公开(公告)号：ID20282A

公开(公告)日：1998-11-19

申请号：ID980730

申请日：1998-05-18

Applicant: SONY CORP

Inventor： OWA HIDEO ,  KOBAYASHI SHOEI ,  SENSYU SUSUMU ,  KATSURAMOTO SHINJI ,  WATANABE TOSHIO ,  MORI HIDENORI ,  YAMAMOTO MASANOBU ,  SAITO MASAKI

IPC: G11B7/007 ,  G11B7/013 ,  G11B7/12 ,  G11B7/135 ,  G11B19/28 ,  G11B20/10 ,  G11B23/033 ,  G11B27/034 ,  G11B27/036 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B27/34 ,  G11B27/36 ,  G11B17/26

Abstract: An optical disk apparatus for recording and/or reproducing user data on to and/or from an optical disk (12) includes an optical head (11) with a semiconductor laser (13) for irradiating a laser beam having a wavelength of approximately 680 nm or less to the optical disk (12) and having a lens (17) with a numerical aperture (NA) of approximately 0.7 or more and a working distance of approximately 560 µm or less. By utilizing such apparatus, a relatively large amount of data may be recorded onto the optical disk (12).

公开(公告)号：DE69030068T2

公开(公告)日：1997-06-12

申请号：DE69030068

申请日：1990-12-27

Applicant: SONY CORP

Inventor： OWA HIDEO

IPC: H04N9/86 ,  G11B7/00 ,  G11B7/004 ,  G11B20/02 ,  G11B20/06 ,  H04N5/85 ,  H04N9/82

Abstract: An apparatus for recording an information signal on a disk (27) by a laser beam is comprised of a rotating device (30, 31) for driving the disk (27) with a constant angular velocity, a modulator (25) for frequency-modulating the information signal in a predetermined manner, a control circuit (28, 30) for controlling the laser beam by the frequency-modulated information signal, and a record circuit (26) for changing the characteristics of the information signal in accordance with the position of the laser beam on the disk (27).

公开(公告)号：DE69030068D1

公开(公告)日：1997-04-10

申请号：DE69030068

申请日：1990-12-27

Applicant: SONY CORP

Inventor： OWA HIDEO

IPC: H04N9/86 ,  G11B7/00 ,  G11B7/004 ,  G11B20/02 ,  G11B20/06 ,  H04N5/85 ,  H04N9/82

Abstract: An apparatus for recording an information signal on a disk (27) by a laser beam is comprised of a rotating device (30, 31) for driving the disk (27) with a constant angular velocity, a modulator (25) for frequency-modulating the information signal in a predetermined manner, a control circuit (28, 30) for controlling the laser beam by the frequency-modulated information signal, and a record circuit (26) for changing the characteristics of the information signal in accordance with the position of the laser beam on the disk (27).

公开(公告)号：AU6833590A

公开(公告)日：1991-07-04

申请号：AU6833590

申请日：1990-12-21

Applicant: SONY CORP

Inventor： OWA HIDEO

IPC: H04N9/86 ,  G11B7/00 ,  G11B7/004 ,  G11B20/02 ,  G11B20/06 ,  H04N5/85 ,  H04N9/82 ,  G11B20/10

Abstract: An apparatus for recording an information signal on a disk (27) by a laser beam is comprised of a rotating device (30, 31) for driving the disk (27) with a constant angular velocity, a modulator (25) for frequency-modulating the information signal in a predetermined manner, a control circuit (28, 30) for controlling the laser beam by the frequency-modulated information signal, and a record circuit (26) for changing the characteristics of the information signal in accordance with the position of the laser beam on the disk (27).

公开(公告)号：AU606403B2

公开(公告)日：1991-02-07

申请号：AU1433888

申请日：1988-04-07

Applicant: SONY CORP

Inventor： OWA HIDEO ,  OKADA HITOSHI ,  SUGIKI MIKIO ,  TAKAHASHI HIROO

IPC: H04N9/802 ,  G11B7/00 ,  G11B7/004 ,  G11B20/00 ,  H04N9/81 ,  H04N9/82 ,  H04N9/835 ,  G11B20/10

Abstract: In an apparatus and method for optically recording on an optical disc (1) a TV signal comprising a colour image signal and an audio signal, one horizontal period portion of an original luminance signal (Y) and one horizontal period portion of two original colour difference signals (B-Y), (R-Y) from a standard TV signal are time-base-compressed to generate a time-base-compressed video signal (Figure 2B) for one horizontal period, the audio signal (ADDT) is digitized and time-base-compressed (Figure 2C), and then the time-base-compressed digital audio signal and the time-base-compressed video signal are time-division-multiplexed with each other to form a signal (St) for modulation and recording on the optical disc (1).

