126results about How to "Reliable reproduction" patented technology

In an information recording medium storing many pieces of content, a configuration that allows use management on segmented content basis is provided. A plurality of content management units corresponding to title, index and other information are set by partitioning stored content in an information recording medium. Different unit keys that are encryption keys are allocated to different content management units. At least the content real data included in each content management unit is encrypted by use of the unit key and the encrypted data is stored. In content reproduction, units are identified and decryption is executed by use of a unit key corresponding to each unit for reproduction. In an information recording medium storing many pieces of content for example, each of segmented pieces of content may be managed.

An optical disk storing write-once information usable for protecting the copyright of the software by preventing the duplication, unauthorized use, etc., of the software. In the optical disk, a recording layer (213) is formed on a disk substrate (211) with a dielectric layer (212) inbetween. Then, an intermediate dielectric layer (214) and a reflecting layer (215) are successively laminated upon the recording layer (213), and an overcoat layer (216) is formed on the surface of the reflecting layer (215). A plurality of BCA (one of write-once identification information systems) sections (220a and 220b) are recorded by lowering the vertical magnetic anisotropy of the recording layer (213). At the time of reproduction, the write-once information is detected from differential signals.

An optical disc device includes a laser light source for radiating a laser light beam illuminated via an objective lens on a signal surface of an optical disc, a return light detection unit for detecting the reflected light radiated from the laser light source and reflected from the signal surface of the optical disc, a disc discriminating unit for discriminating the type of the optical disc based on a detection output of the return light detection unit, a unit for detecting tracking error signals of plural different types of different detection systems based on the detection output of the return light detection unit, a tracking unit for displacing the objective lens along the radius of the optical disc responsive to the tracking error signals for tracking-controlling a laser spot of the laser light focussed on the signal surface of the optical disc and a controlling unit for switching the detection system based on a discriminating output by the disc discriminating unit for selecting one of the plural types of the tracking error signals responsive to the types of the optical discs.

A magnetic recording and reproducing apparatus extracts a record signal from a sum signal (ADD) of signals detected via first and second magnetic detection regions (RH1, RH2) that are formed to be offset in the lengthwise (T_L) and widthwise (T_W) directions of a recording track having an overlapping part in the widthwise direction (T_W), and extracts servo information from a sub signal (SUB).

An information storage medium (1) has tracks in which information is recorded. The tracks are formed as a groove section (2) and a land section (3). The groove section (2) has a synchronous structure in which wobbles (2a) and (2b) formed on both walls of the groove section (2) are not displaced from each other in the circumferential direction of the medium, and the land section (3) has an asynchronous structure in which wobbles formed on both sides of the land section (3) are displaced from each other. A good signal is reproduced from each of the groove and land sections.

The present invention enhances reliability by correcting a write error due to unstable oscillation of a spin torque oscillator. In the present invention, a resistance value of a spin torque oscillator is monitored to detect that oscillation becomes unstable during recording. When a measured resistance value is out of a predefined normal range, information for which the recording operation is already performed is rewritten.

A two-dimensional solid-state imaging device includes: pixel regions arranged in a two-dimensional matrix, wherein each pixel region has a plurality of subpixel regions, a metal layer with an opening of an opening size smaller than the wavelength of an incoming electromagnetic wave and a photoelectric conversion element are arranged with an insulating film interposed therebetween, at least one photoelectric conversion element is arranged in the opening provided at a portion of the metal layer in each subpixel region, a projection image of the opening is included in a light receiving region of the photoelectric conversion element, the opening is arrayed so as to cause a resonance state based on surface plasmon polariton excited by the incoming electromagnetic wave, and near-field light generated near the opening in the resonance state is converted to an electrical signal by the photoelectric conversion element.

