公开(公告)号：DE69637033T2

公开(公告)日：2007-10-31

申请号：DE69637033

申请日：1996-06-18

Applicant: SONY CORP

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

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

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：DE69636823T2

公开(公告)日：2007-10-18

申请号：DE69636823

申请日：1996-06-18

Applicant: SONY CORP

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

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

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：DE69836168T2

公开(公告)日：2007-09-06

申请号：DE69836168

申请日：1998-05-15

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 ,  G11B20/00 ,  G11B20/10 ,  G11B23/033 ,  G11B27/034 ,  G11B27/036 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B27/34 ,  G11B27/36

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：DE69636823D1

公开(公告)日：2007-02-15

申请号：DE69636823

申请日：1996-06-18

Applicant: SONY CORP

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

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

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：DE69836168D1

公开(公告)日：2006-11-30

申请号：DE69836168

申请日：1998-05-15

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 ,  G11B20/00 ,  G11B20/10 ,  G11B23/033 ,  G11B27/034 ,  G11B27/036 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B27/34 ,  G11B27/36

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：DE69635069D1

公开(公告)日：2005-09-22

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: G06F1/00 ,  G06F21/10 ,  G06F21/62 ,  G06Q20/38 ,  G11B7/00 ,  G11B7/004 ,  G11B20/00 ,  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：DE69632243T2

公开(公告)日：2005-01-13

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：DE69630060D1

公开(公告)日：2003-10-23

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：DE69618509T2

公开(公告)日：2002-08-29

申请号：DE69618509

申请日：1996-07-12

Applicant: SONY CORP

Inventor： SAKO YOICHIRO ,  OSAWA YOSHITOMO ,  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：DE69618509D1

公开(公告)日：2002-02-21

申请号：DE69618509

申请日：1996-07-12

Applicant: SONY CORP

Inventor： SAKO YOICHIRO ,  OSAWA YOSHITOMO ,  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).