first sector format to a second sector format is disclosed. The method provides (N) contiguous first sectors comprising a first sector format to a sector format conversion device which includes a buffer and a data queue, where those (N) first...

20060028949 - Method and apparatus for performing blank detection on an optical storage disc: A method for performing blank detection on an optical storage disc includes buffering first information read by an optical storage device from the optical storage disc to generate buffered data, and checking corresponding data of an Error Correction Code (ECC) block in the buffered data to determine if the ECC...

20060028950 - Data recording apparatus, data reproducing apparatus, and data recording/reproducing apparatus: In a data recording apparatus, values of parity bits to be additionally provided every one predetermined length block in data obtained by demodulating the original data are determined so as to satisfy a part of or an entire the predetermined run length limitation rule in ranges of a current predetermined...

20060028951 - Method of customizing audio tracks: A method for creating a customized audio track involves the steps of creating a song template, and then defining insert regions where sounds, vocals, or the like are inserted into the template. The invention includes the steps of generating a list of inserts, and pre-recording or otherwise acquiring a recording...

20060028953 - Gathering data concerning publication usage: Methods and systems for measuring and gathering data relating to publication usage by participants in publication readership studies. Some methods and systems employ portable monitors carried by participants of the studies along with publications fitted with various devices, such as piezoelectric transducers, RFID tags and others devices and circuits....

20060028954 - Illuminator device, non-spherical lens design method, non-spherical lens and projector: Exemplary embodiments of the invention provide an illuminator device including a light source for emitting light to be irradiated to an irradiation plane; a first optical system provided between the light source and the irradiation plane to make the light emitted from the light source into collimated light; and a...

20060028952 - Method for fabricating a molding core for a light guide plate: A method for fabricating a molding core (700) for a light guide plate includes: (a) providing a substrate (500) having a photo-resist layer (600) coated thereon; (b) exposing and developing the photo-resist layer to form a photo-resist pattern (640); (c) coating a nickel film (720) on the substrate; (d) electroforming...

20060028955 - Optical analyzer: There is provided an apparatus capable of switching between a laser that emits light having a wavelength suitable for detecting samples and a laser required for reading traced data, while an analysis optical disc is being traced. In an analyzer in which an analysis disc having a sample to be...

20060028956 - Optical pickup and information processing device: An optical pickup 200 is arranged between optical discs 10A and 10B rotatably supported with the recording surfaces 10Aa and 10Ba facing each other, the optical pickup being movable along the recording surfaces 10Aa and 10Ba. A laser beam of two wavelengths emitted from a semiconductor laser 201 is respectively...

20060028957 - Optical system for spatially controlling light polarization and method for manufacturing the same: An optical system for spatially controlling light polarization, and method for manufacturing the same, includes a light source for generating a light beam of a designated wavelength, a beam shaper for splitting the light beam generated from the light source into a plurality of partial beams, and a polarization controller...

20060028959 - Aberration correction apparatus, and control apparatus, control method and control program of optical pickup: An aberration correction apparatus includes an optical pickup having a liquid crystal panel which gives a phase difference to a light beam emitted from a light source unit and irradiated onto a recording medium and corrects an aberration occurring to the light beam by a tilt of the recording medium,...

20060028958 - Alignment apparatus in an optical pickup device: An alignment apparatus in an optical pickup device is provided. It comprises a laser diode, a first coupling carrier, an optical assembly, a signal detector, a record medium and a second coupling carrier. The first coupling carrier bears the laser diode while the second coupling carrier bears the optical assembly...

20060028961 - Illumination system capable of eliminating laser speckle and projection system employing the same: Provided are an illumination system capable of eliminating laser speckle and a projection system employing the illumination system. The illumination system includes a laser light source having at least one laser, and a first diffractive optical element to divide a laser beam emitted from the laser light source into a...

20060028962 - Method and system for encoding and detecting optical information: An optical storage medium designed to be readable with light of a pre-determined wavelength, the optical storage medium comprising: a substrate; and a plurality of optically detectable marks imprinted on the substrate, each of the plurality of optically detectable marks exhibiting: a predetermined length; a width less than the pre-determined...

20060028960 - Optical device for monitor and optical pickup apparatus: A monitor optical device has a first region and a second region. The first region transmits part of light beam emitted from a light source to introduce the transmitted light beam to a monitor device. The second region reflects the remainder of the light beam to introduce the reflected light...

