公开(公告)号：AU752875B2

公开(公告)日：2002-10-03

申请号：AU6706298

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 ,  G11B7/125

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：CA2032960A1

公开(公告)日：1991-06-28

申请号：CA2032960

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

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：DE69635312T2

公开(公告)日：2006-07-20

申请号：DE69635312

申请日：1996-06-27

Applicant: SONY CORP

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

IPC: G11B20/00 ,  G11B20/10 ,  G06F1/00 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24 ,  G11B11/105 ,  G11B19/12

Abstract: An optical disk (D) has a first working area and a second working area having two recording formats. Encrypted data is recorded on the second working area. Encrypting key data is recorded on the first working area. The encrypting key data is used for decoding the encrypted data. This recording technique makes easy reproduction of the recorded data quite difficult. If data recorded on a bit-formed portion can be reproduced by any means, the data signal recorded on the optical disk cannot easily be reproduced.

公开(公告)号：DE69635069T2

公开(公告)日：2006-06-01

申请号：DE69635069

申请日：1996-06-25

Applicant: SONY CORP

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

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

Abstract: A data recording apparatus is capable of easily preventing copying of information in that, even if information is copied, the copied information cannot be reproduced. The data recording apparatus has a terminal (2) to which encoder identification information ("ID") specific to the data recording apparatus is input, a recording unit (5) for recording at least the encoder ID on an optical disk (D), and an encoding circuit (3) for encoding, in accordance with the encoder ID, data supplied via a terminal (1) and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk (D).

公开(公告)号：DE69630060T2

公开(公告)日：2004-07-08

申请号：DE69630060

申请日：1996-07-12

Applicant: SONY CORP

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

IPC: G06F1/00 ,  G11B20/00 ,  G11B20/18

Abstract: A data transmitting apparatus, which disallows encryption to be easily decoded and enhances the secrecy of key information, includes an error correction coding process block (13). In the block (13), an input converting circuit (14) performs a logic operation with respect to information data from an interface circuit (12) according to key data. The converted information data is sent to an encoder (15) for generating parity data. The parity data is mixed (16) with the information data before conversion. The error correction coding block (13) sends the resulting data to a modulating circuit (17) for modulating the data. The modulated data is recorded on a disk record medium (20).

公开(公告)号：DE69632243D1

公开(公告)日：2004-05-27

申请号：DE69632243

申请日：1996-06-18

Applicant: SONY CORP

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

IPC: G06F12/00 ,  G06F1/00 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/10 ,  G11B27/30 ,  G11B27/32 ,  H04N5/85 ,  H04N5/913 ,  G06F12/14 ,  G06F3/06

Abstract: An input is ciphered in at least one of a sector forming circuit 13, a scrambling circuit 14, a header appendage circuit 15, an error correction encoding circuit 16, a modulation circuit 18 and a synchronization appendage circuit 18, used for processing input data for forming a recording signal. Not only the key for ciphering itself in the circuits but also the information as to which of the circuits has been used for ciphering becomes the key for ciphering. This realizes ciphering difficult to decode by a simplified structure.

公开(公告)号：AU6706298A

公开(公告)日：1998-11-19

申请号：AU6706298

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 ,  G11B7/125

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：AU1433888A

公开(公告)日：1988-10-20

申请号：AU1433888

申请日：1988-04-07

Applicant: SONY CORP

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

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：DE69638245D1

公开(公告)日：2010-09-30

申请号：DE69638245

申请日：1996-06-25

Applicant: SONY CORP

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

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

公开(公告)号：DE69637467T2

公开(公告)日：2009-03-05

申请号：DE69637467

申请日：1996-06-25

Applicant: SONY CORP

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

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

Abstract: A data recording apparatus is capable of easily preventing copying of information in that, even if information is copied, the copied information cannot be reproduced. The data recording apparatus has a terminal (2) to which encoder identification information ("ID") specific to the data recording apparatus is input, a recording unit (5) for recording at least the encoder ID on an optical disk (D), and an encoding circuit (3) for encoding, in accordance with the encoder ID, data supplied via a terminal (1) and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk (D).