Sony Corporation

Tomohiro Koda

Kazuhiko Fujiie

Susumu Senshu

Naohiro Netsu

An information processing apparatus including a display input device in which an image display unit and an operation input unit are integrally formed includes reproduction means for reproducing data recorded on a recording medium, storage means for storing defining data reproduced from the recording medium and defining an operation of the display input device, display control means for controlling the image display unit to display an operator in accordance with the defining data stored in the storage means, determining means for determining an operator for which an operation is input in accordance with an input content input from the operation input unit and a display content displayed on the image display unit, and operation content reading means for reading an operation content of the information processing apparatus stored in the storage means and defined for each operator in accordance with a determination result of the determining means.

Portable information processing apparatus, information processing method for portable information processing apparatus, and program

A magnetic head device comprising a head section for applying a magnetic field to a disk. The head section includes a magnetic field generating section and a slider . The slider supports the magnetic field generating section and may be set in sliding contact with the disk. The magnetic field generating section has a magnetic core and a coil wound around the magnetic core . The section is designed to generate the magnetic field and embedded in and formed integral with the slider . The head section excels in heat-radiating property.

Magnetic head device and recording/reproducing apparatus using the magnetic head device

The invention provides a laser strobe type magneto-optical recording apparatus wherein the recording laser power can be set in conformity with an influence of variations such as environmental variations arising from dust sticking to an objective lens, a disk and so forth or secular changes of an optical part, a disk and so forth to assure a high degree of reliability. To a disk initialized with an applied magnetic field of the S pole beforehand, the N pole is applied for a predetermined laser pulse outputting period set after each predetermined fixed interval to record a test pattern. Then, based on a reproduction signal of the test pattern, the recording laser power is adjusted and set so that the length of a pit recorded area formed corresponding to the laser pulse outputting period in the direction of a track may be appropriate.

Laser beam adjusting for magnetic field modulation overwrite

A playback clock generating circuit whereby the effect of a local flaw may be diminished to enable high-precision clock reproduction. During reproduction of a reference area, a signal processor 2 calculates a phase error of the playback clocks CK by a clock generation processor 2A based on sampled values of the playback signals of the reference pattern A/D converted by an A/D converter 1. During reproduction of a data area, the signal processor sends a phase correction signal derived form the phase error to a clock generator 3 for correcting the phase of the playback clock CK generated by the clock generator 3.

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Tokyo, Japan

Tomohiro Koda