20060028963 - Method and system for generating a feedback signal in optical disc drives: A method for generating a feedback signal in optical disc drives is disclosed. Firstly RF signal is generated by a pickup head and coupled to a converter to generate a digital signal. Then a detector generates a plurality of pseudo-jitter according to the digital signal. Thereafter a calculator receives the...

20060028966 - Braille atomic storage at room temperature and open air: A process of providing storage for data on a storage medium includes precisely placing an atom onto a surface of the storage medium as an interstitial impurity, and moving the atom to a specific storage site on the storage medium as a stored bit of data. A storage medium includes...

20060028964 - Compensating for variations in the temperature of a probe of a storage device: A storage device includes a storage medium and a probe to form perturbations in the storage medium. The storage device further includes a circuit to cause heating of the probe to perform an access operation, the circuit to compensate for variations in a temperature of the probe in performing the...

20060028965 - Elliptical-shaped nano-scale tip: A nano-scale tip for use on a probe includes a first width and a second width. The first width of the tip is greater than the second width and the varying sized widths form a substantially elliptical shape....

20060028967 - Optical disk: An optical disk comprising two layers including a signal recording layer and an image recording layer further comprises a metal reflective layer formed on a surface of the image recording layer on the incidence side of laser light. The image recording layer is capable of forming a visible image in...

20060028968 - Secure optical information disc: A secure optical data disc comprising an electronic article surveillance tag embedded within a layered disc structure comprising first and second substrates is disclosed. The tag is placed within a non-readable zone (i.e., one that does not have data tracks) of the secure disc. Layer-wise, the tag is either sandwiched...

20060028972 - Data recording and reproducing method for multi-layered optical disk system: A data recording and reproducing method for an optical disk data storage system to record data compressed at different data compression rate according to an operator's specification, and to reproduce the recorded data by decompressing. According to the operator's indication, the data is recorded at certain data compression rate in...

20060028969 - Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof: An information recording medium comprises a substrate, a second recording layer, a second light transmitting layer, a first recording layer for recording different information from that to be recorded in the second recording layer, and a first light transmitting layer. The second recording layer is formed with a continuous second...

20060028970 - Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof: An information recording medium comprises a substrate, a second recording layer, a second light transmitting layer, a first recording layer for recording different information from that to be recorded in the second recording layer, and a first light transmitting layer. The second recording layer is formed with a continuous second...

20060028971 - Optical recording medium: An optical recording medium has a plurality of information layers which are placed between a substrate and an optically transparent cover layer with optically transparent spacer layers interposed between the information layers. From among the plurality of information layers, the information layer excluding the information layer arranged closest to the...

20060028973 - Recording medium, method and apparatus for recording, and method and apparatus for reproducing: In a recording medium which is circular and has first and second recording layers, the first and second recording layers each include one or more first tracks extending concentrically or spirally and one or more second tracks extending concentrically or spirally, each of the one or more first tracks and...

20060028975 - Optical information recording medium and method of producing a master and stampers therefor: New and unobvious techniques for manufacturing optical information recording media (such as a phase-change type optical disc), including techniques for producing a master and stampers for producing the optical information recording media, are provided. Exposure light beams are controlled to form information recording tracking tracks and phase pits reliably and...

20060028974 - Optical information recording medium, reproduction method and optical information processing device using the same: An optical information recording medium of the present invention, a reproduction method using the optical information recording medium, and an optical information processing device using the optical information recording medium, each of which optically reproduces recorded information by irradiating a light beam, include: a substrate on which a bumpy pit...

20060023574 - Interface system: A data transfer interface is provided which enables a plurality of data processing devices to access a single data storage drive. The data processing device includes a switch connected to the plurality of data processing devices and the data storage drive. A control device drives the switch so that only...

20060023573 - Method and system for enhanced optical medium reads: An optical drive reads information from an optical medium by measuring the reflectivity of the optical medium to determine the type of optical medium, setting read parameters associated with the determined type and attempting to read identification information from the optical medium to verify the optical medium type. If the...

20060023575 - Disk tag reading device: A disk tag reading device is a device for reading contents of an electronic tag attached to a disk. A holder which is inserted into a central hole of the disk configures an antenna for communicating with the electronic tag attached to the disk....

20060023576 - Optical disk device and track-on method thereof: An optical disk device includes a pickup head, a thread motor, and a drive controller, and a thread drive IC. The drive controller supplies directed voltage to the thread drive IC. The thread drive IC in response supplies drive voltage to the thread motor, which moves the pickup based on...

