Sony Corporation

Other

Sony Optiarc Inc.

Junichi Horigome

Shigeo Yamaguchi

Takayoshi Chiba

Masatoshi Nishino

Masayoshi Nagata

Hideki Ando

Goro Fujita

Tsutomu Maruyama

Yoshiyuki Urakawa

Yuuichi Suzuki

Mitsugu Imai

Yasuo Tone

Noriaki Nishi

Hiroshi Aoki

Tsutomu Ishimoto

Satoru Higashino

Yuichi Suzuki

Tomoharu Mukasa

Atsushi Watanabe

Yoshihiko Deoka

Motoyasu Yumita

Hideo Tada

Susumu Seino

Masahiro Uchida

Shiro Suzuki

The present technology relates to an information processing device and method, a recording medium, and a program, which can improve a data transfer speed. In the recording medium, a recording area is divided into a plurality of simulated zones and a set of the plurality of simulated zones composes a simulated zone group. Then, an address is set to each area in the simulated zones so that the addresses are interleaved between the simulated zones composing the simulated zone group. By interleaving the addresses between the simulated zones in this manner, a local seek operation or a rotational delay can be reduced and the data transfer speed can be improved when recording or reproducing data to the recording medium in more than one channel at the same time. The present technology can be applied to an optical disk.

Information processing device and method, recording medium, and program

The present technology relates to a recording control apparatus, a recording control method, a drive controlling controller, a drive controlling method, a recording medium, and a program capable of reading information more reliably. A manager generates DMSs as management information for managing user data areas and spare areas of an optical disc. Further, the manager records the generated DMS in a DMA area of DSof the optical disc, and, in addition, records the generated DMS in a DMA mirror area of the DSsurface of the optical disc. As described above, since DMSs as management information are recorded in the different areas of the optical disc, even if DMS cannot be read from one area, DMS can be read from the other area. The present technology is applicable to a recording and reproducing apparatus.

Recording control apparatus and method, drive controlling controller and method, recording medium, and program

Provided is a CAV or a zone CAV. A groove which continuously wobbles is preliminary formed and information is recorded in the groove and a land adjacent to the groove, the groove has a first wobble part which is modulated by groove address information, a second wobble part which is modulated by address information of one adjacent land, and a third wobble part which is modulated by address information of the other adjacent land, a first section sandwiched between the second wobble parts of adjacent two grooves and a second section sandwiched between the third wobble parts of the adjacent two grooves are formed on the land, and one of phases of wobbles on both sides of the first section and phases of wobbles on both sides of the second section are substantially in-phase.

Optical information recording medium and optical information recording medium reproducing device

A laser apparatus and bio-imaging apparatus are provided, which include: a mode-lock laser unit including a saturable absorber section that applies a bias voltage, a gain section that feeds a gain current, a semiconductor laser that emits laser light, and an external resonator; an optical modulation unit performing amplification modulation on the laser light emitted from the mode-lock laser unit; a reference signal generation unit generating a master clock signal and supplying a signal synchronized with the master clock signal to the gain section of the semiconductor laser; and a driving circuit generating a driving pulse used to drive the optical modulation unit based on the reference signal.

Laser apparatus and bio-imaging apparatus

There is provided an recording apparatus including a light irradiation unit, a reference-plane tracking control unit, a recording unit that executes recording on the recording medium by independently modulating first and second recording beams when the recording beams radiated by the first and second objective lenses are designated as the first and second recording beams, respectively, a recording-layer tracking control unit that performs tracking control of the first objective lens based on reflected light of a first servo beam and tracking control of the second objective lens based on reflected light of a second servo beam when the servo beam radiated by the first objective lens is designated as the first servo beam and the servo beam radiated by the second objective lens is designated as the second servo beam, and a control unit that controls the reference-plane tracking control unit, the recording-layer tracking control unit, and the recording unit.

Recording apparatus, recording method, reproducing apparatus, and reproducing method

A recording device performs recording on an optical disc recording medium having a reference face having a reflection film provided with a position guide, and a recording layer provided at a position of a depth different from that of the reference face and performing information recording by mark forming according to irradiation of light. The recording device includes a light generating and irradiation unit, a recording unit, a tracking mechanism, a first tracking error signal generating unit, a second tracking error signal generating unit, a tracking servo control unit, and a control unit.

Recording device and recording method

Provided is a recording device, including a light irradiation/receiving unit that irradiates an optical recording medium with first light and second light, and that receives backpropagating light of the second light from the optical recording medium, a recording unit that carries out recording on the optical recording medium, a playback signal generating unit that obtains a playback signal of a signal, and a stray light signal component canceling unit that generates, based on recording data, a stray light cancel signal for canceling a stray light signal component.