A composite system includes a first component, for instance of metal, and a second component extending at least partly through the first component along an imaginary longitudinal axis of the composite system. The second component contacts, with an at least partially curved, especially cylindrical, outer surface, an inner surface of the first component flushly such that the first component at least sectionally, at least partly, grips around the second component. Joining surfaces of the composite system, which are formed by the mutually contacting surfaces of the two components, are formed in such a manner that the two components exhibit contour portions in the area of these joining surfaces embodied as self-closing, peripheral surfaces. The contour portions fit at least partly into one another, to form a mechanical interference locking effective, at least in part, likewise in the direction of the longitudinal axis. Additionally, the second component, with its outer surface, contacts the inner surface of the first component flushly, such that the two components are mechanically tightly connected together also by means of a frictional locking effective at least partly in the direction of the longitudinal axis. Alternatively, or in supplementation thereof, at least one of the components is subjected at least partly to lastingly elastic, especially mixed plastic-elastic, deformations. The composite system is distinguished by a high pull-out strength, even in the presence of repeatedly arising vibrations in one of the components and is, therefore, especially suited also for use in a vibration-type measurement pickup.

Methods and systems that enable reliable audits of a number of predetermined trust requirements for games by electronic means, either on-site or remote, are disclosed. A system including a gaming module to which the players interact with a security module and an audit module capable of several degrees of dispersion and/or grouping performs provision by the gaming module to the security module of digital information containing significant events occurred during the games, generation by the security module of a protected record for each of the cited significant events, storage by the security module of every protected record, generating a file of protected records, and access by the audit module to the file of protected records, independent from the games operator, to verify the correct development of the games.

In a coefficient measurement apparatus, a line input terminal receives a pickup signal that is generated based on a string vibration of a musical instrument. A microphone input terminal receives a microphone signal acquired by a microphone that collects sounds of the musical instrument. An adaptive filter estimates a transfer function associated to resonance of the musical instrument and a transfer function of an acoustic space formed from the musical instrument to the microphone, generates an output signal by processing the pickup signal using the estimated transfer function, and updates the transfer function using a difference between the output signal and the microphone signal as a reference signal.

The reproduction durability of an optical recording medium is evaluated highly accurately in a short period of time by providing a method for evaluating the optical recording medium, the method including determining an operating laser power for heating a recording layer to a recording operating temperature; determining a temperature of the recording layer when a laser beam having a predetermined reproducing laser power is radiated during a data reproduction; determining a relationship between the reproducing laser power during the data reproduction and a reproduction durability times at the reproducing laser power; and determining a relationship between the temperature of the recording layer during the data reproduction and the reproduction durability times from the relationship between the reproducing laser power during the data reproduction and the reproduction durability times.

The present invention relates to a novel process for the preparation of polyaddition products, to the products obtainable by this process and to their use as starting components in the production of polyurethane plastics. The process includes the reaction of A) polyisocyanates with uretdione groups having a mean isocyanate functionality of at least 2.0, optionally with the concomitant use of B) other diisocyanates and/or polyisocyanates, different from A, in an amount of up to 70 wt. %, based on the total weight of components A) and B), with C) polyols in the molecular weight range 62-2000 having a mean functionality of at least 2.0, or mixtures of polyols and optionally D) other isocyanate-reactive monofunctional compounds in an amount of up to 40 wt. %, based on the total weight of components C) and D). An equivalent ratio of isocyanate groups to isocyanate-reactive groups of 1.8:1 to 0.6:1 is maintained in the reactants, and the reaction is carried out in the presence of at least one bismuth-containing catalyst.

According to the present invention, there is provide an acoustic apparatus in which the vibration generated by the speaker units imposes no influence on the other devices provided in the apparatus. The acoustic apparatus includes at least a pair of speaker units, a speaker box that contains the pair of speaker units, which have sound-generating sides facing away from each other, and a support member that supports the speaker box, wherein the speaker box is spaced from an installation surface because a baffle plate holding at least one of the speaker units has a circumferential edge supported by the support member.