20060023578 - Optical lens, focusing lens, optical pickup device as well as optical recording and reproducing device: With an optical lens made of a Y3Al5O12 monocrystal material of a cubic crystal structure, an optical lens having a high refractive index and a low optical absorption property in the range from an ultraviolet light wavelength to a visible light wavelength is provided, and using this optical lens, an...

20060023577 - Optical recording and reproduction method, optical pickup device, optical recording and reproduction device, optical recording medium and method of manufacture the same, as well as semiconductor laser device: An optical recording and reproduction method, optical pickup device, and optical recording and reproduction device are provided, in which an optical recording medium is irradiated with near-field light to perform recording and/or reproduction, and wherein two or more recording and reproduction beam spots are positioned in a recording and reproduction...

20060023579 - Optical disk drive: An optical disk drive includes: a light source for producing a light beam; an objective lens for converging the light beam; an actuator for moving the objective lens with respect to an optical disk; a converging state detecting section for generating a focus error signal representing a converging state of...

20060023580 - Apparatus and related method for generating a tracking error signal in an optical disc drive: The present invention discloses an apparatus for generating a tracking error signal in an optical disc drive. The disclosed apparatus includes: an analog-to-digital conversion module for receiving a plurality of analog signals generated by accessing an optical disc and for converting the plurality of analog signals into a plurality of...

20060023581 - Optical disk recording device and pickup device: The invention provides an effective method for improving accuracy of recording, tracking, and reproduction in a real-time correction in which correction is performed simultaneously with recording. A beam spot for recording, beam spots for reproduction, and beam spots for tracking are formed by branching a laser beam outputted from a...

20060023582 - Optical pickup device and optical disk device: An optical pickup device has first emitting section emits first laser light, second emitting section emits second laser light, objective lens focuses first and second laser lights and emits focused laser lights to information storage medium, splitter section receives reflection lights of first and second laser lights and splits lights,...

20060023583 - Channel optimization metrics: A recording system, such as a magnetic or optical recording system, employs optimization metrics that are independent of a target partial response for equalization of a signal read from a recording channel. The optimization metrics employ samples adjacent to codeword boundaries of codewords representing encoded data, such as servo data,...

20060023586 - Optical disk, apparatus and method for recording and reproducing information, and apparatus and method for reproducing information: When an information recording and reproducing apparatus records pieces of user data on a write-once optical disk on which information can additionally be written, the information recording and reproducing apparatus performs a closing process so that the pieces of user data can also be reproduced with the reproduction-only apparatus. The...

20060023588 - Optical information recording method, optical information recording and reproducing device, and optical information recording medium: A plurality of types of recording pulse control rules for which the recording pulse waveform is determined according to the information signals to be recorded are stored in advance in an optical disk. When recording to the optical disk, information is recorded using a recording pulse where, due to the...

20060023584 - Optical information storage apparatus and optical information storage system: The present invention provides an optical information storage apparatus incorporates in a housing: a medium storing section in which optical storage media are stored; an information access section that makes an information access to the optical storage medium; and a medium moving section that moves the optical storage medium between...

20060023587 - Reproducing and/or recording apparatus and method determining whether sessions are open for a medium for reproduction and/or recording: An optical disc player and method reproducing data from an optical disc. The optical disc player may include a data reproducing module irradiating a laser signal onto the optical disc to reproduce a predetermined radio frequency signal corresponding to the data, and a controller determining that a reproduction area of...

20060023585 - Reproducing apparatus: A reproducing apparatus includes a reproduction unit configured to reproduce content data from a recording medium, a management unit configured to classify a plurality of content data recorded on the recording medium into a plurality of groups, and a control unit configured to, responsive to stopping reproducing content data, output...

20060023589 - Optical disk device recording data on a recordable or rewritable optical disk by setting a recording velocity and a recording power for each of zones on an optical disk: An optical disk device records data on a recordable or rewritable optical disk. The optical disk device comprises zone storing means for preliminarily storing locations of a plurality of zones set by dividing a recordable or rewritable area of the optical disk from an inner periphery thereof to an outer...

20060023590 - Optical disc recording method and information recording and reproducing apparatus: An optical disc recording and reproducing apparatus are provided in which even if a focusing error signal fluctuates suddenly by surface deflection or an obstacle such as scratch or dust on the surface of an optical disc, an effective recording laser power does not decrease but proper recording, erasure, and...

20060023592 - Optical disk device recording data on a recordable or rewritable optical disk by setting a recording velocity and a recording power for each of zones on an optical disk: An optical disk device records data on a recordable or rewritable optical disk. The optical disk device comprises zone storing means for preliminarily storing locations of a plurality of zones set by dividing a recordable or rewritable area of the optical disk from an inner periphery thereof to an outer...

