Abstract: A timepiece apparatus (10) comprising: a rotatable shaft (30) operatively connected to a magnet (40); a magnetic detection device (50) to detect a magnetic field of the magnet (40) when proximal to the magnetic detection device (50); wherein if a predetermined sequence of magnetic fields is detected by the magnetic detection device (50), a predetermined operation is performed.

Abstract: Watch comprising a mechanism (50) for driving a device (1) that displays a time-dependent value, this drive mechanism (50) itself being driven by the movement of the watch, this watch also having at least one first correction element (42) acting on the display device (50) via a clockwork mechanism (2) of the drive mechanism (50), and at least one second correction element (48) acting directly on the device (1) that displays the time-dependent value, the watch being characterised in that the drive mechanism (50) is arranged so as to drive the device (1) that displays a time-dependent value in both directions when the first correction element (42) is operated, and so as to be overridden when the second correction element (48) is operated, acting directly on the device (1) that displays a time-dependent value.

Abstract: The invention concerns a watch comprising a middle part (12) including a top face (32) arranged for receiving a polygonal bezel (16) made of a first material. The corners of the bezel (16) are truncated and the middle part (12) is fitted with angular elements (40a, b, c, d) made of a second material, secured to the top face (32) thereof, and arranged so as to be substituted for the truncated corners of the bezel (16) when the latter is mounted on the middle part (12).

Abstract: A method and apparatus for controlling a focus of an optical disk in an optical disk recording/reproducing apparatus are provided. A method of controlling focusing onto an optical information storage medium having a plurality of data layers during an interlayer jump by moving an object lens up and down includes receiving a focus jump command for a focus jump from a current data layer to a target data layer, performing spherical aberration correction on the target data layer, holding a focusing servo with respect to the current data layer, and performing the focus jump to the target data layer in which the performing of the focus jump includes applying an acceleration pulse to a focus control signal for controlling driving of the object lens, and terminating the application of the acceleration pulse when the level of a sum signal resulting from the summation of the amplitude of light reflected from the optical information storage medium and collected by a light detector is less than a predetermined level.

Abstract: According to one embodiment, an optical disc apparatus provides a signal processing circuit that obtains a reflection amount of reflection light from a recording layer of a recording medium from a sum of outputs from a photo detector when moving the objective lens so as to make a distance between the recording layer of the recording medium and the lens coincide with a focal length of the lens, and limits a variation amount of numerals used as the reflection amount within a predetermined range when correcting a servo signal of the outputs from the photo detector, which is used to obtain coincidence between the distance between the recording layer of the recording medium and the lens and the focal length of the lens with a formula normalized servo error signal=servo error signal before normalization/reflection amount.

Abstract: A content processing apparatus includes a CPU, and when a recording mode is selected, the CPU writes content data to a data area of an external memory. Management information recorded in a management area of the recording medium in order to manage the data recorded in the data area is updated in association with the writing processing. A distribution of a copying area formed across the data area and an internal memory is controlled by a controller such that a capacity of the data area is increased, a distribution ratio to the data area is increased. The management information recorded in the management area is copied in the copying area when a specific mode is selected. When a deleting operation is performed in the specific mode, a part of the information corresponding to desired content data recorded in the data area out of the management information recorded in the management area is deleted.

Abstract: An object of the present invention is to appropriately cope with a tears type mark occurring in, for example, an organic dye write-once disk. A playback signal distortion compensation method is a method for compensating a distortion in a playback signal of data recorded in an optical disk, and includes the steps of: specifying part of a playback signal of a mark having a length equal to or larger than a predetermined length; and, if a specific amplitude level value that will not appear in an ideal signal is detected in the specified part of the playback signal at specific sampling timing, setting the amplitude level values detected at the specific sampling timing and predetermined sampling timing alike to predetermined level values based on the ideal signal. Owing to the compensation of the amplitude levels, a transition of amplitude level values in the signal can be approached to a transition thereof in the ideal signal. Consequently, degradation of a bit error rate can be hindered.

Abstract: An apparatus and method for recording and/or reproducing data on a disc are provided using padding information, and a corresponding information storage medium. The recording method includes recording a recording unit block in which invalid data is padded in part of the block and recording padding information indicating that the invalid data is included. According to the method, a disc drive becomes able to distinguish valid data from invalid data in an error correction block such that reliability of reproduction increases and stability of the system is improved.

