公开(公告)号：AU6138000A

公开(公告)日：2001-04-05

申请号：AU6138000

申请日：2000-09-28

Applicant: SONY CORP

Inventor： SHISHIDO YUKIO ,  TSUKATANI SHIGEKI ,  TOYAMA KATSUMI ,  INOKUCHI TATSUYA ,  SAKO YOICHIRO ,  KAWASHIMA TETSUJI

IPC: G11B27/32 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B19/02 ,  G11B19/06 ,  G11B19/12 ,  G11B20/10 ,  G11B20/12 ,  G11B27/034 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B27/34 ,  G11B27/28

Abstract: An absolute time area is expanded by using an area of relatively low importance such as zero-data area and/or relative time area or the like in a Q channel in a sub-code in a recording format of a CD. Thus, an absolute time expression which can cope with a disc having a large capacity or the like can be performed. An absolute time expression is performed in a manner such that a digit of "100 minutes" is BCD expressed by using lower 4 bits in the 8-bit zero-data area ZERO. Thus, the absolute time of up to 999min59sec74frame can be expressed. A digit of "hour" is also expressed by using lower 4 bits in the zero-data area. For example, identification information showing that a disc is a high density optical disc of a large capacity is expressed by using upper 4 bits in the zero-data area ZERO.

公开(公告)号：AU6137900A

公开(公告)日：2001-04-05

申请号：AU6137900

申请日：2000-09-28

Applicant: SONY CORP

Inventor： KAWASHIMA TETSUJI ,  SHISHIDO YUKIO ,  TSUKATANI SHIGEKI ,  INOKUCHI TATSUYA ,  SAKO YOICHIRO ,  TOYAMA KATSUMI

IPC: G11B20/12 ,  G11B7/004 ,  G11B7/007 ,  G11B7/09 ,  G11B7/30 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B27/28

Abstract: A data record medium having an address representing portion of a predetermined number of bits for representing time information composed of minutes, seconds, and frames in a binary coded decimal notation is disclosed, wherein addresses represented in a binary notation instead of the binary coded decimal notation are placed in the address representing portion.

公开(公告)号：DE69025309T2

公开(公告)日：1996-06-13

申请号：DE69025309

申请日：1990-12-27

Applicant: SONY CORP

Inventor： SENSHU SUSUMU ,  KAWASHIMA TETSUJI

IPC: G11B7/004 ,  G11B11/105 ,  G11B20/14 ,  G11B20/18 ,  G11B20/10

公开(公告)号：DE69024769T2

公开(公告)日：1996-06-05

申请号：DE69024769

申请日：1990-11-29

Applicant: SONY CORP

Inventor： WATANABE TETSU ,  YAMAGAMI TAMOTSU ,  KAWASHIMA TETSUJI

IPC: G11B11/10 ,  G11B11/105 ,  G11B20/10 ,  G11B7/00

公开(公告)号：DE68917715T2

公开(公告)日：1995-01-12

申请号：DE68917715

申请日：1989-06-19

Applicant: SONY CORP

Inventor： WATANABE TETSU ,  KAWASHIMA TETSUJI ,  FUJITA GORO

IPC: G11B11/10 ,  G11B11/105 ,  G11B19/14 ,  G11B33/14

Abstract: In a magneto-optical recording apparatus, light spots are successively formed on a magneto-optical disc (2) at a timing of a predetermined reference clock signal (SCK), and record data are magnetically recorded onto the disc (2) by applying a predetermined modulation magnetic field (HM) of which the polarity is inverted depending on the record data in synchronism with the reference clock signal (SCK). At least one of the timing of irradiating a light beam (LA1) forming the light spots, the light volume of the beam or the irradiation time is controlled depending upon the temperature of the disc (2) and/or the scanning position of the light spot, in order to form a pit (P) at a correct position relative to the timing of the reference clock signal (SCK).

公开(公告)号：DE68917715D1

公开(公告)日：1994-09-29

申请号：DE68917715

申请日：1989-06-19

Applicant: SONY CORP

Inventor： WATANABE TETSU ,  KAWASHIMA TETSUJI ,  FUJITA GORO

IPC: G11B11/10 ,  G11B11/105 ,  G11B19/14 ,  G11B33/14

Abstract: In a magneto-optical recording apparatus, light spots are successively formed on a magneto-optical disc (2) at a timing of a predetermined reference clock signal (SCK), and record data are magnetically recorded onto the disc (2) by applying a predetermined modulation magnetic field (HM) of which the polarity is inverted depending on the record data in synchronism with the reference clock signal (SCK). At least one of the timing of irradiating a light beam (LA1) forming the light spots, the light volume of the beam or the irradiation time is controlled depending upon the temperature of the disc (2) and/or the scanning position of the light spot, in order to form a pit (P) at a correct position relative to the timing of the reference clock signal (SCK).