20060023591 - Test-write method, information recording method, and information recording apparatus: A test-write method for accurately and quickly determining recording conditions, and an apparatus suitable therefor. In a 2T-based strategy, recording pulse conditions are determined by separately test-writing an even-number length mark and an odd-number length mark, and then the relative positions of the even-number length mark and the odd-number length...

20060023594 - Evaluation disc: An evaluation disc for use in evaluating a pickup head of an optical disc device, including: an inner circular region: an intermediate circular region; and an outer circular region; wherein the outer circular region and the intermediate circular region are formed on the outer side of the inner circular region;...

20060023593 - Optical disc drive apparatus and method: An optical disc drive is has a voice coil motor that carries and moves focal optics to focus a laser beam onto an optical disc The voice coil motor is responsive to input signals which are based on a calibrated temperature. A temperature measurement is made at the voice coil...

20060023596 - Information recording medium, information recording/reproducing apparatus and information management method: There is provided an information management apparatus which can make it impossible to read out data recorded on a write-once type recordable optical disk as required and the usefulness thereof is enhanced. When recorded data is destroyed on the write-once type recordable optical disk, data modulated by a modulation system...

20060023597 - Method and apparatus for recording data on and reproducing data from a recording medium and the recording medium: In an embodiment of the method of recording data on a recording medium, a management information entry is recorded in a temporary defect management area of the recording medium. The management information entry indicates a portion of a user data area of the recording medium, and the management information entry...

20060023595 - System and method for optical media information storage life tracking: Expiration information stored on an optical medium is applied to determine an expiration date of the optical medium that provides a predetermined reliability of information archived on the optical medium, such as a predetermined acceptable defect level of the information at the expiration date. An expiration engine associated with an...

20060023600 - Method and apparatus for controling access to storage media: A method and apparatus for preventing copying of data from optical disks. A locus on optical disk is initially read to produce a signal and is then re-read by a reader to produce a second signal. The signal detected upon re-reading is different from the signal that is detected upon...

20060023598 - Method and apparatus for protecting against copying of content recorded on optical recording media: Methods and apparatuses for protecting against copying of content recorded on optical recording media are provided. An area of an optical recording medium is designated to be ignored by a standards-compliant optical media player reproducing content recorded on the optical recording medium. Unreadable data is written to the designated area...

20060023599 - Optical disk player: An available term of use of the player is set in terms of the number of dates or a playing time. If it is determined by a lock-setting determining unit that the player is lock-set when an optical disk is loaded, the player is lock-released by a lock releasing unit....

20060023601 - Optical recording medium, information processing device using the recording medium, and data recording method: The present invention is directed to a data recordable optical disc (2), wherein buffer areas for random access (Data Run-in DRi, Data Run-out DRo) for random access are respectively disposed before and after respective blocks (BLK, BLK1, BLK2), whereby when recording of new block is started, the block is recorded...

20060023602 - System for locking a clock onto the frequency of data recorded on a storage medium: A circuit locks onto a frequency of data encoded on a medium, taking frequency variations in the physical travel of the medium into account. The circuit includes a disk locked clock (DLC) circuit having a synthesizer operating under digital control based on a feedback signal to produce a servo reference...

20060023603 - Address mark detection: A recording system, such as a magnetic or optical recording system, employs an address mark (AM) detector that searches for an address mark pattern that is augmented by one or more bits of a preamble field so that a false detection rate is reduced. In one case, the address mark...

20060023604 - Signal processing apparatus and method for recording medium: There is provided an apparatus which can flexibly cope with both of a signal reproduction process for a region with high recording density and a signal reproduction process for a region with low recording density. The apparatus includes a waveform equalizing circuit which subjects data read out from an optical...

20060023605 - Semiconductor laser device and optical pickup device: A semiconductor laser device includes: a semiconductor laser chip which is composed of a semiconductor substrate and a plurality of semiconductor layers stacked on an element formation face of the semiconductor substrate and which outputs an irradiation light for irradiating an optical disk; and a light receiving element which receives...

20060023606 - Ferroelectric probe storage apparatus: An apparatus comprises a ferroelectric storage medium, and a transducer for reading data from the ferroelectric storage medium and for writing data to the ferroelectric storage medium, wherein the transducer includes a substrate and a probe coupled to the substrate, wherein the probe includes a conductive element and a bilayer...