Abstract: An apparatus and method for recording and/or reproducing data on a disc are provided using padding information, and a corresponding information storage medium. The recording method includes recording a recording unit block in which invalid data is padded in part of the block and recording padding information indicating that the invalid data is included. According to the method, a disc drive becomes able to distinguish valid data from invalid data in an error correction block such that reliability of reproduction increases and stability of the system is improved.

Abstract: An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, or partially overlap each other and lock out use of the overlapped portion. Therefore, when an OPC area of one information storage layer performs OPC, this OPC does not affect another information storage layer.

Abstract: An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC areas in odd-numbered and even-numbered information storage layers are disposed not to face each other and not to contact each other, or partially overlap each other and lock out use of the overlapped portion. Therefore, when an OPC area of one information storage layer performs OPC, this OPC does not affect another information storage layer.

Abstract: A DSP (32) of a disc recorder (100) includes an identification information obtaining portion (321) for obtaining type identification information stored in an optical disc (a DVD-R) (2) for identifying a manufacturer and a type of the optical disc, a type memory portion (326) for storing a plurality of type identification information in advance, a type deciding portion (322) for deciding whether or not the obtained type identification information matches any one of the plurality of type identification information stored in the type storing portion (326), a parameter obtaining portion (323) for obtaining strategy parameters stored in the optical disc (2) if the type deciding portion decides that the former type identification information does not match any one of the latter type identification information, a parameter correcting portion (324) for correcting the obtained strategy parameter, and a recording condition setting portion (325) for setting recording conditions for the optical disc (2) based on the corr

Abstract: An apparatus and method for recording and/or reproducing data on a disc are provided using padding information, and a corresponding information storage medium. The recording method includes recording a recording unit block in which invalid data is padded in part of the block and recording padding information indicating that the invalid data is included. According to the method, a disc drive becomes able to distinguish valid data from invalid data in an error correction block such that reliability of reproduction increases and stability of the system is improved.

Abstract: A write once disc includes a defect management area that is present in at least one of a lead-in area and a lead-out area; a temporary defect management area that is present in at least one of the lead-in area and the lead-out area; and a drive & disc information area that is present in at least one of the lead-in area and the lead-out area. Information regarding the locations of temporary defect information and temporary defect management information is recorded in the drive & disc information area, the temporary defect information and temporary defect management information, which includes drive & disc information, are recorded in the temporary defect management area, and temporary defect information and temporary defect management information, which are lastly recorded in the temporary defect management area, are recorded in the defect management area for disc finalization.

Abstract: An apparatus and method for recording and/or reproducing data on a disc are provided using padding information, and a corresponding information storage medium. The recording method includes recording a recording unit block in which invalid data is padded in part of the block and recording padding information indicating that the invalid data is included. According to the method, a disc drive becomes able to distinguish valid data from invalid data in an error correction block such that reliability of reproduction increases and stability of the system is improved.

Abstract: An apparatus and method for recording and/or reproducing data on a disc are provided using padding information, and a corresponding information storage medium. The recording method includes recording a recording unit block in which invalid data is padded in part of the block and recording padding information indicating that the invalid data is included. According to the method, a disc drive becomes able to distinguish valid data from invalid data in an error correction block such that reliability of reproduction increases and stability of the system is improved.

Abstract: An apparatus and method for recording and/or reproducing data on a disc are provided using padding information, and a corresponding information storage medium. The recording method includes recording a recording unit block in which invalid data is padded in part of the block and recording padding information indicating that the invalid data is included. According to the method, a disc drive becomes able to distinguish valid data from invalid data in an error correction block such that reliability of reproduction increases and stability of the system is improved.

Abstract: A write once disc includes a defect management area that is present in at least one of a lead-in area and a lead-out area; a temporary defect management area that is present in at least one of the lead-in area and the lead-out area; and a drive & disc information area that is present in at least one of the lead-in area and the lead-out area. Information regarding the locations of temporary defect information and temporary defect management information is recorded in the drive & disc information area, the temporary defect information and temporary defect management information, which includes drive & disc information, are recorded in the temporary defect management area, and temporary defect information and temporary defect management information, which are lastly recorded in the temporary defect management area, are recorded in the defect management area for disc finalization.

