Abstract:
In order to generate a sampling clock having a higher accuracy, a synchronous signal generating circuit is provided with a phase error detector, detecting a phase error of a read out signal digitized on the basis of FDTS algorithm, and a VCO, controlling an oscillation frequency on the basis of a phase error detected by the phase error detector, to generate a synchronous signal by the VCO. On the basis of the synchronous signal generated by the synchronous signal generating circuit, an ADC digitizes the read out signal. The digitized read out signal is then converted to binary data by a detection circuit.
Abstract:
A method for reproducing information on a recording medium includes irradiating electromagnetic energy or light to the recording medium from one side with respect to the recording medium, applying a recording magnetic field to an electromagnetic energy or light irradiated position on the recording medium from the one side of irradiating electromagnetic energy or light, and detecting magnetic leakage flux emerging from the recording medium from the one side of irradiating electromagnetic energy or light.
Abstract:
To provide improved acrylic resin which has weatherability such as the gloss-retaining ability almost as good as that of the fluorine resin or silicone resin while maintaining the advantages of the conventional acrylic resin binder as paint resin such as the gloss or pigment dispersion stability. The emulsion is characterized in that it comprises in 100 wt. % of resin emulsion component thereof: (a) 0.1 to 10 wt. % of a monomer containing light stabilizing group; and (b) 0.1 to 10 wt. % of a monomer containing alkoxysilyl group. Preferably, it further comprises (c) 0.1 to 10 wt. % of monomer containing ultra-violet absorbent group.
Abstract:
An optical recording control method determines an optimum recording laser power by effecting a test recording before information to be recorded is recorded on a disk. The recording laser power is formed of a plurality of powers. A relationship among the plurality of laser powers is regulated by power level ratios between respective powers, whereby a power used when a laser light is radiated on the disk can be controlled to be constant independent of an ambient temperature and a structure of a disk. Therefore, accurate recording marks can be formed on the disk.
Abstract:
In an information recording/reproducing apparatus constructed of: a buffer for storing therein consecutive recording data in a unit of two dimensional conversion; a coding device for converting the consecutive recording data into a two-dimensional data arrangement arranged by "n" lines and "m" columns corresponding to said unit of data; a recording device for subdividing said two-dimensional data arrangement arranged by "n" lines and "m" columns so as to be read out, and for controlling "m" pieces of light sources in accordance with these data series; and an optical apparatus for converging luminous fluxes from said "m" pieces of light sources so as to form "m" pieces of spots on a disk plane, the recording data is recorded on the disk plane as an optically distringuishable pit group having two-dimensionally extended areas arranged by "n" lines and "m" columns. During a reproducing operation, the reflected light is detected by "m" pieces of detectors; "m" columns of one-dimensional data series are generated from the reflected light detected by these detectors in a generator; and also consecutive data is reproduced from the two dimensional data arranged by "n" lines and "m " columns in a decoder.
Abstract:
Disclosed is a multi-color transfer image forming method, which comprises subjecting a colored image forming material having a coloration recording layer comprising at least two layers and containing a photosensitive material and a colorant on a support to aqueous development after imagewise exposure, thereby forming a colored image, transferring the colored image to an image receiving member through the outermost surface of the coloration recording layer and then transferring at least one colored image with different hue onto the same image receiving member in conformity with the colored image, characterized in that the layer of the coloration recording layer remotest from the support is a layer adherable to the image receiving member, and only the colored image portion is transferred onto the image receiving member to have the image receiving member surface exposed at the non-image portion of the multi-color image.According to the present invention, the treating process of multi-color transfer image becomes simpler and also a transferred image approximate to a printed matter can be obtained.
Abstract:
In a data recording operation, various patterns each having n edge widths (n is an integer), which are considered to appear in the operation, are predicted such that a record pattern sequence including the various patterns is recorded before an actual data recording operation. Using a read-out signal thereof, a shift quantity of each edge of the read-out signal with respect to an inherent edge record position is attained, thereby generating a table containing relationships between the respective patterns and the edge shift quantities. During an actual data recording operation, a record signal of the data is collated in a unit of the n edge widths with the patterns stored in the table so as to correct the edge width.
Abstract:
The present invention is to solve a variety of problems relative to conventional lactitol crystals and relates to a trihydrate crystal of lactitol having a molecular formula C.sub.12 H.sub.24 O.sub.11.3H.sub.2 O and a melting point of 52.degree.-56.degree. C., a crystalline mixture solid containing it and a process for producing them.
Abstract:
The present invention is to solve a variety of problems relative to conventional lactitol crystals and relates to a trihydrate crystal of lactitol having a molecular formula C.sub.12 H.sub.24 O.sub.11 .multidot.3H.sub.2 O and a melting point of 52.degree.-56.degree. C., a crystalline mixture solid containing it and a process for producing them.
Abstract:
A photosensitive planographic printing plate comprises an aluminum or aluminum alloy plate having an anodic oxidation layer obtained by the anode oxidation in an electrolyte of phosphoric acid or in an electrolyte of mixed acid but containing the phosphoric acid as a main component, and a layer of photopolymerizable photosensitive composition overlaid on the Al or Al alloy plate and containing a polymer binder having a carboxylic acid residue or carboxylic acid anhydride residue, an addition polymerizable unsaturated compound and a photopolymerization initiator.