20060023607 - Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method: The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a...

20060023609 - Optical pickup apparatus, optical recording and reproducing apparatus and optical recording and reproducing method: Then, in an optical pickup apparatus and an optical recording and reproducing apparatus that can suitably applied to an optical recording medium including an optical recording medium having a BD (Blu-ray Disc) type arrangement, it is possible to maintain satisfactory recording and reproducing characteristics by irradiating light with a beam...

20060023608 - Optical pickup device: An optical pickup comprises: first and second semiconductor lasers (11, 14); a hologram element (17) for diffracting light reflected by an optical information recording medium (9 or 12); and a plurality of photodetectors (18-23). The hologram element (17) has two or more different diffraction regions. The plurality of photodetectors (18-23)...

20060023610 - Optical pickup device and optical disk device: An optical pickup device has first emission unit emits first laser beam, second emission unit emits second laser beam whose wavelength is different from that of first laser beam, to same optical axis to first laser beam is emitted, objective lens collects first and second laser beams emitted from first...

20060023611 - Compound optical element and optical pickup apparatus: The present invention provides a compound optical element for an optical pickup apparatus, including: an aspherical lens and a resin layer arranged on at least one optical surface of the aspherical lens and having a phase structure, wherein the compound optical element satisfies a predetermined condition for optical path lengths...

20060023612 - Reducing variations in density of perturbations on a storage medium: A method of storing data in a storage device having a probe to form perturbations in a storage medium of the storage device includes receiving input write data bits and encoding the input write data bits to form coded write data bits. Perturbations are formed in the storage medium by...

20060023613 - Storage device having information to identify defective storage region: A storage device includes a storage medium and a probe to read from and write to the storage medium. The storage medium has a plurality of storage regions, where each storage region contains information to identify whether another storage region is defective....

20060023614 - Sense amplifier for static random access memories: A sense amplifier for static random access memories is disclosed. The sense amplifier includes a pair of inverters cross-coupled to each other. The sense amplifier also includes means for equalizing the charges within the pair of inverters before performing a sense operation, and means for sensing a current difference between...

20060023616 - Optical disc unit, optical disc recording method, and optical disc: An optical disk in which data is interleaved and recorded in physically discontinuous interleaved units and a size of the interleaved unit is not less than a product of a maximum value of a jumping interval and a minimum value of the reproduction rate Vo of the data....

20060023615 - Optical disk and information playback apparatus: An optical disk according to an example of the present invention includes the first and second recording layers on which pieces of information can be recorded by undergoing a change in properties when irradiated with a laser beam. The first recording layer has the first reflectance characteristic in which the...

20060023617 - Optical information recording medium and method of manufacturing the same: A dye or dyes are selected, which are capable of absorbing a laser beam with a wavelength of 350 to 500 nm and are capable of recording sub-information using a laser beam with a wavelength of 640 to 680 nm or 750 to 830 nm. An optical information recording medium...

20060023620 - Optical information recording medium: In an optical information recording medium, a first sub-information area, a second sub-information area, and the main information area are provided in order from the center of the optical information recording medium in an outer peripheral direction. A first groove is formed in the first boundary area between the first...

20060023618 - Optical information recording medium and production method therefor, production device: The present invention relates to an optical information recording medium comprising a signal substrate that has at least a signal face formed on one of the faces thereof with a center hole, a center substrate that is placed in a manner so as to seal the center hole and also...

20060023619 - Optical record carriers: An optical record carrier for use in an optical scanning device, the optical record carrier comprising an entrance face (5), an information layer (3) and at least one transparent layer (2), located between the entrance face and the information layer, through which data is to be read from the information...

20060023621 - Information storage medium, recording/reproducing apparatus and recording/reproducing method: An information storage medium, a recording/reproducing apparatus therefor, and a recording/reproducing method thereof to manage last recorded addresses of data. The recording apparatus includes: a write unit which records data on an information storage medium including a lead-in area, a data area and a lead-out area, wherein the data area...

20060023622 - Recording medium, method for recording control information in the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium using the same: A recording medium, a method for recording control information in the recording medium, and a method and apparatus for recording/reproducing data in/from the recording medium using the same are disclosed. The recording medium includes a data area, and a management area for recording control information capable of identifying write compatibility...

20060023623 - Optical disk and information playback apparatus: In an example of the present invention, an optical disk includes groove tracks and land tracks which are alternately arranged in the radial direction of the disk. A track width of each of the groove tracks is set at 60% to 70% of a track pitch indicating the distance between...