Abstract: A BCA (Burst Cutting Area) code including a unique disk code indicating the type of a disk is written in a BCA code area of the disk. If the disk is mounted into the optical disk player, the optical disk player reads data written in the BCA code area, extracts the disk code contained in the read data, and confirms the type of the disk corresponding to the extracted disk code by retrieving a disk code table in which disk codes corresponding to the types of disks are mapped.

Abstract: An ADIP decoder for decoding address in pre-groove (ADIP) of a wobble of an optical disc, has: a band pass filter that filters a wobble signal having a period corresponding to the wobble; a wobble PLL circuit that divides a frequency of a phase-locked clock signal in response to an input of the filtered wobble signal, and outputs a locked wobble signal; a timing generating circuit that generates a sampling timing signal based on the clock signal; an analog to digital converter that converts the filtered wobble signal into a digital signal in synchronization with the sampling timing signal; and an ADIP decoding circuit that counts a clock of the locked wobble signal with a counter, holds an address and one of a minimum amplitude value and a maximum amplitude value of the digital signal for each counter period, the address corresponding to a wobble clock count value where the digital signal has one of the minimum amplitude value and the maximum amplitude value, and that decodes the ADIP based on a distribution

Abstract: A disk processing apparatus used for cleaning, mending or damaging a disk includes a first arm and a second arm to define a clamping structure. The front end of the second arm is a detachable tongue plate, and the first arm and the tongue plate separately or individually have at least one processing unit. If the disk is placed in the disk processing apparatus and contacted with the processing unit, different materials and properties of a surface of the processing unit can clean, mend or damage the disk. If it is necessary to change the processing unit, the tongue plate of the second arm can be removed to facilitate the change of the processing unit.

Abstract: A media distribution system is provided in which a primary means of transport for digital media is through a device with housing shaped as an optical disc and insertable into various current and future optical disc drive devices. Media travels from different digital sources such as a personal media library and other networked resources to embedded memory on the optical disc shaped device via a capable personal computer or electronic device. This media is then able to be presented in the most appropriate format in a number of different types of current and legacy devices with optical drives such as CD audio devices and DVD players.

Abstract: A method and apparatus for accessing one or more memory devices using an optical multi-mode signal. The method includes providing an optical multi-mode signal including a first mode and a second mode and transmitting the optical multi-mode signal via an optical multi-mode bus to the one or more memory devices. The first mode is used to perform a first access to the one or more memory devices and the second mode is used to perform a second access to the one or more memory devices.

Abstract: A method for holographic information storage and retrieval is disclosed. The method supplies a holographic data storage system comprising a light source and a holographic data storage medium and provides information to the holographic data storage system. The method generates a reference beam using the light source, forms a data beam comprising a data image and an orientation image, wherein the data image comprises all or a portion of the information. The method then generates a hologram using the data beam and the write reference beam, and encodes the hologram in the holographic data storage medium to form an encoded holographic data storage medium.

Abstract: In an optical disk apparatus having an exclusive RF detector plane mounted therefore, as a method of obtaining a synthesized readout signal based on band-synthesis is used in order to obtain a readout signal having a good S/N ratio, a waveform distortion easily caused by a delay time difference or a sensitivity difference in the playback at higher speeds can be prevented. In order to correct the delay time difference or a sensitivity error in two channels of RF signals to be band-synthesized according to the selection of the sensitivity or playback speed, a delay time controller, a sensitivity controller, and a selector for selecting a combination method are engaged. An information holder for such control or selection is also provided.

Abstract: The liquid crystal element includes a pair of transparent substrates, a liquid crystal arranged between the substrates, a diffraction pattern including concentric diffraction electrodes formed on one substrate, and a phase shift pattern including concentric phase shift electrodes formed on the other substrate. The diffraction pattern includes a first region being of a constant range in a radial direction from a center and having a wide electrode interval, a second region being arranged on the outer side of the first region and having a narrow electrode interval, and a third region being arranged on the outer side of the second region and including a single diffraction electrode. An additional electrode facing the phase shift electrode is arranged in a gap between the diffraction electrodes in the first region.