公开(公告)号：JP2014146408A

公开(公告)日：2014-08-14

申请号：JP2014035088

申请日：2014-02-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SAKO YOICHIRO ,  KURIHARA AKIRA ,  OSAWA YOSHITOMO ,  KAWASHIMA ISAO ,  OWA HIDEO

IPC: G11B20/10 ,  G06F1/00 ,  G06F21/10 ,  G06F21/62 ,  G06Q20/38 ,  G11B7/00 ,  G11B7/004 ,  G11B20/00 ,  H04L9/08 ,  H04N5/765 ,  H04N5/91

CPC classification number: G06F21/10 ,  G06F2211/007 ,  G06F2221/0704 ,  G06Q20/3829 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/00144 ,  G11B20/00152 ,  G11B20/00188 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00246 ,  G11B20/00304 ,  G11B20/00318 ,  G11B20/00347 ,  G11B20/00492 ,  G11B20/00514

Abstract: PROBLEM TO BE SOLVED: To enhance security in transmitting key information to a user from an information provider, and also surely identify the user.SOLUTION: An information providing device 200 distributes an information medium holding encrypted information to a user terminal 400. The information providing device 200 and the user terminal 400 establish a communication network between the information providing device 200 and the user terminal 400, and exchange information via the communication network. The information providing device 200 encrypts key information required for decrypting the encrypted information in the information medium, by using information such as an apparatus number of the user terminal 400 or a reading device ID. The user terminal 400 decrypts the encrypted key information transmitted from the information providing device 200 by using information such as the apparatus number of the user terminal 400 or the reading device ID, and further decrypts the encrypted information read out from the information medium by using the decrypted key information.

Abstract translation: 要解决的问题：提高从信息提供者向用户发送密钥信息的安全性，并且还可以肯定地识别用户。解决方案：信息提供装置200将保存有加密信息的信息介质分发给用户终端400。 设备200和用户终端400在信息提供设备200和用户终端400之间建立通信网络，并且经由通信网络交换信息。 信息提供装置200通过使用诸如用户终端400的装置号码或读取装置ID的信息，对信息媒体中的加密信息进行解密所需的密钥信息进行加密。 用户终端400通过使用诸如用户终端400的装置号码或读取装置ID的信息来解密从信息提供装置200发送的加密密钥信息，并且通过使用用户终端400对从信息介质读出的加密信息进行解密 解密密钥信息。

公开(公告)号：JP2002342973A

公开(公告)日：2002-11-29

申请号：JP2001150180

申请日：2001-05-18

Applicant: SONY CORP

Inventor： OWA HIDEO ,  YAMADA MASAHIRO

IPC: G11B7/0045 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To provide an optical disk unit which carries out multi-beam recording by means of one laser beam source. SOLUTION: A laser beam of recording power emitted from a semiconductor laser 11 is distributed to a plurality of laser beams in power in an optical switch part 21. The power modulation of these laser beams is performed by respectively corresponding optical modulators 27, 28, 29 and 30 according to a recording signal for every channel. The plurality of laser beams to which the power modulation has been applied are converged on the signal recording surface of an optical disk 1 through an objective lens 39 so that the laser beams form independent recording spots on the signal recording surface of the optical disk 1.

公开(公告)号：JP2001250228A

公开(公告)日：2001-09-14

申请号：JP2001035264

申请日：2001-02-13

Applicant: SONY CORP

Inventor： OWA HIDEO ,  KOBAYASHI SHOEI ,  CHIAKI SUSUMU ,  KATSURAMOTO SHINJI ,  WATANABE TOSHIO ,  MORI HIDENORI ,  YAMAMOTO MASANOBU ,  SAITO MAKI

IPC: G11B7/24 ,  G11B7/004 ,  G11B7/125 ,  G11B23/03

Abstract: PROBLEM TO BE SOLVED: To secure the recording capacity which can obtain the same operability as a video tape recorder only by efficiently utilizing a function intrinsic to an optical disk device. SOLUTION: In irradiating a laser beam below the wavelength 680 [nm] through a light transmission layer of thickness 10-177 [μm] and accessing an optical disk with about a working distance 560 [μm] and an optical system with a numerical aperture of 0.7 or more, by the same nearly beam diameter as that of the optical system of the optical disk of the same nearly size, the laser beam is been made incident on the optical system to irradiate the optical disk.

公开(公告)号：JPH05217236A

公开(公告)日：1993-08-27

申请号：JP2015092

申请日：1992-02-05

Applicant: SONY CORP

Inventor： ARAI MASAYUKI ,  OWA HIDEO

IPC: G11B7/00 ,  G11B7/0045 ,  G11B7/125 ,  G11B11/10 ,  G11B11/105

Abstract: PURPOSE:To expand the power margin for writing of a low level power at the time of information recording. CONSTITUTION:The period tau0 when a laser beam of the power lower than the power PW of the laser beam is cast or put out at the time of reading out after recording with the laser beam by a high power PH at the time of recording under modulation of light intensity is provided and (tau0/tauW)X100 is set at 15 to 70% when the time for writing the high power of one-channel clock is designated as TW.

公开(公告)号：JPH01213834A

公开(公告)日：1989-08-28

申请号：JP3849588

申请日：1988-02-23

Applicant: SONY CORP

Inventor： OWA HIDEO

IPC: G11B7/00 ,  G11B7/0045 ,  G11B7/0055

Abstract: PURPOSE:To permanently erase the data of high secrecy with a simple method by causing a control system, which prohibits recording to a recorded area, to be temporarily incompetent and executing double writing when the recording data of a disk are erased. CONSTITUTION:The level signal of reflection factor from a comparing circuit 5 and a radio frequency RF signal from an RF detecting circuit 6 are inputted to a discriminating circuit 7 and the condition of a recording area is identified by input data. When an erase signal is inputted to the circuit 7, even in case that the circuit 7 identifies a recorded condition, an R.OK signal is outputted to a laser power control part 2 and the recording of an FM signal can be further executed in a recorded place. The double writing is executed and the recording data are destroyed. Then, the data can not be read. Thus, when the data of the high secrecy are erased, the control function of the discriminating circuit is temporarily canceled and the double writing is executed. Then, the permanent erase of the data can be easily executed.