Letting fp be the frequency of a pixel clock, fs be the audio sampling frequency, and fa be the frequency of an audio clock to be reproduced, fa=384fs=(N/M)fp, where N and M are frequency dividing ratios between the pixel clock and the audio clock of a frequency corresponding to the audio sampling frequency. When fs=48 kHz, M=27000 and N=18432, and when fs=44.1 kHz, M=30000 and N=18816. A VCO control unit detects a change in the audio sampling frequency fs from a control voltage Vctl output from a loop filter or from the frequency fo of an output clock of an oscillating unit, and then selects one of at least two VCOs.

Data is read from a recording medium and the reproduced data is deinterleaved and stored to a first memory while input/output to/from the first memory is arbitrated. It is determined whether a predetermined number of data units is stored to the first memory. Based on the result data, it is determined whether transfer of the data stored in first memory to a second memory is permitted. If data transfer is permitted, the reproduced data is transferred from the first memory to the second memory, during which time input/output to/from the second memory is arbitrated. The reproduced data stored to the second memory is then error corrected, and user data contained in the error corrected reproduction data is externally output from the second memory.

An electromechanical horn having a sound generating system including a piezoelectric speaker generates a series of short, audible sound signals in a repetitive pattern, the generated sound signals having fundamental frequencies with associated harmonic component frequencies and decibel levels that fall within a frequency range of greatest hearing sensitivity of the animal to disperse or deter an aggressive animal in a non-detrimental manner. The generated sound signals have fundamental frequencies with associated harmonic component frequencies that fall within a frequency range of from about 3 kHz to about 10 kHz, and decibel levels in a range of from about 75 dB to about 115 dB (SPL) at 1 meter. The horn device can be hand-held, attached to a user's belt or clothing, or removably attached to a bicycle, motorcycle, stroller, or other conveyance or object and can be actuated while attached or quickly removed and actuated when needed.

A broadcast programming delivery apparatus includes: a broadcast programming delivery control unit that controls broadcast programming delivery based on a broadcast programming delivery program formed of a plurality of items; and a switcher being controlled by the control unit, and a plurality of output channels of a material server having the plurality of output channels for outputting a video material being connected to predetermined input lines of the switcher, wherein the items include control data of the switcher having information for specifying a video material of the material server, and the control unit receives, from the material server, channel material information indicating a video material outputted from each of the output channels, and allows an input bus of the switcher necessary to take an input of a video material to select one of the input lines corresponding to the output channel from which the corresponding video material is outputted.

The invention provides a necking detecting and controlling method for melted-electrode arc welding. During the melted-electrode arc welding, an electric arc can be smoothly regenerated even if molten drop necking is wrongly detected. Through the change in a voltage value (Vw) or a resistance value (Vw/Iw) of a welding wire and a base material, the premonitory phenomena of electric arc regeneration under the short-circuit state, i.e., molten drop necking, is detected according to a necking detection reference value. The welding current (Iw) which powers on a short-circuit load is reduced from the necking detection time (t2), so as to enable the regeneration (t3) of the electric arc. If the electric arc is regenerated, then the welding current is increased. When the self-necking detection period of time reaches the reference time (Tt) before the regeneration of the electric arc (t21), the necking detection is judged to be wrong. The welding wire is reversely moved at a set reverse feeding speed (Frr) so as to be far away from the base material, so that the electric arc is smoothly regenerated. If the electric art is regenerated, then the welding wire is moved at a set forward feeding speed (Ffr).

A method of managing a defective area in an information recording medium having a user data area, a replacement area, and a defect management information area is disclosed. The method manages the defective area using a block of a predetermined size as a unit of management. The method includes the step of, at the time of replacing a defective block including the defective area with a replacement block of the replacement area, dividing the replacement block into multiple sub-blocks, and setting identification information for identifying a first one of the sub-blocks to which data is relocated from the defective block and a second one of the sub-blocks to which no data is relocated from the defective block. The identification information is set in defect management information.