Abstract: A hybrid objective lens has a refractive lens and a diffractive optical element constructed by plural coaxial ring-shaped zones on at least one optical surface thereof. When n1, n2 and n3 each is a diffraction order of a diffracted ray having a maximum light amount among diffracted rays of each of first, second and third light flux having wavelength ?1, ?2 and ?3 when respective light flux comes to be incident into the diffractive structure respectively, the following formulas are satisfied: |n1|>|n2|, and |n1>|n3|, and the hybrid objective lens converges a n1-th, n2-th and n3-th order diffracted ray of the first, second and third light flux onto an information recording plane of each of the first, second ant third optical information recording medium respectively so as to form an appropriate wavefront within respective prescribed necessary image side numerical apertures.

Abstract: To provide an objective lens and an optical pickup device which can thin the objective lens and a device on which the objective lens is mounted, and which can prevent that the pitch of the diffraction grating at the outer periphery of the objective lens becomes too small in the manufacturing procedure and so it becomes difficult to manufacture the Fresnel lens or which does not require a high-grade fine processing technique in order to minimize the pitch of the diffraction grating, in an objective lens which condenses a laser light emitted from a light source to irradiate on an optical disk, the outer periphery on the side surface of the objective lens in which the laser light is incident is formed by a refractive lens portion 7a and the inner periphery thereof is formed by a Fresnel lens portion 7b.

Abstract: An objective lens actuator includes a plurality of objective lenses, a first lens holder on which the plurality of objective lenses are mounted, and a drive mechanism that drives the first lens holder. At least one of the plurality of objective lenses is mounted on the first lens holder while being held by the second lens holder. Formed on the second lens holder are a slide part which slides the second lens holder with respect to the first lens holder at a time of assembly, and a projection arranged outward of the slide part and protruding toward the first lens holder with the second lens holder being mounted on the first lens holder. The lens holder has a groove formed therein where the projection is securely adhered.

Abstract: An optical disc apparatus in accordance with the present invention includes: a plurality of light sources; an optical system which has at least an objective lens that condenses light beam emitted from the light sources on a recording layer of an optical disc and a collimator lens that is arranged between the light sources and the objective lens; a lens tilting mechanism which tilts the objective lens; a collimator lens driving mechanism which moves the collimator lens along an optical axis direction; and a most appropriate setting deciding portion which decides in a prescribed timing a most appropriate setting about position of the collimator lens and tilting of the objective lens while changing the position of the collimator lens and the tilting of the objective lens utilizing the collimator lens driving mechanism and the lens tilting mechanism.

Abstract: Two types of objective lenses are arranged in a radial direction of an optical disc, a light flux reflecting/transmitting member arranged with first and third optical films for reflecting the beam light and a second optical film for reflecting or transmitting the beam light is arranged on the side opposite to the disc of the objective lenses. The beam light emitted from the laser diodes is entered to the light flux reflecting/transmitting member in a tangential direction of the disc. The beam light entering the light flux reflecting/transmitting member is reflected with the first optical film to be bent in the radial direction, and the BD beam light is reflected with the second optical film so as to enter to the BD objective lens, and the DVD/CD beam light is transmitted through the second optical film, and reflected with the third optical film so as to enter the DVD/CD objective lens.

Abstract: An objective lens optical system includes a light beam splitting element and an objective lens and is configured to focus a light beam with a wavelength ? on an information recording surface of a first optical recording medium as a dual/double layer disc having a transparent substrate with a thickness t1 and to focus a light beam with a wavelength ? on an information recording surface of a second optical recording medium as a dual/double layer disc having a transparent substrate with a thickness t2 (t1<t2). The light beam splitting element is sectioned into regions that are designed to focus a light beams on an information recording surface of either one of the first optical recording medium and the second optical recording medium. Either one region has a negative or positive power so that a light focus position of a light beam having passed through the first region by the objective lens and a light focus position of a light beam having passed through the second region by the objective lens are different.

