OPTICAL RECORDING MEDIUM
    1.
    发明申请

    公开(公告)号:US20230018411A1

    公开(公告)日:2023-01-19

    申请号:US17757482

    申请日:2020-12-23

    发明人: YASUHIRO SONE

    摘要: An optical recording medium includes a plurality of information signal layers. The plurality of information signal layers include a recording layer having a first surface that faces a light irradiation surface and a second surface on the side opposite to the first surface, a first dielectric layer that is provided on the side of the first surface, and a second dielectric layer that is provided on the side of the second surface. The second dielectric layer provided in the information signal layer positioned on the innermost side when viewed from the light irradiation surface contains indium oxide and tin oxide. The recording layer provided in the information signal layer positioned on the innermost side when viewed from the light irradiation surface contains an oxide of a metal MA, an oxide of a metal MB, an oxide of a metal MD, and an oxide of a metal ME, the metal MA is at least one selected from the group consisting of Mn and Ni, the metal MB is at least one selected from the group consisting of W, Mo, Zr and Ta, the metal MD is at least one selected from the group consisting of Cu and Ag, the metal ME is Nb, the contents of the metal MA, the metal MB and the metal ME satisfy the relationship of 0.30≤a1/(b1+e1)≤0.41 (where, a1: atomic ratio [atomic %] of the metal MA with respect to a total amount of the metal MA, the metal MB, the metal MD and the metal ME, b1: atomic ratio [atomic %] of the metal MB with respect to a total amount of the metal MA, the metal MB, the metal MD and the metal ME, and e1: atomic ratio [atomic %] of the metal ME with respect to a total amount of the metal MA, the metal MB, the metal MD and the metal ME), and the atomic ratio e1 of the metal ME with respect to a total amount of the metal MA, the metal MB, the metal MD and the metal ME is 5 atomic % or more and 18 atomic % or less.

    Optical encoder system and method

    公开(公告)号:US11156481B2

    公开(公告)日:2021-10-26

    申请号:US16986575

    申请日:2020-08-06

    申请人: Michael Naor

    发明人: Michael Naor

    摘要: An optical encoder is provided. The encoder includes an optical disc mounted on a shaft, the optical disc containing pit and land markings; an optical pickup unit for an optical disc that receives light from the optical disc and supplies as an output an electrical signal representative of the received light, comprising: a reading head objective lens, and dynamic steering actuators that control the focus and tracking of the reading head objective lens; a processor that receives as an input the electrical signal from the optical pickup unit and reports motion of the substrate based on the received at least one electrical signal.

    Method for reading and writing with holographic system and holographic storage system

    公开(公告)号:US11100950B1

    公开(公告)日:2021-08-24

    申请号:US17084607

    申请日:2020-10-29

    摘要: A method for reading and writing with holographic system includes the following operations: (a) providing a reference light and a signal light; (b) transferring the reference light and the signal light to an optical recording medium, for recording an interference grating; (c) changing the reference light and the signal light and repeating the operations (a) to (b) until M interference gratings are recorded on the optical recording medium; (d) providing a reading light to the optical recording medium, for reading the M interference gratings at the same time to generate an interference result, wherein the interference result is a result that diffraction signals of the M interference gratings interfere to each other; and (e) changing the reading light and repeating the operation (d), for obtaining N interference results. A holographic storage system is also disclosed herein.

    Information processing device, information processing method, and program

    公开(公告)号:US10600442B2

    公开(公告)日:2020-03-24

    申请号:US15762366

    申请日:2016-10-04

    申请人: SONY CORPORATION

    摘要: Data reproduction is performed in a mode decided on the basis of disc type information which is record data of a disc. A reading rate compatible with a physical format of a disc is compared with a reading rate compatible with a disc type, and in a case where the reading rates do not coincide with each other, data read from the disc at the physical format compatible rate is stored in the buffer, and the reproduction process is performed using the data output from the buffer at the disc type compatible rate. In a case where the physical format is BD-R or BD-RE, and the logical format is a logical format compatible with BDMV-UHD, the emulation mode reproduction accompanied with the rate conversion using the buffer is performed.

    Signal processing apparatus, signal processing method, and program

    公开(公告)号:US10522162B2

    公开(公告)日:2019-12-31

    申请号:US16366035

    申请日:2019-03-27

    申请人: Sony Corporation

    发明人: Chisato Kemmochi

    摘要: The present technology relates to a signal processing apparatus, a signal processing method, and a program by which, in reproducing transmitted encoded data in real time, buffer overflow can be prevented from occurring on a reception apparatus side even if it is transmitted with a compression rate of the encoded data being varied in a manner that depends on communication condition. Encoded data including transmitted audio data is buffered by a reception buffer. At this time, the quantity of encoded data buffered by the reception buffer is managed in units of processing according to an encoding method. The present technology is applicable to a real-time content reproduction system utilizing a communication system.

    OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC RECORDING METHOD

    公开(公告)号:US20190237102A1

    公开(公告)日:2019-08-01

    申请号:US16260837

    申请日:2019-01-29

    摘要: An optical disc recording device includes a data acquisition unit configured to acquire bitmap data corresponding to image information, an address information acquisition unit configured to acquire address information set in wobbles of an optical disc by wobble synchronization from the optical disc, a recording position determining unit configured to determine a recording position on the optical disc for recording the bitmap data using the address information, and a mark recording unit configured to form a recording mark corresponding to the bitmap data on the information recording track of the optical disc by applying a light beam having recording power to the recording position on the optical disc.

    SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM

    公开(公告)号:US20190221222A1

    公开(公告)日:2019-07-18

    申请号:US16366035

    申请日:2019-03-27

    申请人: Sony Corporation

    发明人: Chisato Kemmochi

    摘要: The present technology relates to a signal processing apparatus, a signal processing method, and a program by which, in reproducing transmitted encoded data in real time, buffer overflow can be prevented from occurring on a reception apparatus side even if it is transmitted with a compression rate of the encoded data being varied in a manner that depends on communication condition. Encoded data including transmitted audio data is buffered by a reception buffer. At this time, the quantity of encoded data buffered by the reception buffer is managed in units of processing according to an encoding method. The present technology is applicable to a real-time content reproduction system utilizing a communication system.