Recording device and stray light signal component cancellation method

A recording apparatus includes: a light-emitting/receiving unit which emits a recording beam, an ATS beam, and a position control beam toward an optical disc recording medium via a common object lens; a tracking mechanism which drives the object lens in a tracking direction parallel to a radial direction of the optical disc recording medium; a reference plane-side tracking error signal generation unit which generates a reference plane-side tracking error signal; a reference plane-side tracking servo signal generation unit which generates a reference plane-side tracking servo signal to cancel out a tracking error; a tracking driving unit which drives the tracking mechanism; an ATS-side tracking error signal generation unit which generates an ATS-side tracking error signal; an ATS control signal generation unit which generates an ATS control signal to cancel out a tracking error; and a signal providing unit which provides the ATS control signal to a tracking servo loop.

Recording apparatus

A recording apparatus includes: a light illumination and light sensing unit configured to illuminate an optical disc recording medium including a reference surface having address information recorded and a recording layer, with recording light and light for position control; a recording unit which performs recording on the recording layer; and a control unit which controls, when data instructed to be recorded is to be recorded from an instructed recording start address, the recording unit to perform recording of dummy data on an area adjacent to a front side at least from the recording start address over a range of equal to or greater than the maximum spot deviation amount between an illumination spot of the light for position control and an illumination spot of the recording light and to perform recording of the data instructed to be recorded in succession to a recorded area of the dummy data.

Recording apparatus and recording method

In a case of performing recording/playing with an information recording layer with a first light irradiation, and controlling the recording/playing positions on the information recording layer by a second light irradiating as to a position control information recording layer provided separately from the information recording layer, corrections to shifts in recording positions and playing positions that occurs as a result of shifts in the optical axes of the first and second lights. A disc-shaped recording medium has multiple pit row phases wherein, the pit rows having a spacing between one round of pit formable positions that is limited to a predetermined first spacing are formed in a spiral shape or concentrically, and with pit rows arrayed in the radius direction, the spacing in the pit row forming direction of the pit formable positions is set to positions shifted by a predetermined second spacing. Therefore multiple pit rows can be arrayed in within the width of one conventional track, and a tracking servo can be used for the selected pit rows in accordance with the correction amount of the playing position, in which case corrections can be made with high precision that is narrower than one track width.

Disk-shaped recording medium, optical spot position control device, and optical spot position control method

An optical recording medium in which recording is performed by a recording device that is configured such that tracking servo control of recording light is performed by irradiating the recording light and ATS light for an adjacent track servo and by an adjacent track servo based on reflected light of the ATS light, wherein while a recording layer in which a mark is formed according to an irradiation of the recording light is included, a mark row is formed in advance by a pitch that is twice a distance between an irradiation spot of the recording light and an irradiation spot of the ATS light or greater in the recording layer.

Optical recording medium and recording device

A recording apparatus, which records information in an optical recording medium, includes: a mode-lock laser unit including a saturable absorber section that applies a bias voltage, a gain section that feeds a gain current, a semiconductor laser that emits laser light used to record the information on the optical recording medium, and an external resonator; an optical modulation unit performing amplification modulation on the laser light emitted from the mode-lock laser unit; a reference signal generation unit generating a master clock signal and supplying a signal synchronized with the master clock signal to the gain section of the semiconductor laser; a recording signal generation unit generating a recoding signal based on the master clock signal; and a driving circuit generating a driving pulse used to drive the optical modulation unit based on the recording signal.

A recording device including a light irradiating and light receiving unit which, in regard to an optical recording medium, which has a reference surface and a recording layer which is formed at a depth position different from the reference surface, where a pit row where intervals of pit formable positions in one circumference is limited to a first interval is formed in the reference surface, and which has a plurality of pit row phases by intervals of the pit formable positions in a pit row formation direction being set in a position which is each deviated by a predetermined second interval in the pit row which are arranged in the radial direction, irradiates a first light as recording light with regard to the recording layer and a second light for obtaining reflected light from the reference surface and which receives reflected light of the second light from the reference surface.

Recording device and spot position control method

Provided is a recording apparatus including a light irradiation and receiving unit configured to irradiate recording light for performing mark recording to a recording layer and an adjacent servo light for an adjacent track servo onto an optical disc recording medium having the recording layer through a common objective lens, and to receive reflected light from the recording layer of the adjacent servo light, a tracking mechanism configured to drive the objective lens in a tracking direction which is the disc radial direction, a tracking servo signal generation unit configured to obtain a corrected servo error signal as a servo error signal based on a light receiving signal for the adjacent servo light, and to generate a tracking servo signal using the corrected servo error signal, and a tracking driving unit configured to drive the tracking mechanism based on the tracking servo signal.

A recording device includes: a rotation driving unit that rotates an optical medium having a reference face and a recording layer, at a constant velocity; a light irradiating unit that irradiates the optical recording medium with first and second light through a common object lens; an infocus position adjusting unit that performs adjustment to focus; a light receiving unit that receives reflection light from the reference face; a reproducing clock generating unit that generates a reproducing clock on the basis of a light reception signal; a radial position detecting unit that detects the radial positional information on the basis of the light reception signal and the reproducing clock positional information; a frequency adjusting unit that changes a frequency of an input reference signal; and a recording unit that performs mark recording on the recording layer using the signal obtained by the frequency adjusting unit as a recording clock.

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Tokyo, Japan

Junichi Horigome