Abstract: According to one embodiment, a device which identifies the types of recording media different in recording density including, a light source which outputs light at a predetermined wavelength, a photodetector which detects reflected light from one information recording layer of a recording medium having at least two information recording layers provided with a first recording density or a second recording density higher than the first recording density, a lens which condenses the light from the light source to present a minimum spot on one of the information recording layers of the recording medium, and a signal processing circuit which acquires a component containing characteristics peculiar to the information recording layer of the recording medium having the second recording density out of the reflected light detected by the photodetector.

Abstract: A rectangular image to be imaged on a flat curved surface is received. The rectangular image is converted to a curved image corresponding to the flat curved surface. The curved image is halftoned. The curved image as halftoned is imaged on the flat curved surface.

Abstract: The invention provides an optical disc and a registering method for labeling on a label side of the optical disc. More particularly, the label side has a plurality of turns of wobbled grooves connected in series to form a spiral track. The turns of the wobbled grooves are then to provide a registering reference.

Abstract: The present invention discloses a method for retransmitting a data sequence according to channel condition in a wireless communications network. The method comprises transmitting a first transmitting signal representing the data sequence using a first set of beamforming weighting vectors generated according to a first channel condition, receiving a request for re-transmitting the data sequence, wherein the first transmitting signal suffers from unrecoverable errors, computing a re-transmission function according to a second channel condition, and transmitting a second transmitting signal generated by using the re-transmission function that is created according to the second channel condition, wherein the data sequence is demodulated and decoded using the first transmitting and the second transmitting signals.

Abstract: According to a method and apparatus taught herein, signal impairment correlations across antennas in a multi-antenna receiver are determined using data values rather than pilot values in a multi-frequency signal received at each of the receiver antennas. For example, in an OFDM signal chunk having a number of data sub-carriers and a smaller number of pilot sub-carriers, processing herein determines received signal correlation estimates across the receiver antennas based on at least the data sub-carriers within the chunk. Impairment correlation estimates are then derived from the received signal correlation estimates and channel estimates, which may be based on the pilot sub-carriers received in the same and/or other OFDM chunks. This processing enables the receiver to maintain accurate estimates of signal impairment correlations for interference suppression, even in the presence of very low pilot density.

Abstract: Aspects describe a Fast Hadamard Transform that is common to multiple mobile devices. A scrambled sequence produced by the Fast Hadamard Transform can be utilized to decode access-based handoff probes from multiple terminals within a wireless communications system. A Walsh Sequence can be scrambled with a common random sequence to produce a scrambled sequence. At least a portion of the scrambled sequence is included in an access probe.

Abstract: The invention enhances channel correction techniques for orthogonal frequency division multiplexing (OFDM) systems so that higher effective data rates can be achieved with a minimal processing load. OFDM channel values determined due to known sequences in one domain can be used to seed solution matrices for channel value determination in other domains. This method can be applied to multiple-input multiple-output (MIMO) systems in order to deal with signal distortion while maintaining a reasonable processor loading profile. In another embodiment, a method to optimize channel partitioning during channel estimation processing in an ultra-wide band (UWB) OFDM wireless communications network includes creating a plurality of windows across a time-frequency channel plane, adaptively sizing the plurality of windows, and merging the plurality of windows.

Abstract: A signal transmission apparatus in a communication system, includes: a first IFFT unit for generating a first signal by performing inverse fast Fourier transform on a first communication service signal corresponding to a first communication scheme; a first CP inserter for generating a second signal by inserting a first cyclic prefix having a length corresponding to the first communication scheme into the first signal; a second IFFT unit for generating a third signal by performing inverse fast Fourier transform on a second communication service signal corresponding to a second communication scheme; a second cyclic prefix inserter for generating a fourth signal by inserting a second cyclic prefix having a length corresponding to the second communication scheme into the third signal; and a transmission unit for multiplexing the second signal and the fourth signal and transmitting the multiplexed signals.

Abstract: Using alarm data correlation to automatically analyze a network outage. Alarm data for a communications network is received. The received alarm data is correlated to determine a number of users affected by the outage. A set of rules are applied to the correlated alarm data to identify at least one root cause for the outage, and to determine whether or not a trouble ticket will be automatically generated for the outage.