公开(公告)号：AT110486T

公开(公告)日：1994-09-15

申请号：AT89907287

申请日：1989-06-19

Applicant: SONY CORP

Inventor： WATANABE TETSU ,  KAWASHIMA TETSUJI ,  FUJITA GORO

IPC: G11B11/10 ,  G11B11/105 ,  G11B19/14 ,  G11B33/14

Abstract: In a magneto-optical recording apparatus, light spots are successively formed on a magneto-optical disc (2) at a timing of a predetermined reference clock signal (SCK), and record data are magnetically recorded onto the disc (2) by applying a predetermined modulation magnetic field (HM) of which the polarity is inverted depending on the record data in synchronism with the reference clock signal (SCK). At least one of the timing of irradiating a light beam (LA1) forming the light spots, the light volume of the beam or the irradiation time is controlled depending upon the temperature of the disc (2) and/or the scanning position of the light spot, in order to form a pit (P) at a correct position relative to the timing of the reference clock signal (SCK).

公开(公告)号：DE60041861D1

公开(公告)日：2009-05-07

申请号：DE60041861

申请日：2000-12-08

Applicant: SONY CORP

Inventor： SHISHIDO YUKIO ,  KAWASHIMA TETSUJI

IPC: G11B7/007 ,  G11B19/12 ,  G11B7/004 ,  G11B7/24 ,  G11B20/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  H04N5/781

Abstract: The present invention facilitates identification of whether or not an optical disc is a optical disc of which recording capacity is enlarged. A synchronization pattern of ATIP information embedded into guide grooves irradiated with a light spot is made to be different between a high density optical disc and a standard density optical disc of which recording capacity is not enlarged. Specifically, while the synchronization pattern of the standard density optical disc is preferably made into "3T+1T+1T+3T" (where "T" represents a minimum channel bit of a signal obtained by reading a positional information), the synchronization pattern of the high density optical disc is preferably made into "3T+3T+1T+1T" for example. By reading the ATIP information and recognizing the synchronization pattern thereof, it can be easily and quickly identified whether the optical disc has a standard density or a high density.

公开(公告)号：DE60136180D1

公开(公告)日：2008-11-27

申请号：DE60136180

申请日：2001-06-13

Applicant: SONY CORP

Inventor： INOKUCHI TATSUYA ,  KAWASHIMA TETSUJI ,  SAKO YOICHIRO

IPC: G11B20/12 ,  H04N5/91 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  G11B27/00 ,  G11B27/30 ,  H04N7/08 ,  H04N7/081

Abstract: A recording medium within which are recorded content data in which additional information including management information having a data length corresponding to a packet is embedded in a state where the content data are distributed to a plurality of packets, wherein the management information includes an information portion where information is rewritable and an information portion where information is not rewritable and an identifier for identifying the rewritable information portion and the nonrewritable information portion is provided for each of the information portions.

公开(公告)号：MY128116A

公开(公告)日：2007-01-31

申请号：MYPI20013377

申请日：2001-07-17

Applicant: SONY CORP

Inventor： KAWASHIMA TETSUJI ,  SHISHIDO YUKIO

IPC: G11B7/00 ,  G11B19/20 ,  G11B19/12 ,  G11B19/26 ,  G11B19/28

Abstract: THE AMOUNT OF LIGHT REFLECTED FROM A DISK IS DETECTED, AND IT IS DETERMINED ACCORDING TO THE AMOUNT OF REFLECTED LIGHT WHETHER THE DISK IS A RECORDABLE DISK OR A REWRITABLE DISK. THE DISK IS CONTROLLED ACCORDING TO THE RESULT OF DETERMINATION SUCH THAT IT IS ROTATED AT A CONSTANT ANGULAR VELOCITY (CAV) OR AT A CONSTANT LINEAR VELOCITY (CLV) AND RECORDING IS EXECUTED. FURTHER, ROTATION DRIVING CONTROL OF THE DISK IS SELECTED ACCORDING TO FACTORS OTHER THAN THE TYPE OF THE DISK, SUCH AS ACCORDING TO WHETHER RANDOM RECORDING IS ALLOWED OR NOT, ACCORDING TO A RECORDING STATE IN THE DISK, ACCORDING TO WHETHER ALTERNATIVE AREA IS PROVIDED OR NOT, ACCORDING TO A RECORDING START POSITION, OR ACCORDING TO WHETHER INITIALIZATION IS REQUIRED OR NOT. CLV CONTROL OR CAV CONTROL IS APPROPRIATELY SELECTED FOR A DISK AT RECORDING TO SUPPRESS A REDUCTION IN ACCESSIBILITY AND A REDUCTION IN DATA TRANSMISSION RATE.(FIG 1)