Abstract: A method and apparatus to manage network correction procedures is disclosed. An example method includes receiving an alarm relating to a network anomaly, receiving information relating to the location of the network anomaly, and determining an identity of at least one network element related to the location. The example method also includes ranking a list of corrective procedures, and selecting at least one corrective procedure from the list of corrective procedures.

Abstract: We propose overhear-based transmitting control system in WLANs to improve performance of 802.11 wireless LANs. The main idea of this scheme is that when the transmission of a node fails, one of neighboring nodes with better channel quality retransmits the lost frame in substitution. To do so, every node should maintain overhear table to buffer the transmitted packets that is not yet acknowledged. We also present algorithms to retransmit lost packets, to maintain the overhear table and to compensate for the retransmission of packets of other nodes. The performance of this scheme is evaluated via simulations in terms of MPDU size and average path loss. It shows that in environments where the packet is likely to be lost more, the throughput gain of our proposed scheme performs better.

Abstract: In a network including a number of nodes configured to support multi-protocol label switching, a method may include forming a primary label switching path (LSP) from a first one of the nodes to the other ones of the nodes in a first direction. The primary LSP may form a first ring-like LSP including each of the nodes. The method may also include forming a secondary LSP from the first node to the other ones of the nodes in a second direction opposite the first direction. The secondary LSP may form a second ring-like LSP including each of the nodes.

Abstract: Methods and apparatus are described for assigning data units to a plurality of groups. A key is generated for each of the data units such that the keys corresponding to associated ones of the data units are identical. An initial hash value is generated for each of the keys. A number of techniques are described for then deterministically scrambling the initial hash values such that small bit changes in the keys will typically produce stochastically large changes in the final hash values. The data units are mapped to specific ones of the groups with reference to the scrambled hash values.

Abstract: Queued real-time voice received over a data network is actively managed. Upon detecting that the amount of real-time voice stored in the queue has reached a first threshold, a selection process selects non-consecutive portions of the voice to remove from the queue while maintaining a high Quality of Service (QoS) and ensuring that the queue does not overflow.

Abstract: When a plurality of pre-stage packet controllers receive an instruction on transmission of the priority information from a post-stage packet controller, they derive priority information on the basis of the ratios of bandwidths which can be used at minimum by the user devices, and statuses of storing packets in the buffers, and transmit the priority information to the post-stage packet controller. The post-stage packet controller then selects a pre-stage packet controller to be actually given packet transmission permission on the basis of the priority information received from the plurality of pre-stage packet controllers, and transmits an instruction on packet transmission permission to the selected pre-stage packet controller. The pre-stage packet controller which has received the instruction on packet transmission permission from the post-stage packet controller then transmits a packet to the post-stage packet controller.

Abstract: In one embodiment, an enterprise network is provided that includes a mobility module 150 associated with a first or second switch/server 100 or 104, respectively. On the second switch/server, the mobility agent manages a pool of mobility user station records 168a-j and creates visitor application records 172a-i associated with a external subscriber communication devices 136a-n. Each visitor application record is associated with a subscriber whose communication device is controlled by the first switch/server 100. In response to a selected stimulus, outgoing call processing for selected communication devices on the first switch/server is moved to the second switch/server 104 by associating, for each such device, a selected record 168 with a corresponding record 172.

Abstract: Methods of iterating through a set of data objects on a source server, copying them to a destination server, and preparing a mapping database correlating source and destination data object identifiers are described and claimed. The mapping database also includes data retention policy information and policy discrepancy information. Systems using similar methods, and software to perform similar methods, are also described and claimed.

Abstract: Systems and methods for regulating the throughput of a channel between a gateway and one or more subscriber terminals are disclosed. Various embodiments of the invention provide for monitoring link utilization between a gateway and a subscriber terminal at, for example, the physical layer of the OSI model. Based in part on the link utilization the link throughput may be throttled at a layer higher than, for example, the transport layer. Regulating may occur by advertising a decreased TCP window size or intelligently dropping packets. In another embodiment, a subscriber terminal may estimate the signal to noise ratio of a forward link channel and communicate this SNR to the gateway. The gateway may adjust the modulation and/or coding of the signal in response to the SNR. The gateway may also throttle deliver of packets in response to changes these changes in the modulation and/or coding of the signal.